泵站主体深基坑开挖施工方案.pdf

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1、______________________________________________________________________________________________________________响螺湾合建泵站泵站主体深基坑开挖施工方案目录目录一、工程概况：.............................................................................................................................................

2、...............21、工程简介：.....................................................................................................................................................22、水文、地质......................................................................................................

3、...............................................2二、施工方案：............................................................................................................................................................51、施工思路：...............................................................

4、......................................................................................52、施工工艺流程：............................................................................................................................................53、施工工艺或施工方法：.................................

5、.............................................................................................61）施工准备：............................................................................................................................................62）外圈大口井施工及降水：...........................

6、.....................................................................................63）潜层5m土体的卸载（第一次卸载）..........................................................................................64）内圈大口井施工及降水、泵站主体支护砼灌注桩施工.........................................................85）冠梁

7、施工................................................................................................................................................96）泵站进水管道支护钢板桩施工.......................................................................................................97）支护内土体卸载至-6.8m（

8、第二次卸载）：...................