软土地基基坑围护结构变形特点探讨  

Discussion on Deformation Characteristics of Foundation Pit Retaining Structures of Soft Soil Foundation

作　　者：曾才民 梁加俊 孙泽信[2] 

机构地区：[1]南京市交通行业与产业项目招标管理办公室,南京市240008 [2]江苏省交通规划设计院股份有限公司,南京市211800

出　　处：《勘察科学技术》2015年第3期34-37,44,共5页Site Investigation Science and Technology

摘　　要：某在建地铁项目线路经过长江漫滩区,为了解该区域车站施工地下连续墙围护结构的变形特点,在工程施工过程中,于地下连续墙内及对应位置的土体中埋设测斜管进行测斜监测。该文对该区域内四个车站地下连续墙围护结构的监测结果进行汇总,分析在该软土地质条件下深基坑开挖的监测数据。通过对16个土体测斜管,12个墙体测斜管监测数据及曲线的对比,初步掌握地下连续墙围护结构的变形特点及产生变形的影响因素。最后本文提出了一些意见和建议,为类似工程提供有价值的资料。An under construction metro line through the Yangtze River floodplain area,in order to know the deformation characteristics of the retaining structure of diaphragm wall in the station construction in this area. In the construction process,the inclinometer tubes are buried in the diaphragm wall and their corresponding soil to monitor the inclination survey. This paper summarizes the monitoring results of the retaining structure of the diaphragm wall located in four stations in this area,and the excavation monitoring data of the deep foundation pit under the condition of this soft soil geology is analysed. By comparing the monitoring data and curves which are from 16 inclinometer tube in the soil and 12 inclinometer in the wall,we can get the deformation characteristics and its influence factors of the retaining structures of diaphragm wall preliminarily. Finally,this paper puts forward some opinions and suggestions,and it provides some valuable data for similar engineerings.

关 键 词：软土地质 深基坑监测 测斜 地下连续墙变形 影响因素 

分 类 号：TU753[建筑科学—建筑技术科学]