Concrete panel joint surface flexible water stopping anti-icing structure and mounting method

Abstract

The invention discloses a concrete panel joint surface flexible water stopping anti-icing structure. The concrete panel joint surface flexible water stopping anti-icing structure comprises concrete panels, an elastic supporting piece, a compressible plastic caulking material and flexible anti-seepage coatings; the two adjacent concrete panels form a V-shaped groove; the elastic supporting piece isclamped at the bottom of the V-shaped groove; the compressible plastic caulking material is embedded in the V-shaped groove; and the flexible anti-seepage coatings are arranged on the two adjacent concrete panels. A mounting method of the concrete panel joint surface flexible water stopping anti-icing structure comprises the steps of polishing the upper surfaces of the concrete panels to expose coarse aggregates, clamping the elastic supporting piece in the V-shaped groove, putting the compressible plastic caulking material into the V-shaped groove in a layered manner, coating an interface agent to the upper surfaces of the adjacent concrete panels, and laying the flexible anti-seepage coatings. The concrete panel joint surface flexible water stopping anti-icing structure has the advantages that the construction is good, the anti-seepage capability is good, the durability is high, and the concrete panel joint surface flexible water stopping anti-icing structure is suitable for new projects in severe cold areas.

Description

technical field [0001] The invention relates to the technical field of building structures, in particular to a flexible water-tight and anti-icing structure on the joint surface of concrete panels and an installation method. Background technique [0002] Concrete face rockfill dam has the advantages of low investment, short construction period, good safety, convenient construction, strong adaptability, etc., and has been widely promoted and applied at home and abroad. However, in the anti-seepage system of concrete slabs, the watertightness of the joints of concrete slab dams is still a weak link. At present, flexible waterproof coiled materials are generally used as protective cover plates to stop water at the joints of concrete face dams. The commonly used protective cover plate materials include EPDM boards, rubber plates, and composite rubber plates, etc., and through expansion bolts Fastened to both sides of the concrete panel joint. However, the above-mentioned ancho...

AI Technical Summary

Problems solved by technology

However, the above-mentioned anchored water-stop structure has the following disadvantages: first, the flatness of the surface of the concrete panel is difficult to control, and the flatness error is usually at least 1 cm, the distance between the expansion bolts is usually at least 15 cm, and there is a gap between the protective cover plate and the concrete panel Second, the joints of concrete panels are tortuous and changeable, and there are several T-shaped or L-shaped knuckles. It is difficult to ensure the quality of joints and angle steel installations during the construction process. The existence of gaps and defects will increase reservoir water seepage Third, the protective cover plate is fixed on the concrete surface by bolts and angle steel. The construction process of fastening the bolts is cumbersome, the installation is difficult, and it is difficult to guarantee the quality; In addition, the steel plate or angle iron bead has poor anti-corrosion ability, and it is easy to rust in the water and the water level change area for a long time, and the durability is poor

However, for new face dams, the initial deformation of the face joints is relatively large, and the flat-covered flexible water-stop structure is not suitable for the large deformation of the face face joints.

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