CN202577350U - Steel shell and concrete lap structure at end of immersed tunnel - Google Patents
Steel shell and concrete lap structure at end of immersed tunnel Download PDFInfo
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- CN202577350U CN202577350U CN 201220143175 CN201220143175U CN202577350U CN 202577350 U CN202577350 U CN 202577350U CN 201220143175 CN201220143175 CN 201220143175 CN 201220143175 U CN201220143175 U CN 201220143175U CN 202577350 U CN202577350 U CN 202577350U
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- pipeline section
- steel shell
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Abstract
The utility model discloses a steel shell and concrete lap structure at the end of an immersed tunnel. The steel shell and concrete lap structure at the end of the immersed tunnel comprises a joint, an anticorrosion layer, and a bottom coating. The joint is formed by tube side wall concrete and tube end steel shell. The anticorrosion layer is arranged on the outer surface of the joint on one side of the tube end steel shell. The anticorrosion layer is an arc galvanized coating. The bottom coating is arranged on the outer surface of the joint one side of the tube side wall concrete. The bottom coating is an epoxy resin coating. A waterproof reinforcing layer and a waterproof layer are arranged on the outer surfaces of the anticorrosion layer and the bottom coating respectively. Both the waterproof reinforcing layer and the waterproof layer are polyuria sprayed coatings. The waterproof reinforcing layer and the waterproof layer are equal in cover area and both cover by not less than 200mm on two sides of the joint. By the steel shell and concrete lap structure at the end of the immersed tunnel, waterproofing of the immersed tube section can be guaranteed, construction is convenient, and quality is easy to control. The defect that the traditional immersed tunnel cracks and leaks at the joint of the tube end steel shell and the tube concrete is overcome, while quality and safety in design and construction are guaranteed.
Description
Technical field
The utility model relates to the outer waterproof construction of a kind of immersed tube tunnel immersed tube pipeline section, relates in particular to a kind of immersed tube tunnel end box hat and concrete bridging arrangement.
Background technology
The outer waterproof of immersed tube tunnel immersed tube pipeline section is one of key issue in the immersed tube tunnel design and construction; Its waterproof effect directly has influence on the transportation by driving of immersed tube, heavy putting and the later stage use; Usually; To pipeline section end box hat (steel work) and pipeline section concrete structure handing-over seam waterproof, mainly be that the junction of the edges of two sheets of paper is brushed epoxy-polyurethane coating on the pipeline section surface, wherein cover obedient layer of glass layer (form two and be coated with a cloth) as enhancement Layer.But, still have a small amount of cracking infiltration in the construction because the shrinkage value of two kinds of materials differs quite big between end box hat and the pipeline section concrete.
The utility model content
To above-mentioned prior art; The utility model provides a kind of immersed tube tunnel end box hat and concrete bridging arrangement; Not only can guarantee immersed tube pipeline section waterproof effect; And easy construction quality easy to control, under the prerequisite of assurance design, construction quality and safety, having solved in the past, immersed tube tunnel stitches the drawback that cracking seeps water at pipeline section end box hat in the handing-over of pipeline section concrete structure.
In order to solve the problems of the technologies described above; The technical scheme that the utility model immersed tube tunnel end box hat and concrete bridging arrangement are achieved is: comprise the handing-over seam that is made up of pipeline section side wall concrete and pipeline section end box hat; The external surface that is positioned at pipeline section end box hat one side of handing-over seam is provided with anticorrosive coat; Said anticorrosive coat is the electric arc zn spraying coating, and the external surface that is positioned at pipeline section side wall concrete one side of handing-over seam is provided with scratch coat, and said scratch coat is an epoxy coating; Be provided with waterproof reinforced layer and waterproofing course on the external surface of said anticorrosive coat and said scratch coat successively, said waterproof reinforced layer and said waterproofing course are the polyureas sprayed coating.
The utility model immersed tube tunnel end box hat and concrete bridging arrangement, wherein, the area coverage of said waterproof reinforced layer and waterproofing course is identical, all covers to be positioned at the area that handing-over seam both sides are not less than 200mm.
The area coverage of said two-layer polyureas sprayed coating is to be positioned at handing-over seam both sides to be not less than 200mm, and thickness all is not less than 1.5mm.
Compared with prior art, the beneficial effect of the utility model is:
Immersed tube end box hat and pipeline section concrete junction waterproof construction are optimized design; Guaranteed immersed tube pipeline section waterproof quality; The utility model adopts the epoxy primer to immersed tube pipeline section concrete, the opposite end box hat removes the sandblast rust carry out the electric arc zn spraying coating after, spray two-layer polyurea layer at both seam crossings; Guarantee end box hat and pipeline section concrete handing-over seam waterproof quality, avoided the handing-over seam cracking infiltration to occur.
Description of drawings
Fig. 1 is pipeline section end box hat and pipeline section concrete structure handing-over seam sectional drawing;
Fig. 2 is a partial structurtes enlarged drawing shown in the I portion among Fig. 1.
Among the figure: 1-pipeline section side wall concrete, 2-pipeline section end box hat, 3-anticorrosive coat, 4-scratch coat, 5-waterproof reinforced layer, 6-waterproofing course.
The specific embodiment
Below in conjunction with the specific embodiment the utility model is done to describe in further detail.
