隧道施工与其他工程相比,影响其安全的因素复杂多样,对隧道施工风险进行安全评价一直备受关注。本文以广东省某隧道为例,采用危险指数法估算隧道风险等级,并在此基础上选取危险单元进行监控量测以及人工巡查,通过监控量测位移管理进行控制及预警,实现从风险评估、监控量测和人工巡查三方面综合提高隧道施工的安全性。
Compared with other projects, the factors affecting the safety of tunnel construction are complex and diverse,the safety risk assessment of the tunnel constructionhas always been of concern.In this paper, based on a tunnel of Guangdong as an example,using the risk index method to estimate the tunnel construction risk level,then,selecting the risk unit for monitoring measurement and artificial patrolling on this basis,controlling and early warning by monitoring displacement management.From the three aspects of risk assessment, monitoring measurement and manual inspection to improve the safety of tunnel construction.