Study on evaluation method of three-factor atlas for stability of rain-type soil slope
Rainfall is an important trigger factor in the prone environment of slope engineering.Taking a slope in Anxi County as an exam-ple,this paper comprehensively analyzes the relationship between rainfall intensity,duration and safety factor of slope stability by using fi-nite element method and strength reduction method.The complex relationship between rainfall intensity,duration and safety factors is intui-tively expressed through 3D data atlas,which provides a new perspective and understanding for slope stability analysis.The results show that:rainfall intensity and duration have significant effects on slope safety factor and slope deformation.The multi-factor three-dimension-al map of rainfall intensity and duration was established,and the evaluation grade of slope under different rainfall conditions was divided by the safety factor,which more intuitively expressed the changing trend and interaction characteristics between the data.
Soil slope stabilityABAQUS finite element analysisSafety factorThree factor map evaluation