子项号 A区 B区 桩型 PHC－400（90）AB－C80－11，11 PHC－600（110）AB－C80－11，10 总计 桩总数 152 178 330
三、工程质量要求
1、依据设计文件的要求，本工程所用的材料、设计、施工必须达到现行中华人民共和国以及省、自治区、直辖市或行业的工程建设标准、规范的要求，该工程施工除达到以上标准外，还要满足一下要求：
⑴、桩入土定位垂直度允许偏差不得大于0.5%桩长；桩位允许偏差：沿轴线方向不大于100mm，偏轴线方向不大于70mm。详见下表：
桩型 1 项 目 单排或双排条形桩基： （1）垂直于条形桩基纵轴方向 （2）平行于条形桩基纵轴方向 2 3 4 桩数为1-3根桩基中的桩 桩数为4-6根桩基中的桩 桩数大于16根桩基中的桩： （1）最外边的桩 （2）中间桩 允许偏差（mm） 70 100 100 1/3桩径或1/3边长 1/3桩位或1/3边长 1/2桩位或1/2边长 f backbone backbone role; to full strengthening members youth work, full play youth employees in company development in the of force role; to improve independent Commission against corruption work level, strengthening on enterprise business key link of effectiveness monitored. , And maintain stability. To further strengthen publicity and education, improve the overall legal system. We must strengthen safety management, establish and improve the education, supervision, and evaluation as one of the traffic safety management mechanism. o conscientiously sum up the Olympic security controls, promoting integrated management to a higher level, higher standards, a higher level of development. Employees, today is lunar calendar on December 24, the ox Bell is about to ring, at this time of year, we clearly feel the pulse of the XX power generation company to flourish, to more clearly hear XX power generation companies mature and symmetry breathing. Recalling past one another across a railing, we are enthusiastic and full of confidence. Future development opportunities, we more exciting fight more spirited. Employees, let us together across 2013 full of challenges and opportunities, to create a green, low-cost operation, full of humane care of a world-class power generation company and work hard! The occasion of the Spring Festival, my sincere wish that you and the families of the staff in the new year, good health, happy, happyWe will continue to improve the company's internal control system, and steady improvement in ability to manage and control, optimize business processes, to ensure smooth processes, responsibilities in place; to further strengthen internal controls, play a control post independent oversight role of evaluation complying with third-party responsibility; to actively make use of internal audit tools detect potential management, streamline, standardize related transactions, strengthening operations in accordance with law. Deepening the information management to ensure full communication \"zero resistance\". o constantly perfect ERP, and BFS++, and PI, and MIS, and SCM, information system based construction, full integration information system, achieved information resources shared; to expand Portal system application of breadth and depth, play information system on enterprise of Assistant role; to perfect daily run maintenance operation of records, promote problem reasons analysis and system handover; to strengthening BFS++, and ERP, and SCM, technology application of training, improve employees application information system of capacity and level. Humanistic care to ensure \"zero.\" To strengthening Humanities care, continues to foster company wind clear, and gas are, and heart Shun of culture atmosphere; strengthening love helped trapped, care difficult employees; carried out style activities, rich employees life; strengthening health and labour protection, organization career health medical, control career against; continues to implementation psychological warning prevention system, training employees health of character, and stable of mood and enterprising of attitude, created friendly fraternity of Humanities environment. To strengthen risk management, ensure that the business of \"zero risk\". To strengthened business plans management, will business business plans cover to all level, ensure the business can control in control; to close concern financial, and coal electric linkage, and energy-saving scheduling, national policy trends, strengthening track, active should; to implementation State-owned assets method, further specification business financial management; to perfect risk tube control system, achieved risk recognition, and measure, and assessment, and report, and control feedback of closed ring management, improve risk prevention capacity. o further standardize trading, and strive to achieve \"according to law, standardize and fair.\" Innovation of performance management, to ensure that potential employees \"zero fly\". o strengthen performance management, process control, enhance employee evaluation and levels of effective communication to improve performance management. To further quantify and refine employee standards ... Work, full play party, and branch, and members in \"five type Enterprise\" construction in the of core role, and fighting fortress role and pioneer model role; to continues to strengthening \"four good\" leadership construction, full play levels cadres in enterprise development in the⑵、本工程桩端以设计标高为主，压力控制为辅，桩顶标高允许偏差为：-50～+50mm，采用水准仪控制桩顶标高
四、施工工艺方案和设备选型配套
1、施工工艺
本工程我公司采用静压法施工，全液静力压桩是通过压力将桩压入土中的一种沉桩工艺，其全部动作均由液压驱动，具有“自行移位”的全功能，能独立完成“吊桩—压桩”的全过程。移位时，行走机构采用提携式步履，把船体当作铺设的轨道，通过纵、横向油缸的伸缩与回程，实现压桩机的纵横向行走。压桩时，利用压桩机本身的重量及配重作反力，由桩机本身配备的卷扬机将桩垂直吊入压桩机的桩帽内，油缸伸程利用桩帽和塔架将桩对准桩位，压桩油缸伸程将桩压入地层中，压桩完毕后，压桩油缸回程，重返上述动作，可实现连续压桩操作，直至用送桩器把桩送入预定土层。其工艺流程见下表
f backbone backbone role; to full strengthening members youth work, full play youth employees in company development in the of force role; to improve independent Commission against corruption work level, strengthening on enterprise business key link of effectiveness monitored. , And maintain stability. To further strengthen publicity and education, improve the overall legal system. We must strengthen safety management, establish and improve the education, supervision, and evaluation as one of the traffic safety management mechanism. o conscientiously sum up the Olympic security controls, promoting integrated management to a higher level, higher standards, a higher level of development. Employees, today is lunar calendar on December 24, the ox Bell is about to ring, at this time of year, we clearly feel the pulse of the XX power generation company to flourish, to more clearly hear XX power generation companies mature and symmetry breathing. Recalling past one
another across a railing, we are enthusiastic and full of confidence. Future development opportunities, we more exciting fight more spirited. Employees, let us together across 2013 full of challenges and opportunities, to create a green, low-cost operation, full of humane care of a world-class power generation company and work hard! The occasion of the Spring Festival, my sincere wish that you and the families of the staff in the new year, good health, happy, happy2
