CN110670497A - Drainage structure of expansion joint of water delivery culvert pipe joint - Google Patents
Drainage structure of expansion joint of water delivery culvert pipe joint Download PDFInfo
- Publication number
- CN110670497A CN110670497A CN201911060519.8A CN201911060519A CN110670497A CN 110670497 A CN110670497 A CN 110670497A CN 201911060519 A CN201911060519 A CN 201911060519A CN 110670497 A CN110670497 A CN 110670497A
- Authority
- CN
- China
- Prior art keywords
- joint
- water
- filler
- expansion joint
- way valve
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 93
- 239000000945 filler Substances 0.000 claims abstract description 33
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 22
- 239000004746 geotextile Substances 0.000 claims abstract description 11
- 239000010410 layer Substances 0.000 claims description 11
- 230000008878 coupling Effects 0.000 claims description 8
- 238000010168 coupling process Methods 0.000 claims description 8
- 238000005859 coupling reaction Methods 0.000 claims description 8
- 229920002635 polyurethane Polymers 0.000 claims description 7
- 239000004814 polyurethane Substances 0.000 claims description 7
- 239000004568 cement Substances 0.000 claims description 5
- 239000000835 fiber Substances 0.000 claims description 5
- 239000002356 single layer Substances 0.000 claims description 5
- 239000010426 asphalt Substances 0.000 claims description 4
- 239000003973 paint Substances 0.000 claims description 4
- 229920000058 polyacrylate Polymers 0.000 claims description 4
- 239000011414 polymer cement Substances 0.000 claims description 4
- 244000025254 Cannabis sativa Species 0.000 claims description 3
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 claims description 3
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 claims description 3
- 235000009120 camo Nutrition 0.000 claims description 3
- 235000005607 chanvre indien Nutrition 0.000 claims description 3
- 239000011487 hemp Substances 0.000 claims description 3
- 239000011150 reinforced concrete Substances 0.000 description 13
- 239000000463 material Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000008159 sesame oil Substances 0.000 description 1
- 235000011803 sesame oil Nutrition 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F5/00—Draining the sub-base, i.e. subgrade or ground-work, e.g. embankment of roads or of the ballastway of railways or draining-off road surface or ballastway drainage by trenches, culverts, or conduits or other specially adapted means
- E01F5/005—Culverts ; Head-structures for culverts, or for drainage-conduit outlets in slopes
-
- 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
-
- 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
-
- 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
- E02D31/04—Watertight packings for use under hydraulic pressure
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Civil Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Mining & Mineral Resources (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Architecture (AREA)
- Lining And Supports For Tunnels (AREA)
- Sewage (AREA)
Abstract
The invention provides a hydrophobic structure of an expansion joint of a pipe joint of a water delivery culvert, wherein a water stop and a filler are fixed at the position of the expansion joint, a plurality of hoses are arranged in the filler along the circumferential direction of the expansion joint, a plurality of water inlet holes are arranged on the side wall of each hose at intervals along the length direction, and the hoses are wound by geotextile; two adjacent hoses are connected by two working ports of a tee joint, so that all the hoses are connected into a ring; the last working port of the tee joint penetrates through the filler towards the radial inner side of the expansion joint to extend and is connected with the water inlet end of the one-way valve, and the water outlet end of the one-way valve is communicated with the interior of the pipe joint. When the invention is applied to the water delivery tunnel rich in pressurized underground water, if the outside of the pipe joint is subjected to the pressure of the underground water, the underground water enters the hose through the water inlet hole, then is guided into the one-way valve through the tee joint and is discharged into the pipe joint, so that the water pressure outside the pipe joint is dredged, and the water-stopping filler is prevented from being damaged.
Description
Technical Field
The invention relates to a drainage structure of an expansion joint of a water delivery culvert pipe section.
Background
The expansion joint of the pipe joint of the water delivery tunnel is provided with the water-stopping filler, so that the water in the pipe joint is prevented from leaking outside the pipe joint from the outside of the expansion joint, and the water-stopping filler generally only has a one-way waterproof function.
In the water delivery tunnel rich in pressure underground water, under the pressure of the underground water outside the pipe joint, the underground water can permeate into the pipe joint through the expansion joint of the pipe joint, so that the water-stopping filler in the expansion joint is damaged, an inner and outer permeation channel of the pipeline is formed, and a large amount of water in the pipeline leaks out.
