CN113339008A - Method for installing subway deformation joint water-stopping steel plate with rear side plugging on back surface - Google Patents
Method for installing subway deformation joint water-stopping steel plate with rear side plugging on back surface Download PDFInfo
- Publication number
- CN113339008A CN113339008A CN202110670589.6A CN202110670589A CN113339008A CN 113339008 A CN113339008 A CN 113339008A CN 202110670589 A CN202110670589 A CN 202110670589A CN 113339008 A CN113339008 A CN 113339008A
- Authority
- CN
- China
- Prior art keywords
- water
- grouting
- steel plate
- deformation joint
- stop steel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 56
- 239000010959 steel Substances 0.000 title claims abstract description 56
- 238000000034 method Methods 0.000 title claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 86
- 229920001971 elastomer Polymers 0.000 claims abstract description 16
- 238000003466 welding Methods 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims abstract description 7
- 238000004080 punching Methods 0.000 claims abstract description 6
- 229920002635 polyurethane Polymers 0.000 claims abstract description 5
- 239000004814 polyurethane Substances 0.000 claims abstract description 5
- 238000004140 cleaning Methods 0.000 claims abstract description 4
- 230000002093 peripheral effect Effects 0.000 claims abstract description 4
- 239000011440 grout Substances 0.000 claims description 12
- 238000005553 drilling Methods 0.000 claims description 7
- 238000010276 construction Methods 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 239000004746 geotextile Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims 1
- 229920006253 high performance fiber Polymers 0.000 claims 1
- 238000002347 injection Methods 0.000 abstract 1
- 239000007924 injection Substances 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention provides a method for installing a post-plugging type water stop steel plate on the back side of a subway deformation joint, which comprises the steps of firstly judging the amount of water leakage at the deformation joint, and if the amount of water leakage at the deformation joint is larger, pre-stopping water on a concrete structure on the peripheral side of the deformation joint in a punching and grouting mode; preparing a water stop steel plate, a rubber cushion and a rubber slab; cleaning the concrete surface in the range of two sides of the deformation joint; installing a water stop steel plate, wherein the center of the water stop steel plate is opposite to the center of the deformation joint, the side edge of the water stop steel plate is pressed by a rubber cushion, and a steel backing plate and a rubber cushion plate are sequentially laid between the expansion bolt and the water stop steel plate; welding joints between the installed adjacent water stop steel plates to form closed loops, and welding 4 branch heads on each water stop steel plate; and (3) injecting hydrophilic polyurethane grouting material into the water-stop steel plate from the 4-branch head from bottom to top, and performing supplementary grouting on the part with water seepage 3-5 days after the completion of the injection until no leakage is achieved.
Description
Technical Field
The invention belongs to the technical field of subway water stopping, and particularly relates to a method for installing a rear plugging type water stopping steel plate on the back side of a subway deformation joint.
Background
In subway engineering, the waterproof grade of a subway station is one grade, water seepage is not allowed, and the surface of a structure is free of wet stain; the subway section has a two-stage waterproof grade, water leakage is not allowed, and a small amount of wet stains can be formed on the surface of the structure; in recent years, with the rapid development of national subway construction, the water leakage phenomenon caused by the reasons of design, construction, waterproof material quality and the like is all the most difficult to treat due to the water leakage at the deformation joint, and the problem of water leakage again in a short time due to the expansion and contraction quantity at the deformation joint according to a conventional treatment method is caused.
The existing technique for stopping water leakage at deformation joint is to embed a long needle along the deformation joint circle, seal and ring the outer side with water leakage, inject hydrophilic polyurethane grouting material into the deformation joint through the long needle after the water leakage reaches the specified strength, and the grouting material and water undergo chemical reaction to foam the volume expansion, so as to stop the water leakage passage to achieve the purpose of stopping water. Current movement joint department leaking stoppage technique can reach the effect of stagnant water in short time, but movement joint department has small flexible volume, especially northern area, the four seasons are clear every year, underground structure also can be because of the temperature produces expend with heat and contract with cold phenomenon, lead to the flexible volume increase of movement joint department, the rigidity shutoff of leaking through the water in the prior art outside, movement joint department in case produces flexible volume, the rigidity shutoff will become invalid, lead to movement joint department to leak again, the subway station can cause customer's complaint, the interval can lead to the contact net to touch water and cause the vehicle phenomenon of stopping transport.
