CN114319454A - Waterproof construction of lid excavation reverse construction method side wall horizontal construction seam - Google Patents
Waterproof construction of lid excavation reverse construction method side wall horizontal construction seam Download PDFInfo
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- CN114319454A CN114319454A CN202111639515.2A CN202111639515A CN114319454A CN 114319454 A CN114319454 A CN 114319454A CN 202111639515 A CN202111639515 A CN 202111639515A CN 114319454 A CN114319454 A CN 114319454A
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- concrete wall
- side wall
- construction
- water
- cover
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- 238000010276 construction Methods 0.000 title claims abstract description 50
- 238000009412 basement excavation Methods 0.000 title claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- 239000002390 adhesive tape Substances 0.000 claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 238000007569 slipcasting Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 239000003292 glue Substances 0.000 abstract description 4
- 238000009435 building construction Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 3
- 238000009415 formwork Methods 0.000 description 2
- 241000372132 Hydrometridae Species 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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- Building Environments (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The invention belongs to the field of building construction, and particularly relates to a waterproof structure for a horizontal construction joint of a side wall of a cover-excavation reverse construction method. The groove is filled with the PJ400 water-swelling water-stop glue which protrudes out of the concrete surface by no less than 5mm, the two sides of the groove are symmetrically provided with 8-12mm full-section grouting pipes, the three-way pipe is adopted to lead the outer side of the side wall to be no less than 500mm, and after the construction of the concrete for pouring the side wall is finished and the design strength is reached, a pressure type grouting machine is adopted for grouting, so that the waterproof effect of a construction joint is ensured.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a waterproof structure of a horizontal construction joint of a side wall in a cover-excavation top-down construction method.
Background
In the cover and dig reverse construction process, the side wall structure construction order is executed after every layer of roof and bottom plate structure construction in the underground finishes, so the side wall structure can form twice horizontal construction joint from top to bottom, and wherein the bottom construction joint returns a welding stagnant water steel sheet to set up on pouring, and upper strata horizontal construction joint is because the shoulder bottom of stopping need set up the template and prop up and establish the system, can't weld stagnant water steel sheet, need carry out the stagnant water measure of other modes.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a waterproof structure for a horizontal construction joint of a side wall of a cover-excavation top-down construction method.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a cover waterproof construction of horizontal construction joint of reverse construction method side wall, includes that the mould builds the concrete wall and stops and shoulder the concrete wall, the mould is built the concrete wall and is located the below of stopping and shoulder the concrete wall, and the mould builds the concrete wall and stops and be provided with upper horizontal construction joint between the shoulder the concrete wall, the bottom of stopping and shoulder the concrete wall reserves the recess, has placed trapezoidal stagnant water adhesive tape in the recess, the pre-buried grout pipe that has in top of mould construction concrete wall.
Preferably, the size of the grooves is 20mm by 10 mm.
Preferably, the bottom of trapezoidal stagnant water adhesive tape is the wave setting for increase stagnant water route length, increase the contact time of the water that gets into horizontal construction joint and water-swelling stagnant water adhesive tape, further strengthen the stagnant water effect of water-swelling stagnant water adhesive tape, and trapezoidal stagnant water adhesive tape is PJ400 type water-swelling stagnant water and glues.
Preferably, the grouting pipe is connected with a three-way pipe, the three-way pipe extends to the outside of the molded concrete wall and is connected with a pressure type grouting machine.
Preferably, the top of the molded concrete wall is welded with a water stop steel plate.
According to the waterproof structure of the horizontal construction joint of the side wall in the cover-excavation reverse construction method, when a template is erected at the middle position of the bottom of a shoulder-stopping concrete wall, a 20 x 10mm batten is longitudinally customized in the middle of the template along the groove of the shoulder-stopping concrete wall, a formwork support system is arranged below the template, the template is disassembled after the strength of concrete reaches the design strength, all battens are chiseled, a PJ400 water-swelling waterproof glue is filled in the groove and protrudes out of the concrete surface by no less than 5mm, 8-12mm full-section grouting pipes are symmetrically arranged on two sides of the groove, a three-way pipe is adopted to lead the outer side of the side wall to be no less than 500mm, and after the construction of the side wall is finished and the design strength is reached, a pressure type grouting machine is adopted to perform grouting, so that the waterproof effect of the construction joint is ensured.
Drawings
Fig. 1 is a schematic structural diagram of a waterproof structure of a horizontal construction joint of a side wall in a cover-excavation top-down method provided by the invention.
In the figure: 1 mould concrete wall, 2 stop shoulder concrete wall, 3 upper horizontal construction joints, 4 trapezoidal stagnant water adhesive tapes, 5 slip casting pipes, 6 pressure type slip casting machines.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1, a waterproof construction who covers horizontal construction joint of excavation reverse construction method side wall, including mould concrete wall 1 and the shoulder concrete wall 2 of stopping, mould concrete wall 1 is located the below of stopping shoulder concrete wall 2, and mould concrete wall 1 and the shoulder concrete wall 2 of stopping between be provided with upper horizontal construction joint 3, the bottom of stopping shoulder concrete wall 2 is reserved flutedly, trapezoidal stagnant water adhesive tape 4 has been placed in the recess, the pre-buried slip casting pipe 5 that has in top of mould concrete wall 1.
In the invention, the size of the groove is 20mm by 10mm, and the groove is used for installing the wood strips.
