CN111456090A - Waterproof structure and method for concrete construction joint of immersed tube tunnel - Google Patents
Waterproof structure and method for concrete construction joint of immersed tube tunnel Download PDFInfo
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- CN111456090A CN111456090A CN202010272148.6A CN202010272148A CN111456090A CN 111456090 A CN111456090 A CN 111456090A CN 202010272148 A CN202010272148 A CN 202010272148A CN 111456090 A CN111456090 A CN 111456090A
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- stage concrete
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/063—Tunnels submerged into, or built in, open water
- E02D29/073—Tunnels or shuttering therefor assembled from sections individually sunk onto, or laid on, the water-bed, e.g. in a preformed trench
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/16—Arrangement or construction of joints in foundation structures
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
- E02D31/025—Draining membranes, sheets or fabric specially adapted therefor, e.g. with dimples
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses a waterproof structure and a construction method of a concrete construction joint of an immersed tube tunnel, which comprises the following steps: pouring a first-stage concrete part, and setting the joint section of the first-stage concrete part into a tongue-and-groove form; arranging a first angle steel and a first anchoring steel bar on the upper part of the joint section of the first-stage concrete part, and arranging a grouting pipe, a water-swelling water stop strip, a buried galvanized steel plate water stop strip and a shear steel bar in the middle; after the first-stage concrete part shrinks stably, pouring a second-stage concrete part; connecting the first-stage concrete part and the second-stage concrete part together through pre-embedded angle steel; and (4) paving a high-molecular self-adhesive film waterproof coiled material on the top of the top plate of the tunnel. The invention has good waterproof effect; the shearing force of the cold joint position under the action of high water pressure can be effectively borne, and the water leakage condition of the structure caused by the stress problem is avoided.
Description
Technical Field
The invention relates to the technical field of immersed tube tunnels, in particular to a large-volume concrete construction joint waterproof structure and a construction method of an immersed tube tunnel.
Background
Because the immersed tube tunnel is in a water environment, the concrete pouring belongs to mass concrete, and a method for setting a construction joint is adopted in order to solve the problem of shrinkage stress of the concrete in the concrete pouring process.
However, the concrete is poured after initial setting to form a cold joint, and in order to prevent water from seeping out of the cold joint, a water-stop steel plate is often arranged at a construction joint in the construction process, the position of the concrete cold joint poured successively is positioned at the half position of the center of the water-stop steel plate, so that the concrete and the water-stop steel plate are closely combined, and the cold joint position is prevented from water seepage by the water-stop steel plate. But the immersed tube tunnel is in high water pressure environment, and the seepage condition can appear sometimes to adopt the stagnant water steel sheet alone, and in case the structure takes place the seepage phenomenon, the later stage maintenance is very troublesome, greatly influences the normal operation and the use of structure.
Disclosure of Invention
The invention aims to provide a large-volume concrete construction joint waterproof structure and a construction method for a large-volume concrete construction joint of an immersed tube tunnel, which have good waterproof effect on the construction joint of the large-volume concrete of the immersed tube tunnel.
In order to achieve the purpose, the concrete technical scheme of the large-volume concrete construction joint waterproof structure and the construction method of the immersed tube tunnel provided by the invention is as follows:
a waterproof structure of immersed tube tunnel bulky concrete construction joint includes: the first-stage concrete part is characterized in that joint sections at two ends of the top of the first-stage concrete part are in a tongue-and-groove form, the upper part of the joint section is provided with first angle steel and first anchoring steel bars, and the middle part of the joint section is provided with a grouting pipe for sealing and water proofing, a water swelling water stop strip, a buried galvanized steel plate water stop strip and shear resistant steel bars; the joint section of the second-stage concrete part is matched with the joint section of the first-stage concrete part in shape, the upper part of the joint section is provided with second angle steel and second anchoring steel bars, and the second angle steel is connected with the first angle steel of the first-stage concrete part to realize the water prevention of the stage-by-stage concrete construction joint.
A construction method of a large-volume concrete construction joint of a immersed tube tunnel comprises the following steps:
pouring a first-stage concrete part, and setting the joint section of the first-stage concrete part into a tongue-and-groove form;
arranging a first angle steel and a first anchoring steel bar on the upper part of the joint section of the first-stage concrete part, and arranging a grouting pipe, a water-swelling water stop strip, a buried galvanized steel plate water stop strip and a shear steel bar in the middle;
after the first-stage concrete part shrinks stably, pouring a second-stage concrete part;
connecting the first-stage concrete part and the second-stage concrete part together through pre-embedded angle steel;
and (4) paving a high-molecular self-adhesive film waterproof coiled material on the top of the top plate of the tunnel.
