基于Fuzzy-AHP的河岸边坡稳定性综合评判

Comprehensive Evaluation of River Bank Slope Stability Based on Fuzzy-AHP Method

为快速有效地评价河岸边坡稳定性并采取科学有效的预防措施,降低不利的工程影响,在广泛调查河岸边坡稳定性影响因子的基础上,构建由2级4类16项评价指标组成的河岸边坡稳定性评价指标体系,并运用层次分析法确定评价指标的权重,通过模糊数学方法对边坡的稳定性进行综合评价。最后利用该评价模型对重庆白沙长江大桥主塔一侧河岸边坡在不同工况下的稳定性进行综合评判,说明该模型是具有一定优越性的快速评价方法,可以为后期重庆白沙长江大桥的运营维护提供有力的支持。

In order to evaluate the stabilityof bank slope quicklyand effectivelyand take scientific and effective preventive measures to reduce the adverse engineering impact.Based on the extensive investigation of the factors affecting the stability of bank slope,a system of evaluation index system of bank slope stability is constructed,which is composed of 16 evaluation indexes of 2 level and 4 classes.And the weight of evaluation index is determined by AHP,and the stability of slope is evaluated comprehensively by fuzzy mathematics.Finally,the stability of the bank slope on one side of the main tower of Baisha Yangtze River Bridge in Chongqing is comprehensively evaluated by using the evaluation model.It shows that the model is a fast evaluation method with certain superiority,which can provide strong support and reference for the operation and maintenance of Baisha Yangtze River Bridge in the later period.