The Monitoring and Analysis of the Anti-Slide Pile’s Pile-Soil Interaction

Abstract

In the landslide disaster control and high slope strengthening engineering, anti-slide pile is one of trusted engineering measures, but cognition in aspect of forced state on the anti-slide pile, the pile-soil mechanism etc, which should be strengthened. Therefore, monitoring objects with three cantilever anti-slide pile entities in the loess high slope somewhere, burying monitoring instruments such as earth pressure cells and steel bar meter, for as long as 18 months of monitoring. Through analysis of monitoring results, can draw the following conclusion:①The soil pressure distribution form before the anti-slide piles is parabola-shape as a whole, whatever above the slip surface or under the slip surface the soil pressure distribution form behind the anti-slide piles is almost triangle as a whole;②The anti-slide piles construction are completed, pile-soil interaction force and reinforced by stress reaches stability in about 16 months;③A maximum soil pressure before the anti-slide piles on the ground, the soil pressure behind the anti-slide piles near the potential sliding surface;④Before the anti-slide piles and behind the anti-slide piles, reinforced by stress from pile cap to pile bottom respectively is "compressive stress and tensile stress" and "compressive stress, tensile stress and compressive stress, tensile and compressive stress of zero before pile is tensile stress value maximize after pile.

Research on shear characteristics of pile–soil interface under cyclic loading

“…Zhao and Liu [5] simulated a cyclic shear test of gravel-structure interface between pile and soil at the micro level using PFC2D. Wang [6] studied the formation, development, and failure mechanisms of interactions from two aspects: visual model test and discrete element numerical analysis. Wang et al [7] analyzed the mechanical response of geogrids and soils under rigid and flexible top boundary conditions on a mesoscopic scale.…”