On supporting technology for deep and large foundation pit near metroChinese Full Text
XIEXiao juan;Chinese Nonferrous Metal Survey and Design Institute of Changsha Co.,Ltd;
Abstract: Numerous equipments in metro tunnel,narrow space and high speed of the train call for strict requirement of railway deformation.Deep and large foundation pit near metro brings about differential settlement and horizontal displacement of metro tunnel and station,which exerts an influence on normal operation of metro.Taking some foundation pit near metro line 2of Shenzhen as an example,we carry out analysis on influence factors of deformation during foundation pit design,determines key risk points of this foundation pit engineering,and adopts specific type of support structure and excavation method in order to avoid influence of excavation of foundation pit on normal operation of adjacent metro.Results of design calculation and construction monitoring show that deformation control value of adjacent metro railway and station is within the limit of allowed value.
- Series：
(C) Architecture/ Energy/ Traffic/ Electromechanics, etc
- Subject：
Railway Transportation
- Classification Code：
U231.3
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