浅层采空区塌陷危险性评价方法研究  

The Evaluation Approach Study on the Hazard of Shallow Embedded Goaf Collapse

作　　者：彭有宝[1] 张宇翔[1] 康凯 Peng Youbao;Zhang Yuxiang;Kang Kai(BGI Engineering Consultants Ltd,Beijing 100038,China)

机构地区：[1]北京市勘察设计研究院有限公司,北京100038

出　　处：《岩土工程技术》2018年第6期282-287,316,共7页Geotechnical Engineering Technique

基　　金：北京市科委课题项目(Z121100000812006)

摘　　要：鉴于浅层采空区的复杂性、不确定性,目前缺乏针对浅层采空区塌陷危险性的有效评价方法。在对浅层采空区详尽客观调查探测基础上,提出了基于层次分析法的模糊综合评判定量评价方法评价采空塌陷危险性。首先,在研究区工程地质条件、采空区塌陷机理和塌陷影响因素分析基础上建立采空塌陷评价因子体系及标准;其次,针对离散型和连续型变量因子的不同,分别采用专家评定法和适宜的隶属度函数模型构建隶属度评价矩阵,同时采用层次分析法中的特征向量法确定因子权重;最后,通过权重矩阵和隶属度矩阵的合成运算得到评价结果向量,按贴近度原则确定危险性等级。研究结果表明,模糊综合评判方法在评价浅层采空区塌陷危险性方面是可行并有效的。In view of the complexity and uncertainty of shallow embedded goaf,the effective method for evaluating the hazard of goal collapse is lacked at present.Based upondetailed investigation and probing for shallow embedded goal,the quantitative fuzzy comprehensive approach on the basis of analytic hierarchy process for evaluating goaf collapse is put forward. First,on the basis of analysis of geological conditions and the goal collapse mechanism as well as the influential factors in the research area,the evaluating factor system and criteria for goal collapse are to be established.Second,in accordance of the difference between discrete variable and continuous variable,the expert judging method and appropriate membership idea function model are employed respectively in constructing membership idea matrix. Simultaneously,the weight numbers can be obtained by applying eigenvector method of analytic hierarchy process.Last,the evaluation vector quantity can be attained through weigh number matrix and membership idea matrix compositional operations.The hazard grade level will be determined by applying the fuzzy nearness degree principle.This paper shows that the comprehensive fuzzy evaluation approach is practical and effective in the aspect of evaluating the hazard for shallow embedded goal collapse.

关 键 词：浅层采空区 采空塌陷 隶属度 权重 一致性检验 

分 类 号：TU478[建筑科学—结构工程]