15标围护方案Word文档下载推荐.docx
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1.1编制主要依据.................................................................................................................1
1.2其他参考文件.................................................................................................................1
2、工程概况..............................................................................................................................2
2.1工程概述.........................................................................................................................2
2.2主要工程内容.................................................................................................................2
2.3地理位置和项目环境......................................................................................................4
3、设计概况..............................................................................................................................5
3.1基坑围护设计概况..........................................................................................................5
4、工程目标..............................................................................................................................8
第二章施工总体部署......................................................................................................................9
第三章本工程特点、重点、难点及对策措施............................................................................10
1、基坑开挖难度大、安全风险高、工期紧任务重............................................................10
1.1基坑开挖涉及土层分析................................................................................................10
1.2基坑工程应控制风险点................................................................................................10
第四章施工技术............................................................................................................................12
1、施工测量............................................................................................................................12
1.1测量规范.......................................................................................................................12
1.2测量方法.......................................................................................................................12
1.3注意事项.......................................................................................................................13
2、基坑围护施工方案............................................................................................................13
2.1钻孔灌注桩施工...........................................................................................................13
2.2五轴水泥土搅拌桩施工................................................................................................19
2.3内插型钢水泥土搅拌墙施工........................................................................................22
2.4压密注浆地基加固施工................................................................................................25
2.5基坑支撑施工及拆除方案............................................................................................26
2.6应急措施.......................................................................................................................29
2.7双液注浆施工...............................................................................................................30
第五章质量、安全、文明施工及环境保护措施、创优计划....................................................31
1、质量保证措施和创优计划................................................................................................31
1.1质量管理措施...............................................................................................................31
1.2地基加固质量保证措施................................................................................................32
1.3水泥土搅拌墙冷缝等特殊情况处理............................................................................32
1.4五轴水泥土搅拌桩施工................................................................................................33
1.5格构柱定位、固定与吊装............................................................................................33
第六章施工进度计划及工期保证措施........................................................................................36
1、施工进度计划安排............................................................................................................36
1.1总进度计划编制指导思想............................................................................................36
1.2施工进度计划...............................................................................................................36
2、确保工期的技术保证措施...........................