Tunnel water leakage and sand leakage test device capable of changing water stop defect position

The utility model discloses a tunnel water leakage and sand leakage test device capable of changing a water stop defect position. The tunnel water leakage and sand leakage test device comprises a rainfall module, a leakage generation module, a collection module and a recording module, the rainfall module is installed above the leakage generation module, a profile steel bearing support is arranged below the leakage generation module, a collection module is arranged under the leakage generation module, and a recording module is arranged on one side of the leakage generation module. The experimental device disclosed by the utility model is simple and clear, can be used for conveniently observing the disturbance of shield activities on the whole soil body and the settlement deformation condition of the soil body, and is beneficial for the recording module to record the change conditions of parameters such as water leakage amount, sand leakage amount, leakage time and the like in the test process; the method has p