The waterproof structure and the construction method of the concrete construction joint of the immersed tunnel have the advantages that:
1) the waterproof structure has five waterproof guarantees and a good waterproof effect;
2) the joint section of the construction joint for pouring concrete in stages is in a tongue-and-groove mode, and the shear steel bars are arranged, so that the shear force of the cold joint position under the action of high water pressure can be effectively borne, and the water leakage condition caused by the stress problem of the structure is avoided.
Drawings
Fig. 1 is a schematic structural view of a waterproof structure of the present invention.
In the figure: 1. a first stage concrete portion; 11. a first angle steel; 12. shear reinforcement bars; 13. a grouting pipe; 14. a water-swelling sealing strip when meeting water; 15. a middle-buried galvanized steel water stop; 16. a first anchoring bar; 2. a second stage concrete portion; 21. a second angle steel; 26. a second anchoring bar.
Detailed Description
In order to better understand the purpose, structure and function of the present invention, the following will describe the waterproof structure and construction method of the concrete construction joint of the immersed tube tunnel in detail with reference to the accompanying drawings.
Fig. 1 shows a waterproof structure and a construction method for a concrete construction joint of a immersed tunnel according to the present invention. Specifically, the waterproof structure comprises a first-stage concrete part 1 and a second-stage concrete part 2 which are poured in stages, joint sections at two ends of the top of the first-stage concrete part 1 (namely a gap to be connected between the first-stage concrete part 1 and the second-stage concrete part) are in a concave tongue-and-groove form, a first angle steel 11 and a first anchoring steel bar 16 are arranged at the upper part of the joint sections, and a grouting pipe 13 for sealing and waterproofing, an expansion water stop strip 14, a buried galvanized steel plate water stop belt 15 and a steel bar 12 for shearing resistance are transversely arranged in the middle. The shape of the joint section of the second-stage concrete part 2 is matched with that of the joint section of the first-stage concrete part 1, the joint section is in a tongue-and-groove form, the upper part of the joint is provided with second angle steel 21 and second anchoring steel bars 26, and the second angle steel 21 is connected with the first angle steel 11 of the first-stage concrete part 1 in a welding mode, so that water prevention of concrete construction joints poured in stages is achieved.
Further, a macromolecule self-adhesive film waterproof coiled material with the thickness of 1-2 mm is paved on the top of the tunnel top plate.
The invention also discloses a construction method of the concrete construction joint of the immersed tunnel, which comprises the following steps:
firstly, a first-stage concrete part is poured, and a joint section at the top of the first-stage concrete part (namely a gap to be connected with a second-stage concrete part 2) is set to be in a tongue-and-groove form.
And secondly, embedding a first angle steel 11 and a first anchoring steel bar 16 at the upper part of the joint section of the first-stage concrete part 1, and arranging a grouting pipe 13, a water-swelling water stop bar 14, a middle-buried galvanized steel plate water stop belt 15 and a shear steel bar 16 at the middle part.
And thirdly, after the first-stage concrete part shrinks stably, pouring a second-stage concrete part 2.
And fourthly, after the structure is maintained, welding and connecting the first-stage concrete part and the second-stage concrete part into a whole through the embedded angle steel.
Particularly, the shape of the joint section of the second-stage concrete part is matched with that of the first-stage concrete part, a second angle steel 21 and a second anchoring steel bar 26 are arranged on the upper portion of the joint section, and the second angle steel 21 is welded with the first angle steel 11 of the first-stage concrete part to achieve water prevention of the concrete construction joint poured in stages.
And fifthly, paving the 1-2 mm (preferably 1.5mm) thick polymer self-adhesive film waterproof roll on the upper part of the tunnel top plate.
According to the waterproof structure and the construction method of the concrete construction joint of the immersed tube tunnel, the waterproof structure has five waterproof guarantees and is good in waterproof effect; the joint section of the construction joint for pouring concrete in stages is in a tongue-and-groove mode, and the shear steel bars are arranged, so that the shear force of the cold joint position under the action of high water pressure can be effectively borne, and the water leakage condition caused by the stress problem of the structure is avoided.
The present invention has been further described with reference to specific embodiments, but it should be understood that the detailed description should not be construed as limiting the spirit and scope of the present invention, and various modifications made to the above-described embodiments by those of ordinary skill in the art after reading this specification are within the scope of the present invention.
Claims (5)
1. The utility model provides a waterproof construction of immersed tube tunnel bulky concrete construction joint which characterized in that includes:
the concrete comprises a first-stage concrete part (1), joint sections at two ends of the top of the first-stage concrete part are in a tongue-and-groove form, the upper part of the joint section is provided with first angle steel (11) and first anchoring reinforcing steel bars (16), and the middle part of the joint section is provided with a grouting pipe (13) for sealing and water proofing, a water-swelling water stop strip (14), a middle-buried galvanized steel plate water stop strip (15) and shear-resistant reinforcing steel bars (12);
the joint section of the second-stage concrete part (2) is matched with the joint section of the first-stage concrete part (1) in shape, a second angle steel (21) and a second anchoring steel bar (26) are arranged on the upper portion of the joint section, and the second angle steel (21) is connected with the first angle steel (11) of the first-stage concrete part to achieve water prevention of the concrete construction joint poured by stages.
