CN202689038U - Immersed tube section with exterior-covered waterproof structure - Google Patents
Immersed tube section with exterior-covered waterproof structure Download PDFInfo
- Publication number
- CN202689038U CN202689038U CN 201220242582 CN201220242582U CN202689038U CN 202689038 U CN202689038 U CN 202689038U CN 201220242582 CN201220242582 CN 201220242582 CN 201220242582 U CN201220242582 U CN 201220242582U CN 202689038 U CN202689038 U CN 202689038U
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- Prior art keywords
- waterproof
- immersed tube
- pipeline section
- steel plate
- coating
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Abstract
The utility model discloses an immersed tube section with an exterior-covered waterproof structure. The immersed tube section comprises a tube section top plate, a tube section base plate and an immersed tube outer side wall. The lower portions of the tube section base plate and the immersed tube outer side wall are provided with waterproof steel plates, and the waterproof steel plates comprise splicing weld joints. The outer sides of the waterproof steel plates are provided with anticorrosion composite coatings, and the anticorrosion composite coatings are composed of electric arc zinc-sprayed coatings and solvent-free epoxy paint coatings which are arranged from inside to outside. The outer sides of the tube section top plate and the immersed tube outer side wall are provided with waterproof coatings which are composed of spraying type polyurea waterproof coatings. The waterproof coatings are in lap joint with the waterproof steel plates at the lower portion of the immersed tube outer side wall, the lap join length is 220mm, and the waterproof coatings are located on the outer sides of the waterproof steel plates. The immersed tube section with the exterior-covered waterproof structure are strong in waterproof performance, low in maintenance cost and capable of meeting the requirement for fixed number of construction years.
Description
Technical field
The utility model relates to the waterproof construction in a kind of immersed tube tunnel engineering, relates in particular to a kind of immersed tube pipeline section with outsourcing waterproof construction.
Background technology
Immersed tube tunnel pipeline section waterproof take structure from waterproof as main, immersed tube tunnel is because the impact of ambient conditions, is in for a long time corroded by it, therefore improving structure itself under the prerequisite of waterproof, also should carry out external structure waterproof, anti-corrosion measure.
In the immersed tube tunnel design in the past, the precedent that adopts the outsourcing waterproof construction is arranged also, for example, base plate adopts outsourcing PVC plastic plate, and top board and side wall generally are provided with the polyurethane water-proof coating.But the PVC plastic plate is subjected to the impact of execution conditions in work progress, should not protect; Also have, the polyurethane water-proof coating is unfavorable for that long-term existence is under the environment that corrosive medium is arranged.
The utility model content
For above-mentioned prior art, in line with improving the immersed tube tunnel water resistance, reduce the maintenance cost, satisfy the requirement of the construction time limit, the utility model provides a kind of immersed tube pipeline section with outsourcing waterproof construction, adopt the outsourcing waterproof steel plate as the waterproof construction of base plate, external wall and top board adopt the spary coating type polyurea waterproof coating material, thereby make the immersed tube pipeline section have whole outsourcing water-proof function.
In order to solve the problems of the technologies described above, the utlity model has the technical scheme that the immersed tube pipeline section of outsourcing waterproof construction is achieved is: comprise being arranged on pipeline section top board and pipeline section base plate and immersed tube external wall, the bottom of described pipeline section base plate and immersed tube external wall is equipped with waterproof steel plate, and described waterproof steel plate includes splicing welding joint; The outside of described waterproof steel plate is provided with anticorrosive composite coating, and described anticorrosive composite coating is made of the electric arc zn spraying coating and the non-solvent epoxy lacquer coat that arrange from inside to outside; The outside of described pipeline section top board and described immersed tube external wall is provided with waterproof coating, and described waterproof coating is made of spary coating type polyurea water-proof coating; Described waterproof coating and described waterproof steel plate are at the bottom of immersed tube external wall overlap joint, and lap length is 200mm, and described waterproof coating is positioned at the outside of described waterproof steel plate.
Further, be provided with backing plate at the splicing welding joint place of waterproof steel plate upstream face, be equipped with the self-adhering-type waterproofing course at the splicing welding joint place of waterproof steel plate back side.Described backing plate width is 50mm, and thickness is 8mm.Described self-adhering-type waterproofing course is asphaltic base polyester blank double-sided self-adhesive type waterproof roll.
Compared with prior art, the beneficial effects of the utility model are:
The pipeline section base plate of the utility model immersed tube pipeline section adopts the waterproof steel plate structure, can not be subject to the restriction of ambient conditions at work progress, and the solder technology of waterproof steel plate piece is also very ripe, and quality is easy to guarantee.Pipeline section top board and the immersed tube lateral wall outside are coated with spary coating type polyurea water-proof coating; its curing rate is fast; can bond with solid concrete base layer; intensity is large, wear-resisting, ageing-resistant, impact resistance is good; can not establish topping, eliminate the anti-trouble and worry that crashes through of stone of the large particle diameter of later stage pipeline section backfill.
