基于未确知测度的边坡地震稳定性综合评价

Comprehensive evaluation on seismic stability of slopes based on unascertained measurement

文章提出一种基于未确知测度理论的边坡地震稳定性综合评价方法,建立了各评价指标的未确知测度函数。根据信息墒理论计算各评判因子的权重,用置信度识别准则进行等级判定,得出了评价结果。该评价方法能解决边坡地震稳定性评价中诸多因素不确定性问题,还能对其进行定量分析。对实际工程中的16个典型的地震边坡进行综合评价,并与灰色聚类法、综合指标法、实测震害的结果进行比较。研究结果表明:未确知测度评价法性能良好,正确率高,具有重要的实用价值,为边坡地震稳定性的综合评价提供了一条新途径。

Based on unascertained measurement theory,a comprehensive evaluation method to predict the seismic stability of slopes was presented in this paper.The function of unascertained measure of all evaluation indexes was established, the weights for indexes was calculated by entropy weight theory,and a result of the seismic stability of slopes has been carried out using the rules of credible recognition.This method can solve a lot of unascertained problems in comprehensive evaluation seismic stability,and also can analyze the seismic stability objectively.Furthermore,using listed sixteen slopes as samples,the effectiveness were discussed by the aid of comparison both predicted results of the grey clustering method,comprehensive index method,and practical performance of slopes during earthquakes.The research results show that the comprehensive evaluation method of unascertained measurement presents excellent performance,high prediction accuracy and has wide applying prospect,it is an effective new way to predict the seismic stability of slopes.