直线形滑面边坡的识别与稳定性及支护力计算

Recognition and Stability and Supporting Force Calculation of Slope with Linear Slip Surface

在实际边坡工程中,土层广布、岩质部分有外倾结构面的土岩组合边坡常常视为有土层超载的直线形滑面边坡,甚至填土沿基岩面滑动的土岩组合边坡、无外倾结构面的土质边坡和岩质边坡也视为直线形滑面边坡;直线形滑面边坡稳定性及支护力计算也常常只采用单块极限平衡法。该文对这些做法存在的问题进行了分析并提出建议。

In practical slope engineering, the earth-rock combined slope, with widely spread soil and part of the rock with extroversion joint, is usually regarded as slope of linear slide surface with overloading soil, and even the earth-rock combined slope with filling soil sliding along the bedrock surface,soil slope without extroversion joint and rock slope are also viewed as linear slide surface. The single chunk limit equilibrium method is often applied to calculate the stability and supporting force of the linear slide surface. The existing problems in the method are analyzed with suggestions presented.