High Pressure Seepage Deformation Test of Rock Mass with Crush-caused Fractured Zone

There was a large developed scale of crush-caused fractured zone in the gravity dam foundation of hydropower station engineering.The actual hydraulic condition was simulated to study the failure model and level of rock mass with crush-caused fractured zone by the in situ high pressure seepage deformation test,in which the seepage gradient,including the critical gradient and the failure gradient,and the failure model were obtained.