Comparative Analysis of the Effect of Fully Buried Rigid Frame Pile and Single Row Anti Slide Pile on Slope Reinforcement
This paper presents a case history of the comparative study of a single row of anti-slide pile used in a practical slope reinforcement project is equivalent to a fully buried rigid frame piles by from the principle of the equal concrete consumption.The three-dimensional finite element model of the fully buried rigid frame piles and a single row of anti-slide pile for slope rein-forcement is established by using the finite element analysis software ABAQUS.The factor of safety,horizontal displacement,internal force and displacement distribution of the two types of piles are obtained.From the quantitative point of view,the differences of the effect and stress between the rigid frame pile and the single row pile are compared intuitively to discuss the advantages of the rigid frame pile in slope reinforcement.Comparing with single row anti-slide pile,the results show that,the bending moment distribution of single row anti slide piles is a"bow"shape,while that fully embedded rigid frame piles is an"S"shape.Due to the connections of the continuous waler,the fully buried rigid frame pile bears less internal force.The dis-placement of the slope strengthened by the fully buried rigid frame pile is smaller,the factor of safety is larger,and the slope is therefore safer.
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