当隧道穿越富水断层破碎带区域时，在一系列施工扰动下极易产生突水事故。为了研究断层破碎带宽度、倾角及水压对隧道涌水量的影响，以英山隧洞为工程背景，进行现场测试，并设计正交试验方案开展多因素条件下的破碎带流-固耦合数值模拟，分析断层破碎带宽度、倾角及水压对隧道涌水量的敏感性。研究结果表明：隧道涌水量随断层破碎带厚度、倾角及水压的增大而增加，影响隧道涌水量因素主次顺序为断层破碎带水压、倾角及宽度；数值模拟结果较好地与现场监测结果相吻合。研究结果可为富水隧道涌水量的预测及防治技术提供理论参考。

When a tunnel crosses a water-rich fault fracture zone, it is very easy to produce a water surge accident under a series of construction disturbances. In order to study the effects of fault zone width, dip angle and water pressure on tunnel water inflow, Yingshan tunnel was used as the engineering background, field tests were carried out, and an orthogonal test scheme was designed to carry out numerical simulation of coupled flow-solidity in the fault zone under multifactorial conditions, so as to analyze the sensitivity of the fault zone width, dip angle and water pressure on the water inflow of the tunnel. The results show that the tunnel water inflow increases with the increase of fault zone thickness, dip angle and water pressure, and the factors affecting the tunnel water inflow are water pressure, dip angle and width of the fault zone. The numerical simulation results are in good agreement with the field monitoring results. The results can provide theoretical references for the prediction of water influx in water-rich tunnels and the prevention and control technology.