Finite difference method of internal force calculation of anti-sliding piles with multi-row pre-stressed anchoring cables

This paper discusses a new internal force calculation method of anti-sliding pile with multi-row pre-stressed anchors on the high slope engineering.Based on the principle of foundation coefficient method in calculating the internal force of the ordinary anti-sliding pile,considering the deformation consistence between multi-row anchoring cables and pile body,the finite difference method is presented to calculate its internal force.Comparing with the traditional method,this method is easy to compile a program to calculate the tensile force of anchors,displacement and internal force of the whole pile and it's regularities of distribution.The field testing results and the calculating results are compared by an engineering example,it shows that the calculation results reflect the actual stressful condition of pile,and this calculation method is applied and reliable.