Method for application of concrete work expansion joint vertical water sealing structure fixing element

Abstract

The invention relates to an underground (underwater) building waterproof device, in particular to a method for application of a concrete work expansion joint vertical water sealing structure fixing element. The fixing element comprises a U-shaped embedded part formed by an embedded part body A and an embedded part body B, wherein the embedded part is provided with a connecting pipe, the connecting pipe is provided with internal threads so as to be in threaded connection with a connecting piece, flat iron is fixed to the connecting piece in an integrated mode with nuts to be used for fixing a vertical water sealing steel channel at the position of a concrete fracture surface, pitch is injected into the steel channel, and the connecting piece and the flat iron are disassembled after cooling and maintained, stored and reused. By the adoption of the method, the problem, appearing in a water conservancy project, of water seepage caused by differential settlement or diastrophism of a stratum can be solved, labor can be saved, construction time can be shortened, and resources can be saved.

Description

technical field [0001] The invention relates to an underground (underwater) building waterproof device, in particular to an application method of a vertical water-stop structure fixing part of a concrete engineering expansion joint. Background technique [0002] In existing concrete structures, such as retaining dams, reservoirs, subways, culverts, sluices, tunnels and other underground projects, due to the inability to pour continuously or the deformation of the foundation settlement (earthquake), or the concrete caused by temperature changes Due to thermal expansion and contraction of components, deformation joints and construction joints are often left during pouring. These gaps must take anti-leakage measures to prevent external water or groundwater from leaking into the structural space. Concrete grooves are set between the concrete and the second-stage concrete, and soft asphalt and copper sheets or rubber waterstops are installed in the grooves. However, this method r...

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Problems solved by technology

[0002] In existing concrete structures, such as retaining dams, reservoirs, subways, culverts, sluices, tunnels and other underground projects, due to the inability to pour continuously or the deformation of the foundation settlement (earthquake), or the concrete caused by temperature changes Due to thermal expansion and contraction of components, deformation joints and construction joints are often left during pouring. These gaps must take anti-leakage measures to prevent external water or groundwater from leaking into the structural space. Concrete grooves are set between the concrete and the second-stage concrete, and soft asphalt and copper sheets or rubber waterstops are installed in the grooves. However, this method requires prefabricated concrete grooves. The outer 3 sides are chiselled, which will prolong the construction period and increase labor. At the same time, since the length (height) of each concrete groove is generally only 50-100cm, the expansion gap must be composed of multiple concrete grooves, so multiple horizontal lines will be generated. The cracks and the irregular deformation of multiple concrete grooves will cause the leakage of soft asphalt in the subsequent pouring, and it is difficult to clean up; it is very effective to use channel steel instead of concrete grooves, but due to the pre-embedded fixings and connections The parts are designed as one piece, and the connecting parts should protrude out of the section during pouring, so it is difficult to construct the first-stage concrete section, and the connecting parts must be cut off along the section after pouring asphalt, resulting in waste

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