涉水岸坡稳定性影响参数的敏感性分析

The Sensibility Analysis of Influencing Factors of the Paddle Slope Stability

针对常规的敏感性分析所存在的不足，提出用灰色系统理论中的灰关联分析方法对影响涉水岸坡稳定性的诸多因素进行敏感性分析。通过分析表明，在影响岸坡稳定性的诸多因素中，内摩擦角的影响最大，其次分别是外水压力、粘聚力、土体密度和浸润面位置这些因素的影响，而坡高比对岸坡稳定性的影响最小。根据影响参数敏感性的大小，建议在实际工程中，可以优先考虑降低坡体内浸润面位置（增加排水系统），其次考虑改变坡高比（削坡法）的治理方法，来提高涉水岸坡的稳定性。

For the lack of sensibility in the common analysis, grey correlation analysis is adopted to analyze the sensibilities of the factors influencing the stability of paddle slope. Among these factors, the internal friction angle is the most influential one, followed by the external water pressure, the cohesive strength, the density of soil body, the location of infiltration surface, and the height ratio of the slope. It is suggested that the location of the infiltration surface （ increasing the drain system） should be put into consideration first, then the controlling method of changing height ratio （ cutting slope） so as to improve the stability of paddle slope in the real practice.