基于灰色关联故障树的盾构隧道施工风险研究

盾构施工存在建设工期长、安全管理复杂、安全风险因素模糊多变等问题,目前又缺少完整的风险管理和风险评估系统,从而导致安全事故高频率出现。为保证盾构法隧道施工安全,本文用故障树法对盾构隧道的施工风险进行分析,层层找出盾构隧道事故发生的基本因素,并用灰色关联法对其进行关联分析;按照基本事件的关联度大小进行排序,找出需要重视和规避的基本事件并提出预防和处理方案,以保证施工安全进行。

Research on Construction Risk of Shield Tunnel Based on Grey Correlation Fault Tree

In shield construction,there are many problems,such as long construction period,complex safety management,fuzay and changeable safety risk factors.Currently,there is a lack of complete risk manuagement and risk assessment system,which leads to high frequency of salety accidents.In this paper,to ensure the safety of shield tunnel construction,the fault tree method was used to analyze the construction risk of shield tunnel,and the basie factors of shield tunnel aceident were found layer by layer.The basic events of fault tree were analyzed by gray correlation method.According to the correlation degree,the basic events were sorted,the basic events that need to be paid attention to and avoided were found out,and the prevention and treatment scheme was proposed,so as to ensure safety of construction.