STRESS CHARACTERS OF CIRCULAR CROSS SECTION STABILIZING PILES EMBEDDED IN ROCK UNDER DIFFERENT DISTRIBUTION PATTERNS OF LANDSLIDE THRUSTS

In order to analyze the deformation and internal force conditions of circular section stabilizing piles under different distribution patterns of landslide thrusts, the CPSP program developed by Lei Guoping based on pile-soil separation model was used to calculate the circular section stabilizing piles embedded in rock, it is easy to obtained the deflection and internal force of piles under different conditions, comparing the analytic results calculated by CPSP program with numerical simulation results calculated by ABAQUS software, it can be validated that the CPSP program is applicable for circular cross section stabilizing piles based on pile-rock separation model. By inputting different parameters through CPSP program, the deformation and internal force distribution results of circular cross section stabilizing piles in different conditions can be obtained, and some relationships about the maximum displacements, the maximum bending moment and the maximum shear force have been also summed up. In addition, based on the calculation result of CPSP and taking the continuous condition of stabilizing pile in the slip surface into consideration, the deflection curve of loading section of stabilizing pile is obtained, and deflection and internal fore results of stabilizing piles under different distribution patterns of landslides thrust is calculated and comparisons is made between these result, and influences of distribution patterns of landslides thrust on the deflection and inner force of piles are analyzed.