Device for preventing leakage of basement bottom plate post-pouring belt and construction method thereof

The invention discloses a device for preventing leakage of a basement bottom plate post-pouring belt and a construction method thereof, wherein the device comprises a base layer, a steel bar framework, a steel bar device, a protection device, a first telescopic layer, a telescopic device, a waterproof device, a bottom plate layer and a water stopping device, wherein the steel bar framework is arranged in one side of the base layer; the steel bar framework is fixedly in connection with the base layer; the protection device is arranged at the top of the steel bar framework; the protection deviceis fixedly in connection with the base layer; the first telescopic layer is fixed at the top of the protection device; the water stopping device is provided in the first telescopic layer; the water stopping device is fixedly in connection with the first telescopic layer; according to the device for preventing leakage of the basement bottom plate post-pouring belt and the construction method thereof, through the joint act