天津滨海新区SMW工法围护结构基坑安全监测分析  

Analysis of excavation security monitoring by SMW engineering method in the new coastal region of Tianjin

作　　者：谭儒蛟[1] 李明生[1] 张建根[1] 宋胜虎[1] 

机构地区：[1]天津市市政工程设计研究院,天津300051

出　　处：《工程勘察》2011年第3期27-30,共4页Geotechnical Investigation & Surveying

摘　　要：随着天津滨海新区城市建设的加速发展,SMW工法(劲性水泥土搅拌桩)围护结构在地下空间开发涉及的软土深基坑工程中的应用日趋广泛。本文以开发区环形地下交通空间基坑工程为例,开展了SMW工法基坑围护结构的桩身深层分层水平位移、支撑轴力、坑周地表竖向位移、坑外地下水位及周边建筑变形等内容的系统性安全监测测试,分析了天津滨海新区软土基坑工程中SMW桩围护结构的变形规律,探讨了SWM工法基坑监测的有效警戒指标及信息化施工的安全控制标准。A systemic excavation security monitoring on SMW（Soil Mixing Wall） engineering method is accomplished in the new coastal region of Tianjin,which includes deep layers’horizontal displacement,axial force of support,upper vertical displacement,groundwater level,and deformation of surrounding building.Analysis on the measured data,the deformation laws of soft soil foundation excavation by SMW engineering method in the new coastal region of Tianjin is summarized in this paper.In addition,the effective cautionary index and corresponding alarm value of this kind of excavation security monitoring are brought forward for discussion.

关 键 词：天津滨海新区 SMW工法 安全监测 

分 类 号：TD853.34[矿业工程—金属矿开采]