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《Journal of Disaster Prevention and Mitigation Engineering》 2008-01
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Numerical Analysis of Stability of Soil Cave Ground below Building

LIU Feng,NIAN Ting-kai,YANG Qing,LUAN Mao-tian (State Key Laboratory of Coastal and Offshore Engineering,Dalian University of Technology;Institute of Geotechnical Engineering,School of Civil and Hydraulic Engineering,Dalian University of Technology,Dalian 116024,China)  
With the rapid increase of comprehensive exploitation of ground and underground engineering,the conflict between ground building and underground engineering and the corresponding disasters are becoming more and more obvious,which has been widely concerned.For instance,the deformation and failure of foundation with caverns including the digging holes in ground and construction after digging holes have become an urgent and troublesome issue.In this paper,a case study is presented,in which the commercial FEM software ABAQUS combined with strength reduction factor approach and loading coefficient method is employed to simulate the failure process and analyze the overall stability of soil cave ground under building loads.Furthermore,numerical computation considering different ground loading modes and tunneling depths is carried out to investigate the stability of construction after digging of holes.Various curves are obtained and some laws are discussed to offer references for the pertinent engineering constructions and disaster prevention and mitigation in underground engineering.
【Fund】: 辽宁省科技基金项目(20042163);; 海岸和近海工程国家重点实验室基金项目(LP0608);; 大连理工大学青年教师基金项目(2003211)资助
【CateGory Index】: TU470.3
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