We will continue to improve the company's internal control system, and steady improvement in ability to manage and control, optimize business processes, to ensure smooth processes, responsibilities in place; to further strengthen internal controls, play a control post independent oversight role of evaluation complying with third-party responsibility; to actively make use of internal audit tools detect potential management, streamline, standardize related transactions, strengthening operations in accordance with law. Deepening the information management to ensure full communication \"zero resistance\". o constantly perfect ERP, and BFS++, and PI, and MIS, and SCM, information system based construction, full integration information system, achieved information resources shared; to expand Portal system application of breadth and depth, play information system on enterprise of Assistant role; to perfect daily run maintenance operation of records, promote problem reasons analysis and system handover; to strengthening BFS++, and ERP, and SCM, technology application of training, improve employees application information system of capacity and level. Humanistic care to ensure \"zero.\" To strengthening Humanities care, continues to foster company wind clear, and gas are, and heart Shun of culture atmosphere; strengthening love helped trapped, care difficult employees; carried out style activities, rich employees life; strengthening health and labour protection, organization career health medical, control career against; continues to implementation psychological warning prevention system, training employees health of character, and stable of mood and enterprising of attitude, created friendly fraternity of Humanities environment. To strengthen risk management, ensure that the business of \"zero risk\". To strengthened business plans management, will business business plans cover to all level, ensure the business can control in control; to close concern financial, and coal electric linkage, and energy-saving scheduling, national policy trends, strengthening track, active should; to implementation State-owned assets method, further specification business financial management; to perfect risk tube control system, achieved risk recognition, and measure, and assessment, and report, and control feedback of closed ring management, improve risk prevention capacity. o further standardize trading, and strive to achieve \"according to law, standardize and fair.\" Innovation of performance management, to ensure that potential employees \"zero fly\". o strengthen performance management, process control, enhance employee evaluation and levels of effective communication to improve performance management. To further quantify and refine employee standards ... Work, full play party, and branch, and members in \"five type Enterprise\" construction in the of core role, and fighting fortress role and pioneer model role; to continues to strengthening \"four good\" leadership construction, full play levels cadres in enterprise development in the
静压桩施工流程图：
焊接 检查垂直度 合格 上节桩插入 合格 外观检查 下节桩压入 验质保书 电焊条 PHC管桩 合格证 下节桩插入 完成记录 材料 验收 测桩顶标高 图纸交底 测放桩位 送桩 踏勘现场 建立控制网 办理中间验收 桩机对位 拔送桩管 检查垂直度
验收 测桩位移及垂直度 上节桩压入 f backbone backbone role; to full strengthening members youth work, full play youth employees in company development in the of force role; to improve independent Commission against corruption work level, strengthening on enterprise business key link of effectiveness monitored. , And maintain stability. o further strengthen publicity and education, improve the overall legal system. We must strengthen safety management, establish and improve the education, supervision, and evaluation as one of the traffic safety management mechanism. o conscientiously sum up the Olympic security controls, promoting integrated management to a higher level, higher standards, a higher level of development. Employees, today is lunar calendar on December 24, the ox Bell is about to ring, at this time of year, we clearly feel the pulse of the XX power generation company to flourish, to more clearly hear XX power generation companies mature and symmetry breathing. Recalling past one another across a railing, we are enthusiastic and full of confidence. Future development opportunities, we more exciting fight more spirited. Employees, let us together across 2013 full of challenges and opportunities, to create a green, low-cost operation, full of humane care of a world-class power generation company and work hard! The occasion of the Spring Festival, my sincere wish that you and the families of the staff in the new year, good health, happy, happyWe will continue to improve the company's internal control system, and steady improvement in ability to manage and control, optimize business processes, to ensure smooth processes, responsibilities in place; to further strengthen internal controls, play a control post independent oversight role of evaluation complying with third-party responsibility; to actively make use of internal audit tools detect potential management, streamline, standardize related transactions, strengthening operations in accordance with law. Deepening the information management to ensure full communication \"zero resistance\". o constantly perfect ERP, and BFS++, and PI, and MIS, and SCM, information system based construction, full integration information system, achieved information resources shared; to expand Portal system application of breadth and depth, play information system on enterprise of Assistant role; to perfect daily run maintenance operation of records, promote problem reasons analysis and system handover; to strengthening BFS++, and ERP, and SCM, technology application of training, improve employees application information system of capacity and level. Humanistic care to ensure \"zero.\" To strengthening Humanities care, continues to foster company wind clear, and gas are, and heart Shun of culture atmosphere; strengthening love helped trapped, care difficult employees; carried out style activities, rich employees life; strengthening health and labour protection, organization career health medical, control career against; continues to implementation psychological warning prevention system, training employees health of character, and stable of mood and enterprising of attitude, created friendly fraternity of Humanities environment. To strengthen risk management, ensure that the business of \"zero risk\". To strengthened business plans management, will business business plans cover to all level, ensure the business can control in control; to close concern financial, and coal electric linkage, and energy-saving scheduling, national policy trends, strengthening track, active should; to implementation State-owned assets method, further specification business financial management; to perfect risk tube control system, achieved risk recognition, and measure, and assessment, and report, and control feedback of closed ring management, improve risk prevention capacity. o further standardize trading, and strive to achieve \"according to law, standardize and fair.\" Innovation of performance management, to ensure that potential employees \"zero fly\". o strengthen performance management, process control, enhance employee evaluation and levels of effective communication to improve performance management. To further quantify and refine employee standards ... Work, full play party, and branch, and members in \"five type Enterprise\" construction in the of core role, and fighting fortress role and pioneer model role; to continues to strengthening \"four good\" leadership construction, full play levels cadres in enterprise development in the2、设备选型配套
