An improved calculation methodology for internal force of anti-slide pile

A new simplified calculating method for internal force of anti- slide pile under various boundary conditions is proposed based on analyzing traditional calculating methods under different boundaries in the current standard. The new method is illustrated from the aspects of judging approach to the rigid pile and elastic pile,the distribution function expression of landslide thrust and soil resistance,calculating method of rigid pile,the internal force and displacement expression of elastic pile in k and m methods. The accuracy and correctness of the presented method was verified by comparing the data with physical model test. It shows that the new method can basically reflect the real force state of anti- slide pile and is helpful to the design and optimization of anti- slide piles.