At present, to the above-mentioned circumstances, the mode that the intensity of reinforcing stagnant water filler, firmness are generally adopted to the technical staff in the field solves the problem, nevertheless because the width of expansion joint position can stretch out and draw back the change for intensity, elasticity and firmness can not be compromise to stagnant water filler, therefore the problem of seepage still can not thoroughly be solved.
Disclosure of Invention
In order to solve the problem that the filler is damaged, the invention provides the hydrophobic structure of the expansion joint of the water delivery culvert pipe joint, which achieves the purposes of protecting the water-stopping filler in the expansion joint and keeping the integrity and the compactness of the water-stopping filler by defibering the external water pressure of the expansion joint.
In order to achieve the purpose, the invention adopts the technical scheme that:
the utility model provides a hydrophobic structure at water delivery culvert pipe coupling expansion joint, is fixed with waterstop and filler, its characterized in that at the expansion joint position:
a plurality of hoses are arranged in the filler along the circumferential direction of the expansion joint, a plurality of water inlet holes are arranged on the side wall of each hose at intervals along the length direction, and the hoses are wound by geotextile;
two adjacent hoses are connected by two working ports of a tee joint, so that all the hoses are connected into a ring;
the last working port of the tee joint penetrates through the filler towards the radial inner side of the expansion joint to extend and is connected with the water inlet end of the one-way valve, and the water outlet end of the one-way valve is communicated with the interior of the pipe joint.
The hydrophobic structure at water delivery culvert pipe coupling expansion joint, wherein: the radial inner side of the filler is spaced from the inner wall of the pipe joint by 4-6 cm; and filling rapid hardening cement with the depth of 2-3 cm in the interval distance, and caulking polyurethane with the depth of 2-3 cm.
The hydrophobic structure at water delivery culvert pipe coupling expansion joint, wherein: and a waterproof layer is formed on the inner wall of the pipe joint by using acrylic polymer cement paint.
The hydrophobic structure at water delivery culvert pipe coupling expansion joint, wherein: the waterproof layer is gradually thickened at the position close to the water outlet end of the one-way valve and extends inwards along the side wall of the one-way valve.
The hydrophobic structure at water delivery culvert pipe coupling expansion joint, wherein: the filler is asphalt hemp.
The hydrophobic structure at water delivery culvert pipe coupling expansion joint, wherein: the geotextile is wound on the hose in a single layer of 100g/m2The staple fiber needle-punched non-woven geotextile.
The hydrophobic structure at water delivery culvert pipe coupling expansion joint, wherein: and the water outlet end of the one-way valve exceeds the inner wall of the pipe joint by 0.5-1.5 cm.
When the hydrophobic structure of the expansion joint of the water delivery culvert pipe section is applied to a water delivery tunnel rich in pressurized underground water, if the outside of the pipe section is subjected to the pressure of the underground water, the underground water enters the hose through the water inlet hole, is guided into the one-way valve through the tee joint and is discharged into the pipe section, so that the water pressure outside the pipe section is drained, and the water filler is prevented from being damaged; the water in the pipe joint can not enter the hose through the one-way valve, so that the problem of water leakage in the pipe joint is solved.
Drawings
Fig. 1 is a schematic view of the overall structure of a hydrophobic apparatus provided in the present invention.
FIG. 2 is an enlarged view of the hydrophobic means provided by the present invention in the three-way, one-way valve position.
Fig. 3 is a schematic structural view of the hydrophobic device provided by the present invention installed in an expansion joint.
Description of reference numerals: a reinforced concrete liner 1; a reinforced concrete secondary lining 2; an expansion joint 3; a tee joint 4; a check valve 5; a hose 6; an inlet hole 7; geotextile 8; a sleeve 9; a water stop 10; a filler 11; 12, quick-hardening cement; polyurethane caulking 13; and a waterproof layer 14.
Detailed Description
Some specific embodiments of the invention will be described in detail below, by way of example and not by way of limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale.
