摘要
为了对近海砂性土层地铁深基坑进行安全风险评估,建立了地铁车站施工安全风险评估体系,运用模糊层次分析法确定基坑施工风险因素指标的权重,在此基础上,结合灰色关联度法,计算出风险评估系统中总风险层与第一层次因素的关联度,以及第一层次因素与其对应第二层次因素的关联度.实例分析结果表明,基于模糊层次分析法的灰色关联度评价方法能有效降低主观因素的影响,且该方法的运用不受样本量大小的影响,数学处理计算过程简单,为深基坑安全风险评价与风险管理提供参考.
In order to evaluate the safety risk of deep foundation pit of Metro in offshore sandy soil layer,the risk assessment system of a station is established.In this paper,the weight of risk factors index of foundation pit construction is determined by the method of fuzzy analytic hierarchy process.On this basis,combined with grey relational degree analysis,the relational degree of total risk layer and first layer in the risk assessment system is calculated,and the relational degree of first layer and its corresponding second layer is also calculated.The results of case analysis show that the grey relational degree analysis based on fuzzy analytic hierarchy process can effectively reduce the influence of subjective factors.In addition,the application of this method is not affected by the samples size,and the mathematical process is simple,which can provide reference for the safety risk assessment and risk management of deep foundation pits.
作者
吴波
吴昱芳
黄惟
罗建波
路明
WU Bo;WU Yu-fang;HUANG Wei;LUO Jian-bo;LU Ming(College of Civil Engineering and Architecture.Guangxi University,Key laboratory of Disaster Prevention and Structural Safety of the Ministry of Education,Nanning 530004,China;SINOHYDRO BUREAU 1 CO.,LTD.,Changchun 130033,China)
出处
《数学的实践与认识》
北大核心
2020年第2期179-187,共9页
Mathematics in Practice and Theory
基金
国家自然基金面上项目(51478118,51678164)
广西自然科学基金项目(2018GXNSFDA138009)
广西科技计划项目(AD18126011)
广西特聘专家专项资金(20161103).
关键词
模糊层次分析法
灰色关联分析
风险评估
深基坑
fuzzy analytic hierarchy process
grey relational analysis
risk assessment
deep foundation pit
