南京河西某大面积深基坑监测实践与分析  

Practice and Analysis of a Large area of Nanjing Hexi Deep Foundation Pit Monitoring

作　　者：赵小飞[1] 赵升峰[1] 马世强[1] 

机构地区：[1]南京市测绘勘察研究院有限公司,江苏南京210019

出　　处：《城市勘测》2017年第1期152-157,共6页Urban Geotechnical Investigation & Surveying

摘　　要：软土地区大面积深基坑监测与分析是地下工程建设中的重要工作之一,总结与分析软土地区大面积深基坑监测具有重要的工程意义。以南京河西地区某面积为40 900 m2,开挖深度为12.3 m^12.9 m的深基坑为背景,结合基坑开挖、周边环境保护要求以及设计与施工对监测信息的要求,进行了监测与分析。根据监测结果,着重分析了土体深层水平位移、周边道路沉降、地下管线及地表沉降、邻近建筑物沉降、立柱沉降、支撑轴力和坑外地下水位变化,并对监测数据进行了原因分析与总结,可为今后类似的深基坑监测提供一些借鉴。The monitoring and analysis of large area deep foundation pit in soft soil region is one of the important work in the construction of underground engineering,and it is very significant for monitoring to summary and analysis a large deep foundation pit in soft soil region. Taking a foundation pit engineering in Nanjing hexi as an example,whose area is 40900 m2 and depth of excavation ranges from 12. 3m to 12. 9m. The foundation pit has been carried out to monitor and analysis,combining with excavation,requirements of surrounding environment protection,as well as the design and construction. According to the results of monitoring,the deep soil horizontal displacement,settlement of surrounding roads,underground pipe line and surface,as well as the settlement of nearby building and column,the axial forces of strut and the variations of under-water level outside the foundation pit has been analyzed,and the monitoring data have been summarized and analyzed,which can provide some reference for similar deep foundation pit monitoring in the future.

关 键 词：大面积深基坑 软土地区 基坑监测 信息化施工 

分 类 号：TU413[建筑科学—岩土工程] TU196[建筑科学—土工工程]