岩质边坡稳定性分析中的AE技术研究

A Study on the Acoustic Emission Technology in the Analysis of Rock Slope Stability

岩质边坡稳定性分析通常采用极限平衡分析法。各种极限平衡分析法均需首先假定出边坡滑动面的形状及具体位置 ,本文利用声发射原理及技术 ,对声发射仪监测结果采用逐次近似法进行分析 ,从而在边坡不断破坏的动态变化过程中 ,准确定位出边坡破坏面的具体位置及形状 ,再利用各种极限平衡分析方法 ,计算边坡的安全系数来评价边坡的稳定性。本文的研究方法有利于提高边坡稳定性分析的准确性。

Limit equilibrium analysis methods are usually used to assess stability of rock slopes. For application of the various limit equilibrium analysis methods, assumptions must be made regarding the shape and specific position of the slope slide surface. Based on the principle and technology of acoustic emission, the results monitored by acoustic emission devices are analyzed using the convergence method. Therefore, the specific position and shape of the slide surface of slope can be identified during the dynamic evolving process of slope failure. Finally, the stability of the slope can be assessed via a slope safety coefficient obtained using various limit equilibrium methods. This approach is favorable for enhancing the accuracy of slope stability analysis.