巴马瑶族自治县棚户区改造项目（政府大院地块）10#楼及地下车库工程土方开挖及基坑支护安全专项施工方案中国二十冶集团有限公司巴马瑶族自治县棚户区改造工程项目经理部2017年7月12日目录1工程概况..................................................................................................................................-1-1.1参建单位.......................................................................................................................-1-1.2工程环境.......................................................................................................................-1-1.3工程地质及水文概况...................................................................................................-2-1.4基坑支护描述...............................................................................................................-3-1.5施工要求和技术保证条件...........................................................................................-8-1.6基坑安全等级为二级，专家楼处为一级.................................................................-10-2编制依据................................................................................................................................-11-3施工准备................................................................................................................................-11-3.1施工组织机构.............................................................................................................-11-3.2各项目标.....................................................................................................................-12-3.3施工现场平面布置.....................................................................................................-13-3.4施工挖、运土机械配备.............................................................................................-14-3.5测量仪器.....................................................................................................................-14-3.6劳动力计划.................................................................................................................-14-4总体施工流程........................................................................................................................-14-4.1支护桩施工流程.........................................................................................................-14-4.2基坑支护及土方开挖施工流程.................................................................................-15-4.3施工方案.....................................................................................................................-16-4.4冠梁施工.....................................................................................................................-20-4.5钢筋工程.....................................................................................................................-21-4.6冠梁模板工程.............................................................................................................-21-4.7混凝土工程.................................................................................................................-22-4.8喷浆挂网施工方案及技术措施.................................................................................-22-4.9锚索及腰梁....................................................................
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