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本文简要分析了目前国內计算埋式抗滑桩的两类方法。对于以弹性理论为基础的“地基反力系数法”直接用于求解滑坡体內桩身的抗力这一问题有不同看法。同时提出以滑动面上土体所具有的极限平衡应力状态为边界条件的弹塑性混合解法,即“换算地基系数法”。本文还试图从分析桩与滑体相互间的作用,来寻求作用于桩上的设计荷载,阐明桩间土体的传力性能,以及解决桩间距的计算等问题。然而,正如文中所指,由于抗滑桩的受力情况甚为复杂,尤其是桩与滑体相互间的作用难以简单地弄清楚。因此,上述一些设想仅仅是从理论上进行分析的一个尝试,向有待于实践验证。
This paper briefly analyzes two kinds of methods for calculating embedded anti-slide piles in our country. There are different opinions on the direct use of the “foundation reaction coefficient method” based on elasticity theory to solve the resistance of the pile body in landslide. At the same time, an elasto-plastic hybrid solution with boundary equilibrium condition as the limit equilibrium stress state of soils on the sliding surface is proposed. This paper also attempts to find the design load acting on the pile from the analysis of the interaction between the pile and the slide, clarify the transmission performance of the soil between the piles, and solve the calculation of the pile spacing. However, as mentioned in the paper, the force exerted on anti-slide piles is very complicated. In particular, the interaction between piles and slide bodies can not be easily understood. Therefore, some of the above assumptions are only an attempt to analyze the theory, to be verified by practice.