Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Copper Engineering》 2010-01
Add to Favorite Get Latest Update

Numerical Simulation of Strata Consolidation Subsidence Induced by Metro Tunneling in Saturated Soft Clay Strata

QI Tai-yue,TAN Dai-ming,GAO Bo(Civil Engineering School,Southwest Jiaotong University,Chengdu 610031,Sichuan,China)  
A quantitative research is conducted on the strata consolidation caused by metro tunneling in saturated soft clay strata in an effort to select the best construction method.When the integrated effects of fluid-solid coupling and tunneling mechanics are taken into account,FLAC3D is applied to conduct the numerical simulation of pumping,dynamic pumping and non-pumping construction methods so as to respectively obtain the curved surfaces of both ground surface subsidence and strata consolidation subsidence,which largely approximate to the data by spot measuring.The research results reveal that the amount of ground surface subsidence caused by pumping,dynamic pumping and non-pumping construction methods is respectively 29 mm,60 mm and 116 mm with a ratio of 1∶2∶4 and that the percentage of strata consolidation subsidence vs.whole ground surface subsidence in the three methods is respectively 27%,50% and 79%.Apparently,the non-pumping construction method is the most effective method of controlling strata consolidation subsidence induced by metro tunneling in saturated soft clay strata.The research results have been successfully applied in the construction of Shenzhen metro.
【CateGory Index】: U456.3
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved