水资源与水工程学报2017，Vol.28Issue(2)：233-236,243,5.DOI:10.11705/j.issn.1672-643X.2017.02.40
基于动力强度折减法的地震边坡稳定性分析
Seismic slope stability analysis based on dynamic strength reduction method
乔蓓 1江德军2
作者信息
- 1. 成都大学,四川成都610106
- 2. 国电大渡河流域水电开发有限公司库坝管理中心,四川乐山614900
- 折叠
摘要
Abstract
At present,there are still some deficiencies in the method of slope stability analysis under the present dynamic interaction.For examples,the dynamic problem was treated as a static problen,dynamic effect under loading seismic wave was not fully considered,only shear failure was considered,and the gradual failure process of the forming of slope sliding surface was not considered,etc.Therefore,both the reduction of slope shear strength parameters and slope progressive failure process would be considered in this paper.Combined with the dynamic finite element strength reduction principle and slope instability criterion,the slope dynamic stability safety factor and the tensile and shear failure surface were both determined from the monitoring point displacement and acceleration mutation,the convergence of numerical,and the penetration of tensile and shear failure surface.The results showed that,the dynamic finite element strength reduction method evaluated the rock slope stability under seismic action quantitatively and effectively,and fully reflected the gradual failure process.The results can provide references for seismic design of rock slope under seismic action and dynamic stability analysis.关键词
岩质边坡/渐进破坏/动力安全系数/完全动力强度折减/失稳判据/地震边坡/稳定性分析Key words
rock slope/gradual failure/dynamic safety factor/full dynamic strength reduction/instability criterion/seismic slop/slop stability analysis分类
建筑与水利引用本文复制引用
乔蓓,江德军..基于动力强度折减法的地震边坡稳定性分析[J].水资源与水工程学报,2017,28(2):233-236,243,5.
