TBM pressure injection type concrete test device

The utility model relates to a TBM pressure injection type concrete test device which comprises an outer shell, an environment simulation layer, an imitation shield body, a plurality of shield body stretching oil cylinders, a main body supporting structure, a plurality of steel formworks, a plurality of pressure injection ring sliding oil cylinders, a grouting head assembly and a sealing assembly.A test space is formed in the outer shell; the environment simulation layer is arranged on the inner side of the outer shell, and a moving space is formed in the environment simulation layer; the imitation shield body is movably arranged in the moving space; the shield body stretching oil cylinder is arranged outside the test space and is connected to the front end of the imitation shield body; the shield body stretching oil cylinder and the outer shell are installed on the main body supporting structure. The steel formworks are arranged in the moving space in a spliced mode. The pressure injection ring sliding oil c