无排水砂层真空预压法施工方案32p

目 录 TOC \o "1-3" \h \z \u HYPERLINK \l "_Toc249149663" 1 工程概况 PAGEREF _Toc249149663 \h 4 HYPERLIN

目录 1 ...................................................................................................................... 4 工程概况 2 ...................................................................................................................... 4 自然条件 2.1 ................................................................................................ 4 工程地质条件 2.2 ................................................................................................ 5 水文地质条件 3 .................................................................................................... 6 编制依据及执行规范 4 ............................................................................................................... 6 总体技术要求 4.1 ......................................................................................... 6 软基处理质量标准 4.2 ........................................................................................................ 6 工期要求 5 ........................................................................................................ 7 软基处理方案总述 6 ...................................................................................... 8 软基处理主要施工工艺及要点 6.1 .................................................................................................... 8 排水板施工 6.1.1 ................................................................................................ 8 材料选择 6.1.2 ................................................................................................ 8 施工机械 6.1.3 ................................................................................................ 9 桩位布置 6.1.4 .............................................................................................. 10 施工工艺 6.1.5 .............................................................................................. 10 施工要求 6.2 .................................................................................................. 11 密封墙施工 6.2.1 ............................................................................................... 11 挖压膜沟 6.2.2 .................................................................................... 11 打设泥浆搅拌墙 6.3 ...................................................................................................... 13 挖隔离沟 6.4 .................................................................................... 13 真空管的布置与施工 6.4.1 .................................................................................... 13 真空管材料要求 6.4.2 .............................................................................................. 13 施工要求 6.5 ...................................................................................................... 13 填土施工 6.6 ...................................................................................................... 13 铺密封膜 6.7 .................................................................................................. 14 安装真空泵 6.8 .................................................................................................. 14 抽真空作业 6.9 ...................................................................................................... 14 填土堆载 7 ............................................................................................................. 14 施工过程监测 7.1 ........................................................................................... 14 膜下真空度观测 7.1.1 .............................................................................................. 14 观测目的 7.1.2 .............................................................................................. 14 量测仪器 7.1.3 .............................................................................................. 15 布点方法 7.1.4 .............................................................................................. 15 观测频率 7.1.5 .................................................................................... 15 资料的整理提交 7.2 .............................................................................................. 15 表层沉降观测 7.2.1 .............................................................................................. 15 观测目的 7.2.2 .............................................................................................. 15 测量仪器 7.2.3 ....................................................................................... 15 沉降标的制作 7.2.4 .............................................................................................. 15 布设方法 7.2.5 ............................................................................ 15 测量方法及观测频率