A kind of vertical water-stop structure of water conservancy project and construction method thereof

Abstract

The invention discloses a vertical water stop structure for a water conservancy project and a construction method. The water stop structure comprises a red copper sheet, a channel steel groove and a fixing piece, wherein the red copper sheet is L-shaped, one end of the L shape is fixed in concrete, the other end of the L shape is inserted into the channel steel groove, and the channel steel grooveis in fastening connection with the fixing piece through a bolt; the channel steel groove is a splicing groove; the surface of the fixing piece is subjected to corrosion prevention treatment; corrosion prevention comprises the following steps that electrophoresis coating treatment is carried out on the surface of the fixing piece in advance or the surface of the fixing piece is wound with a viscoelastic body anti-corrosion material; the construction method of the vertical water stop structure for the water conservancy project comprises the following steps that S1, primary concrete is poured;S2, asphalt felt is laid; S3, the channel steel groove is formed; S4, asphalt is poured; and S5, secondary concrete is poured. According to the vertical water stop structure for the water conservancyproject, the splicing channel steel groove is formed, the internally-arranged fixing piece is arranged, and an corrosion prevention layer is arranged on the surface of the fixing piece, so that the fit of channel steel and the concrete is improved, the freezing strength is reduced, and the durability of the water stop structure and the concrete is improved.

Description

technical field [0001] The invention relates to the field of water conservancy engineering, in particular to a vertical water stop structure of a water conservancy project and a construction method thereof. 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 requires prefabricated conc...

AI Technical Summary

Problems solved by technology

[0005] Compared with the traditional prefabricated concrete trough, although the channel steel asphalt trough can alleviate the leakage caused by the uneven settlement of the ground or the thermal expansion and contraction of the concrete components caused by the temperature change to a certain extent, the existing technology adopts Channel steel asphalt trough, the channel steel has poor adhesion to the first-stage and second-stage concrete, and it is very easy to cause leakage due to natural factors such as opening displacement and freezing, which cannot guarantee the daily operation safety of water conservancy projects in cold regions

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