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Connecting structure and connecting method for expansion joint water-stop belt of hydraulic concrete member

A technology of hydraulic concrete and connection method, which is applied in water conservancy projects, sea area projects, construction, etc., can solve the problems of high material and labor costs, time-consuming and labor-intensive problems, increase the ability to adapt to changes in joints, reduce stress concentration, and improve The effect of water pressure resistance

Inactive Publication Date: 2014-09-24
BEIJING IWHR KHL +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The common measure to solve this problem at home and abroad is to remove and replace the entire waterstop, which is time-consuming and laborious, and the material and labor costs are too high

Method used

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  • Connecting structure and connecting method for expansion joint water-stop belt of hydraulic concrete member
  • Connecting structure and connecting method for expansion joint water-stop belt of hydraulic concrete member
  • Connecting structure and connecting method for expansion joint water-stop belt of hydraulic concrete member

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Embodiment Construction

[0042] like Figure 2-Figure 4 As shown, when the water stop 2 pre-buried in the concrete on both sides of the expansion joint 5 in the hydraulic concrete member 4 is partially damaged, the concrete from the damaged part to the outer surface is chiseled first to form a rectangular groove 6, so that the stop The end 21 of the water belt 2 is exposed (or by cutting off the damaged part to form a relatively neat end 21 on both sides, which is a well-known method here, so it will not be described in detail), and at the same time pay attention to protect the remaining undamaged water stop 2, so as to avoid Damaged by concrete ballast. The expansion joint 5 between the ends 21 of the two waterstops 2 is filled with a sealing filling layer 1 composed of a flexible caulking material (see figure 2 and image 3 ), wherein the height of the sealing filling layer 1 may slightly protrude from the groove surfaces on both sides of the expansion joint 5 , and it is preferable to close the ...

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Abstract

The invention provides a connecting structure and a connecting method for an expansion joint water-stop belt of a hydraulic concrete member. The connecting structure comprises a protection layer and a sealing filling layer, wherein an expansion joint at the broken part of the water-stop belt is filled with the sealing filling layer; the protection layer coats the sealing filling layer and the outer side of the end of the broken part of the water-stop belt, and is combined with the end. A seam on the broken part is preferably enclosed by the sealing filling layer, so that the protection layer can be supported as required. The protection layer can be molded directly by coating a flexible film material on site in order to be tightly combined with the end of the water-stop belt. An activating agent and a bonding agent are preferably coated between the protection layer and the water-stop belt. The connection problem at the broken part of the expansion joint water-stop belt of the hydraulic concrete member can be solved. Compared with the process of replacing the water-stop belt by chiseling in the conventional way, the connecting method is simple and feasible; moreover, the water-stop belt has perfect performance after being connected.

Description

technical field [0001] The invention relates to a repairing or connecting structure for a waterstop of an expansion joint of a hydraulic concrete component, and a corresponding connecting method. Background technique [0002] Expansion joints are usually provided on the concrete elements of hydraulic structures such as hydropower stations, water channels, water tunnels and aqueducts. The expansion joint refers to the gap set in the structure to adapt to the influence of the expansion and contraction deformation of the material on the structure. The common measures to solve the anti-seepage of expansion joints at home and abroad are to pour the two wings of the rubber waterstop or plastic waterstop into the concrete on both sides of the expansion joint, or use flat steel and bolts to seal the rubber waterstop or plastic waterstop. The tape is screwed across the seam on both sides of the seam. like figure 1 As shown, the two wings of the waterstop 2 are respectively poured ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02B3/16
Inventor 孙志恒何旭升马锋玲鲍志强李敬玮李蓉李萌
Owner BEIJING IWHR KHL
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