基于层次可拓集的公路边坡稳定性评估  

Stability assessment of highway slope based on extension set of hierarchy

作　　者：王道隆 向敬 黄亚娥 曾铃 WANG Daolong;XIANG Jing;HUANG Ya'e;ZENG Ling(CCCC Road and Bridge South China Engineering Co.,Ltd.,Qingyuan 528400,China;Zhejiang Ocean University,Zhoushan 316000,China;Changsha University of Science and Technology,Changsha 410114,China)

机构地区：[1]中交路桥华南工程有限公司,广东清远528400 [2]浙江海洋大学,浙江舟山316000 [3]长沙理工大学土木工程学院,湖南长沙410114

出　　处：《交通科学与工程》2022年第2期13-19,共7页Journal of Transport Science and Engineering

基　　金：浙江省项目(2020C21013);中交集团项目(ZJLJGLTJ5A3JSFW2019011)。

摘　　要：为分析公路边坡稳定性评估的影响因素,确定稳定性等级,基于结合层次分析法和可拓集理论,构建了基于层次可拓集的边坡稳定性评估模型,建立多层次评估指标体系,计算了各评估指标的权重和各层指标的综合关联度,并对评估指标进行了排序。依据该模型对广连高速路基某段岩质路堑高边坡施工稳定性进行了评估,研究结果表明:该边坡稳定性综合关联度分别为-0.4479、-0.1880、-0.0131、-0.0143和-0.3398,稳定性评估的级别特征值为3.3154,评估结果为Ⅲ级,偏向为Ⅳ级,与现场勘测报告一致。该模型可为公路边坡稳定性评估和施工方案的编制提供参考。In order to analyze the influencing factors for stability evaluation of highway slope,assessing the stability grade.Based on the AHP method and extension set theory,the assessment model of slope stability was established using extension hierarchy method.The multi-level assessment index system was established,the weight order of assessment indices and the comprehensive correlation degree of each level index were calculated.The construction stability of a rock cutting high slope in the Guanglian highway subgrade was evaluated using the model.The research results show that the comprehensive correlation degree of the slope stability is-0.4479,-0.1880,-0.0131,-0.0143,-0.3398,respectively.The grade characteristic value of the stability evaluation is 3.3154,and the evaluation result is gradeⅢto gradeⅣ,which is consistent with result from the field survey.The model can provide reference for stability evaluation of highway slope and construction plan.

关 键 词：路基施工 可拓集 边坡稳定性 

分 类 号：U416[交通运输工程—道路与铁道工程]