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

A technology of horizontal construction joints and cast-in-place pipe gallery, applied in underwater structures, infrastructure engineering, water conservancy engineering, etc. The installation of the water-stop steel plate is troublesome and other problems, to achieve the effect of high firmness, high firmness and simple structure

CN110952594APending Publication Date: 2020-04-03广州市市政工程机械施工有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2020-04-03

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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.
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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...

Examples

Embodiment Construction

[0032] The present invention will be described in further detail below in conjunction with specific embodiments.

[0033] The water-stopping structure of the horizontal construction joints of the cast-in-place pipe gallery is arranged at the horizontal construction joints of the cast-in-place pipe gallery, and includes a plurality of water-stop units sequentially arranged along the length direction of the pipe gallery. Each water-stop unit includes galvanized water-stop steel plates, screw spacers, and steel bars.

[0034] The midline position of the galvanized water-stop steel plate is set at the cast-in-place horizontal construction joint, the notch of the galvanized water-stop steel plate is set facing the upstream surface, and the welding between the two galvanized water-stop steel plates of adjacent water-stop units should be full and double-sided. For surface welding, the overlap of galvanized water-stop steel plates is not less than 50mm; the screw spacer is to avoid da...