Waterproof structure for pipe gallery lightning protection grounding piercing bottom plate waterproof coiled material

Abstract

The utility model provides a waterproof structure for a pipe gallery lightning protection grounding piercing bottom plate waterproof coiled material, and relates to the technical field of waterproof structures, the waterproof structure comprises a plugging layer, a waterproof coating layer and a plurality of water blocking plates, the plugging layer is used for plugging a piercing seam of a full-length grounding body on a bottom plate, the waterproof coating layer is arranged between the waterproof coiled material and the bottom plate, and the water blocking plates are arranged between the waterproof coiled material and the bottom plate. And the plurality of water blocking plates are distributed at the two outer side ends of the piercing seam. The waterproof performance of the structure is effectively guaranteed, and construction operation is simple, convenient and economical.

Description

Technical Field

[0001] The utility model relates to the technical field of waterproof structures, in particular to a waterproof structure used for a pipe gallery where lightning protection grounding pierces a bottom plate waterproof coiled material. Background Art

[0002] In modern society, power and communication equipment need lightning protection and grounding to ensure the normal operation of equipment and the safety of personnel. In the comprehensive pipeline corridor project aimed at expanding the urban underground space, lightning protection and grounding are also an important infrastructure, which can effectively protect buildings, equipment and personnel from lightning damage.

[0003] During the construction of underground urban integrated pipeline corridor projects, the construction of lightning protection grounding electrodes requires piercing the waterproof membrane of the corridor bottom plate, which will inevitably cause damage to the waterproof layer structure, and then cause steel corrosion and concrete corrosion, damaging the durability of the structure. Summary of the invention

[0004] In view of the above-mentioned prior art, in order to ensure that the lines in the pipe gallery are not damaged by water vapor, the utility model proposes a waterproof structure for the lightning protection grounding of the pipe gallery that pierces the bottom plate waterproof membrane.

[0005] The utility model provides a waterproof structure for use in a pipe gallery where lightning protection grounding pierces a bottom plate waterproof coiled material, comprising a blocking layer, a waterproof coating layer and a plurality of water blocking plates, wherein the blocking layer is used to block the piercing seam of a through-length grounding body on the bottom plate, the waterproof coating layer is arranged between the waterproof coiled material and the bottom plate, and the plurality of water blocking plates are distributed at two outer ends of the piercing seam.

[0006] Preferably, the sealing layer is a hot melt asphalt sealing layer.

[0007] Preferably, the waterproof coating layer is a cement-based permeable crystallization layer.

[0008] Preferably, the water blocking plate is made of 304 stainless steel water blocking plate.

[0009] Preferably, the waterproof membrane is a self-adhesive polymer modified asphalt waterproof membrane.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] 1. The utility model provides a waterproof structure for the lightning protection grounding of the pipe gallery piercing the bottom plate waterproof membrane, which effectively ensures the waterproofness of the structure and the construction operation is simple and economical.

[0012] 2. In the utility model, the cement-based penetrating crystallization waterproof coating used has the functions of anti-corrosion, anti-aging and protection of steel bars. The crystals do not affect the breathing ability of concrete, and can not only maintain the normal air permeability inside the concrete, but also keep the inside of the concrete structure from being corroded. In addition, the cement-based penetrating crystallization waterproof coating has dual waterproof properties. The penetrating crystals produced by the material can not only play a waterproof role inside the structure and block the pores of the internal structure of the concrete, but also play a role in compensating for shrinkage in the coating on the base surface of the concrete structure, so that the base surface of the structure after construction also has good crack resistance and anti-seepage effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the waterproof structure used for the lightning protection grounding of the pipeline corridor in an embodiment of the utility model where the bottom plate waterproof membrane is pierced.

[0014] In the figure: 1. Full-length grounding body; 2. Hot-melt asphalt sealing layer; 3. 304 stainless steel water-blocking plate; 4. Self-adhesive polymer modified asphalt waterproofing membrane; 5. Cement-based penetration crystallization layer; 6. Base plate. DETAILED DESCRIPTION

[0015] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below with reference to specific illustrations.

