基于流固耦合作用隧道穿越富水断层带围岩稳定性研究  

Research on the Stability of Surrounding Rock in Tunnel Crossing Water-rich Fault Zones Based on Fluid-solid Coupling

作　　者：岳小兵 Yue Xiaobing(Shanxi Middle Yellow River Water Group Co.,Ltd.,Taiyuan 030000,Shanxi)

机构地区：[1]山西中部引黄水务集团有限公司,山西太原030000

出　　处：《陕西水利》2025年第4期115-118,126,共5页Shaanxi Water Resources

摘　　要：针对输水隧洞穿越断层破碎带发生的塌方涌水事故,结合现场地质情况和塌方涌水特征,采用地质勘察、理论分析和数值模拟相结合的研究方法分析隧洞塌方涌水机制及变形破坏原因,提出相应的工程对策。结果显示,实施处治措施后,隧道拱顶下沉量、两腰收敛量分别达79.3 mm、60.7 mm,围岩变形基本稳定,无涌水、渗漏水现象的发生,可保证隧道施工安全。研究结果可为类似条件下的隧洞修建提供参考。In view of the collapse and water inrush accidents that occur when the water conveyance tunnel crosses the fault fracture zone,combined with the on-site geological conditions and the characteristics of collapse and water inrush,a research method combining geological survey,theoretical analysis and numerical simulation is adopted to analyze the mechanism of tunnel collapse and water inrush and the causes of deformation and failure,and corresponding engineering countermeasures are proposed.The results show that after the implementation of treatment measures,the settlement of the tunnel crown and the convergence of the two sides reach 79.3 mm and 60.7 mm respectively.The deformation of the surrounding rock is basically stable,and there is no occurrence of water inrush or water leakage,which can ensure the safety of tunnel construction.The research results can provide a reference for the construction of tunnels under similar conditions.

关 键 词：断层破碎带 塌方涌水 流固耦合 处治措施 

分 类 号：TU47[建筑科学—结构工程]