根据施工工艺的要求，在本工程施工中，选用相应静力压桩机施工及其成套施工设备，进行压桩施工；施工机械配备详见下表：
主要施工机械配备清单
序 号 1 2 3 4 5 6 7 设备名称 静力压桩机 静力压桩机 履带吊 电焊机 经纬仪 水准仪 送桩管 型 号 YZY-600型 YZY-300型 W-1001-15型 BX—500 J6 DS28 数 量 1台套 1台套 2台 4台 4套 4套 3 备注 注：其他辅助设备、工具按常规施工配置。
五、施工管理力量部署及劳动力投入
根据工程量和施工工期的要求，确定满足正常生产需要的施工力量及其分工布置，合理地组织安排劳动力，以确保整个施工过程的连续紧凑，本工程各工种人员配置情况详见下表：
f backbone backbone role; to full strengthening members youth work, full play youth employees in company development in the of force role; to improve independent Commission against corruption work level, strengthening on enterprise business key link of effectiveness monitored. , And maintain stability. To further strengthen publicity and education, improve the overall legal system. We must strengthen safety management, establish and improve the education, supervision, and evaluation as one of the traffic safety management mechanism. o conscientiously sum up the Olympic security controls, promoting integrated management to a higher level, higher standards, a higher level of development. Employees, today is lunar calendar on December 24, the ox Bell is about to ring, at this time of year, we clearly feel the pulse of the XX power generation company to flourish, to more clearly hear XX power generation companies mature and symmetry breathing. Recalling past one
another across a railing, we are enthusiastic and full of confidence. Future development opportunities, we more exciting fight more spirited. Employees, let us together across 2013 full of challenges and opportunities, to create a green, low-cost operation, full of humane care of a world-class power generation company and work hard! The occasion of the Spring Festival, my sincere wish that you and the families of the staff in the new year, good health, happy, happy4
We will continue to improve the company's internal control system, and steady improvement in ability to manage and control, optimize business processes, to ensure smooth processes, responsibilities in place; to further strengthen internal controls, play a control post independent oversight role of evaluation complying with third-party responsibility; to actively make use of internal audit tools detect potential management, streamline, standardize related transactions, strengthening operations in accordance with law. Deepening the information management to ensure full communication \"zero resistance\". o constantly perfect ERP, and BFS++, and PI, and MIS, and SCM, information system based construction, full integration information system, achieved information resources shared; to expand Portal system application of breadth and depth, play information system on enterprise of Assistant role; to perfect daily run maintenance operation of records, promote problem reasons analysis and system handover; to strengthening BFS++, and ERP, and SCM, technology application of training, improve employees application information system of capacity and level. Humanistic care to ensure \"zero.\" To strengthening Humanities care, continues to foster company wind clear, and gas are, and heart Shun of culture atmosphere; strengthening love helped trapped, care difficult employees; carried out style activities, rich employees life; strengthening health and labour protection, organization career health medical, control career against; continues to implementation psychological warning prevention system, training employees health of character, and stable of mood and enterprising of attitude, created friendly fraternity of Humanities environment. To strengthen risk management, ensure that the business of \"zero risk\". To strengthened business plans management, will business business plans cover to all level, ensure the business can control in control; to close concern financial, and coal electric linkage, and energy-saving scheduling, national policy trends, strengthening track, active should; to implementation State-owned assets method, further specification business financial management; to perfect risk tube control system, achieved risk recognition, and measure, and assessment, and report, and control feedback of closed ring management, improve risk prevention capacity. o further standardize trading, and strive to achieve \"according to law, standardize and fair.\" Innovation of performance management, to ensure that potential employees \"zero fly\". o strengthen performance management, process control, enhance employee evaluation and levels of effective communication to improve performance management. To further quantify and refine employee standards ... Work, full play party, and branch, and members in \"five type Enterprise\" construction in the of core role, and fighting fortress role and pioneer model role; to continues to strengthening \"four good\" leadership construction, full play levels cadres in enterprise development in the
项目管理及施工人员岗位责任表
序岗 位 人数 号 全面领导工程施工，是工程质量、进度、安全、效益1 项目经理 1 的第一责任人。 2 项目工程师 3 技术质检员 4 5 6 施工员 测量员 安全员 1 1 负责各项质量监督工作。 1 1 1 全安全设备，建立文明工地。 做好材料供应，计划和消耗统计工作，对进场材料进7 材料后勤 1 行把关验收和认真保管。负责场地文明生产，保障职工生活供给。 8 9 机台 电焊工 18 4 1 30 按规范及设计质量要求负责沉桩。 负责电焊接桩。 负责设备的修理保养。 负责施工生产管理，是质量保证的重要管理人。 负责工程测量工作，确保桩位正确，桩身垂直。 负责施工中安全教育，监督劳动保护的正确使用，完技术施工、质量管理及合同管理的直接负责人。 协助项目工程师做好技术工作，收集汇总技术资料，主要职责 10 电工机修 11
合 计
f backbone backbone role; to full strengthening members youth work, full play youth employees in company development in the of force role; to improve independent Commission against corruption work level, strengthening on enterprise business key link of effectiveness monitored. , And maintain stability. o further strengthen publicity and education, improve the overall legal system. We must strengthen safety management, establish and improve the education, supervision, and evaluation as one of the traffic safety management mechanism. o conscientiously sum up the Olympic security controls, promoting integrated management to a higher level, higher standards, a higher level of development. Employees, today is lunar calendar on December 24, the ox Bell is about to ring, at this time of year, we clearly feel the pulse of the XX power generation company to flourish, to more clearly hear XX power generation companies mature and symmetry breathing. Recalling past one another across a railing, we are enthusiastic and full of confidence. Future development opportunities, we more exciting fight more spirited. Employees, let us together across 2013 full of challenges and opportunities, to create a green, low-cost operation, full of humane care of a world-class power generation company and work hard! The occasion of the Spring Festival, my sincere wish that you and the families of the staff in the new year, good health, happy, happyWe will continue to improve the company's internal control system, and steady improvement in ability to manage and control, optimize business processes, to ensure smooth processes, responsibilities in place; to further strengthen internal controls, play a control post independent oversight role of evaluation complying with third-party responsibility; to actively make use of internal audit tools detect potential management, streamline, standardize related transactions, strengthening operations in accordance with law. Deepening the information management to ensure full communication \"zero resistance\". o constantly perfect ERP, and BFS++, and PI, and MIS, and SCM, information system based construction, full integration information system, achieved information resources shared; to expand Portal system application of breadth and depth, play information system on enterprise of Assistant role; to perfect daily run maintenance operation of records, promote problem reasons analysis and system handover; to strengthening BFS++, and ERP, and SCM, technology application of training, improve employees application information system of capacity and level. Humanistic care to ensure \"zero.