PAGE\*MERGEFORMAT43河南第一纺织有限公司10万锭纺纱生产线建设项目动力站基坑降水支护方案编制：审核：中宇建设集团股份有限公司二○一五年九月目录TOC\o"1-3"\h\z\uHYPERLINK\l"_Toc432958918"第1章编制原则与依据PAGEREF_Toc432958918\h3HYPERLINK\l"_Toc432958919"1.1编制原则PAGEREF_Toc432958919\h3HYPERLINK\l"_Toc432958920"1.2编制依据PAGEREF_Toc432958920\h3HYPERLINK\l"_Toc432958921"第2章工程概况PAGEREF_Toc432958921\h3HYPERLINK\l"_Toc432958922"2.1工程概况PAGEREF_Toc432958922\h3HYPERLINK\l"_Toc432958923"2.2工程地质资料PAGEREF_Toc432958923\h4HYPERLINK\l"_Toc432958924"1、地形地貌PAGEREF_Toc432958924\h4HYPERLINK\l"_Toc432958925"2、地层岩性PAGEREF_Toc432958925\h4HYPERLINK\l"_Toc432958926"3、水文地质条件PAGEREF_Toc432958926\h4HYPERLINK\l"_Toc432958928"2.3基坑特点PAGEREF_Toc432958928\h5HYPERLINK\l"_Toc432958929"第3章管理目标PAGEREF_Toc432958929\h5HYPERLINK\l"_Toc432958930"3.1质量目标PAGEREF_Toc432958930\h5HYPERLINK\l"_Toc432958931"3.2安全文明PAGEREF_Toc432958931\h5HYPERLINK\l"_Toc432958932"第4章基坑支护及降水设计方案PAGEREF_Toc432958932\h5HYPERLINK\l"_Toc432958933"4.1基坑支护型式选择与设计PAGEREF_Toc432958933\h5HYPERLINK\l"_Toc432958934"4.2土钉墙支护工艺设计及总说明PAGEREF_Toc432958934\h6HYPERLINK\l"_Toc432958935"4.3基坑土钉墙支护计算书PAGEREF_Toc432958935\h7HYPERLINK\l"_Toc432958936"4.4降水设计方案考虑的特征重点：PAGEREF_Toc432958936\h13HYPERLINK\l"_Toc432958937"4.5降水计算及现场布置PAGEREF_Toc432958937\h13HYPERLINK\l"_Toc432958938"第5章施工方案PAGEREF_Toc432958938\h15HYPERLINK\l"_Toc432958939"5.1测量PAGEREF_Toc432958939\h15HYPERLINK\l"_Toc432958940"5.2基坑降水方案PAGEREF_Toc432958940\h16HYPERLINK\l"_Toc432958941"5.2.1施工准备PAGEREF_Toc432958941\h16HYPERLINK\l"_Toc432958942"5.2.2排水系统PAGEREF_Toc432958942\h16HYPERLINK\l"_Toc432958943"5.2.3供电系统PAGEREF_Toc432958943\h16HYPERLINK\l"_Toc432958944"5.2.4施工工艺流程PAGEREF_Toc432958944\h16HYPERLINK\l"_Toc432958945"5.2.5施工工序PAGEREF_Toc432958945\h16HYPERLINK\l"_Toc432958946"5.2.6抽降及维护PAGEREF_Toc432958946\h18