In the invention, the bottom of the trapezoidal water stop adhesive tape 4 is arranged in a wave shape, and the trapezoidal water stop adhesive tape 4 is PJ400 type water-swelling water stop adhesive.
In the invention, the grouting pipe 5 is connected with a three-way pipe, the three-way pipe extends out of the molded concrete wall 1 and is connected with a pressure type grouting machine 6.
In the invention, a water stop steel plate is welded on the top of the molded concrete wall 1.
According to the method, when a template is erected at the middle position of the bottom of a shoulder-stopping concrete wall 2, a 20-10 mm batten is longitudinally customized in the middle of the template along the groove of the shoulder-stopping concrete wall 2, a formwork support system is arranged below the template, the template is dismantled after the concrete strength reaches the design strength, all battens are chiseled, the groove is filled with PJ400 water-swelling waterproof glue and protrudes out of the concrete surface by no less than 5mm, 8-12mm full-section grouting pipes 5 are symmetrically arranged on two sides of the groove, the outer side of the side wall is led to be no less than 500mm by adopting a three-way pipe, and after the side wall is poured, the concrete construction is finished and the design strength is reached, a pressure type grouting machine is adopted for grouting, and the waterproof effect of a construction joint is ensured.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (5)
1. The utility model provides a cover waterproof construction of horizontal construction joint of reverse construction method side wall, includes mould concrete wall (1) and stops and shoulder concrete wall (2), its characterized in that, mould concrete wall (1) are located the below of stopping and shoulder concrete wall (2), and mould concrete wall (1) and stop and be provided with upper horizontal construction joint (3) between shoulder concrete wall (2), the bottom of stopping and reserving the recess in shoulder concrete wall (2), placed trapezoidal stagnant water adhesive tape (4) in the recess, the top of mould concrete wall (1) is pre-buried to have slip casting pipe (5).
2. The waterproof structure of the cover and cut reverse construction method side wall horizontal construction joint as claimed in claim 1, wherein the size of the groove is 20mm 10 mm.
3. The waterproof structure of the horizontal construction joint of the side wall of the cover-and-excavation reverse construction method according to claim 1, wherein the bottom of the trapezoidal water-stop rubber strip (4) is in a wave shape, and the trapezoidal water-stop rubber strip (4) is a PJ400 type water-swelling water-stop rubber.
4. The waterproof structure of the horizontal construction joint of the side wall of the cover and excavation reverse construction method according to claim 1, wherein the grouting pipe (5) is connected with a three-way pipe, the three-way pipe extends out of the molded concrete wall (1) and is connected with a pressure type grouting machine (6).
5. The waterproof structure of the cover and cut reverse construction method side wall horizontal construction joint as claimed in claim 1, wherein the water stop steel plate is welded on the top of the cast concrete wall (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111639515.2A CN114319454A (en) | 2021-12-29 | 2021-12-29 | Waterproof construction of lid excavation reverse construction method side wall horizontal construction seam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111639515.2A CN114319454A (en) | 2021-12-29 | 2021-12-29 | Waterproof construction of lid excavation reverse construction method side wall horizontal construction seam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114319454A true CN114319454A (en) | 2022-04-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111639515.2A Pending CN114319454A (en) | 2021-12-29 | 2021-12-29 | Waterproof construction of lid excavation reverse construction method side wall horizontal construction seam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114319454A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115478566A (en) * | 2022-11-02 | 2022-12-16 | 北京市政建设集团有限责任公司 | Waterproof node structure of side wall construction joint is done to lid side of digging |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003301456A (en) * | 2002-04-11 | 2003-10-24 | Shimizu Corp | Composite underground wall and execution method therefor, and cut-off material expandable with water |
| CN204298860U (en) * | 2014-10-30 | 2015-04-29 | 中国建筑第八工程局有限公司 | Lid digs the inverse side wall construction joint waterproofing node that does and constructs |
| CN112376620A (en) * | 2020-11-16 | 2021-02-19 | 中铁隧道局集团有限公司 | Waterproof treatment method for side wall of underground building structure by reverse construction joint |
| CN216865262U (en) * | 2021-12-29 | 2022-07-01 | 中航天建设工程集团有限公司 | Waterproof construction of lid excavation reverse construction method side wall horizontal construction seam |
-
2021
- 2021-12-29 CN CN202111639515.2A patent/CN114319454A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003301456A (en) * | 2002-04-11 | 2003-10-24 | Shimizu Corp | Composite underground wall and execution method therefor, and cut-off material expandable with water |
| CN204298860U (en) * | 2014-10-30 | 2015-04-29 | 中国建筑第八工程局有限公司 | Lid digs the inverse side wall construction joint waterproofing node that does and constructs |
| CN112376620A (en) * | 2020-11-16 | 2021-02-19 | 中铁隧道局集团有限公司 | Waterproof treatment method for side wall of underground building structure by reverse construction joint |
| CN216865262U (en) * | 2021-12-29 | 2022-07-01 | 中航天建设工程集团有限公司 | Waterproof construction of lid excavation reverse construction method side wall horizontal construction seam |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115478566A (en) * | 2022-11-02 | 2022-12-16 | 北京市政建设集团有限责任公司 | Waterproof node structure of side wall construction joint is done to lid side of digging |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220412 |
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| RJ01 | Rejection of invention patent application after publication |