Discussion of soil-rock mass failure characteristics of slope under earthquake
Abstract：The stress state and failure characteristics of slope soil-rock mass under earthquake were discussed by the methods of theoretical analysis and FLAC numerical simulation techniques.It is found that the top soil-rock mass elements of slope are easy to produce tensile stress,and occur tensile failure under earthquake load,the direction of minimum principal stress is consistent with horizontal direction,which results in formation of steep fracture surface.The principal stress direction of the bottom soil-rock mass elements change,they are under the state of bi-directional compression,occur shear failure.Slope dynamic instability is due to the formation of tension-shear fracture surface.
Keywords：slope under earthquaketension failureshear failuretension-shear fracture surface
Publication Date：2011-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)