CN213980807U - Open flow hydraulic shield tunnel seepage-proofing structure - Google Patents
Open flow hydraulic shield tunnel seepage-proofing structure Download PDFInfo
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- CN213980807U CN213980807U CN202023033321.1U CN202023033321U CN213980807U CN 213980807 U CN213980807 U CN 213980807U CN 202023033321 U CN202023033321 U CN 202023033321U CN 213980807 U CN213980807 U CN 213980807U
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- shield tunnel
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- anticorrosive paint
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Abstract
The utility model relates to a free-flow hydraulic shield tunnel seepage prevention structure. The utility model aims at providing a simple structure, construction convenience, lower free flowing water worker shield tunnel seepage prevention structure of cost. The technical scheme of the utility model is that: the utility model provides a free-flowing hydraulic shield tunnel seepage prevention structure which characterized in that: the method is characterized in that permeable epoxy waterproof and anticorrosive paint is coated on the outer side of a shield segment of the shield tunnel, holes and gaps on the inner side of the shield segment are plugged and leveled by micro-expansion cement, and the permeable epoxy waterproof and anticorrosive paint is coated on the full section of the inner side of the shield segment. The utility model is suitable for a hydraulic engineering field.
Description
Technical Field
The utility model relates to a free-flow hydraulic shield tunnel seepage prevention structure. Is suitable for the field of hydraulic engineering.
Background
The shield construction technology has good adaptability to the stratum and high construction safety factor, can avoid the problem of large excavation, has great advantages in construction under complex terrain and geological conditions, and is widely applied to the field of urban rail transit.
With the rapid development of hydraulic engineering in China, shield construction is applied to hydraulic tunnels more and more, but different from rail transit tunnels, hydraulic tunnels need to solve the problem of seepage of external water and the problem of seepage of internal water. In the rail traffic tunnel, the anti-seepage measures for the shield segments are only that anti-seepage materials are smeared on the outer sides, or gap repair work is carried out after construction is completed, so that the shield tunnel still has the leakage problem.
At present, in the anti-seepage measures of the hydraulic shield tunnel, concrete lining or steel pipe lining is carried out in the shield tunnel, but both the concrete lining and the steel pipe lining greatly increase the construction time and the cost, and particularly for open flow tunnels with low water pressure, the concrete lining and the steel pipe lining are only used for anti-seepage, so that the cost is not high.
Disclosure of Invention
The to-be-solved technical problem of the utility model is: aiming at the problems, the open flow hydraulic shield tunnel anti-seepage structure is simple in structure, convenient to construct and low in cost.
The utility model adopts the technical proposal that: the utility model provides a free-flowing hydraulic shield tunnel seepage prevention structure which characterized in that: the method is characterized in that permeable epoxy waterproof and anticorrosive paint is coated on the outer side of a shield segment of the shield tunnel, holes and gaps on the inner side of the shield segment are plugged and leveled by micro-expansion cement, and the permeable epoxy waterproof and anticorrosive paint is coated on the full section of the inner side of the shield segment.
The micro-expansion cement is sulphoaluminate super early strength cement.
The utility model has the advantages that: the utility model discloses can form the barrier layer respectively in the inside and outside both sides of shield structure section of jurisdiction, effectively prevent that the shield from constructing the tunnel internal water and ooze outward and the infiltration of extra income, and construction convenience, the cost is lower.
Drawings
Fig. 1 is a schematic structural diagram of the embodiment.
1. A shield segment; 2. permeable epoxy waterproof anticorrosive paint; 3. micro-expansive cement.
Detailed Description
In the embodiment, the seepage-proofing structure of the open flow hydraulic shield tunnel is characterized in that the outer side of a shield segment of the shield tunnel is coated with a permeable epoxy waterproof anticorrosive paint to form an outer seepage-proofing layer; various holes and construction gaps on the inner side of the shield segment are plugged and smoothed by micro-expansion cement (sulphoaluminate super-early strength cement), so that the inner side of the shield segment is smooth and clean, the water loss of the tunnel can be effectively reduced, and the water seepage condition of the gaps and the holes of the shield segment can be prevented; and smearing permeable epoxy waterproof anticorrosive paint on the full section of the inner side of the shield segment to form an inner impermeable layer.
In the embodiment, various holes and gaps of the shield segment are blocked by micro-expansion cement (sulphoaluminate super-early strength cement), and the permeable epoxy waterproof and anticorrosive paint forms double impermeable layers on the inner side and the outer side of the shield segment, thereby effectively preventing the water in the shield tunnel from seeping outwards and seeping inwards.
The permeable epoxy waterproof and anticorrosive paint on the outer side is coated before the installation of the duct piece, and the permeable epoxy waterproof and anticorrosive paint on the inner side is coated after the installation of the duct piece and the plugging of the holes and the gaps.
The permeable epoxy waterproof anticorrosive paint at the holes and the gaps in the embodiment can be coated for multiple times, so that the seepage-proofing performance is improved.
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 (2)
1. The utility model provides a free-flowing hydraulic shield tunnel seepage prevention structure which characterized in that: the method is characterized in that permeable epoxy waterproof and anticorrosive paint is coated on the outer side of a shield segment of the shield tunnel, holes and gaps on the inner side of the shield segment are plugged and leveled by micro-expansion cement, and the permeable epoxy waterproof and anticorrosive paint is coated on the full section of the inner side of the shield segment.
2. The open flow hydraulic shield tunnel seepage-proofing structure of claim 1, wherein: the micro-expansion cement is sulphoaluminate super early strength cement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023033321.1U CN213980807U (en) | 2020-12-16 | 2020-12-16 | Open flow hydraulic shield tunnel seepage-proofing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023033321.1U CN213980807U (en) | 2020-12-16 | 2020-12-16 | Open flow hydraulic shield tunnel seepage-proofing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213980807U true CN213980807U (en) | 2021-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023033321.1U Active CN213980807U (en) | 2020-12-16 | 2020-12-16 | Open flow hydraulic shield tunnel seepage-proofing structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN213980807U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115136915A (en) * | 2022-05-20 | 2022-10-04 | 北京万远科技有限公司 | Ring beam |
-
2020
- 2020-12-16 CN CN202023033321.1U patent/CN213980807U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115136915A (en) * | 2022-05-20 | 2022-10-04 | 北京万远科技有限公司 | Ring beam |
| CN115136915B (en) * | 2022-05-20 | 2024-01-26 | 北京万远科技有限公司 | Ring beam |
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