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目前,对隧道运营期的安全评价很少利用监测数据,对其结构安全性的评价较少,且带有很大的主观性。隧道的裂缝大多出现在隧道建成的早期,有的甚至在隧道修建的过程就出现了大量裂缝,而在建后5年出现的机率较少。隧道裂缝是隧道衬砌常见病害之一,如何合理地利用监测数据,客观评价隧道运营期安全,一直是岩体工程技术界的研究热点。本文详细论述了公路隧道衬砌裂缝的跟踪监测,并进行了分析。
At present, the safety evaluation of the tunnel operation period seldom uses the monitoring data, evaluates its structural safety less and has a great subjectivity. Most of the cracks in the tunnel appeared early in the tunnel construction, and some even appeared a lot of cracks in the process of tunnel construction, and less likely to occur after 5 years of construction. Tunnel cracks are one of the common diseases of tunnel lining. How to make reasonable use of monitoring data and objectively evaluate the safety of tunnel operation has always been a hot research topic in rock mass engineering and technology. This paper discusses in detail the tracking and monitoring of lining cracks in highway tunnels and analyzes them.