\" To strengthening Humanities care, continues to foster company wind clear, and gas are, and heart Shun of culture atmosphere; strengthening love helped trapped, care difficult employees; carried out style activities, rich employees life; strengthening health and labour protection, organization career health medical, control career against; continues to implementation psychological warning prevention system, training employees health of character, and stable of mood and enterprising of attitude, created friendly fraternity of Humanities environment. To strengthen risk management, ensure that the business of \"zero risk\". To strengthened business plans management, will business business plans cover to all level, ensure the business can control in control; to close concern financial, and coal electric linkage, and energy-saving scheduling, national policy trends, strengthening track, active should; to implementation State-owned assets method, further specification business financial management; to perfect risk tube control system, achieved risk recognition, and measure, and assessment, and report, and control feedback of closed ring management, improve risk prevention capacity. o further standardize trading, and strive to achieve \"according to law, standardize and fair.\" Innovation of performance management, to ensure that potential employees \"zero fly\". o strengthen performance management, process control, enhance employee evaluation and levels of effective communication to improve performance management. To further quantify and refine employee standards ... Work, full play party, and branch, and members in \"five type Enterprise\" construction in the of core role, and fighting fortress role and pioneer model role; to continues to strengthening \"four good\" leadership construction, full play levels cadres in enterprise development in the1、施工组织设置
为了加强施工管理，建立健全完善责任制体系，在本项目的施工管理中，拟
采用公司总经理和三总师领导下的项目经理负责制。
为了加强施工管理,建立健全施工组织，拟派具有丰富实践经验、很强管理能
力的人员组织施工，并成立工程项目部。其现场组织管理机构见下表:
现场组织管理程序框图
公司 作业层 项目经理 项目工程师 测量组 物供机修 质检组 施工组
2、材料质量控制措施
⑴、在选择商品PHC管桩供应单位时，必须实地考察，调查其生产规模、供货质量、数量、信誉度，并要有相应生产许可证、质保资料。
⑵、PHC钢筋混凝土预制管桩的质量必须符合设计要求和施工规范的要求。 ⑶、供应商应得到业主及监理工程师的认可。本工程PHC管桩由甲方选择相应资质单位制作供应。
⑷、所有使用的物料，应符合设计及有关规范规定，所有工程中使用的原材料必须具有产品合格证；
⑸、PHC管桩进场验收：
①、PHC管桩进场后，由质检员负责查验质保资料，会同总包和监理进行外观验收，根据当地质检站规定进行其他项目验收，经验收合格方可签字后使用。
f backbone backbone role; to full strengthening members youth work, full play youth employees in company development in the of force role; to improve independent Commission against corruption work level, strengthening on enterprise business key link of effectiveness monitored. , And maintain stability. To further strengthen publicity and education, improve the overall legal system. We must strengthen safety management, establish and improve the education, supervision, and evaluation as one of the traffic safety management mechanism. o conscientiously sum up the Olympic security controls, promoting integrated management to a higher level, higher standards, a higher level of development. Employees, today is lunar calendar on December 24, the ox Bell is about to ring, at this time of year, we clearly feel the pulse of the XX power generation company to flourish, to more clearly hear XX power generation companies mature and symmetry breathing. Recalling past one
another across a railing, we are enthusiastic and full of confidence. Future development opportunities, we more exciting fight more spirited. Employees, let us together across 2013 full of challenges and opportunities, to create a green, low-cost operation, full of humane care of a world-class power generation company and work hard! The occasion of the Spring Festival, my sincere wish that you and the families of the staff in the new year, good health, happy, happy6
We will continue to improve the company's internal control system, and steady improvement in ability to manage and control, optimize business processes, to ensure smooth processes, responsibilities in place; to further strengthen internal controls, play a control post independent oversight role of evaluation complying with third-party responsibility; to actively make use of internal audit tools detect potential management, streamline, standardize related transactions, strengthening operations in accordance with law. Deepening the information management to ensure full communication \"zero resistance\". o constantly perfect ERP, and BFS++, and PI, and MIS, and SCM, information system based construction, full integration information system, achieved information resources shared; to expand Portal system application of breadth and depth, play information system on enterprise of Assistant role; to perfect daily run maintenance operation of records, promote problem reasons analysis and system handover; to strengthening BFS++, and ERP, and SCM, technology application of training, improve employees application information system of capacity and level. Humanistic care to ensure \"zero.\" To strengthening Humanities care, continues to foster company wind clear, and gas are, and heart Shun of culture atmosphere; strengthening love helped trapped, care difficult employees; carried out style activities, rich employees life; strengthening health and labour protection, organization career health medical, control career against; continues to implementation psychological warning prevention system, training employees health of character, and stable of mood and enterprising of attitude, created friendly fraternity of Humanities environment. To strengthen risk management, ensure that the business of \"zero risk\". To strengthened business plans management, will business business plans cover to all level, ensure the business can control in control; to close concern financial, and coal electric linkage, and energy-saving scheduling, national policy trends, strengthening track, active should; to implementation State-owned assets method, further specification business financial management; to perfect risk tube control system, achieved risk recognition, and measure, and assessment, and report, and control feedback of closed ring management, improve risk prevention capacity. o further standardize trading, and strive to achieve \"according to law, standardize and fair.\" Innovation of performance management, to ensure that potential employees \"zero fly\". o strengthen performance management, process control, enhance employee evaluation and levels of effective communication to improve performance management. To further quantify and refine employee standards ... Work, full play party, and branch, and members in \"five type Enterprise\" construction in the of core role, and fighting fortress role and pioneer model role; to continues to strengthening \"four good\" leadership construction, full play levels cadres in enterprise development in the②、验收不合格的桩用红漆做好叉型标志，分开堆放，不许使用，由供桩单位进行处理，退出场地。
