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基坑支护施工组织设计-1.doc

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基坑 支护 施工组织设计
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基坑支护施工组织设计实例编制人:×××审核人:×××审批人:×××××建筑技术总公司第一部分、编制依据 ........................................................................................................................7一、本方案的设计、编制依据 ....................................................................................................7二、本方案编制主要引用的规范及标准 ....................................................................................8第二部分、总论 ................................................................................................................................9一、工程概况 ................................................................................................................................91.工程地理位置及建设概况 .....................................................................................................92.本工程主要估算工程量 .........................................................................................................93.工程地质概况 .........................................................................................................................94.水文地质概况 .......................................................................................................................13二、工程内容概述 ......................................................................................................................131.本次投标所含工程内容 .......................................................................................................132.完成投标内容所必需的其他施工内容 ...............................................................................13第三部分、方案设计概述 ..............................................................................................................14一、本工程主要特点、技术难点和应对措施 ..........................................................................141.本工程主要特点 ...................................................................................................................142.工程技术难点和要点 ...........................................................................................................143.应对措施及解决方案 ...........................................................................................................15二、基坑降水方案设计 ..............................................................................................................161.设计条件 ...............................................................................................................................162.基坑降水方案设计 ...............................................................................................................163.降水井保护措施 ...................................................................................................................184.地下水资源再利用 ...............................................................................................................185.基坑周边设施的安全与防护 ...............................................................................................19三、基坑护坡方案设计 ..............................................................................................................191.设计条件 ...............................................................................................................................192.基坑周边边坡支护设计 .......................................................................................................193.基坑周边地下设施及古树的保护 .......................................................................................234.基坑支护设计总则 ...............................................................................................................245.桩间土支护设计 ...................................................................................................................24四、基坑土方开挖方案设计 ......................................................................................................251.基坑土方施工步骤 ...............................................................................................................252.基坑土方道路设计 ...............................................................................................................263.土方作业设计 .......................................................................................................................264.地下障碍物处理 ...................................................................................................................275.平均日出土量的设计参数 ...................................................................................................286.夜间土方车辆疏散措施 .......................................................................................................287.场内道路、基坑内道路和坡道的形成 ...............................................................................288.雨后及挖运黏性土的土方施工 ...........................................................................................299.坡道残余土方的处理 ...........................................................................................................29五、基坑位移观测方案设计 ......................................................................................................301.基坑观测目的 .......................................................................................................................302.基坑监测内容 .......................................................................................................................303.监测标准及监测仪器 ...........................................................................................................304.监测点的布置 .......................................................................................................................31六、监测基本方法 ......................................................................................................................311.坡顶水平位移监测 ...............................................................................................................312.沉降观测 ...............................................................................................................................313.水位监测 ...............................................................................................................................324.监测周期及报告 ...................................................................................................................325.通过监测建立预警系统 .......................................................................................................33七、主要工程量统计 ..................................................................................................................331.临时设施 ...............................................................................................................................332.基坑土方 ...............................................................................................................................333.基坑降水 ...............................................................................................................................344.基坑边坡支护(护坡桩) ...................................................................................................355.基坑边坡支护(预应力锚杆) ...........................................................................................366.喷锚土钉墙 ...........................................................................................................................37第四部分、施工总体计划部署 ......................................................................................................38一、施工部署 ..............................................................................................................................381.各工序作业的投入时机的安排及施工总体部署 ...............................................................382、塔吊设置方案 ..................................................................................................................40二、施工总平面布置 ..................................................................................................................411.施工总平面布置原则 ...........................................................................................................412.施工总平面具体布置 ...........................................................................................................41第五部分、施工组织设计 ..............................................................................................................42一、临时设施 ..............................................................................................................................421.场地内施工道路设施 ...........................................................................................................422.临建设施及办公场所 ...........................................................................................................423.施工机械、材料堆放 ...........................................................................................................434.施工人员食、住所安排 .......................................................................................................435.临时用水、用电设施 ...........................................................................................................436.消防设施规划 .......................................................................................................................447.施工人员、设备的退场 .......................................................................................................44二、前期准备 ..............................................................................................................................441.施工准备 ...............................................................................................................................442.施工测量与保护 ...................................................................................................................453.施工人员、设备进场 ...........................................................................................................474.施工设备进场 .......................................................................................................................47三、施工组织 ..............................................................................................................................471.项目经理部 ...........................................................................................................................472.施工组织 ...............................................................................................................................50四、施工管理 ..............................................................................................................................501.工程项目目标 .......................................................................................................................502.项目管理 ...............................................................................................................................513.项目管理体系 .......................................................................................................................524.主要管理措施 .......................................................................................................................525.项目部提供条件 ...................................................................................................................536.项目管理制度 .......................................................................................................................547.本工程项目管理工作特点及工作重点 ...............................................................................55五、施工计划 ..............................................................................................................................561.施工设备计划 .......................................................................................................................562.施工人员计划 .......................................................................................................................573.主要材料供应计划 ...............................................................................................................584.材料检验计划 .......................................................................................................................585.施工用水、用电计划 ...........................................................................................................596.施工进度计划 .......................................................................................................................61六、施工技术 ..............................................................................................................................611.施工工艺 ...................................................................................................................................612.施工技术措施 .......................................................................................................................68八、工期保证措施 ......................................................................................................................771.工期目标 ...............................................................................................................................772.阶段性工期目标 ...................................................................................................................773.工期保证措施 .......................................................................................................................774.冬、雨期施工措施 ...............................................................................................................79九、降低成本措施 ......................................................................................................................801.降低成本目标 .......................................................................................................................802.降低成本措施 .......................................................................................................................81十、意外突发现象的应急预案 ..................................................................................................821.预防降水可能引起的地面沉降的措施 ...............................................................................822.基坑支护异常情况的处理 ...................................................................................................82第六部分、对周边环境的保护措施 ..............................................................................................84一、对周边环境的污染防治 ......................................................................................................841.对现场周边环境的摸底和了解 ...........................................................................................842.对周边环境的保护措施 .......................................................................................................84二、对周边建筑、树木的保护 ..................................................................................................84三、防止扰民及民扰措施 ..........................................................................................................84四、与各管理部门的工作协调 ..................................................................................................85第七部分、施工质量管理 ..............................................................................................................87一、施工质量计划目标 ..............................................................................................................87二、施工质量保证措施 ..............................................................................................................871.质量创优管理体系 ..................................................................................
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