Disclosure of Invention
The invention aims to provide a method for installing a rear plugging type water stop steel plate on the back side of a subway deformation joint.
The technical scheme of the invention is that the method for installing the rear plugging type water stop steel plate on the back side of the subway deformation joint comprises the following steps:
the method comprises the following steps: before construction, the amount of water leakage at the deformation joint is judged, if the amount of water leakage at the deformation joint is large, water is required to be pre-stopped for the concrete structure on the peripheral side of the deformation joint in a punching and grouting mode, and then the following steps are carried out; if the water leakage amount at the deformation joint is small, directly performing the following steps;
step two: preparing a water stop steel plate with the specification of 500mm x 2000mm, a rubber cushion with the width of 100mm and the thickness of 5mm and a rubber plate with the width of 60mm x 8 cm;
step three: cleaning the concrete surface within the range of 300mm on the left side and the right side by taking the deformation joint as the center, leveling the concave part without leakage of water, and leveling the convex part by using an electric pick;
step four: according to the sequence from bottom to top, an electric hammer and an expansion bolt are utilized to sequentially mount a water stop steel plate on a concrete structure at the side edge of a bottom plate deformation joint, two side plate deformation joints and a top plate deformation joint, the center of the water stop steel plate is opposite to the center of the deformation joint, the side edge of the water stop steel plate is pressed with a rubber gasket with the width of 100mm and the thickness of 5mm, and a steel base plate with the thickness of 5mm and a rubber gasket with the thickness of 60mm 8cm are sequentially laid between the expansion bolt and the water stop steel plate;
step five: welding joints between adjacent water stop steel plates installed in the fourth step to form closed loops, and welding 4 branch heads on each water stop steel plate;
step six: according to the installation sequence of the water-stop steel plate, hydrophilic polyurethane grouting material is injected into the water-stop steel plate from the 4-branch head from bottom to top, and the water-seepage place is subjected to grouting repair after the grouting is completed for 3-5 days until no leakage is achieved.
Further, the process of drilling and grouting in the first step is as follows: drilling the concrete structure through a water drill with the diameter of phi 40 to form grouting holes, wherein at least two grouting holes are arranged, one grouting hole is used for grouting, and the other grouting hole is used for draining water and checking whether grouting is in place; the grouting is performed according to the sequence of low and high, the grouting pipe is a phi 32 steel pipe, a grout stop valve is installed at the tail of the grouting pipe, a threaded joint is manufactured, after drilling is completed, the grouting pipe is installed manually, in order to prevent grout leakage between the grouting pipe and an orifice gap, geotextile is filled in a gap between the grouting pipe and the orifice, then grout liquid is injected outside the structure through the grouting pipe, a micro-expanding agent is added, the grouting pressure is not more than 0.3MPa, after each grouting, the grout stop valve is closed, and the pipeline is screwed down and then connected with another grouting pipe for continuous grouting.
Furthermore, the specification of the expansion bolt in the fourth step is M16 expansion bolt, and the adjacent distance between the adjacent expansion bolts is 150 mm.
The invention adopting the technical scheme can bring the following beneficial effects: the installation method of the subway deformation joint back-side rear plugging type water stop steel plate can establish non-rigid plugging between the water stop steel plate and a concrete structure at a deformation joint, fully considers the expansion amount at the deformation joint, and has the characteristics of simplicity and convenience in construction, convenience in maintenance and long service life.