As shown in fig. 1 and 2, the water drainage structure of the expansion joint of the pipe joint of the water delivery culvert provided by the invention has the advantages that the water delivery culvert is provided with a tubular reinforced concrete liner 1 arranged on the peripheral side and used for bearing the earth pressure; a plurality of tubular reinforced concrete secondary linings 2 (namely the pipe joints) which are connected end to end are arranged in the reinforced concrete primary lining 1 and are used for water delivery; an expansion joint 3 (shown in figure 3) is formed at the connecting position of the reinforced concrete two linings 2;
at least four tee joints 4 are arranged at different circumferential positions of the expansion joint 3, the working ports of the tee joints 4 facing the radial inner side of the expansion joint 3 are connected with water inlet ends of check valves 5, the remaining two working ports of the tee joints 4 are sequentially connected through hoses 6 to form a ring shape, a plurality of water inlet holes 7 are formed in the side wall of each hose 6 at intervals along the length direction, the water outlet ends of the check valves 5 extend into the reinforced concrete secondary lining 2 along the radial direction, only water in the tee joints 4 is allowed to flow into the pipe joints, and water in the pipe joints is not allowed to flow into the tee joints 4.
As shown in figure 2, the invention is an enlarged view of the position of a three-way 4 and a one-way valve 5 of the drainage device, and in order to prevent fine stones and debris from entering a water inlet hole 7 to cause blockage, a single layer of 100g/m is wound outside a hose 62The short fiber needle-punched non-woven geotextile 8; the tee joint 4 is sleeved between a working port facing the radial inner side of the expansion joint 3 and the water inlet end of the one-way valve 59 are connected.
Referring to fig. 3, which is a schematic structural view of the drainage device installed in the expansion joint 3 according to the present invention, it can be seen from fig. 3 and fig. 1 that a (red copper) water stop 10 and a filler 11 (preferably asphalt hemp) are disposed at the position of the expansion joint 3, which is a common technical means, then a plurality of hoses 6 are disposed in the filler 11 along the circumferential direction of the expansion joint 3, a plurality of water inlet holes 7 are disposed on the side wall of the hoses 6 at intervals along the length direction, and the water inlet holes are 100g/m in a single layer2Winding the short fiber needle-punched non-woven geotextile 8; two adjacent hoses 6 are connected by two working ports of a tee joint 4, so that all the hoses 6 are connected into a ring; the last working hole of the tee joint 4 extends towards the radial inner side of the expansion joint 3 and is connected with a water inlet end of a one-way valve 5, and the water outlet end of the one-way valve 5 exceeds the inner wall of the reinforced concrete lining 1 by a certain length (generally 0.5-1.5 cm); filling filler 11 in the expansion joint 3 at the radial inner side of the tee joint 4 to a position 4-6 cm away from the inner wall of the reinforced concrete liner 1, filling rapid-hardening cement 12 with the depth of 2-3 cm in the expansion joint 3 to fix the position of the filler 11, and then caulking with polyurethane 13 with the depth of 2-3 cm, wherein the polyurethane material has the characteristics of good viscosity and elasticity, so that a good waterproof effect can be still provided when the expansion joint 3 is expanded; and a waterproof layer 14 made of acrylic polymer cement paint is further arranged on the inner wall of the reinforced concrete secondary lining 2 (the waterproof layer 14 at least covers the range of 30cm on each of the left side and the right side of the expansion joint 3, and the thickness of the waterproof layer is larger than 2.5mm), and the waterproof layer 14 gradually thickens at the position close to the water outlet end of the one-way valve 5 and extends inwards along the side wall of the one-way valve 5.
