Shearing strength test device for researching rock mass structural surface under wading condition

The utility model discloses a test device for researching the shear strength of a rock mass structural surface under a wading condition. The device comprises an upper sample box and a lower sample box, a drain hole is formed in the bottom of the lower sample box, a water baffle is installed around the top of the lower sample box, a circle of water pipe surrounds the inner wall of the water baffle,a plurality of spray holes are evenly distributed in the water pipe, and a water inlet is further formed in the water pipe; a normal stress applying device is arranged at the top of the upper samplebox, and a stress sensor is mounted on the normal stress applying device; shear stress applying devices are arranged on the two sides of the outer wall of the lower sample box, and a horizontal displacement and stress sensor is arranged on each shear stress applying device. When a rock mass structural plane shear test is carried out in an infiltration state, a rock sample soaked in water can be continuously humidified by s