Detailed Description
The installation method of the back plugging type water stop steel plate on the back side of the subway deformation joint is characterized by comprising the following steps of:
the method comprises the following steps: before construction, the amount of water leakage at the deformation joint is judged, if the amount of water leakage at the deformation joint is large, water is required to be pre-stopped for the concrete structure on the peripheral side of the deformation joint in a punching and grouting mode, and then the following steps are carried out; if the water leakage amount at the deformation joint is small, directly performing the following steps;
step two: preparing a water stop steel plate with the specification of 500mm x 2000mm, a rubber cushion with the width of 100mm and the thickness of 5mm and a rubber plate with the width of 60mm x 8 cm;
step three: cleaning the concrete surface within the range of 300mm on the left side and the right side by taking the deformation joint as the center, leveling the concave part without leakage of water, and leveling the convex part by using an electric pick;
step four: according to the sequence from bottom to top, an electric hammer and an expansion bolt are utilized to sequentially mount a water stop steel plate on a concrete structure at the side edge of a bottom plate deformation joint, two side plate deformation joints and a top plate deformation joint, the center of the water stop steel plate is opposite to the center of the deformation joint, the side edge of the water stop steel plate is pressed with a rubber gasket with the width of 100mm and the thickness of 5mm, and a steel base plate with the thickness of 5mm and a rubber gasket with the thickness of 60mm 8cm are sequentially laid between the expansion bolt and the water stop steel plate;
step five: welding joints between adjacent water stop steel plates installed in the fourth step to form closed loops, and welding 4 branch heads on each water stop steel plate;
step six: according to the installation sequence of the water-stop steel plate, hydrophilic polyurethane grouting material is injected into the water-stop steel plate from the 4-branch head from bottom to top, and the water-seepage place is subjected to grouting repair after the grouting is completed for 3-5 days until no leakage is achieved.
The process of punching and grouting in the first step is as follows: drilling the concrete structure through a water drill with the diameter of phi 40 to form grouting holes, wherein at least two grouting holes are arranged, one grouting hole is used for grouting, and the other grouting hole is used for draining water and checking whether grouting is in place; the grouting is performed according to the sequence of low and high, the grouting pipe is a phi 32 steel pipe, a grout stop valve is installed at the tail of the grouting pipe, a threaded joint is manufactured, after drilling is completed, the grouting pipe is installed manually, in order to prevent grout leakage between the grouting pipe and an orifice gap, geotextile is filled in a gap between the grouting pipe and the orifice, then grout liquid is injected outside the structure through the grouting pipe, a micro-expanding agent is added, the grouting pressure is not more than 0.3MPa, after each grouting, the grout stop valve is closed, and the pipeline is screwed down and then connected with another grouting pipe for continuous grouting.
The specification of the expansion bolt in the fourth step is M16 expansion bolt, and the adjacent distance between the adjacent expansion bolts is 150 mm.
Claims (5)
1. The installation method of the back plugging type water stop steel plate on the back side of the subway deformation joint is characterized by comprising the following steps of:
the method comprises the following steps: before construction, the amount of water leakage at the deformation joint is judged, if the amount of water leakage at the deformation joint is large, water is required to be pre-stopped for the concrete structure on the peripheral side of the deformation joint in a punching and grouting mode, and then the following steps are carried out; if the water leakage amount at the deformation joint is small, directly performing the following steps;
step two: preparing a water stop steel plate with the specification of 500mm x 2000mm, a rubber cushion with the width of 100mm and the thickness of 5mm and a rubber plate with the width of 60mm x 8 cm;
step three: cleaning the concrete surface within the range of 300mm on the left side and the right side by taking the deformation joint as the center, leveling the concave part without leakage of water, and leveling the convex part by using an electric pick;
step four: according to the sequence from bottom to top, an electric hammer and an expansion bolt are utilized to sequentially mount a water stop steel plate on a concrete structure at the side edge of a bottom plate deformation joint, two side plate deformation joints and a top plate deformation joint, the center of the water stop steel plate is opposite to the center of the deformation joint, the side edge of the water stop steel plate is pressed with a rubber gasket with the width of 100mm and the thickness of 5mm, and a steel base plate with the thickness of 5mm and a rubber gasket with the thickness of 60mm 8cm are sequentially laid between the expansion bolt and the water stop steel plate;
step five: welding joints between adjacent water stop steel plates installed in the fourth step to form closed loops, and welding 4 branch heads on each water stop steel plate;
step six: according to the installation sequence of the water-stop steel plate, hydrophilic polyurethane grouting material is injected into the water-stop steel plate from the 4-branch head from bottom to top, and the water-seepage place is subjected to grouting repair after the grouting is completed for 3-5 days until no leakage is achieved.
