Sensitivity analysis of shear stress between the landslide and pile

Abstract

There are many factors which can affect the mechanical properties of interface.Targeted research about effect anti-slide pile design parameters act on the contact stress is carried out in this paper. Based on the specific slope example and the principle of orthogonal experiment, the effect that the pile spacing(s), pile cross section width (b), pile cross section length/ width (h/b), the pile length (L) conduct on the maximum shear stress between the landslide and anti-slide pile is thoroughly discussed by combining with orthogonal design method and numerical simulation organically. The results show that(1) The order of influence factors respectively is L, S, b, h/b for the maximum shear stress on interface in the front of pile, and it is L, b, S, h/b for the maximum shear stress on behind of pile;(2) L is the main factor that affects the maximum shear stress on the interface between anti-slide pile and soil;(3) Effect about S and L acting on maximum shear stress of the interface respectively is significant and very significant; h/b has no significant effect on maximum shear stress of the interface. © (2013) Trans Tech Publications, Switzerland.