2. The waterproof structure for the large-volume concrete construction joint of the immersed tube tunnel according to claim 1, wherein a macromolecule self-adhesive film waterproof coiled material with the thickness of 1-2 mm is paved on the top of a tunnel top plate.
3. A construction method of a large-volume concrete construction joint of a immersed tube tunnel is characterized by comprising the following steps:
pouring a first-stage concrete part, and setting the joint section of the first-stage concrete part into a tongue-and-groove form;
arranging a first angle steel and a first anchoring steel bar on the upper part of the joint section of the first-stage concrete part, and arranging a grouting pipe, a water-swelling water stop strip, a buried galvanized steel plate water stop strip and a shear steel bar in the middle;
after the first-stage concrete part shrinks stably, pouring a second-stage concrete part;
connecting the first-stage concrete part and the second-stage concrete part together through pre-embedded angle steel;
and (4) paving a high-molecular self-adhesive film waterproof coiled material on the top of the top plate of the tunnel.
4. The method for constructing the large-volume concrete construction joint of the immersed tube tunnel according to claim 3, wherein the high-molecular self-adhesive film waterproof roll is 1-2 mm thick.
5. The method for constructing the large-volume concrete construction joint of the immersed tube tunnel according to claim 3, wherein when the second-stage concrete part is poured, a second angle steel and a second anchoring steel bar are arranged at the upper part of the joint section of the second-stage concrete part, and the second angle steel is welded with the first angle steel of the first-stage concrete part, so that the waterproof of the construction joint of the concrete poured by stages is realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010272148.6A CN111456090A (en) | 2020-04-09 | 2020-04-09 | Waterproof structure and method for concrete construction joint of immersed tube tunnel |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010272148.6A CN111456090A (en) | 2020-04-09 | 2020-04-09 | Waterproof structure and method for concrete construction joint of immersed tube tunnel |
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| CN111456090A true CN111456090A (en) | 2020-07-28 |
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| CN202010272148.6A Pending CN111456090A (en) | 2020-04-09 | 2020-04-09 | Waterproof structure and method for concrete construction joint of immersed tube tunnel |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112687180A (en) * | 2020-12-11 | 2021-04-20 | 中国建筑第五工程局有限公司 | New and old concrete joint waterproof structure model and manufacturing method and application thereof |
| CN114718122A (en) * | 2022-03-16 | 2022-07-08 | 中国五冶集团有限公司 | Method for anti-seepage treatment of new and old structure underground corridor foundation connection construction joint |
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| JPH08193339A (en) * | 1995-01-18 | 1996-07-30 | Taisei Corp | Water bottom tunnel and cut-off of water structure for extrusion shaft |
| JPH093942A (en) * | 1995-06-23 | 1997-01-07 | Kyoritsu Kagaku Sangyo Kk | Fireproof construction of caisson connection of submerged tunnel |
| CN106436774A (en) * | 2016-12-02 | 2017-02-22 | 苏州设计研究院股份有限公司 | Underground engineering reserved deformation joint connecting interface structure and manufacturing method thereof |
| CN206467695U (en) * | 2017-02-17 | 2017-09-05 | 南京新吉泰岩土工程有限公司 | A kind of joint for sinking type empty stomach diaphram wall |
| CN107859064A (en) * | 2017-11-01 | 2018-03-30 | 浙江交工集团股份有限公司 | A kind of prefabricated piping lane is connected waterproof construction and construction method with cast-in-place piping lane |
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2020
- 2020-04-09 CN CN202010272148.6A patent/CN111456090A/en active Pending
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112687180A (en) * | 2020-12-11 | 2021-04-20 | 中国建筑第五工程局有限公司 | New and old concrete joint waterproof structure model and manufacturing method and application thereof |
| CN114718122A (en) * | 2022-03-16 | 2022-07-08 | 中国五冶集团有限公司 | Method for anti-seepage treatment of new and old structure underground corridor foundation connection construction joint |
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Address after: 300000 Hongqiao District, Tianjin City, Bridge South East Road Applicant after: CHINA RAILWAY TUNNEL SURVEY & DESIGN INSTITUTE Co.,Ltd. Applicant after: China Railway sixth survey and Design Institute Group Co., Ltd Address before: 300000 Hongqiao District, Tianjin City, Bridge South East Road Applicant before: CHINA RAILWAY (TIANJIN) TUNNEL ENGINEERING SURVEY & DESIGN Co.,Ltd. Applicant before: China Railway sixth survey and Design Institute Group Co., Ltd |