2. The method for installing the back plugging type water stop steel plate on the back side of the subway deformation joint according to claim 1, wherein the step I of punching and grouting comprises the following steps: drilling the concrete structure through a water drill with the diameter of phi 40 to form grouting holes, wherein at least two grouting holes are arranged, one grouting hole is used for grouting, and the other grouting hole is used for draining water and checking whether grouting is in place; the grouting is performed according to the sequence of low and high, the grouting pipe is a phi 32 steel pipe, a grout stop valve is installed at the tail of the grouting pipe, a threaded joint is manufactured, after drilling is completed, the grouting pipe is installed manually, in order to prevent grout leakage between the grouting pipe and an orifice gap, geotextile is filled in a gap between the grouting pipe and the orifice, then grout liquid is injected outside the structure through the grouting pipe, a micro-expanding agent is added, the grouting pressure is not more than 0.3MPa, after each grouting, the grout stop valve is closed, and the pipeline is screwed down and then connected with another grouting pipe for continuous grouting.
3. The method for installing the back blocking type water stop steel plate on the back surface side of the subway deformation joint as claimed in claim 1, wherein said expansion bolts in step four are M16 expansion bolts, and the distance between adjacent expansion bolts is 150 mm.
4. The method for installing the back side rear plugging type water stop steel plate of the subway deformation joint according to claim 1, wherein the judgment criteria of large water leakage amount and small water leakage amount in the first step are as follows: when the water leakage amount is more than or equal to 10L/h, the water leakage amount is larger, and when the water leakage amount is less than 10L/h, the water leakage amount is smaller.
5. The method for installing the subway deformation joint water-stop steel plate with the rear plugging on the back side of the water surface as claimed in claim 2, wherein the micro-expanding agent is an FS high-performance fiber expanding agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110670589.6A CN113339008A (en) | 2021-06-17 | 2021-06-17 | Method for installing subway deformation joint water-stopping steel plate with rear side plugging on back surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110670589.6A CN113339008A (en) | 2021-06-17 | 2021-06-17 | Method for installing subway deformation joint water-stopping steel plate with rear side plugging on back surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113339008A true CN113339008A (en) | 2021-09-03 |
Family
ID=77475805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110670589.6A Pending CN113339008A (en) | 2021-06-17 | 2021-06-17 | Method for installing subway deformation joint water-stopping steel plate with rear side plugging on back surface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113339008A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06341227A (en) * | 1993-06-01 | 1994-12-13 | Shimizu Corp | Water stop construction method for placing joint part of concrete structure |
| CN101372840A (en) * | 2007-08-21 | 2009-02-25 | 上海市建筑科学研究院(集团)有限公司 | Mounting method with detachable rubber water stop mounted inside |
| CN101864778A (en) * | 2010-06-30 | 2010-10-20 | 广东省基础工程公司 | Method for leaking stoppage of external wall of underground structure |
| CN105297782A (en) * | 2015-11-19 | 2016-02-03 | 东南大学 | Underground concrete structure expansion joint treatment structure and construction method thereof |
| CN105297743A (en) * | 2015-11-03 | 2016-02-03 | 中国电建集团华东勘测设计研究院有限公司 | Diaphragm wall defect leakage water stop and drainage structure and construction method thereof |
| CN106088364A (en) * | 2016-07-25 | 2016-11-09 | 浙江万达建设集团有限公司 | A kind of Novel underground room antiseep attachment structure and construction method thereof |
| CN109610504A (en) * | 2018-12-11 | 2019-04-12 | 中国铁路设计集团有限公司 | A kind of progressive regulation method of railway open trench tunnel lining deformation joints percolating water |
| CN210263442U (en) * | 2019-04-30 | 2020-04-07 | 江苏省科佳工程设计有限公司 | Deformation joint leakage repair structure |
