简述了某高速公路隧道二次衬砌裂缝的特点，结合该隧道水文地质情况，分析了隧道衬砌裂缝形成的原因，探讨了不同类型裂缝对隧道结构安全的影响，并提出了合理的裂缝整治方案，保证了隧道衬砌结构的稳定性。%With an introduction of secondary masonry cracking features of the highway tunnel,combining with the tunnel hydrological conditions, the paper analyzes the tunnel masonry cracking causes,explores the impact of various cracks upon tunnel structure safety,and finally puts forward rational cracks processing scheme,so as to guarantee the tunnel masonry structure stable.
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