CN213953617U - Hydraulic shield tunnel segment bolt hole sealing structure - Google Patents
Hydraulic shield tunnel segment bolt hole sealing structure Download PDFInfo
- Publication number
- CN213953617U CN213953617U CN202023033298.6U CN202023033298U CN213953617U CN 213953617 U CN213953617 U CN 213953617U CN 202023033298 U CN202023033298 U CN 202023033298U CN 213953617 U CN213953617 U CN 213953617U
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- bolt hole
- bolt
- sealing structure
- shield tunnel
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Abstract
The utility model relates to a hydraulic shield tunnel section of jurisdiction bolt hole sealing structure. The utility model aims at providing a simple structure, the hydraulic shield tunnel section of jurisdiction bolt hole sealing structure that is difficult for droing. The technical scheme of the utility model is that: the utility model provides a hydraulic shield tunnel section of jurisdiction bolt hole sealing structure which characterized in that: correspond the bolt hole drill way is equipped with round water-swelling rubber circle, and this water-swelling rubber circle hugs closely bolt hole inner wall, be equipped with the spiral reinforcing bar in the bolt hole and fill and have little inflation cement. The utility model is suitable for a hydraulic engineering field.
Description
Technical Field
The utility model relates to a hydraulic shield tunnel section of jurisdiction bolt hole sealing structure. Is suitable for the field of hydraulic engineering.
Background
In recent years, with the development of hydraulic engineering, the shield construction method has been widely applied to hydraulic tunnel engineering due to the advantages of high construction safety, small influence on ground and underground pipelines, low harm to the environment and the like.
The duct piece of the tunnel constructed by the shield method needs to be fixedly connected by bolts, and bolt holes are reserved in the process of pouring the duct piece. In the water delivery tunnel, the existence of bolt hole has increaseed head loss, and tunnel rivers have certain corrosive action to the bolt, consequently need block up the bolt hole, guarantee to flow over the security that the section levels and the bolt.
The bolt hole is often plugged and trowelled by high-strength cement mortar or micro-expansion cement in the prior art, but the cement block often falls off in the long-term operation process, so that the plugging effect is lost, the water head loss of the water delivery tunnel is increased, and the aging of the bolt is accelerated.
Disclosure of Invention
The to-be-solved technical problem of the utility model is: to the problem that exists, provide a simple structure, be difficult for the hydraulic shield tunnel section of jurisdiction bolt hole sealing structure that drops.
The utility model adopts the technical proposal that: the utility model provides a hydraulic shield tunnel section of jurisdiction bolt hole sealing structure which characterized in that: correspond the bolt hole drill way is equipped with round water-swelling rubber circle, and this water-swelling rubber circle hugs closely bolt hole inner wall, be equipped with the spiral reinforcing bar in the bolt hole and fill and have little inflation cement.
The spiral reinforcing steel bar is connected with the bolt in the bolt hole.
The end of the bolt is provided with a small hole, and the spiral steel bar penetrates through the small hole of the end of the bolt to be connected with the bolt.
The micro-expansion cement is sulphoaluminate super early strength cement.
The utility model has the advantages that: the utility model has a bolt hole plugging structure main body consisting of spiral steel bars and micro-expansion cement, and has higher strength; the plugging structure main body is directly connected with the bolt through the spiral steel bar and is not easy to fall off; the micro-expansion cement and the water-swelling rubber ring are matched to realize an anti-seepage effect, so that the bolt is protected from being corroded by water flow.
Drawings
Fig. 1 is a schematic structural diagram of the embodiment.
1. Bolt holes; 2. a bolt; 3. a helical reinforcement; 4. micro-expansive cement; 5. a water-swellable rubber ring.
Detailed Description
This embodiment is a hydraulic shield tunnel section of jurisdiction bolt hole sealing structure, corresponds the bolt hole drill way and is equipped with the round and meets water inflation rubber circle, and this meets water inflation rubber circle and hugs closely the bolt hole inner wall. A spiral steel bar is arranged in the bolt hole and connected with the bolt in the bolt hole; and micro-expansion cement is filled in the bolt hole, the spiral reinforcing steel bars are wrapped by the micro-expansion cement, the end of the micro-expansion cement is leveled, and the overflowing section of the tunnel is ensured to be flat and smooth.
In this example, the bolt end is provided with a small hole, and the spiral steel bar passes through the small hole of the bolt end to be connected with the bolt. In this example, the micro-expansive cement is sulphoaluminate super early strength cement.
The above-mentioned embodiment is only used for explaining the utility model concept, and not to the limit of the utility model protection, and all utilize this concept to be right the utility model discloses carry out insubstantial change, all shall fall into the scope of protection of the utility model.
Claims (4)
1. The utility model provides a hydraulic shield tunnel section of jurisdiction bolt hole sealing structure which characterized in that: correspond the bolt hole drill way is equipped with round water-swelling rubber circle, and this water-swelling rubber circle hugs closely bolt hole inner wall, be equipped with the spiral reinforcing bar in the bolt hole and fill and have little inflation cement.
2. The hydraulic shield tunnel segment bolt hole sealing structure of claim 1, characterized in that: the spiral reinforcing steel bar is connected with the bolt in the bolt hole.
3. The hydraulic shield tunnel segment bolt hole sealing structure of claim 2, characterized in that: the end of the bolt is provided with a small hole, and the spiral steel bar penetrates through the small hole of the end of the bolt to be connected with the bolt.
4. The hydraulic shield tunnel segment bolt hole sealing structure of claim 1, characterized in that: the micro-expansion cement is sulphoaluminate super early strength cement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023033298.6U CN213953617U (en) | 2020-12-16 | 2020-12-16 | Hydraulic shield tunnel segment bolt hole sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023033298.6U CN213953617U (en) | 2020-12-16 | 2020-12-16 | Hydraulic shield tunnel segment bolt hole sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213953617U true CN213953617U (en) | 2021-08-13 |
Family
ID=77216426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023033298.6U Active CN213953617U (en) | 2020-12-16 | 2020-12-16 | Hydraulic shield tunnel segment bolt hole sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213953617U (en) |
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2020
- 2020-12-16 CN CN202023033298.6U patent/CN213953617U/en active Active
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