基于模糊综合评价法的岩质边坡开挖施工风险评估  

Risk Assessment of Slope Excavation Construction in Mountain Area Based on Fuzzy Comprehensive Evaluation Method

作　　者：李瀚 左伟俊 邢浩 林宇亮[2] 郭冬冬 LI Han;ZUO Weijun;XING Hao;LIN Yuliang;GUO Dongdong(The Fourth Engineering Co.,Ltd.,of China Railway Seventh Group,Wuhan,Hubei 430074,China;Central South University,Changsha,Hunan 410083,China)

机构地区：[1]中铁七局集团第四工程有限公司,湖北武汉430074 [2]中南大学,湖南长沙410083

出　　处：《公路工程》2024年第6期79-86,共8页Highway Engineering

基　　金：国家自然科学基金项目(51878667)。

摘　　要：依托某高速路堑岩质边坡施工工程,构建三层次岩质边坡开挖施工风险评估体系,提出一种基于模糊综合评价法的岩质边坡开挖施工风险评估模型。首先,该模型采用层次分析法和CRITIC法确定评价指标的主、客观权重,在此基础上利用最小鉴别信息原理确定组合权重。其次,通过建立的梯形隶属度函数获得各评价指标的隶属度向量,从而构建隶属度矩阵。然后,利用模糊综合评价法对目标进行风险评估。最后,将该评估模型应用于某高速公路路堑岩质边坡施工开挖实体工程中,并与现场评估小组利用LEC法评定得出的结果进行对比。研究结果表明模型计算结果与现场评估小组得出的判定结论基本吻合,从而验证了该模型的可行性、合理性。Relying on the construction project of a expressway cutting rock slope,a rock risk evaluation model of cutting rock slope construction based on fuzzy comprehensive evaluation method is proposed by establishing a three-level risk evaluation system of rock slope excavation construction.In this model,the subjective weight and objective weight of evaluation indexes are determined by Analytic Hierarchy Process(AHP)and CRITIC method,and on this basis,uses the principle of minimun discriminant information to determine the combined weight.Thereafter,the trapezoidal affiliation degree function is used to obtain the affiliation degree vector of each evaluation index,and the affiliation degree matrix is established.Then,the risk assessment of the target is carried out using the utilization of fuzzy comprehensive evaluation method.Finally,the evaluation model is applied to the expressway cutting rock slope construction excavation physical project and compared with the results given by the on-site evaluation team using the LEC method.The research results show that the model calculation results are basically consistent with the determination given by the on-site assessment team,thus verifying the feasibility and rationality of the model.

关 键 词：岩土工程 边坡施工 层次分析法 CRITIC法 隶属度 模糊综合评价法 

分 类 号：U416.14[交通运输工程—道路与铁道工程]