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隧道施工会破坏地质岩层结构的稳定性,致使覆盖层的围岩稳定性变差,引起隧道坍塌。所以为了避免隧道坍塌造成施工事故,施工中的力学效应就变得极为讲究。尤其是在不同地质条件下,对于浅埋偏压小净距隧道的施工力学也颇为不同。本文围绕了隧道偏影响因素和不同地质条件下隧道施工的力学特性进行了简要分析,希望对隧道施工的安全防护工作有所帮助。
Tunnel construction will destroy the stability of geological strata structure, resulting in the stability of the surrounding rock deterioration of the cover, causing the tunnel collapse. Therefore, in order to avoid construction accidents caused by tunnel collapse, the mechanical effects in construction become extremely stressful. Especially in different geological conditions, the construction mechanics of tunnels with shallow bias and small spacing is quite different. This paper focuses on the analysis of partial drift of tunnel and the mechanical characteristics of tunnel under different geological conditions, hoping to be helpful for the safety protection of tunnel construction.