Cast-in-place pipe gallery horizontal construction joint water stopping structure and construction method thereof

Abstract

The invention relates to a cast-in-place pipe gallery horizontal construction joint water stopping structure. The cast-in-place pipe gallery horizontal construction joint water stopping structure comprises multiple water stopping units which are sequentially arranged in the length direction of a pipe gallery; each water stopping unit comprises a galvanized water stopping steel plate, screw cushionblocks and steel bars; the upper end and the lower end of each galvanized water stopping steel plate are bent, therefore, a notch is formed in each galvanized water stopping steel plate, and each notch serving as an upstream face faces outwards; and each galvanized water stopping steel plate is provided with multiple groups of fixing frames in the length direction, each group of the fixing framescomprise three groups of the screw cushion blocks and the steel bars, the screw cushion blocks are fixed to the downstream faces of the galvanized water stopping steel plates, the first one is fixedto the upper-end bent portion of each galvanized water stopping steel plate, the second one is fixed to the middle of each galvanized water stopping steel plate, the third one is fixed to the lower-end bent portion of each galvanized water stopping steel plate, the steel bars are bent in a right angle shape, the ends of the horizontal sections are fixed to the screw cushion blocks, and the vertical sections are fixed to the inner wall steel bars of the cast-in-place pipe gallery. The invention further relates to a construction method of the cast-in-place pipe gallery horizontal construction joint water stopping structure. The cast-in-place pipe gallery horizontal construction joint water stopping structure is extremely high in fastness, cannot damage base metal, is easy to install and belongs to the technical field of building construction.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a water-stop structure for horizontal construction joints of a cast-in-place pipe gallery and a construction method thereof. Background technique [0002] With the development of engineering technology of cast-in-place pipe gallery, the technical requirements for waterproof construction of pipe gallery buried in groundwater level are also getting higher and higher. In the construction process of the cast-in-place pipe gallery structure, the galvanized water-stop steel plate is generally used as a gap waterproof treatment measure for the joints of the concrete poured first and then poured. The current technology of galvanized steel waterstop is mature and can play a good waterstop effect. But the installation of galvanized water-stop steel plate is very troublesome. The traditional method is to directly weld and fix short steel bars on the water-facing and back-wate...

AI Technical Summary

Problems solved by technology

But the installation of galvanized water-stop steel plate is very troublesome. The traditional method is to directly weld and fix short steel bars on the water-facing and back-water surfaces of galvanized water-stop steel plate, and weld them to the vertical steel bars on the inner and outer walls. It is easy to be too heavy when spot welding Damage the steel plate, or even weld through the 3mm thick galvanized water-stop steel plate. If it is too light, it will not have a good fixing effect, resulting in weak welding parts, resulting in the fixing quality not meeting the construction technical requirements, and it is easy to cause galvanized water-stop during the concrete pouring process. Steel plate fracture or position deviation

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