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针对边坡地震稳定性评判中影响因素的不确定性和信息的不充分性,为提高判别结果准确性,构建灰色模糊边坡地震稳定性综合评判模型。利用隶属函数和点灰度建立综合评判矩阵,通过熵权法和改进的AHP法进行组合赋权,减少单一赋权缺陷,最后用置信度识别准则判定边坡地震稳定性等级。通过对16个地震边坡实例进行评判,与灰色聚类法和未确知测度法相比准确率更高。研究表明,组合赋权灰色模糊综合评判模型是有效且可行的,为边坡地震稳定性综合评判提供一种新方法。
In view of the uncertainty of the influencing factors and the insufficiency of information in the evaluation of the slope seismic stability, in order to improve the accuracy of the discriminant results, a comprehensive evaluation model of the seismic stability of the gray fuzzy slope is established. Synthetic evaluation matrix is established by using membership function and gray level. Combined weighting is carried out by entropy method and improved AHP method to reduce the single weighting defect. Finally, the grade of seismic stability of slope is determined by confidence criteria. By evaluating 16 examples of seismic slope, the accuracy is higher than gray clustering and unascertained measure. The research shows that the combinatorial weighted gray fuzzy comprehensive evaluation model is effective and feasible, and provides a new method for the comprehensive evaluation of slope seismic stability.