Therefore, the invention also provides a construction method of the hydrophobic structure of the expansion joint 3 of the water delivery culvert pipe section, which comprises the following steps:
arranging a (red copper) water stop 10 and a filler 11 (preferably asphalt and sesame oil) at the position of the expansion joint 3;
a plurality of hoses 6 are arranged on the inner side of the filler 11 along the circumferential direction, a plurality of water inlet holes 7 arranged at intervals along the length direction are preset on the side wall of each hose 6, and the hoses are pre-arranged in a single layer of 100g/m2Winding the short fiber needle-punched non-woven geotextile 8;
two adjacent hoses 6 are connected by two working ports of a tee joint 4, so that all the hoses 6 are connected into a ring;
the last working hole of the tee joint 4 extends towards the radial inner side of the expansion joint 3 and is connected with a water inlet end of a one-way valve 5, and a water outlet end of the one-way valve 5 exceeds the inner wall of the reinforced concrete lining 1 by a certain length (generally 0.5-1.5 cm);
filling filler 11 into the expansion joint 3 at the radial inner side of the tee joint 4 to a position 4-6 cm away from the inner wall of the reinforced concrete liner 1; then, continuously filling rapid-hardening cement 12 with the depth of 2-3 cm in the expansion joint 3 to fix the position of the filler 11; finally, the polyurethane material with the depth of 2-3 cm is used for caulking 13, and the polyurethane material has the characteristics of good viscosity and elasticity, so that a good waterproof effect can be still provided when the expansion joint 3 is expanded and contracted;
and a waterproof layer 14 made of acrylic polymer cement paint is further arranged on the inner wall of the reinforced concrete secondary lining 2, and the waterproof layer 14 gradually thickens at a position close to the water outlet end of the one-way valve 5 and extends inwards along the side wall of the one-way valve 5.
When the hydrophobic structure of the expansion joint 3 of the water delivery culvert pipe joint obtained in the way is applied to a water delivery tunnel rich in pressurized underground water, if the outside of the pipe joint bears the pressure of the underground water, the underground water enters the hose 6 through the water inlet hole 7, then is guided into the one-way valve 5 through the tee joint 4 and is discharged into the pipe joint, so that the water pressure outside the pipe joint is drained, and the water filler 11 is prevented from being damaged; the water in the pipe joint can not enter the hose 6 through the one-way valve 5, so the problem of water leakage in the pipe joint can not exist.
Compared with the prior art, the invention adopts a new structure, method and thought to solve the problem of sealing the expansion joint 3 existing in the prior art for a long time.
Claims (7)
1. The utility model provides a hydrophobic structure at water delivery culvert pipe coupling expansion joint, is fixed with waterstop and filler, its characterized in that at the expansion joint position:
a plurality of hoses are arranged in the filler along the circumferential direction of the expansion joint, a plurality of water inlet holes are arranged on the side wall of each hose at intervals along the length direction, and the hoses are wound by geotextile;
two adjacent hoses are connected by two working ports of a tee joint, so that all the hoses are connected into a ring;
the last working port of the tee joint penetrates through the filler towards the radial inner side of the expansion joint to extend and is connected with the water inlet end of the one-way valve, and the water outlet end of the one-way valve is communicated with the interior of the pipe joint.
2. The hydrophobic structure of expansion joints of water delivery culvert pipe joints of claim 1, characterized in that: the radial inner side of the filler is spaced from the inner wall of the pipe joint by 4-6 cm; and filling rapid hardening cement with the depth of 2-3 cm in the interval distance, and caulking polyurethane with the depth of 2-3 cm.
3. The hydrophobic structure of the expansion joint of the water delivery culvert pipe section of claim 1 or 2, characterized in that: and a waterproof layer is formed on the inner wall of the pipe joint by using acrylic polymer cement paint.
4. The hydrophobic structure of expansion joints of water delivery culvert pipe joints of claim 3, characterized in that: the waterproof layer is gradually thickened at the position close to the water outlet end of the one-way valve and extends inwards along the side wall of the one-way valve.
5. The hydrophobic structure of expansion joints of water delivery culvert pipe joints of claim 1, characterized in that: the filler is asphalt hemp.
6. The hydrophobic structure of expansion joints of water delivery culvert pipe joints of claim 1, characterized in that: the geotextile is wound on the hose in a single layer of 100g/m2The staple fiber needle-punched non-woven geotextile.
