EVALUATION OF EARTHQUAKE SLOPE FAILURE ALONG A WEAK LAYER
DENG Jianliang1,2,XU Qiang2,KOSEKI Junichi3
(1. School of Naval Architecture,Ocean,and Civil Engineering,Shanghai Jiaotong University,Shanghai 200240,China; 2. State Key Laboratory of Geohazard Prevention and Geoenvironment Protection,Chengdu University of Technology, Chengdu,Sichuan 610059,China;3. Institute of Industrial Science,Tokyo University,Tokyo 1538505,Japan)
Abstract:The earthquake-induced large displacement of slope containing a weak layer was calculated by extended Newmark with Sweden method(extended NS method). In the methods,the effects of excess pore water pressure and the change of sliding plane geometry on displacement are rationally evaluated. The details of extended NS method were described. A comparison between extended NS method and extended NJ method was performed on a calculation example. The characteristics of these two methods were described. In addition,the effects of ground water level,internal frication angle and slice width on the calculated horizontal displacement were evaluated.
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