[0016] Example: Figure 1 The waterproof structure shown is used for the place where the lightning protection grounding of the pipeline corridor pierces the bottom plate waterproof membrane, including a hot-melt asphalt sealing layer 2, a cement-based permeable crystal layer 5 and a plurality of 304 stainless steel water-blocking plates 3. The hot-melt asphalt sealing layer 2 is used to seal the piercing seam of the full-length grounding body 1 on the bottom plate 6. The cement-based permeable crystal layer 5 is arranged between the self-adhesive polymer modified asphalt waterproof membrane 4 and the bottom plate 6. The plurality of 304 stainless steel water-blocking plates 3 are evenly distributed on the two outer ends of the piercing seam.

[0017] During the construction of the waterproof structure:

[0018] 1. Use brooms, shovels and other tools to clean the dust and debris on the surface of the base, and repair the areas where the appearance quality does not meet the requirements; sprinkle water on the dry base surface in advance to moisten it, and no water should remain. For base surfaces with clear water, all water should be swept away. The cleaned base surface must be flat, clean and moist.

[0019] 2. Before applying the cement-based penetrating crystallization layer, use clean water to fully wet the concrete base surface (no exposed water should be present during base surface construction). This can accelerate the chemical reaction between the active substances in the cement base and the substances in the concrete, facilitate the penetration of crystals into the interior, and at the same time improve the adhesion between the waterproof coating and the base surface.

[0020] 3. Brushing method: weigh according to the weight ratio of powder: water = 1:0.25-0.4. First pour water into the container, then pour the powder into the water for mechanical stirring; then use a hard brush to evenly apply the paint on the surface of the base layer. It should be applied multiple times, generally 2-3 times. The second coat can be applied after the first coat is solidified (if the surface of the previous coat has dried and turned white, it needs to be moistened before the next coat is applied). The amount of paint is 1.0-1.2kg / m 2 , the coating thickness should be greater than 0.8mm.

[0021] 4. Cut the self-adhesive polymer modified asphalt waterproofing membrane 4 according to the paving length and roll it up for use. When operating, align the end of the membrane with the starting position of paving, align it, with the film facing down, align the long and short overlap seams, lift the unfolded part, use a gasoline blowtorch or a special flame spray gun to heat the base and the membrane corner contact, keep a proper distance between the spray gun head and the membrane, and the distance between the nozzle and the membrane surface is 300mm; at an angle of 30-45° to the base, spray back and forth, and observe that the asphalt of the membrane has just melted, that is, the hot melt adhesive layer has a black luster, and it is shiny until slightly microbubbles appear. Slowly roll forward and lay it, and then compact it with an exhaust stick to make the membrane and the base firmly bonded.

[0022] The above are only implementation methods of the present utility model, and are not intended to limit the patent scope of the present utility model. Any equivalent structure made using the contents of the specification and drawings of the present utility model, directly or indirectly used in other related technical fields, are also within the patent protection scope of the present utility model.

Claims

1. A waterproof structure for the tunnel where lightning protection grounding pierces the bottom plate waterproofing membrane, characterized in that: It includes a sealing layer, a waterproof coating layer and a plurality of water blocking plates. The sealing layer is used to seal the puncture seam on the bottom plate that passes through the grounding body. The waterproof coating layer is arranged between the waterproof coiled material and the bottom plate. The plurality of water blocking plates are distributed at the two outer ends of the puncture seam.

2. The waterproof structure for the tunnel lightning protection grounding piercing the bottom plate waterproofing membrane according to claim 1, characterized in that: The sealing layer is a hot melt asphalt sealing layer.

3. The waterproof structure for the tunnel lightning protection grounding piercing the bottom plate waterproofing membrane according to claim 1 or 2, characterized in that: The waterproof coating layer is a cement-based permeable crystal layer.

4. The waterproof structure for the lightning protection grounding of the pipe gallery piercing the bottom plate waterproofing membrane according to claim 1 or 2, characterized in that: The water blocking plate is made of 304 stainless steel water blocking plate.

5. The waterproof structure for the tunnel lightning protection grounding piercing the bottom plate waterproofing membrane according to claim 1 or 2, characterized in that: The waterproof roll material is a self-adhesive polymer modified asphalt waterproof roll material.

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