摘要
上软下硬复合地层隧道施工安全所面临的影响风险因素复杂繁多,具有模糊性和不确定性,使隧道施工安全得不到保证。结合现有工程实际,在影响上软下硬复合地层隧道施工安全的众多影响因素中,分层次地进行详细剖析,建立上软下硬复合地层隧道施工安全风险评价体系。用熵值赋权法计算确定各层次风险因素的影响权重,运用多级模糊评价理论对各影响因素进行逐级逐层综合评价,直至得出对上软下硬复合地层隧道施工的风险评级,计算结果符合工程实际,对类似隧道工程施工具有指导意义。
The risk factors of tunnel construction safety are complex and numerous in upper-soft and lower-hard composite stratum,with ambiguity and uncertainty,so that the safety of tunnel construction cannot be guaranteed.In this paper,based on a real project and among the numerous influencing factors that affect the safety of the tunnel construction in the upper-soft and lower hard stratum,a detailed analysis was carried out in layers to establish a safety risk assessment system for the tunnel construction in composite stratum.The entropy method was used to determine the weight of the risk factors at various levels,and the multi-level fuzzy evaluation theory was used to carry out a comprehensive evaluation of each influencing factor step by step until the risk rating for the tunnel construction in composite stratum was obtained.The calculated results agree with the engineering practices.In addition,the findings made are instructive for similar tunnel construction projects.
作者
吴波
陈辉浩
黄惟
WU Bo;CHEN Huihao;HUANG Wei(College of Civil Engineering and Architecture,Guangxi University,Nanning 530004,China;Key Laboratory of Disaster Prevention and Structural Safety of Ministry of Education,Nanning 530004,China)
出处
《铁道科学与工程学报》
CAS
CSCD
北大核心
2021年第4期1056-1063,共8页
Journal of Railway Science and Engineering
基金
国家自然科学基金面上资助项目(51678164)
广西自然科学基金资助项目(2018GXNSFDA138009)
广西科技计划资助项目(桂科AD18126011)。
关键词
上软下硬复合地层
施工安全
熵权法
模糊综合评价
风险评估
upper-soft and lower-hard composite stratum
construction safety
entropy method
fuzzy comprehensive evaluation
risk assessment
