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目 录
1.工程概况.................................................................................................................................................2
2.土方开挖方法.........................................................................................................................................3
2.1施工准备...............................................................................................................................................3
2.1.1.学习和审查图纸...............................................................................................................3
2.1.2.查勘施工现场...................................................................................................................3
2.1.3.编制施工方案...................................................................................................................4
2.1.4.平整施工场地...................................................................................................................4
2.1.5.去除现场障碍物...............................................................................................................4
2.1.6.进展地下墓探...................................................................................................................4
2.1.7.做好排水降水设施...........................................................................................................4
2.1.8.设置测量控制网...............................................................................................................4
2.1.9.修建临时设施及道路........................................................................................................5
2.1.10.准备机具、物资及人员..................................................................................................5
2.1.11.现场准备.........................................................................................................................6
2.2开挖的一般要求...................................................................................................................................6
2.2.1.边坡要求...........................................................................................................................6
2.2.2.放坡要求...........................................................................................................................6
2.2.3.基坑开挖要求...................................................................................................................7
2.3.基坑土方开挖......................................................................................................................................8
2.3.1.施工工艺流程...................................................................................................................8
2.3.2.地库区域测放边坡及开挖灰线........................................................................................8
2.3.3.机械开挖方法...................................................................................................................8
2.3.4.机械施工要点.................................................................................................................10
3.土方开挖施工考前须知........................................................................................................................11
4.土方开挖施工质量控制要点...............................................................................................................12
4.1.对定位放线的控制............................................................................................................................12
4.2.对土方开挖的控制............................................................................................................................12
4.3.基坑〔槽〕验收................................................................................................................................13
4.4.土方开挖质量检验标准....................................................................................................................13
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