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南翔镇，众仁路以西，武威路以北地块（16-05）商办项目工程(基坑降水方案) 目 录 第一章 工程概况 ..................................................... 1 一、工程简介 .......................................................................................................................................... 1 二、地下地质条件 .................................................................................................................................. 1 三、水文地质条件 .................................................................................................................................. 3 第二章 降水方案设计要点 ............................................. 3 一、目的 .................................................................................................................................................. 3 二、设计依据 .......................................................................................................................................... 3 三、降水施工难点分析 .......................................................................................................................... 4 四、降水施工对策 .................................................................................................................................. 4 五、注意事项 .......................................................................................................................................... 4 第三章 降水井设计 ................................................... 4 一、抗浮井分析计算 .............................................................................................................................. 4 二、井点布置 .......................................................................................................................................... 5 三、降水井构造与设计要求 .................................................................................................................. ...