防灾减灾工程学报2017，Vol.37Issue(5)：763-768,6.DOI:10.13409/j.cnki.jdpme.2017.05.010
考虑地震力与静水压力的顺层岩质边坡弯曲破坏分析
Analysis of Flexural Failure of Consequent Rock Slope Considering Seismic Force and Hydrostatic Pressure
摘要
Abstract
The consequent rock slope is a common type slope in engineering,and the flexural failure often occurs in construction of consequent rock slope.When the overlying rock mass meets the requirement of sliding,and the front of rock is hindered in sliding,it will cause the consequent rock plate near the foot to be under vertical compress stress.In addition,with the joint action of the seismic force and the hydrostatic pressure.It will be liable to cause flexural deformation until flexural failure.The article is based on the theory of elastic-plastic plate stability,considering the influence of plasticity of rock mass and slope length,and giving special considerations to the influence of seismic force and the hydrostatic pressure,and then establishes the computing formula of the length of flexural failure and the stability coefficient.After contrastive analysis between the computing formula and the existing analysis method,the consistency and the difference will be given.Combined with the special parameters of the Chongqing Huaihua Railway's two engineering projects and putting them into formula and then calculating with MATLAB,it finds that the results are consistent with the actual investigation.Besides,the influence of different parameters of seismic force and the plastic parameters of rock plate on the calculation results are analyzed,which verifies the feasibility of this method.关键词
顺层岩质边坡/弹塑性板理论/地震力/静水压力Key words
consequent rock slope/elastic-plastic plate theory/seismic force/hydrostatic pressure分类
建筑与水利引用本文复制引用
毛文涛,冯君,杨涛,王洋..考虑地震力与静水压力的顺层岩质边坡弯曲破坏分析[J].防灾减灾工程学报,2017,37(5):763-768,6.基金项目
国家自然科学基金项目(51178402)资助 （51178402）
