Construction method of waterproof coating

Abstract

The invention discloses a construction method of a waterproof coating, relates to the technical field of building materials, and aims to solve the problem of poor overall structure quality caused by uneven spraying of the waterproof coating on arch feet during construction. According to the technical scheme, the construction method comprises the following steps of step 1, cleaning the peripheral wall of a tubular tunnel through a water gun, and leveling the surface; step 2, spraying an adhesive on the peripheral wall of the tubular tunnel on pit banks by using a spraying device, and conductingspraying twice in the length direction of the tubular tunnel from front to back and then from back to front at the arch waist to enable the adhesive to slide to the arch foot along the radian of theperipheral wall of the tubular tunnel; and 3, utilizing the spraying device for spraying a lubricating agent to the peripheral wall of the tubular tunnel to form a lubricating layer. According to theinvention, the peripheral wall of the tubular tunnel is coated with a bonding layer and the lubricating layer, and the waterproof coating can slide to the bottom along the radian of the peripheral wall during coating of the waterproof coating, so that the portion from the arch waist to the arch foot can be uniformly coated with the waterproof coating.

Description

technical field [0001] The invention relates to the technical field of building materials, more specifically, it relates to a construction method of waterproof paint. Background technique [0002] In current engineering, the surface of most engineering structures needs to be coated with a waterproof coating to prevent water vapor from entering the engineering structure and causing damage to the structure. Tunnels are engineering buildings buried in the ground and are a form of human use of underground space. . Tunnels can be divided into traffic tunnels, hydraulic tunnels, municipal tunnels, mine tunnels, and military tunnels. [0003] Existing underwater tunnels generally adopt the open cut method, drain water, dig deep pits, and then construct to form a large tubular tunnel, and finally fill the pits, such as figure 1 As shown, it includes a deep pit, a pit bank, and a tubular tunnel arranged in the deep pit. The tubular tunnel forms an arched structure with the inner wa...

AI Technical Summary

Problems solved by technology

[0003] Existing underwater tunnels generally adopt the open cut method, drain water, dig deep pits, and then construct to form a large tubular tunnel, and finally fill the pits, such as figure 1 As shown, it includes a deep pit, a pit bank, and a tubular tunnel arranged in the deep pit. The tubular tunnel forms an arched structure with the inner wall of the deep pit. The arched structure includes a vault, an arch waist, and an arch foot. Entering the engineering structure will cause damage to the structure. Before filling the pit, it is necessary to coat the outer wall of the tubular tunnel with a waterproof coating. The arch structure formed by the tubular tunnel and the bottom of the pit is coated with the outer wall between the arch waist and the arch foot. When spraying, because it is arc-shaped and forms an included angle with the bottom of the pit, it cannot be sprayed evenly during spraying, and the staff need to enter the pit. Because the pit is very deep, it is not safe and inconvenient for the staff to construct in the pit.

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