A method for waterproof sealing of pipe gallery deformation joints

A technology of waterproof sealing and deformation joints, applied in water conservancy projects, underwater structures, buildings, etc., can solve problems such as easy to fall off or tear, difficult to replace, pollute the environment, etc., to achieve excellent aging resistance and weather resistance, Improve overall construction efficiency and simple construction process

Active Publication Date: 2019-12-13
LUOYANG SUNRUI SPECIAL EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 1. Due to the deviation of the cast-in-place concrete during the installation process of the waterstop, the position of the waterstop is deviated or the force is large, it is easy to fall off or tear, the waterproof is invalid, and it is difficult to replace
[0006] 2. There will be structural gaps between the rubber waterstop and the concrete, and these gaps will seep and leak under long-term water pressure
[0007] 3. After the actual installation of the waterstop, the concrete under the waterstop is poured. Because it is difficult to vibrate, the concrete under the waterstop hangs in the air or forms a hollow structure, resulting in waterproof failure
[0008] 4. After the construction of the comprehensive pipe gallery is completed, settlement will occur due to geological conditions, hydrological conditions, etc. Once the settlement is large, the waterstop will be torn and cannot be replaced
[0009] 5. The production process of rubber waterstop produces a large amount of carbon dioxide, sulfur dioxide and other environmental pollution

Method used

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  • A method for waterproof sealing of pipe gallery deformation joints
  • A method for waterproof sealing of pipe gallery deformation joints
  • A method for waterproof sealing of pipe gallery deformation joints

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Embodiment 1

[0049] Such as Figure 2~3 As shown, the present invention discloses a method for waterproof sealing of deformation joints of pipe gallery, the steps of which include:

[0050] St1: construction preparation;

[0051] St2: Pre-treatment of bonding base;

[0052] St3: Apply chemical adhesive to the bonding base surface;

[0053] St4: Casting cavity construction;

[0054] St5: pouring of elastomer waterproof seals;

[0055] St6: Fixing and maintenance of elastomer waterproof seals;

[0056] St7: Clean up the scene.

[0057] In the steps of the method for waterproofing and sealing the deformation joints of the pipe gallery according to the present invention, in step St2, the pre-adhesive treatment of the bonding base is mainly to remove the pre-embedded foam board, bond the weak interface on the surface of the cast-in-place concrete, and remove holes and numbness. surface, etc., including the removal and grinding of the pre-embedded foam boards in the deformation joints, the...

Embodiment 2

[0071] As an embodiment of the present invention, such as Figure 4 As shown, in the step St2 bonding base treatment, after the concrete base surface treatment, add the step St21 beam joint inspection, by checking whether the concrete water content between the deformation joints of the pipe gallery is less than 25%, if so, go to step St3 Apply chemical adhesive to the bonding base surface; if not, dry the deformation joints of the pipe gallery, and then transfer to the step of St21 beam joint inspection until the concrete water between the deformation joints of the pipe gallery is less than 25%, enter step St3 to apply chemical adhesive on the bonding base surface.

[0072] This setting further ensures the reliability of the bonding surface between the elastic body waterproof seal 8 and the concrete 4 , and ensures the durability and shear resistance of the bond between the elastic body waterproof seal 8 and the concrete 4 .

Embodiment 3

[0074] As an embodiment of the present invention, such as Figure 5 As shown, compared with Example 2, before applying the chemical adhesive on the bonding base surface in step St3, the process of grinding the deformation joints of St23 is added to polish the deformation joints of the pipe gallery, and then enter the step St3 bonding base surface Apply chemical adhesive. This setting makes the surface of the treated concrete base should be flat, clean, and dry without hollowing, looseness, honeycomb pitting, scum, floating soil, release agent, oil and other dirt. This setting is more conducive to elastomer waterproof seals 8. Better adhesion between chemical adhesive and concrete.

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Abstract

The invention discloses a method for waterproof sealing of the deformation joints of a pipe gallery. The waterproof sealing of the deformation joints of the pipe gallery is realized by pouring high-elastic waterproof sealing resin on site in the deformation joints of the urban comprehensive pipe gallery. The waterproof seal of the present invention does not affect the quality of concrete pouring, the elastic body waterproof seal is seamlessly bonded to the concrete, and there is no possibility of water seepage and water leakage; the use of two-component polyurethane elastomer sealing material can meet the requirements of the expansion and contraction of the concrete end. Shearing effect of large displacement; at the same time, it also has the beneficial effect of relatively simple and fast construction technology; in addition, the production of high elastic waterproof sealing resin material does not generate waste liquid, waste gas, etc., which is a green and environmentally friendly material, in line with smart cities, green the needs of urban construction.

Description

technical field [0001] The invention relates to the technical field of pipe gallery construction, in particular to a waterproof sealing method applied to reserved deformation joints of urban underground comprehensive pipe gallery. Background technique [0002] Pipe corridors originated in Europe, the United States and other countries. At present, China is gradually carrying out pilot projects and vigorously promoting construction. It is the only way to build a modern smart city. As an arterial project of urban comprehensive facilities, it has long-term strategic significance for my country's urbanization construction. [0003] The application number is CN201420118478.X, which discloses a basement deformation joint waterproof device with a hydrophobic structure. A pre-embedded rubber waterstop extending into the basement floor is provided in the middle of each deformation joint, and a water stop is provided at the top of each deformation joint. The second rubber waterstop, by...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D29/16E02D31/02
CPCE02D29/16E02D31/02
Inventor 王建彬张永兆姜文英曹翁恺陈新培刘绍辉栾绪波南英杰李志文
Owner LUOYANG SUNRUI SPECIAL EQUIP
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