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降水设计与施工方案当代东戴河•白金海ΜΟΜΛ项目二期基坑降水施工方案编写：审核：审批：中国兵器工业北方勘察设计研究院有限公司绥中分公司2016年12月目录一.编制依据....................................................................41.1甲方提供的资料............................................................41降水设计与施工方案1.2主要规程规范..............................................................41.3主要标准..................................................................51.4其它......................................................................5二.工程概述....................................................................52.1工程概况..................................................................52.2自然地理环境..............................................................62.2.1场区自然地理位置........................................................62.2.2气象条件................................................................72.2.3区域地质构造............................................................72.2.4地形、地貌..............................................................82.3场区岩土工程地质条件......................................................82.4拟建场区地下水条件........................................................92.5地下水腐蚀性评价.........................................................102.6场地的建筑抗震设计基本条件...............................................102.7建筑抗震地段类别划分.....................................................10三.基坑降排水设计.............................................................113.1基槽降排水设计的目的及原则..............................................113.2地下水基本情况..........................................................113.3降水要求................................................................113.4降水方案的选择..........................................................123.5降水方案的设计..........................................................123.6降水井的布置............................................................133.7降水井的构造............................................................143.8明沟排水................................................................143.9降水井周边排水的做法....................................................143.10地下水的重复利用.......................................................153.11降水井的施工...........................................................153.12疏干井施工工艺流程.....................................................173.13降水施工的质量要求.....................................................173.14降水施工应急措施.......................................................18四.施工部署及工期安排.........................................................234.1总体施工顺序.............................................................234.2我公司承诺工程管理目标（含质量、工期与安全文明）.........................234.3项目施工组织机构.........................................................23五.专项施工方案...............................................................235.1施工准备.................................................................23六.雨季施工方案..............................................................246.1雨季施工总体原则.........................................................246.2应急工作部署..................................