Research On Position Selection Of Anti-Slide Pile Based On Point Safety Factor Method

Select a decent position for anti-slide pile is very important to a landslide.With the help of point safety factor method.Fistly,different landslide mechanics will analysis.And a conclusion will make to them so that we will find the relationsip between point safety and landslide mechanics.Secondly, to understand how the material of landslide and model size to influent the landslide mechanics.An influence analysis to them is necessary.What’s more.sensitivity analysis to overall safty factor and reduction is necessary too.On the base of these work,an evaluation method which evaluate the supporting effect of anti-slide pile in the cross section will proposed.This method will take the maximum shear stress of anti-slide pile,the head displacement of anti-slide pile, the maximum shear stress of sliding bed, the maximum displacement of landslide and the position of the maximum displacement into account.With the aid of finite difference soft FLAC3D,the best position of the anti-slide pile will find.To find a general rule,test and verify should make when the calculation parameters and model size varies.so a general relationship of point safty and the best positon of anti-slide pile will find. On the base of these work,we will find a way to select section position of anti-landslide pile with the help of point safty method.In the end, this method will apply to the highway landslide project which is at Danba500kV substation and near HuangTukan.Compared with real solutions.this method is close to real solution.The moniterting data which include the reinforcement stress of anti-slide pile, displacement of pile head landslide and the slide shows that the ati pile works well. So we can conclude that the point safty method apply to optimal design of anti-slide pile is workable.