岩坡稳定性优势面分析法——以太湖度假区休体公园渔洋山边坡为例

Stability analysis in rock slope by preferred plane theory Base on stability evaluation of rock slope in Yuyang Mount rest park Tai Lake vocation village

运用优势面理论层次分析法,确定岩坡的控稳优势面,通过对太湖度假区休体公园渔洋山边坡的研究得出F1和软弱夹层是控稳优势面,通过优势面组合分析,得出4组优势分离体,其中F1、软弱夹层和边坡临空面组合为试算安全系数最小优势分离体。最后用Sarma法进行稳定性计算,得出各种优势分离体组合模型在考虑地下水和地震加速度为0.15g的情况下均是不稳定的。结果表明,采用层次分析法对岩坡稳定性进行评价的方法是可行的。

This paper studied the stability of rock slope in Yuyang Mount by Analytic Hierarchy Process（AHP） of preferred plane theory. Firstly,ascertained the preferred plane that control the slope＇s stability by AHP. Fault 1 and soft plane are preferred plane. Then, put these preferred plane together to assemble preferred objects and built an engineering geological model. Lastly, computed the stability of the rock slope. If seismic accelerate velocity are 0.15 g and ground water are effected,the slope is instability. The results indicate that AHP is workable.