目录1、编制依据.........................................................12、编制原则.........................................................23、项目概况.........................................................33.1项目概况....................................................33.2工程地质、水文条件..........................................33.3周边环境情况................................................53.4围护结构设计概况............................................63.5主要工程数量................................................93.6施工总平面布置..............................................94、施工管理总体筹划.................................................94.1总体目标...................................................104.1.1工期目标.............................................104.1.2质量目标.............................................104.1.3安全生产目标.........................................104.1.4文明施工目标.........................................104.1.5环境保护目标.........................................104.2施工安排和主要劳动力、材料、设备使用计划...................114.2.1工期计划.............................................114.2.2材料供应计划.........................................114.2.3主要机械设备配备计划.................................115、降水施工........................................................125.1降水原因和目的.............................................135.1.1降水原因.............................................135.1.2降水目的.............................................135.2降水方案设计...............................................135.2.1基坑降水方法选择.....................................135.2.2管井降水.............................................135.2.3基坑外给排水及坑内集水明排...........................135.3降水井施工技术要求.........................................145.3.1降水井结构参数......................................155.3.2基坑涌水量...........................................155.3.3降水井数量计算......................................165.3.4水泵选择.............................................175.3.5受降水漏斗影响高差计算..............................175.4基坑外排水及坑内集水明排...................................185.4.2基坑内集水明排......................................185.5降水井施工工序.............................................195.5.1成孔.................................................205.5.2清孔.................................................205.5.3下井管...............................................215.5.4填滤料...............................................215.5.5洗井.................................................215.5.6安装潜水泵及管路系统.................................215.5.7试抽.................................................215.6降水井施工技术保证措施.....................................215.6.1井位要求.............................................215.6.2井身结构误差要求.....................................225.6.3填料要求.............................................225.6.4洗井要求.............................................225.6.5抽水要求.............................................225.7降水配电系统设计...........................................225.9降水管理...................................................235.9降水监测...................................................245.9.1水位观测...........................