③、PHC管桩桩身允许偏差应符合下表的规定：
桩 身 容 许 偏 差
序号 项 目 容许偏差 5mm 序号 5 项 目 下节或上节桩的法兰 中心线的倾斜 中节桩两个法兰对 桩中心线倾斜之和 容许偏差 2mm 1 直径 2 管壁厚度 抽心圆孔中心线对桩中心线 桩尖中心线 -5mm 6 3mm 3 4
5mm 10mm ⑹、PHC管桩的堆放：
①、堆放场地平整、坚实。
②、垫木与吊点的位置应相同，并保持在同一平面上。各层垫木应上下对齐，最下层的垫木适当加宽。
③、桩的堆放尽量搬放在桩架附近，原则上按照沉桩顺利堆放，桩的堆放按不同型号分别堆放。
④、堆放层数一般不宜超过4层。叠堆二层以上时各级支垫在同一直线上，支垫在l/5处。
⑺、PHC管桩的起吊、运输
①、当桩身混凝土强度达到设计强度的70%时方可起吊，达到设计强度的100%时才能运输。桩起吊时，使每个吊点同时受力，使之保持平稳，保护桩身质量。
②、根据桩的位置和桩型，一次运输到位。
③、运输时，桩的支点应与吊点位置一致，应做到桩身平稳放置，无大的振动。
f backbone backbone role; to full strengthening members youth work, full play youth employees in company development in the of force role; to improve independent Commission against corruption work level, strengthening on enterprise business key link of effectiveness monitored. , And maintain stability. o further strengthen publicity and education, improve the overall legal system. We must strengthen safety management, establish and improve the education, supervision, and evaluation as one of the traffic safety management mechanism. o conscientiously sum up the Olympic security controls, promoting integrated management to a higher level, higher standards, a higher level of development. Employees, today is lunar calendar on December 24, the ox Bell is about to ring, at this time of year, we clearly feel the pulse of the XX power generation company to flourish, to more clearly hear XX power generation companies mature and symmetry breathing. Recalling past one another across a railing, we are enthusiastic and full of confidence. Future development opportunities, we more exciting fight more spirited. Employees, let us together across 2013 full of challenges and opportunities, to create a green, low-cost operation, full of humane care of a world-class power generation company and work hard! The occasion of the Spring Festival, my sincere wish that you and the families of the staff in the new year, good health, happy, happyWe will continue to improve the company's internal control system, and steady improvement in ability to manage and control, optimize business processes, to ensure smooth processes, responsibilities in place; to further strengthen internal controls, play a control post independent oversight role of evaluation complying with third-party responsibility; to actively make use of internal audit tools detect potential management, streamline, standardize related transactions, strengthening operations in accordance with law. Deepening the information management to ensure full communication \"zero resistance\". o constantly perfect ERP, and BFS++, and PI, and MIS, and SCM, information system based construction, full integration information system, achieved information resources shared; to expand Portal system application of breadth and depth, play information system on enterprise of Assistant role; to perfect daily run maintenance operation of records, promote problem reasons analysis and system handover; to strengthening BFS++, and ERP, and SCM, technology application of training, improve employees application information system of capacity and level. Humanistic care to ensure \"zero.\" To strengthening Humanities care, continues to foster company wind clear, and gas are, and heart Shun of culture atmosphere; strengthening love helped trapped, care difficult employees; carried out style activities, rich employees life; strengthening health and labour protection, organization career health medical, control career against; continues to implementation psychological warning prevention system, training employees health of character, and stable of mood and enterprising of attitude, created friendly fraternity of Humanities environment. To strengthen risk management, ensure that the business of \"zero risk\". To strengthened business plans management, will business business plans cover to all level, ensure the business can control in control; to close concern financial, and coal electric linkage, and energy-saving scheduling, national policy trends, strengthening track, active should; to implementation State-owned assets method, further specification business financial management; to perfect risk tube control system, achieved risk recognition, and measure, and assessment, and report, and control feedback of closed ring management, improve risk prevention capacity. o further standardize trading, and strive to achieve \"according to law, standardize and fair.\" Innovation of performance management, to ensure that potential employees \"zero fly\". o strengthen performance management, process control, enhance employee evaluation and levels of effective communication to improve performance management. To further quantify and refine employee standards ... Work, full play party, and branch, and members in \"five type Enterprise\" construction in the of core role, and fighting fortress role and pioneer model role; to continues to strengthening \"four good\" leadership construction, full play levels cadres in enterprise development in the七、施工质量保证措施
1、施工准备工作：
⑴、收集资料，搞好现场踏勘，认真完善优化施工组织设计；
⑵、搞好场地平整，合理布设现场设施，确保便于施工和排污系统畅通； ⑶、做好施工区域场地的硬实平整工作； ⑷、施工机具的进场
①、所有使用的施工机具应符合有关规定，并报监理批准； ②、所有的作业人员都必须持证上岗；
⑸、施工放样
①、测量的基轴线和水准点必须经总包和监理复核后方可使用，并且每根桩在压桩前须经监理验收后才可施工，确保桩位偏差在允许范围内。
②、桩位定位前应检查各轴线交点的距离是否与桩位图相符，无误后用直角坐标法或极坐标法测放样桩。样桩用竹片或钢筋标记，涂刷红漆便于寻找。压桩机就位后应对样桩进行复核，无误后再对中、进行压桩施工。
③、为了便于控制桩顶标高，应在压桩范围60m外引测两个以上水准控制点，经过监理的复核、验收合格后才能使用，并在施工过程中加以保护。 2、沉桩流程
根据现场的实际情况及周边环境要求，合理安排施工顺序，尽量减少道路的影响。打桩顺序遵循先压道路管线侧一排桩。这样，可以起隔断的作用，减轻压桩施工对这些保护对象的挤压。条形基础隔桩跳打，由外向内施打，承台独立拄基，桩位在6根以下的可循桩中成对称施打，桩位在8根的承台宜先中间后周边对称施打，以减小土体挤压对桩位偏差的影响。
3、沉桩质量控制
⑴、桩机设备进场后,进行安装和调试,然后移机至起点桩位处就位桩架，安装就位后应垂直平稳。
⑵、在打桩前,应用2台经纬仪对压桩机进行垂直度调正，并应在打桩期间经常校核检查。插桩就位位置是保证直桩沉桩精度的关键。正确的插桩方法如下:
①、按桩位布置地桩,用小木桩、竹桩或圆钢插入桩位中心,就位时将桩尖对准地桩。
②、以地桩为中心，用石灰画出与桩的外围同形位置，就位时将桩对准
f backbone backbone role; to full strengthening members youth work, full play youth employees in company development in the of force role; to improve independent Commission against corruption work level, strengthening on enterprise business key link of effectiveness monitored. , And maintain stability. To further strengthen publicity and education, improve the overall legal system. We must strengthen safety management, establish and improve the education, supervision, and evaluation as one of the traffic safety management mechanism. o conscientiously sum up the Olympic security controls, promoting integrated management to a higher level, higher standards, a higher level of development. Employees, today is lunar calendar on December 24, the ox Bell is about to ring, at this time of year, we clearly feel the pulse of the XX power generation company to flourish, to more clearly hear XX power generation companies mature and symmetry breathing. Recalling past one
