Hydraulic device for simulating deformation of rock tunnel

The utility model discloses a hydraulic device for simulating deformation of a rock tunnel, which comprises a cylinder model device, an inner tube is rotated to simulate and change a stratum structure, stress concentration is eliminated through a cylinder to simulate the influence of creep deformation of tunnel surrounding rock on convergence deformation of the tunnel, and the cylinder model device comprises a support for providing stable force, an inner pipe on the support is sleeved with an outer pipe and then fixed to the support, stratum simulation materials laid layer by layer and tunnel molds placed according to the stratum dip angle of 45 degrees are arranged in the inner pipe, a hydraulic valve is arranged on the upper portion of the outer pipe and connected with a hydraulic pump through a guide pipe, a hydraulic pressure gauge is installed on the guide pipe, and the hydraulic pump provides hydraulic pressure changes. And the upper part of the outer pipe is respectively provided with a liquid inlet an