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岩溶区隧道涌水塌方与地质条件关系密切,严重威胁隧道施工安全。为了研究岩溶区隧道涌水塌方成因机制,本文结合某隧道的地质情况和发生的涌水塌方特征,采用地质勘探、理论分析和数值模拟的方法分析了隧道涌水塌方成因机制,揭示了溶腔破碎带对涌水塌方形成的作用;最后结合隧道塌方现场勘察情况和理论分析结论,提出了涌水塌方的处治方案,成果可为类似地质条件下的隧道施工提供借鉴。
Karst tunnel gushing water collapse and geological conditions are closely related to the serious threat to the tunnel construction safety. In order to study the causation mechanism of tunnel collapse in karst area, this paper, based on the geological conditions of a tunnel and the characteristics of gushing water collapse, analyzes the causation mechanism of tunnel collapse by geological exploration, theoretical analysis and numerical simulation, Finally, combined with the scene of the tunnel collapse and the theoretical analysis, this paper puts forward the treatment scheme of water flow collapse, and the results can provide reference for tunnel construction under similar geological conditions.