三山风景名胜区旅游服务基地项目海洋世界馆基坑支护、降水、土方工程专项施工方案编制人：审核人：审批人：编制单位：编制日期：目录第一章编制依据与编制说明...........................................3一、编制依据................................................................3二、编制说明................................................................3第二章工程概述.....................................................4一、整体工程概况............................................................4二、土方开挖工程概况........................................................5三、参建单位................................................................6四．施工条件................................................................6第三章工程地质条件.................................................6一、工程地质状况............................................................6二、水文地质状况............................................................9第四章土方工程特点、重点和难点.....................................9一、工程特点................................................................9一、工程施工的重点.........................................................10二、工程施工的难点.........................................................11第五章施工总体部署................................................12一、施工分析及施工段划分...................................................12二、总体支护、开挖和排水方案...............................................12三、施工部署...............................................................13四、项目经理部人员配置.....................................................14五、施工人员及主要机械配备.................................................15第六章基坑支护方案................................................18一、三轴深搅桩施工方案.....................................................19二、支护钻孔灌注桩施工方案.................................................36三、自然放坡+挂网喷浆护坡施工方案..........................................51四、局部深坑支护措施.......................................................52第七章基坑降、排水方案............................................53一、降、排水施工要求：.....................................................53二、管井降水施工方案.......................................................54三、坡底及坑内排水.........................................................56四、坡顶排水...............................................................57五、注意事项...............................................................58六、加深部位降水采取措施...................................................58七、降水设施的拆除和封堵时间安排及具体措施.................................59第八章土方开挖方案................................................59一、施工准备工作...........................................................59二、土方开挖施工...........................................................61第九章施工进度计划................................................64第十章工程质量保证措施............................................64一、组织措施...............................................................65二、技术措施...............................................................65三、材料保证措施...........................................................66四、设备保证措施.................................................
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