Concrete cover plate waterproof structure of underground pipe gallery hoisting opening

The concrete cover plate waterproof structure of the underground pipe gallery hoisting opening comprises a concrete cover plate, the concrete cover plate is located above the hoisting opening, side walls are arranged on the two sides of the hoisting opening, grooves are formed in the tops of the side walls, and the two ends of the concrete cover plate are arranged in the grooves respectively. A waterproof device is arranged above the concrete cover plate; the waterproof device comprises a first waterproof coiled material, a second waterproof coiled material and an asphalt felt isolation layer, the first waterproof coiled material is adhered to the bottom of the asphalt felt isolation layer, the first waterproof coiled material covers the concrete cover plate, the side part of the first waterproof coiled material is turned down to the outer wall of the side wall, and a fine aggregate concrete protection layer is arranged on the asphalt felt isolation layer; the second waterproof coiled materials are arranged o