another across a railing, we are enthusiastic and full of confidence. Future development opportunities, we more exciting fight more spirited. Employees, let us together across 2013 full of challenges and opportunities, to create a green, low-cost operation, full of humane care of a world-class power generation company and work hard! The occasion of the Spring Festival, my sincere wish that you and the families of the staff in the new year, good health, happy, happy8
We will continue to improve the company's internal control system, and steady improvement in ability to manage and control, optimize business processes, to ensure smooth processes, responsibilities in place; to further strengthen internal controls, play a control post independent oversight role of evaluation complying with third-party responsibility; to actively make use of internal audit tools detect potential management, streamline, standardize related transactions, strengthening operations in accordance with law. Deepening the information management to ensure full communication \"zero resistance\". o constantly perfect ERP, and BFS++, and PI, and MIS, and SCM, information system based construction, full integration information system, achieved information resources shared; to expand Portal system application of breadth and depth, play information system on enterprise of Assistant role; to perfect daily run maintenance operation of records, promote problem reasons analysis and system handover; to strengthening BFS++, and ERP, and SCM, technology application of training, improve employees application information system of capacity and level. Humanistic care to ensure \"zero.\" To strengthening Humanities care, continues to foster company wind clear, and gas are, and heart Shun of culture atmosphere; strengthening love helped trapped, care difficult employees; carried out style activities, rich employees life; strengthening health and labour protection, organization career health medical, control career against; continues to implementation psychological warning prevention system, training employees health of character, and stable of mood and enterprising of attitude, created friendly fraternity of Humanities environment. To strengthen risk management, ensure that the business of \"zero risk\". To strengthened business plans management, will business business plans cover to all level, ensure the business can control in control; to close concern financial, and coal electric linkage, and energy-saving scheduling, national policy trends, strengthening track, active should; to implementation State-owned assets method, further specification business financial management; to perfect risk tube control system, achieved risk recognition, and measure, and assessment, and report, and control feedback of closed ring management, improve risk prevention capacity. o further standardize trading, and strive to achieve \"according to law, standardize and fair.\" Innovation of performance management, to ensure that potential employees \"zero fly\". o strengthen performance management, process control, enhance employee evaluation and levels of effective communication to improve performance management. To further quantify and refine employee standards ... Work, full play party, and branch, and members in \"five type Enterprise\" construction in the of core role, and fighting fortress role and pioneer model role; to continues to strengthening \"four good\" leadership construction, full play levels cadres in enterprise development in the同形桩位。
③、用铁锹挖出与桩同形的浅孔，将桩插入孔内就位。 ④、使用钢或木制导框等固定桩的中心，避免发出偏移。
⑶、初沉时对不垂直的桩应及时纠正，控制垂直度小于0.5%，如遇地下障碍物使桩身倾斜时，应先清除障碍物再压入，严禁采用移动钻机的方法来调整桩的垂直度。
⑷、压同一根桩时,桩机就位、喂桩、压桩、接桩、送桩等各工序应连续施工，尽量减少接桩焊接时间。
⑸、压桩时,桩砼强度必须达到设计强度100%时方可压入。单点起吊喂桩时,吊点距桩端0.29 L(L为桩长)。压桩桩位偏差控制在允许范围内，压桩时如遇原旧基础未清除而造成桩位严重偏移者，应将桩拔出待处理后再施压，以保证桩位准确。施工时以水准仪控制桩顶高程，确保桩顶高程控制在-5cm～+5cm以内。以经纬仪控制桩的垂直度。
4、送桩
⑴、桩接头焊接完成后，焊缝应在自然条件下冷却8分钟以上方可继续沉桩。 ⑵、送桩时送桩杆的中心线与桩的中心线相重合，送桩杆标记要清晰明确，桩顶标高控制在-5~5cm内，送桩完毕要及时观察压力表读书，并做好记录。
f backbone backbone role; to full strengthening members youth work, full play youth employees in company development in the of force role; to improve independent Commission against corruption work level, strengthening on enterprise business key link of effectiveness monitored. , And maintain stability. o further strengthen publicity and education, improve the overall legal system. We must strengthen safety management, establish and improve the education, supervision, and evaluation as one of the traffic safety management mechanism. o conscientiously sum up the Olympic security controls, promoting integrated management to a higher level, higher standards, a higher level of development. Employees, today is lunar calendar on December 24, the ox Bell is about to ring, at this time of year, we clearly feel the pulse of the XX power generation company to flourish, to more clearly hear XX power generation companies mature and symmetry breathing. Recalling past one another across a railing, we are enthusiastic and full of confidence. Future development opportunities, we more exciting fight more spirited. Employees, let us together across 2013 full of challenges and opportunities, to create a green, low-cost operation, full of humane care of a world-class power generation company and work hard! The occasion of the Spring Festival, my sincere wish that you and the families of the staff in the new year, good health, happy, happyWe will continue to improve the company's internal control system, and steady improvement in ability to manage and control, optimize business processes, to ensure smooth processes, responsibilities in place; to further strengthen internal controls, play a control post independent oversight role of evaluation complying with third-party responsibility; to actively make use of internal audit tools detect potential management, streamline, standardize related transactions, strengthening operations in accordance with law. Deepening the information management to ensure full communication \"zero resistance\". o constantly perfect ERP, and BFS++, and PI, and MIS, and SCM, information system based construction, full integration information system, achieved information resources shared; to expand Portal system application of breadth and depth, play information system on enterprise of Assistant role; to perfect daily run maintenance operation of records, promote problem reasons analysis and system handover; to strengthening BFS++, and ERP, and SCM, technology application of training, improve employees application information system of capacity and level. Humanistic care to ensure \"zero.