Analysis of anti-sliding performance of small-diameter drilling pile and ordinary cantilever pile

The strength reduction method with FEM is a numerical analysis method which is used widely in slope stability analysis. In the given evaluation criterion, analyzing the stability of slope by adjusting the strength-reduction factor and strength parameters of soil. In view of this, combining the strength reduction method with FEM and ABAQUS software, respectively using three evaluation standards as the evaluation basis of instability and failure of slope, conducting research on two kinds of programs: small-diameter drilling anti-slide pile and ordinary cantilever anti-slide pile, comparing the slope safety factor, sliding surface and the deformation of the pile body, analyzing the anti-sliding performance of small-diameter drilling anti-slide pile and ordinary cantilever anti-slide pile. Analysis shows that: the slope safety factor when setting up small-diameter drilling anti-slide pile is equivalent to that when setting up ordinary cantilever anti-slide pile; the blocking effect small-diameter drilling anti-slide pile on the extension of the slope sliding area is stronger than that ordinary cantilever anti-slide pile. © 2015 ejge.