基于粗糙集-遗传算法的山岭隧道坍塌易发性评价  

Collapse Susceptibility Evaluation of Mountain Tunnel Based on Rough Set-genetic Algorithm

作　　者：张良 孙永新 王晓睿 肖见航 ZHANG Liang;SUN Yongxin;WANG Xiaorui;XIAO Jianhang(He′nan Yaoluanxi Expressway Construction Co.,Ltd.,Luoyang,He′nan 471000,China;He′nan Railway Construction Investment Group Co.,Ltd.,Zhengzhou,He′nan 450045,China;College of Geosciences and Engineering,North China University of Water Resources and Electric Power,Zhengzhou,He′nan 450045,China)

机构地区：[1]河南省尧栾西高速公路建设有限公司,河南洛阳471000 [2]河南省铁路建设投资集团有限公司,河南郑州450045 [3]华北水利水电大学地球科学与工程学院,河南郑州450045

出　　处：《水利与建筑工程学报》2023年第3期209-215,247,共8页Journal of Water Resources and Architectural Engineering

基　　金：河南省交通运输厅科技项目(2020J5)。

摘　　要：为了解决风险评价权重过于依赖主观赋值的问题,减少冗余属性对风险评价的影响,在传统的隧道施工坍塌风险评价的研究基础上,运用层次分析法构建指标体系,提出一种基于粗糙集-遗传算法的属性约简算法,根据现场调查和案例分析确定了21项原始评价指标并建立相应的风险评价模型。以陈家庄隧道F6断层破碎带为风险段建立山岭隧道坍塌易发性评价模型,引入粗糙集理论和条件信息熵理论确定6项属性核指标,利用遗传算法实现了属性约简,删除9项对评价结果影响较小的条件属性,最后结合模糊评价法构建风险评价模型,其评价结果为“潜在风险”。与现场实测结果对比表明以粗糙集理论和遗传算法作为指标优选策略建立的评价模型可靠实用。该风险评价方法可有效提高山岭隧道坍塌易发性评价的准确性。In order to solve the problem of risk evaluation weights relying too much on subjective assignment and reduce the influence of redundant attributes on risk evaluation,based on the traditional study of tunnel construction collapse risk evaluation,an index system is constructed using hierarchical analysis,an attribute simplification algorithm based on rough set-genetic algorithm is proposed,21 original evaluation indexes are determined and the corresponding risk evaluation model is established based on site investigation and case analysis.The risk evaluation model was established for the F6 fault zone of Chenjiazhuang tunnel,and six attribute kernel indicators were determined by introducing rough set theory and conditional information entropy theory,and the genetic algorithm was used to simplify the attributes and delete nine conditional attributes that have less influence on the evaluation results.The evaluation result is"potential risk".The field validation shows that the evaluation model established by rough set theory and genetic algorithm as the index selection strategy is reliable and practical,and the risk evaluation method can effectively improve the accuracy of the evaluation of collapse susceptibility of mountain tunnels.

关 键 词：山岭隧道 隧道坍塌 粗糙集理论 遗传算法 易发性评价 

分 类 号：U458[建筑科学—桥梁与隧道工程]