The Stability Evalition And Engineering Prevention Research Of "Xijiayuanzi" Landslide

“Xijiayuanzi” landslide located in Huaying.GuanganCity,Sichuan Province.Thetop of landslide located behind in civil house scarp,the rear edge of landslide locatedoutside of railway scarp,the west boundary of landslide located gully,and the eastboundary of landslide located the steep junction.The length of landslide is91m,andthe width is90-300m,average width is195m,the area is11000m2,the average depth is5m,volume of landslide is5.5×104m3,belongs to a small shallow soil tractive landslide.This landslide threats112people life-safety,50houes and300m highway,latentlosses about5millions yuan.This paper base on the collection of data,discussed the engineering geologicalcharacteristics of landslide,study on development and formation conditions oflandslide,analysis on evolution mechanism and deformation-failure characters oflandslide,use the limit equilibrium method to evaluation landslide stability,in naturalrainstorm and earthquake3different conditions.By evaluation landslide stability weknow that:this landslide is stable in nature and earthquake conditions,in rainstormcondition this landslide is not stable, equates with the fact.This paper base on the evaluation landslide stability,and combined with landslidedevelopment conditions, topography and geomorphology, formation lithology,harmobject, putting forward2different of treatment scheme:The first treatment scheme isanti-slide pile+drain,the second treatment scheme is anti-slide pile+drain+retainingwall.This2different of treatment scheme compare in technical feasibility, constructionfrasibility and economy feasibility, recommended the second treatment scheme:in themiddle of landslide use the anti-slide pile,in the both sides of landslide use retainingwall,and rear edge of landslide use drain.At the end this paper conducting structural checking computation of differenttreatment schemes,all the treatment schemes can meet the demand of landslide controlengineering...