Calculation method of landslide thrust considering the reaction force of piles and factor of safety—implicit solution using transfer coefficient
ZHAO Shangyi1，2，ZHENG Yingren1，AO Guiyong3
(1. Department of Civil Engineering，Logistical Engineering University，Chongqing 401311，China；2. the Chongqing Key Laboratory of Rock and Soil Mechanics and Geological Environment Protection，Logistical Engineering University，Chongqing，401311，China；3. China Railway Eryuan Engineering Group Co.，Ltd.，Chengdu，Sichuan 610031，China)
Abstract：A simplified method for estimating the landslide lateral loads acting on the stabilizing piles，called unbalanced lateral load transfer method，has been used for decades in China. However，the method do not consider the reaction force of piles in the force components acting on a typical slice，which may result in calculation errors. This paper presents a modified formula based on the unbalanced lateral load transfer method. The horizontal reaction force of pile is added into the force components acting on a typical slice. In this way，the horizontal lateral loads acting on the stabilizing piles can be estimated through the strength reduction(the reduction method is equal to the target factor) based on the force equilibrium analysis. As a result，the estimated stability factor of safety of landslide reinforced by stabilizing piles is equal exactly to the target factor of safety.
赵尚毅1，2，郑颖人1，敖贵勇3. 考虑桩反作用力和设计安全系数的滑坡推力计算方法—传递系数隐式解法[J]. 岩石力学与工程学报, 2016, 35(8): 1668-1676.
ZHAO Shangyi1，2，ZHENG Yingren1，AO Guiyong3. Calculation method of landslide thrust considering the reaction force of piles and factor of safety—implicit solution using transfer coefficient. , 2016, 35(8): 1668-1676.
2016, Vol. 35 
