基于GI-CV组合赋权的高填方边坡施工风险评估OA

In view to the complexity and uncertainty of slope construction processes,a risk assessment model for high-fill slope construction is proposed based on a combination of sequence relationship analysis and coefficient of variation methods.Firstly,the methods such as frequency analysis,literature review and expert consultation are used to establish a risk evaluation indicator system from four aspects of geological conditions,construction environment,triggering conditions and construction design.Secondly,the objective and subjective weights of the evaluation indicators are determined using the order relationship analysis method and the coefficient of variation method,respectively,and the combined weights are determined based on the principle of minimum discriminative information for classifying the risk indicators for high-fill slope construction into different grades,and then an evaluation matrix is constructed using trapezoidal membership functions.Finally,the assessment model is applied to evaluate the risk of the target layer.The analysis results of the embankment slope adjacent to a waste treatment facility in Yichang City indicate that the construction risk of the slope falls between Grade Ⅲ and Grade Ⅳ,leaning more toward Grade Ⅳ risk,with relatively low risk,consistent with actual results,thereby validating its reliability and accuracy.