The utility model discloses an
underwater concrete pouring device for simulating a large
water depth environment in the technical field of
underwater concrete construction, which comprises a container
assembly, a mold
assembly arranged in the container
assembly, a guide
pipe connected to the middle of the top of the container assembly, a support arranged at the top of the container assembly, and a floating ball arranged in the guide
pipe. The right side of the top of the container assembly is connected with an air
pipe, and the end, away from the container assembly, of the air pipe is provided with a
vacuum pump. The container assembly, the guide pipe, the floating ball, the mold assembly, the air pipe, the
vacuum pump, the discharging hopper and the lifting
rope are arranged in a matched mode, the
pressure difference in the
underwater pouring process is created in the mode that the
vacuum pump sucks negative pressure, and underwater concrete pouring under the actual working condition is conducted by simulating the
pressure difference under the large
water depth condition. A test basis is provided for selecting a concrete
mix proportion test under a real pouring condition, and the optimization of a concrete formula is facilitated.