Study On Rational Layout Of Anti Slide Piles Considering Soil Arching Effect

Landslide hazard is really serious,and anti slide pile can play a great role in landslide control.In the treatment of landslide,large diameter anti slide pile is often used to reinforce the landslide.This scheme sometimes causes economic waste,and it is easy to slide over the top of the anti slide pile.According to the characteristics of the pile and soil,the multi row pile is used for subsection reinforcement and the soil arch effect can be made full use of the soil arch effect,which can reduce the overall slide force of the landslide,but also it can reduce the overall slide force of the landslide.The landslide can be prevented from multiple top sliding failure.Under the influence of soil arching effect,the reasonable layout of multi row small diameter anti slide piles is studied in this paper.The details are as follows:(1)to analyze the forming conditions of the soil arch effect,the form of failure and the form of the arch foot,the two dimensional plane soil arch model is established by the ABAQUS finite element software,and the factors(pile center distance,pile section size,shear strength of soil)and the factors of multi row pile soil arch effect(pile spacing and pile)are explored respectively.The layout of piles forms a theoretical foundation for the design and design of small diameter multi row piles.(2)using the ABAQUS finite element software and the theory of strength reduction method,the three-dimensional slope stability analysis of a project is carried out.According to the obtained plastic strain cloud chart,displacement cloud chart,safety factor and so on,the control effect of the large diameter single row pile scheme and the three row small diameter pile scheme is compared,thus the more optimized scheme is obtained.Small diameter and multi row pile scheme...