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Sealing water stopping strip capsule of fabricated underground structure prefabricated part joint

A technology of prefabricated components and underground structures, applied in underwater structures, infrastructure engineering, water conservancy projects, etc., can solve the problem that waterproof gaskets are difficult to squeeze and deform, and achieve the effect of ensuring the sealing effect

Inactive Publication Date: 2019-07-02
CHINA RAILWAY DESIGN GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In addition, similar to the prefabricated underground diaphragm wall, it needs to be constructed under the condition of mud retaining wall, and it is difficult for the waterproof gasket at the joint between webs to achieve the required extrusion deformation

Method used

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  • Sealing water stopping strip capsule of fabricated underground structure prefabricated part joint
  • Sealing water stopping strip capsule of fabricated underground structure prefabricated part joint
  • Sealing water stopping strip capsule of fabricated underground structure prefabricated part joint

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Such as Figure 7 As shown, a water-stop bag can be installed at the corresponding position of the joints of the prefabricated parts formed by No. Correspondingly, after inflating or pouring cement slurry, the side walls of the two water-stop strips are squeezed to achieve the purpose of sealing and water-stopping.

Embodiment 2

[0051] Such as Figure 8 As shown, a water-stop strip can be installed on the prefabricated component at the joint side of the prefabricated component formed by No. After expansion, the side wall of the prefabricated component on the other side is squeezed to achieve the purpose of sealing and watertight.

Embodiment 3

[0053] Such as Figure 9 As shown, the water-stop strip can be applied to the water-stop of the joints between the prefabricated ground and wall webs. Paste the sealed water-stop strip bag in the reserved groove of the Nth sheet 7 of the prefabricated ground connection wall, insert the N-th sheet 7 of the prefabricated floor connection wall into the groove by using the mud retaining method, and extract the air in the water-stop bag to prevent it Block the insertion of the N+1th ground connection wall.

[0054] Insert the concave-convex tenons at the joints between the N+1 and 8th prefabricated floor connecting walls into the grooves, and after the positioning of the two adjacent floor connecting walls is completed, inject micro-expansion cement slurry into the capsule body 1 through the grouting nozzle 4 , Stop grouting after reaching the set pressure of 0.3MPa, after the grout solidifies, the purpose of sealing and water-stopping the inter-web joints can be achieved.

[005...

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Abstract

The invention discloses a sealing water stopping strip capsule of a fabricated underground structure prefabricated part joint. The sealing water stopping strip capsule comprises a rubber capsule body,a capsule cavity is formed in the capsule body to contain air or slightly expanded serous fluid, the capsule body is propped up under the action of air or the slightly expanded serous fluid to seal the joint, and an air bag mouth and a grouting mouth are formed in the outer wall of the capsule body; and the air bag mouth and the grouting mouth are located on the long side or the short side of thecapsule body, and the air bag mouth and the grouting mouth communicate with the capsule cavity. The sealing water stopping strip capsule can be used for sealing joints among prefabricated parts and sealing prefabricated connection walls, squeezing and sealing of the capsule body and a structural part are realized, and the sealing effect is ensured.

Description

technical field [0001] The invention belongs to the field of prefabricated underground structure engineering, and in particular relates to a water-stop strip bag for sealing joints of prefabricated components of an assembled underground structure. Background technique [0002] At present, my country is vigorously promoting the prefabricated assembly structure. The prefabricated assembly structure is a concrete structure made of prefabricated components as the main component, assembled, connected and partially cast in place. The prefabricated structure solves the problems of speed, quality, environment and efficiency in the project, so its application has gradually expanded from the above-ground structure to the underground structure. [0003] The joints of the prefabricated underground structure are the weak links of the structure, and in water-rich areas, water leakage is very easy to occur at the joints. It is commonly used waterproofing measures to set up an outsourcing ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D29/16E02D31/02
CPCE02D29/16E02D31/02
Inventor 张继清崔涛郭剑勇刘瑜张建芳宋冉王秀妍
Owner CHINA RAILWAY DESIGN GRP CO LTD
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