基于极限平衡法的岩质边坡结构面贯通性质研究

Study on Structural Surface Transfixion Property of Rock Slope Based on Limit Equilibrium Method

结构面影响着岩质边坡稳定性,而结构面的贯通性质是研究结构面的重点。针对某岩质边坡工程,利用Slide极限平衡法软件,从结构面倾角、贯通率和贯通形式出发,研究贯通性质对岩质边坡稳定性的影响。计算结果表明:结构面的贯通形式对坡体稳定性无明显影响;当坡体处于稳定状态时,结构面倾角越大,坡体安全系数越大;当坡体处于失稳状态时,结构面倾角越大,坡体安全系数越小;当结构面的倾角和贯通形式一定时,结构面贯通率越大,边坡安全系数越小,坡体容易发生失稳破坏。

The structural surface affects the stability of rock slope,and the transfixion property of structural surface is the key to study the structural surface. In view of a rock slope project,using the software of Slide limit equilibrium method,the influence of the transfixion property on the stability of the rock slope is studied from the inclination angle of the structural surface,the transfixion rate and the transfixion form. The calculation results show that the form of structural plane penetration has no obvious influence on slope stability. When the slope is in a stable state,the greater the inclination angle of the structural surface is,the greater the safety factor of the slope is. When the slope is in a state of instability,the greater the inclination angle of the structural surface is,the smaller the safety factor of the slope is. When the inclination angle and transfixion form of the structural surface are certain,the greater the transfixion rate of the structural surface is,the smaller the safety factor of the slope is,and the slope is prone to instability and failure.