As shown in Figure 1; The utility model immersed tube tunnel end box hat and concrete bridging arrangement comprise the handing-over seam that is made up of pipeline section side wall concrete 1 and pipeline section end box hat 2, and be as shown in Figure 2; The external surface that is positioned at pipeline section end box hat 2 one sides of handing-over seam is provided with anticorrosive coat 3; Said anticorrosive coat 3 is the electric arc zn spraying coating, and the external surface that is positioned at pipeline section side wall concrete 1 one sides of handing-over seam is provided with scratch coat 4, and said scratch coat 4 is an epoxy coating; Be provided with waterproof reinforced layer 5 and waterproofing course 6 successively on the external surface of said anticorrosive coat 3 and said scratch coat 4, said waterproof reinforced layer 5 is the polyureas sprayed coating with said waterproofing course 6.The area coverage of said waterproof reinforced layer 5 and waterproofing course 6 is basic identical, all covers to be positioned at the area that handing-over seam both sides are not less than 200mm, and thickness all is not less than 1.5mm, and preferred thickness is 1.5mm.
The utility model is in order to guarantee immersed tube pipeline section waterproof effect; And easy construction quality easy to control; Immersed tube pipeline section concrete is adopted the epoxy primer; The opposite end box hat sprays two-layer polyurea layer in seam at last except that the sandblast rust carries out the electric arc zn spraying coating, thereby has formed immersed tube tunnel end box hat and the concrete bridging arrangement with reliable waterproof effect.
Realize the utility model a kind of immersed tube tunnel end box hat and concrete bridging arrangement as follows:
After pipeline section end box hat 2 carried out the basal plane derusting by sandblasting, carry out the construction of electric arc zn spraying coating;
After pipeline section side wall concrete 1 surface carried out base cleaning, repairs, carry out scratch coat (epoxy coating) construction;
Carry out the construction that the junction of the edges of two sheets of paper covers waterproof reinforced layer 5 and waterproofing course 6, i.e. the two-layer polyurea layer of spraying in the seam both sides are not less than the scope of 200mm, thickness all is not less than 1.5mm.
Although top combination figure is described the utility model; But the utility model is not limited to the above-mentioned specific embodiment, and the above-mentioned specific embodiment only is schematically, rather than restrictive; Those of ordinary skill in the art is under the enlightenment of the utility model; Under 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 utility model.
Claims (3)
1. immersed tube tunnel end box hat and concrete bridging arrangement comprise the handing-over seam that is made up of pipeline section side wall concrete (1) and pipeline section end box hat (2), it is characterized in that:
The external surface that is positioned at pipeline section end box hat (2) one sides of handing-over seam is provided with anticorrosive coat (3); Said anticorrosive coat (3) is the electric arc zn spraying coating; The external surface that is positioned at pipeline section side wall concrete (1) one side of handing-over seam is provided with scratch coat (4), and said scratch coat (4) is an epoxy coating; Be provided with waterproof reinforced layer (5) and waterproofing course (6) on the external surface of said anticorrosive coat (3) and said scratch coat (4) successively, said waterproof reinforced layer (5) and said waterproofing course (6) are the polyureas sprayed coating.
2. immersed tube tunnel end box hat according to claim 1 and concrete bridging arrangement is characterized in that, said waterproof reinforced layer (5) is identical with the area coverage of waterproofing course (6), all cover to be positioned at the area that handing-over seam both sides are not less than 200mm.
3. immersed tube tunnel end box hat according to claim 1 and concrete bridging arrangement is characterized in that, said waterproof reinforced layer (5) is identical with the cladding thickness of waterproofing course (6), and all cladding thickness all is not less than 1.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220143175 CN202577350U (en) | 2012-04-07 | 2012-04-07 | Steel shell and concrete lap structure at end of immersed tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220143175 CN202577350U (en) | 2012-04-07 | 2012-04-07 | Steel shell and concrete lap structure at end of immersed tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202577350U true CN202577350U (en) | 2012-12-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220143175 Expired - Fee Related CN202577350U (en) | 2012-04-07 | 2012-04-07 | Steel shell and concrete lap structure at end of immersed tunnel |
Country Status (1)
| Country | Link |
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| CN (1) | CN202577350U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103770215A (en) * | 2013-11-29 | 2014-05-07 | 中交第二航务工程局有限公司 | Installing and position adjusting method for pipe joint end steel shell |
| CN104652482A (en) * | 2015-02-16 | 2015-05-27 | 中交一航局第二工程有限公司 | Immersed tube joint mounting and dismounting device for sea bottom immersed tube tunnel |
| CN104711996A (en) * | 2015-02-16 | 2015-06-17 | 中交四航局第二工程有限公司 | End steel shell mounting and positioning device and operation method |
| CN113389127A (en) * | 2021-06-11 | 2021-09-14 | 江苏东南结构防灾工程有限公司 | Heavy-duty anticorrosion thermal barrier system for steel bridge fused deposition composite material |
-
2012
- 2012-04-07 CN CN 201220143175 patent/CN202577350U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103770215A (en) * | 2013-11-29 | 2014-05-07 | 中交第二航务工程局有限公司 | Installing and position adjusting method for pipe joint end steel shell |
| CN103770215B (en) * | 2013-11-29 | 2016-02-03 | 中交第二航务工程局有限公司 | The installation positioning method of tube coupling end box hat |
| CN104652482A (en) * | 2015-02-16 | 2015-05-27 | 中交一航局第二工程有限公司 | Immersed tube joint mounting and dismounting device for sea bottom immersed tube tunnel |
| CN104711996A (en) * | 2015-02-16 | 2015-06-17 | 中交四航局第二工程有限公司 | End steel shell mounting and positioning device and operation method |
| CN104711996B (en) * | 2015-02-16 | 2016-09-14 | 中交四航局第二工程有限公司 | A kind of end box hat installs rackwork and operational approach |
| CN113389127A (en) * | 2021-06-11 | 2021-09-14 | 江苏东南结构防灾工程有限公司 | Heavy-duty anticorrosion thermal barrier system for steel bridge fused deposition composite material |
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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: 20121205 Termination date: 20130407 |