\" To strengthening Humanities care, continues to foster company wind clear, and gas are, and heart Shun of culture atmosphere; strengthening love helped trapped, care difficult employees; carried out style activities, rich employees life; strengthening health and labour protection, organization career health medical, control career against; continues to implementation psychological warning prevention system, training employees health of character, and stable of mood and enterprising of attitude, created friendly fraternity of Humanities environment. To strengthen risk management, ensure that the business of \"zero risk\". To strengthened business plans management, will business business plans cover to all level, ensure the business can control in control; to close concern financial, and coal electric linkage, and energy-saving scheduling, national policy trends, strengthening track, active should; to implementation State-owned assets method, further specification business financial management; to perfect risk tube control system, achieved risk recognition, and measure, and assessment, and report, and control feedback of closed ring management, improve risk prevention capacity. o further standardize trading, and strive to achieve \"according to law, standardize and fair.\" Innovation of performance management, to ensure that potential employees \"zero fly\". o strengthen performance management, process control, enhance employee evaluation and levels of effective communication to improve performance management. To further quantify and refine employee standards ... Work, full play party, and branch, and members in \"five type Enterprise\" construction in the of core role, and fighting fortress role and pioneer model role; to continues to strengthening \"four good\" leadership construction, full play levels cadres in enterprise development in the⑶、压桩中发现下列情况之一时，应立即停止压桩,经有关单位协商后处理:
①、压桩过程中压力剧变；
②、桩身突然发生倾斜、移位或严重回弹； ③、桩身或桩顶出现严重裂纹或破碎；
④、因挤土效应产生报警，总包、监理工程师通知停工。 5、中间验收与竣工验收
⑴、按国家GB50202-2002规范要求，施工时对每根桩都应进行中间验收，由甲方或监理方、总包方与我方共同进行。中间验收的内容包括：PHC管桩的质量及外观尺寸、插桩的倾斜度、节点处理、桩位移、桩顶标高和终止压力等。
⑵、做好中间验收的同时，在以下几方面应跟踪检查：对中的桩位复查、送桩完毕检查实际标高。
⑶、竣工验收在基坑开挖、垫层浇筑好以后由建设单位组织进行，我方主要实测桩顶标高及桩位偏差，绘制桩位竣工图，提交竣工资料。
6、见质量问题（事故）的预防和处理常见问题的预防与处理 ⑴、预制混凝土桩身断裂，沉桩时突然错位或桩身出现裂缝
①、原因分析：桩身强度达不到设计要求；桩身制作弯曲或桩身长细比过大；遇地下障碍物；上下节桩接桩不在同一轴线上；主钢筋触及桩顶，压入时产生纵向裂缝等。
②、防治措施：清除浅层地下坚硬障碍物；制桩、养护应符合强度、平直度要求；接桩面平整，使上下节在同一轴线上；沉桩倾斜时，不能用移动桩架来校正等。
⑵、PHC管桩沉桩达不到设计标高要求
①、原因分析：勘察资料与实际土层情况不符；群桩施工时，后沉的桩因挤土造成沉桩困难等。
②、防治措施：探明地质条件，试沉桩发现异常时应作补勘；合理选择施工方法、施工顺序和机械设备；减少接桩时间，做到沉桩基本连续进行。
③、压桩过程中，发生压力超过单桩极限承载力，但桩顶标高达不到设计要求；出现这一情况应立即通知设计及现场监理，共同确定处理意见.
f backbone backbone role; to full strengthening members youth work, full play youth employees in company development in the of force role; to improve independent Commission against corruption work level, strengthening on enterprise business key link of effectiveness monitored. , And maintain stability. To further strengthen publicity and education, improve the overall legal system. We must strengthen safety management, establish and improve the education, supervision, and evaluation as one of the traffic safety management mechanism. o conscientiously sum up the Olympic security controls, promoting integrated management to a higher level, higher standards, a higher level of development. Employees, today is lunar calendar on December 24, the ox Bell is about to ring, at this time of year, we clearly feel the pulse of the XX power generation company to flourish, to more clearly hear XX power generation companies mature and symmetry breathing. Recalling past one
another across a railing, we are enthusiastic and full of confidence. Future development opportunities, we more exciting fight more spirited. Employees, let us together across 2013 full of challenges and opportunities, to create a green, low-cost operation, full of humane care of a world-class power generation company and work hard! The occasion of the Spring Festival, my sincere wish that you and the families of the staff in the new year, good health, happy, happy10
We will continue to improve the company's internal control system, and steady improvement in ability to manage and control, optimize business processes, to ensure smooth processes, responsibilities in place; to further strengthen internal controls, play a control post independent oversight role of evaluation complying with third-party responsibility; to actively make use of internal audit tools detect potential management, streamline, standardize related transactions, strengthening operations in accordance with law. Deepening the information management to ensure full communication \"zero resistance\". o constantly perfect ERP, and BFS++, and PI, and MIS, and SCM, information system based construction, full integration information system, achieved information resources shared; to expand Portal system application of breadth and depth, play information system on enterprise of Assistant role; to perfect daily run maintenance operation of records, promote problem reasons analysis and system handover; to strengthening BFS++, and ERP, and SCM, technology application of training, improve employees application information system of capacity and level. Humanistic care to ensure \"zero.\" To strengthening Humanities care, continues to foster company wind clear, and gas are, and heart Shun of culture atmosphere; strengthening love helped trapped, care difficult employees; carried out style activities, rich employees life; strengthening health and labour protection, organization career health medical, control career against; continues to implementation psychological warning prevention system, training employees health of character, and stable of mood and enterprising of attitude, created friendly fraternity of Humanities environment. To strengthen risk management, ensure that the business of \"zero risk\". To strengthened business plans management, will business business plans cover to all level, ensure the business can control in control; to close concern financial, and coal electric linkage, and energy-saving scheduling, national policy trends, strengthening track, active should; to implementation State-owned assets method, further specification business financial management; to perfect risk tube control system, achieved risk recognition, and measure, and assessment, and report, and control feedback of closed ring management, improve risk prevention capacity. o further standardize trading, and strive to achieve \"according to law, standardize and fair.\" Innovation of performance management, to ensure that potential employees \"zero fly\". o strengthen performance management, process control, enhance employee evaluation and levels of effective communication to improve performance management. To further quantify and refine employee standards ... Work, full play party, and branch, and members in \"five type Enterprise\" construction in the of core role, and fighting fortress role and pioneer model role; to continues to strengthening \"four good\" leadership construction, full play levels cadres in enterprise development in the⑶、PHC管桩桩身倾斜，偏离设计桩位
