Three-dimensional Slope Stability Analysis With Minimum Potential Energy Method By Consider Anti-slide Piles Deformation

China's vast territory,which is widespread in the mountain plateau slope.In order to prevent landslides,slides and other disasters,so the need for artificial reinforcement of the slope.The anti-slide pile has been widely used in slope control engineering due to its good working performance and economical cost.When the anti-slide pile design is unreasonable or there are design defects may cause dangerous slope,resulting in significant economic losses and casualties,and will seriously affect the construction of the project carried out.Therefore,the study on the stability of slope stabilized by anti-slide piles is of great theoretical and engineering value.Based on the National Natural Science Foundation of China,(NO.51304084)Jiangxi Provincial Natural Science Foundation(NO.20151BAB206026)and Jiangxi Provincial Communications Department Science and Technology Project,(NO.2016C 0006).Aiming at the failure of the sliding surface with arbitrary shape and shape,considering the deformation and pile-soil interaction of the anti-slide pile,a more accurate calculation method is put forward,and the stability analysis is carried out by the anti-The main research contents and achievements are as follows:(1)For the landslide with arbitrary shape Three-dimensional slope,taking into account the landslide thrust and residual resistance before the pile,and assuming that the pile-soil force for the triangular distribution,derived anti-sliding pile along the potential sliding direction of the deformation formula,and then obtained anti-slide pile corner And pile top displacement.Then through the indoor anti-slide pile model test,the measured data in the field and the theoretical calculation of the results were compared,verify the pile deformation formula is reasonable.(2)Based on the minimum potential energy method,considering the deformation of the anti-slide piles under the landslide thrust and residual resistance before the pile,a three-dimensional model is established to obtain the total potential energy function of the system.Three-Dimensional Minimum Potential Energy Stability Analysis of Slope Reinforced Slide.The results show that the safety factor calculated by this method is close to the safety factor obtained by other methods,which shows that the method is reasonable.Key words:safety factor;classical safety factor;(3)Based on the above-mentioned three-dimensional minimum potential energy stability analysis method of improved anti-slide piles,the calculation module and the interface module are developed by MATLAB,and the slope stability analysis method of three-dimensional minimum potential energy slope Program development.(4)The stability analysis method proposed in this paper is applied to concrete engineering examples to verify the engineering application value of the method.