高边坡稳定性评价的模糊层次与集对分析耦合模型

Evaluation coupling model for high slope stability based on fuzzy analytical hierarchy process-set pair analysis method

高边坡稳定性的定量评价对工程建设及灾害治理具有重要意义。建立岩质高边坡稳定性评价的指标体系及其评价等级标准,以模糊层次评价法确定边坡系统各级稳定性指标的权重,引入集对分析方法建立高边坡稳定性评价的模糊层次与集对分析(FAHP-SPA)耦合模型。FAHP-SPA耦合模型在三峡永久船闸岩质高边坡的实证研究结果表明,该模型物理概念清晰,计算结果合理、精度较高,建模过程直观简便,为边坡工程以及其他复杂系统的体系评价提供了新的参考方法。

Evaluation of the high slope stability is very important in engineering construction and control of landslide disasters.By determining the weights of evaluation indexes in the fuzzy analytical hierarchy process,an index system and the grading criterion of high slope stability are established.The model of fuzzy analytical hierarchy process and the set pair analysis（FAHP-SPA for short） are integrated as the model of evaluation.The research results of FAHP-SPA applied to the high slope of a permanent shiplock at Three Gorges Project show that FAHP-SPA has distinct statistic and physical concepts,visual computation method,high precision and simple,effective but perfect scheme of modeling,therefore,it can be applied to slopes and other different comprehensive assessment problems under the known grading evaluation criterion.