①、原因分析：场地不平整，桩架不水平；插桩时偏斜，未到位，不垂力，使已压桩产生位移；桩顶桩帽接触面不平，桩身受偏心荷载作用，压桩后桩身倾斜等。
②、防治措施：应规范作业，做到场地平整，桩架要平直，桩位对中，控制钻孔垂直度，上下节接桩保证在同一轴线上，检查桩顶与桩帽接触面，保证平整，压桩期间不宜同步开挖机坑。 ⑷、PHC管桩压入时，接桩处松脱开裂
①、原因分析：两节桩连接处表面未清理干净；焊接质量不好。 ②、防治措施：接桩前将接桩处表面杂质、油污清洗干净，焊接牢固。 ⑸、桩涌起
①、原因分析：遇流砂或软土。
②、防治措施：将浮起量大的重新压入，静荷载试验，不符合要求的进行复压或重压。
7、压桩施工对环境影响及其防治措施
原因分析：在不敏感的饱和软粘土地基中沉桩时，由于土的不排水抗剪强度很低，具有弱渗透性和不排水时压缩性低的特点，桩沉入地基后桩周土体受到强扰动，主要表现为径向位移，桩尖和桩周一定范围内和土体受到不排水剪切以及很大的水平挤压，桩周土体接近于“非压缩性”，并产生较大的剪切变形，此时地基扰动重塑土的体积基本上不会产生变化。土体颗粒间孔隙内的自由水被挤压而形成较大的超静孔隙水压力U,从而降低了土不排水抗剪强度,促使桩周邻近土体因不排水剪切而破坏,与桩体积等量的土体在沉桩过程中向桩周发生较大的侧向位移和隆起。由于孔隙水同四周消散及地基土体低压缩性的影响，以及群桩施工中的叠加因素，进一步扩大位移和隆起的影响范围，这也会使已打入的邻桩和邻近建筑物产生侧向位移和上浮。
在敏感粘性土中沉桩时，土体受扰动的特征不同于不敏感的饱和软粘土，因为沉桩时对地基土的扰动会使地下水位以上的桩周敏感粘土液化，液化土被挤到桩周地表上，相应减少了桩周土体的侧向位移，也减少了桩周范围外地表土的隆起，且沉桩将促使敏感粘土产生重新固结，从而减少地基土体的隆起，其隆起量也往往小于桩的入土体积。
主要预防措施有：
f backbone backbone role; to full strengthening members youth work, full play youth employees in company development in the of force role; to improve independent Commission against corruption work level, strengthening on enterprise business key link of effectiveness monitored. , And maintain stability. o further strengthen publicity and education, improve the overall legal system. We must strengthen safety management, establish and improve the education, supervision, and evaluation as one of the traffic safety management mechanism. o conscientiously sum up the Olympic security controls, promoting integrated management to a higher level, higher standards, a higher level of development. Employees, today is lunar calendar on December 24, the ox Bell is about to ring, at this time of year, we clearly feel the pulse of the XX power generation company to flourish, to more clearly hear XX power generation companies mature and symmetry breathing. Recalling past one another across a railing, we are enthusiastic and full of confidence. Future development opportunities, we more exciting fight more spirited. Employees, let us together across 2013 full of challenges and opportunities, to create a green, low-cost operation, full of humane care of a world-class power generation company and work hard! The occasion of the Spring Festival, my sincere wish that you and the families of the staff in the new year, good health, happy, happyWe will continue to improve the company's internal control system, and steady improvement in ability to manage and control, optimize business processes, to ensure smooth processes, responsibilities in place; to further strengthen internal controls, play a control post independent oversight role of evaluation complying with third-party responsibility; to actively make use of internal audit tools detect potential management, streamline, standardize related transactions, strengthening operations in accordance with law. Deepening the information management to ensure full communication \"zero resistance\". o constantly perfect ERP, and BFS++, and PI, and MIS, and SCM, information system based construction, full integration information system, achieved information resources shared; to expand Portal system application of breadth and depth, play information system on enterprise of Assistant role; to perfect daily run maintenance operation of records, promote problem reasons analysis and system handover; to strengthening BFS++, and ERP, and SCM, technology application of training, improve employees application information system of capacity and level. Humanistic care to ensure \"zero.\" To strengthening Humanities care, continues to foster company wind clear, and gas are, and heart Shun of culture atmosphere; strengthening love helped trapped, care difficult employees; carried out style activities, rich employees life; strengthening health and labour protection, organization career health medical, control career against; continues to implementation psychological warning prevention system, training employees health of character, and stable of mood and enterprising of attitude, created friendly fraternity of Humanities environment. To strengthen risk management, ensure that the business of \"zero risk\". To strengthened business plans management, will business business plans cover to all level, ensure the business can control in control; to close concern financial, and coal electric linkage, and energy-saving scheduling, national policy trends, strengthening track, active should; to implementation State-owned assets method, further specification business financial management; to perfect risk tube control system, achieved risk recognition, and measure, and assessment, and report, and control feedback of closed ring management, improve risk prevention capacity. o further standardize trading, and strive to achieve \"according to law, standardize and fair.\" Innovation of performance management, to ensure that potential employees \"zero fly\". o strengthen performance management, process control, enhance employee evaluation and levels of effective communication to improve performance management. To further quantify and refine employee standards ... Work, full play party, and branch, and members in \"five type Enterprise\" construction in the of core role, and fighting fortress role and pioneer model role; to continues to strengthening \"four good\" leadership construction, full play levels cadres in enterprise development in the⑴、在施工区周围一定范围内开挖防挤沟，减少挤土效应。 ⑵、在沉桩位置进行预钻孔取土，减少桩的挤土效应。
⑶、必要时，在管线及建筑物旁钻孔掏土并回填砂：离轴线外边线2m沿线设置排水砂井及掏土孔，孔深为10m，孔径Φ300mm，每0.8~1.6m布置一个孔。
⑷、严格控制沉桩速度，开始压边桩时每天沉桩数不宜过多，以减少挤土效应保护周围建筑物及管线的安全。
f backbone backbone role; to full strengthening members youth work, full play youth employees in company development in the of force role; to improve independent Commission against corruption work level, strengthening on enterprise business key link of effectiveness monitored. , And maintain stability. To further strengthen publicity and education, improve the overall legal system. We must strengthen safety management, establish a
another across a railing, we are enthusiastic and full of confidence. Future development opportunities, we more exciting fight more spirited. Employees, let us together across 2013 full of challenges and opportunities, to create a green, low-cost operation, full of humane care of a world-class power generation company and work hard! The occasion of the Spring Festival, my sincere wish that you and the families of the staff in the new year, gsion, and evaluation as one of the traffic safety management mechanism. o conscientiously sum up the Olympic security controls, promoting integrated management to a higher level, higher standards, a higher level of development. Employees, today is lunar calendar on December 24, the ox Bell is about to ring, at this time of year, we clearly feel the pulse of the XX power generation company to flourish, to more clearly hear XX power generation companies mature and symmetry breathing. Recalling past one ppy12
nd improve the education, superviood health, happy, ha
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