土方开挖施工方案 (基坑边坡土钉墙支护).pdf

土方开挖施工方案(基坑边坡土钉墙支护)

土方开挖施工方案
(基坑边坡土钉墙支护)

土方开挖施工方案(基坑边坡土钉墙支护)
目录

一、编制依据..................................................................................................................1
1.1相关图纸资料....................................................................................................1
1.2相关技术标准....................................................................................................1
二、工程概况..................................................................................................................1
三、工程周边情况..........................................................................................................2
3.1基坑周边环境条件............................................................................................2
3.2基坑使用条件....................................................................................................2
四、工程地质条件..........................................................................................................4
4.1工程地层条件....................................................................................................4
4.2气象.....................................................................................................................6
4.3水文............................................................................................................6
五、支护结构、土方开挖及地下水控制施工要点......................................................6
5.1支护结构施工要点............................................................................................6
5.1.1土钉墙施工工艺....................................................................................6
5.1.2施工控制要点.........................................................................................8
5.1.3土方开挖施工要点.......................................................................................11
5.1.4地下水控制措施与施工要点......................................................................11

a、地下水控制措施...........................................................................