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Combined mounting method for water stop

A combined installation and waterstop technology, which is applied in protection devices, buildings, infrastructure engineering, etc., can solve the problems of limited material strength, impact on quality, and increased difficulty in steel bar construction, and achieve light weight, mechanical connection and small size , The effect that the construction quality is easy to control

Inactive Publication Date: 2008-02-27
CHINA RAILWAY 24TH BUREAU GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Due to the simultaneous construction of the waterstop and the civil structure in this installation method, the site conditions are messy, and it may be moved or damaged after it is in place, which will affect the final water termination effect; and the rubber or plastic waterstop is easy due to its limited material strength. It is damaged during the construction period, and the durability during the operation period is also poor; at the same time, due to the setting of the buried waterstop, it is easy to form a local barrier in the structure, affecting the pouring quality of the concrete in this part, and causing some voids, resulting in construction The post-seepage path; in addition, the existence of the buried waterstop hinders the arrangement of steel bars at the end of the structure, affects the structural strength of the end, and also increases the difficulty of the reinforcement construction at this part; especially the buried waterstop after construction and The external waterstop cannot be repaired or replaced. Once damaged, it will be a fatal hazard to the waterproofing of the structure.
[0005] Due to the large size of the built-in detachable waterstop, it takes up a certain amount of space. It is necessary to reserve structural steps on both sides of the expansion joint, and the layout of the structural reinforcement must also be adjusted. At the same time, it is necessary to reserve steel embedded components to fix the rubber Class or plastic detachable waterstop, this reserved process also interferes with the structure and construction, affecting the expected quality of each other

Method used

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  • Combined mounting method for water stop
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  • Combined mounting method for water stop

Examples

Experimental program
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Effect test

Embodiment 1

[0030] This embodiment adopts a combination of the buried installation method and the internal paste installation method, and specifically adopts the following steps:

[0031] This embodiment first adopts the buried installation method, that is, the waterstop 6 is positioned on the steel bar and the template while the reinforced concrete structure is erected and the steel is tied. The waterstop 6 is positioned in the reinforced concrete structure 1, and then Pouring structural concrete, forming once;

[0032] Afterwards, the internal stick installation method is used to complete the installation of the internal stick stainless steel waterstop 12. The specific steps are as follows: (1) First, chamfer 10 on both sides of the expansion joint gap 5, and on the inner side of the completed reinforced concrete structure 3 The base surface is leveled and cleaned within the width of the waterstop. (2) At the installation site, connect the standard fixed-length linear waterstop 16 end to en...

Embodiment 2

[0035] This embodiment adopts a combination of the external sticking installation method and the internal sticking installation method, and the following steps are specifically adopted:

[0036] This embodiment first adopts the external mounting method, that is, when the reinforced concrete structure is erected and the steel is tied, the water stop 7 is positioned on the external formwork, that is, the side of the soil facing surface 2, and then the structural concrete is poured in one time;

[0037] Afterwards, the internal sticking installation method is adopted to complete the installation of the internal sticking stainless steel waterstop 12, which is the same as the first embodiment.

Embodiment 3

[0039] In this embodiment, the embedded installation form, the external paste installation form, and the internal paste installation form are used in combination, and the following steps are specifically adopted:

[0040] In this embodiment, the waterstops 6, 7 are positioned on the steel bars and the template while the reinforced concrete structure is erected and the steel bars are tied, and then the structural concrete is poured in one time forming, wherein the externally attached waterstop 7 is positioned on the reinforced concrete structure On the side of the soil-facing surface 2, the buried waterstop 6 is positioned in the reinforced concrete structure 1; afterwards, the internally attached installation is completed, and the installation of the internally attached stainless steel waterstop 12 is completed. The installation method is the same as the first embodiment.

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Abstract

The present invention relates to underground structure, and is especially one kind of water stopping belt for the extension joint in tunnel and similar underground structure and its combined installation method. The installation mode includes outer applying, middle burying and combined inside painting, which is to install water stopping belt of stainless steel material to the reinforcing concrete structure in the late construction stage. The present invention can raise construction quality effectively and is suitable for subsequent maintenance and replacing.

Description

Technical field [0001] The present invention relates to underground structures, in particular to a waterstop used for expansion joints of underground structures, especially tunnel structures, and a combined installation method thereof. Background technique [0002] In the prior art, the waterstop used for expansion joints of underground structures is usually a waterstop using rubber or plastic materials. Its forms are divided into three types: externally attached, embedded, and internally removable. The waterstop installed in the expansion joint is not less than a combination of the above two to form more than two lines of defense. The more commonly used is the combination of buried type and externally attached type. [0003] The concrete method of the embedded type and the externally attached type is to position the waterstop on the steel bar or the template while constructing the vertical form and tie the steel bar of the reinforced concrete structure, and then pour the structu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D31/04
Inventor 姚宪平朱祖熹
Owner CHINA RAILWAY 24TH BUREAU GRP