Description of drawings
Fig. 1 is the immersed tube pipe segment structure schematic diagram that the utlity model has the outsourcing waterproof construction;
Fig. 2 is the local enlarged diagram of I section among Fig. 1;
Fig. 3 is the enlarged diagram of the base plate of pipeline section shown in Fig. 1 waterproof, anticorrosion and dowel structure.
Among the figure:
1-pipeline section base plate 2-waterproof steel plate 3-anticorrosive composite coating 4-immersed tube external wall
5-waterproof coating 6-pipeline section top board 7-electric arc zn spraying coating 8-non-solvent epoxy lacquer coat
9-backing plate 10-waterproof roll 11-dowel 12-weld seam
13-cold galvanizing coating.
The specific embodiment
Below in conjunction with the specific embodiment the utility model is described in further detail.
As shown in Figure 1, a kind of immersed tube pipeline section with outsourcing waterproof construction of the utility model, comprise being arranged on pipeline section top board 6 and pipeline section base plate 1 and immersed tube external wall 4, the bottom of described pipeline section base plate 1 and immersed tube external wall 4 is equipped with waterproof steel plate 2, and described waterproof steel plate 2 includes splicing welding joint.The outside of described waterproof steel plate 2 is provided with anticorrosive composite coating 3, and as shown in Figure 2, described anticorrosive composite coating 3 is made of the electric arc zn spraying coating 7 and the non-solvent epoxy lacquer coat 8 that arrange from inside to outside; The outside of described pipeline section top board 6 and described immersed tube external wall 4 is provided with waterproof coating 5, and described waterproof coating 5 is made of spary coating type polyurea water-proof coating.As shown in Figure 2, described waterproof coating 5 overlaps with the bottom of described waterproof steel plate 2 at immersed tube external wall 4, and lap length is 200mm, and described waterproof coating 5 is positioned at the outside of described waterproof steel plate 2.
As shown in Figure 3, be provided with backing plate 9 at the splicing welding joint place of waterproof steel plate 2 upstream faces, described backing plate 9 width are 50mm, and thickness is 8mm; Splicing welding joint place at waterproof steel plate 2 back sides is equipped with self-adhering-type waterproofing course 10, and described self-adhering-type waterproofing course 10 is asphaltic base polyester blank double-sided self-adhesive type waterproof roll.
As shown in Figure 3, in order to strengthen waterproof steel plate 2 and concrete adhesion stress, be welded with dowel 11 at waterproof steel plate 2 back sides, described dowel 11 is provided with cold galvanizing anticorrosive coat 13 with weld seam 12 places of waterproof steel plate 2, and described cold galvanizing anticorrosive coat coverage is respectively to extend respectively 120mm to both sides take the whole piece weld seam as line of symmetry.
The formation of outsourcing waterproof construction is on the immersed tube pipeline section of the present utility model: carry out first the corrosion-inhibiting coating processing as the waterproof steel plate 2 of pipeline section base plate 1 before the construction of immersed tube prefabrication of tube section; Complete waterproof steel plate 2 along the immersed tube sideline, steel plate thickness is 8mm, and has welded splicing welding joint; Then weld dowel 11, the processing of weld seam between dowel 11 and the waterproof steel plate 2; Waterproof steel plate on the immersed tube external wall 4 is installed, waterproof steel plate on the immersed tube external wall 4 is along returning 2.4m on the external wall, after prefabrication of tube section is finished, carry out the concrete surface cleaning, pipeline section residue side wall and pipeline section top board 6 outsourcing waterproof coatings 5 are spary coating type polyurea water-proof coating, the thickness of this spray-up is 1.5mm, and overlaps at bottom and the waterproof steel plate 2 of pipeline section external wall 4, and its lap length is 200mm.
The concrete operations technique of the utility model immersed tube pipeline section comprises:
(1) construction of waterproof steel plate 2 anticorrosive composite coatings 3, anticorrosive composite coating 3 is in conjunction with adopting electric arc zn spraying and non-solvent epoxy lacquer, wherein, the electric arc zn spraying layer thickness is 250um, non-solvent epoxy lacquer build is 130um, at first the waterproof steel plate upstream face is carried out derusting by sandblasting, construction electric arc zn spraying coating after rust cleaning is finished sprays one deck non-solvent epoxy lacquer at last.