| CN112878367A (en) * | 2021-01-23 | 2021-06-01 | 北京隧盾市政建设有限公司 | Method for treating water leakage of construction joint and crack of subway main structure |
| CN112900512A (en) * | 2021-01-25 | 2021-06-04 | 广州建筑产业开发有限公司 | Basement bottom plate crack punching, reinforcing and repairing construction method |
-
2021
- 2021-06-17 CN CN202110670589.6A patent/CN113339008A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06341227A (en) * | 1993-06-01 | 1994-12-13 | Shimizu Corp | Water stop construction method for placing joint part of concrete structure |
| CN101372840A (en) * | 2007-08-21 | 2009-02-25 | 上海市建筑科学研究院(集团)有限公司 | Mounting method with detachable rubber water stop mounted inside |
| CN101864778A (en) * | 2010-06-30 | 2010-10-20 | 广东省基础工程公司 | Method for leaking stoppage of external wall of underground structure |
| CN105297743A (en) * | 2015-11-03 | 2016-02-03 | 中国电建集团华东勘测设计研究院有限公司 | Diaphragm wall defect leakage water stop and drainage structure and construction method thereof |
| CN105297782A (en) * | 2015-11-19 | 2016-02-03 | 东南大学 | Underground concrete structure expansion joint treatment structure and construction method thereof |
| CN106088364A (en) * | 2016-07-25 | 2016-11-09 | 浙江万达建设集团有限公司 | A kind of Novel underground room antiseep attachment structure and construction method thereof |
| CN109610504A (en) * | 2018-12-11 | 2019-04-12 | 中国铁路设计集团有限公司 | A kind of progressive regulation method of railway open trench tunnel lining deformation joints percolating water |
| CN210263442U (en) * | 2019-04-30 | 2020-04-07 | 江苏省科佳工程设计有限公司 | Deformation joint leakage repair structure |
| CN112878367A (en) * | 2021-01-23 | 2021-06-01 | 北京隧盾市政建设有限公司 | Method for treating water leakage of construction joint and crack of subway main structure |
| CN112900512A (en) * | 2021-01-25 | 2021-06-04 | 广州建筑产业开发有限公司 | Basement bottom plate crack punching, reinforcing and repairing construction method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111485922B (en) | Method for treating water leakage, block falling and slurry turning of ELF railway tunnel | |
| CN201176640Y (en) | Grouting type expansion steel edge water-stop meet with water | |
| CN203429601U (en) | Sealing-up structure for intersection position of reservoir bank water-tight face plate and concrete gravity dam cross joint | |
| CN110878700A (en) | Tunnel waterproof structure and construction method thereof | |
| CN210946696U (en) | Dam concrete seepage-proofing panel seepage underwater repair combined structure | |
| CN205152995U (en) | Local seepage processing apparatus of underground continuous wall | |
| CN105297782A (en) | Underground concrete structure expansion joint treatment structure and construction method thereof | |
| CN202689047U (en) | Waterproof structure applied to construction joint in fabricated tube section of immersed tube | |
| CN113339008A (en) | Method for installing subway deformation joint water-stopping steel plate with rear side plugging on back surface | |
| CN113373962A (en) | Combined leaking stoppage construction method for deep foundation pit | |
| CN210341998U (en) | Novel post-cast strip structure | |
| CN215857878U (en) | Drainage structures is prevented in basement bottom plate post-cast strip | |
| CN108505545B (en) | Waterproof method for building foundation raft penetrating through underground pipe group | |
| CN214739268U (en) | Fishbone type high-pressure grouting steel inner column | |
| CN111878119B (en) | Subway tunnel ballast bed pipe piece wall post-grouting method | |
| CN214274717U (en) | Soft soil slot major diameter pipeline sharing support | |
| CN205205831U (en) | Ground even wall defect seepage ends drainage structures | |
| CN209741914U (en) | Immersed tube filled with construction waste inside for sea reclamation or bridge | |
| CN219196057U (en) | Strong-pressure plugging structure for expansion joint of basement roof | |
| CN104154324A (en) | Integrated mixed installation method of anchor blocks and valve well | |
| CN220599829U (en) | Leakage-proof device | |
| KR100441935B1 (en) | Devices of holding concrete form tie for water proof grouting | |
| CN220581884U (en) | Keep somewhere rigidity through-wall pipe waterproof construction | |
| CN221321021U (en) | Variable cross-section dewatering well penetrating through bottom plate in foundation pit | |
| CN117966779A (en) | Method for treating underground engineering leakage water without chiseling |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |