基于模糊综合评价优化模型的边坡二次开挖稳定性评价  

Stability Evaluation of Slope Secondary Excavation Based on Fuzzy Comprehensive Evaluation Optimization Model

作　　者：王登杰[1] 王岩 孙国瑞 

机构地区：[1]山东大学土建与水利学院,山东 济南 [2]山东高速集团有限公司建设管理分公司,山东 济南

出　　处：《土木工程》2021年第7期687-694,共8页Hans Journal of Civil Engineering

摘　　要：既有支护高边坡在二次开挖过程中稳定性较差,利用灰色关联分析确定了边坡稳定性影响因素的评价权重,建立了一种考虑既有支护边坡稳定性的模糊综合评价优化模型。利用优化模型对开挖前后有无支护边坡的稳定性进行评价,发现支护结构对边坡的稳定性影响较大。通过瑞典条分法进行验证,发现两种方法的结果较为一致,表明该模糊综合评价模型对二次开挖过程中边坡的稳定性评价较为准确。The stability of the high slope with existing support is poor during the secondary excavation process. The gray correlation analysis is used to determine the evaluation weight of the factors affecting the stability of the slope, and a fuzzy comprehensive evaluation optimization model considering the stability of the existing support slope is established. The optimization model is used to evaluate the stability of the slope with or without support before and after the excavation, and it is found that the support structure has a greater impact on the stability of the slope. Validation by the Swedish strip method shows that the results of the two methods are relatively consistent, indicating that the fuzzy comprehensive evaluation model is more accurate in evaluating the stability of the slope during the secondary excavation process.

关 键 词：既有支护高边坡 二次开挖 灰色关联分析 模糊综合评价 

分 类 号：TD3[矿业工程—矿井建设]