(2) at wide 50mm of the steel plate splicing commissure of waterproof steel plate upstream face pad, thick 8mm, and through antiseptic elongated steel plate bar, adopt the Lincoln weld welding.Waterproof steel plate back side commissure black top base polyester blank double-sided self-adhesive type waterproof roll.
(3) in order to strengthen steel plate and concrete adhesion stress, weld dowel at the waterproof steel plate back side, commissure brushing one deck cold galvanizing coating, the scope of brushing are 120mm place along the whole piece weld seam to steel plate and outside the dowel.
(4) after the pipeline section construction is finished, carry out pipeline section external wall and pipeline section concrete roof base treatment, processing on the clean basal plane, adopt the thick polyurea water-proof coating of the U.S. flush coater H20/35Pro of Ka Shima company type GX-7 spray gun spraying 1.5mm.
(5) the polyurea water-proof coating is at pipeline section external wall bottom and waterproof steel plate overlap joint, and lap length is 200mm.So far, processed the immersed tube pipeline section that the utlity model has the outsourcing waterproof construction.
Although the above is described the utility model in conjunction with figure; but the utility model is not limited to the above-mentioned specific embodiment; the above-mentioned specific embodiment only is schematic; rather than restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; in the situation that does not break away from the utility model aim, can also make a lot of distortion, these all belong within the protection of the present utility model.
Claims (6)
1. the immersed tube pipeline section with outsourcing waterproof construction comprises being arranged on pipeline section top board (6) and pipeline section base plate (1) and immersed tube external wall (4), it is characterized in that,
The bottom of described pipeline section base plate (1) and immersed tube external wall (4) is equipped with waterproof steel plate (2), and described waterproof steel plate (2) includes splicing welding joint;
The outside of described waterproof steel plate (2) is provided with anticorrosive composite coating (3), and described anticorrosive composite coating (3) is made of the electric arc zn spraying coating (7) that arranges from inside to outside and non-solvent epoxy lacquer coat (8);
The outside of described pipeline section top board (6) and described immersed tube external wall (4) is provided with waterproof coating (5), and described waterproof coating (5) is made of spary coating type polyurea water-proof coating;
Described waterproof coating (5) overlaps with the bottom of described waterproof steel plate (2) at immersed tube external wall (4), and lap length is 200mm, and described waterproof coating (5) is positioned at the outside of described waterproof steel plate (2).
2. described immersed tube pipeline section with outsourcing waterproof construction according to claim 1, it is characterized in that, splicing welding joint place at waterproof steel plate (2) upstream face is provided with backing plate (9), is equipped with self-adhering-type waterproofing course (10) at the splicing welding joint place of waterproof steel plate (2) back side.
3. described immersed tube pipeline section with outsourcing waterproof construction according to claim 2 is characterized in that described backing plate (9) width is 50mm, and thickness is 8mm.
4. described immersed tube pipeline section with outsourcing waterproof construction according to claim 2 is characterized in that described self-adhering-type waterproofing course (10) is asphaltic base polyester blank double-sided self-adhesive type waterproof roll.
5. described immersed tube pipeline section with outsourcing waterproof construction according to claim 1, it is characterized in that, the back side of described waterproof steel plate (2) is welded with dowel (11), and described dowel (11) locates to be provided with cold galvanizing anticorrosive coat (13) with the weld seam (12) of waterproof steel plate (2).
6. described immersed tube pipeline section with outsourcing waterproof construction according to claim 5 is characterized in that, described cold galvanizing anticorrosive coat coverage is to extend respectively 120mm to both sides take the whole piece weld seam as line of symmetry.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220242582 CN202689038U (en) | 2012-05-25 | 2012-05-25 | Immersed tube section with exterior-covered waterproof structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220242582 CN202689038U (en) | 2012-05-25 | 2012-05-25 | Immersed tube section with exterior-covered waterproof structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202689038U true CN202689038U (en) | 2013-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220242582 Expired - Fee Related CN202689038U (en) | 2012-05-25 | 2012-05-25 | Immersed tube section with exterior-covered waterproof structure |
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| CN (1) | CN202689038U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103711147A (en) * | 2013-11-29 | 2014-04-09 | 中交第四航务工程局有限公司 | Method of mounting ballast tank in immersed tube |
-
2012
- 2012-05-25 CN CN 201220242582 patent/CN202689038U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103711147A (en) * | 2013-11-29 | 2014-04-09 | 中交第四航务工程局有限公司 | Method of mounting ballast tank in immersed tube |
| CN103711147B (en) * | 2013-11-29 | 2016-02-03 | 中交第四航务工程局有限公司 | The mounting method of ballast water tank water in immersed tube |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130123 Termination date: 20130525 |