7. The hydrophobic structure of expansion joints of water delivery culvert pipe joints of claim 1, characterized in that: and the water outlet end of the one-way valve exceeds the inner wall of the pipe joint by 0.5-1.5 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911060519.8A CN110670497A (en) | 2019-11-01 | 2019-11-01 | Drainage structure of expansion joint of water delivery culvert pipe joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911060519.8A CN110670497A (en) | 2019-11-01 | 2019-11-01 | Drainage structure of expansion joint of water delivery culvert pipe joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110670497A true CN110670497A (en) | 2020-01-10 |
Family
ID=69085552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911060519.8A Pending CN110670497A (en) | 2019-11-01 | 2019-11-01 | Drainage structure of expansion joint of water delivery culvert pipe joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110670497A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3038524A1 (en) * | 1980-10-11 | 1982-04-29 | Leschus, geb. Putsch, Hildegard, 5600 Wuppertal | Water bar or sealing strip for concrete joints - has integral grout tube for later injection of expanding grout to seal leaks |
| CN102635123A (en) * | 2012-05-09 | 2012-08-15 | 南通海洲建设集团有限公司 | Leaking stoppage priming device for deformation joint |
| KR101589702B1 (en) * | 2015-04-13 | 2016-01-28 | 김창겸 | Constructing Method Of Assistant Expansion Joint Of Bridge |
| CN108194136A (en) * | 2017-12-31 | 2018-06-22 | 中铁十九局集团第二工程有限公司 | Lining construction method |
| CN208167568U (en) * | 2017-10-16 | 2018-11-30 | 中交路桥建设有限公司 | Culvert of reinforced concrete preventing and controlling seepage structure |
| CN109208651A (en) * | 2018-10-30 | 2019-01-15 | 中建五局土木工程有限公司 | Underground engineering super-long structural body deformation joint waterproof/drainage structure construction method and structure |
| CN211228183U (en) * | 2019-11-01 | 2020-08-11 | 北京金河德汇科技发展有限公司 | Drainage structure of expansion joint of water delivery culvert pipe joint |
-
2019
- 2019-11-01 CN CN201911060519.8A patent/CN110670497A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3038524A1 (en) * | 1980-10-11 | 1982-04-29 | Leschus, geb. Putsch, Hildegard, 5600 Wuppertal | Water bar or sealing strip for concrete joints - has integral grout tube for later injection of expanding grout to seal leaks |
| CN102635123A (en) * | 2012-05-09 | 2012-08-15 | 南通海洲建设集团有限公司 | Leaking stoppage priming device for deformation joint |
| KR101589702B1 (en) * | 2015-04-13 | 2016-01-28 | 김창겸 | Constructing Method Of Assistant Expansion Joint Of Bridge |
| CN208167568U (en) * | 2017-10-16 | 2018-11-30 | 中交路桥建设有限公司 | Culvert of reinforced concrete preventing and controlling seepage structure |
| CN108194136A (en) * | 2017-12-31 | 2018-06-22 | 中铁十九局集团第二工程有限公司 | Lining construction method |
| CN109208651A (en) * | 2018-10-30 | 2019-01-15 | 中建五局土木工程有限公司 | Underground engineering super-long structural body deformation joint waterproof/drainage structure construction method and structure |
| CN211228183U (en) * | 2019-11-01 | 2020-08-11 | 北京金河德汇科技发展有限公司 | Drainage structure of expansion joint of water delivery culvert pipe joint |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111156032B (en) | Grouting pipe inserted section steel grouting reinforcement existing subway tunnel structure and method | |
| CN211228183U (en) | Drainage structure of expansion joint of water delivery culvert pipe joint | |
| CN111851599B (en) | House building basement waterproof structure and construction method | |
| US20080075538A1 (en) | Method and apparatus for repairing underground pipes | |
| CN109667586B (en) | Grouting method of double-layer well wall grouting system | |
| CN216518138U (en) | Vertical drainage system of shaft | |
| EP0297385B1 (en) | Pipeline rehabilitation method utilizing articulated gasketed joint pipe | |
| CN110670497A (en) | Drainage structure of expansion joint of water delivery culvert pipe joint | |
| CN110805008A (en) | Construction method of drainage structure of expansion joint of water delivery culvert pipe joint | |
| CN112096414A (en) | Lining segment for shield receiving engineering horizontal micro-freezing stratum and construction method thereof | |
| KR20060134754A (en) | Partial coating waterproof tunnel and there of method | |
| KR100901804B1 (en) | Tunnel leakage controlling method | |
| JP2003074114A (en) | Earthquake-resisting reclaiming method and earthquake- resisting reclaiming structure | |
| KR200465270Y1 (en) | A packer for sealing in the pipe | |
| CN211692510U (en) | Waterproof and drainage structure of assembled lining | |
| CN114607386A (en) | Single-layer well wall with connecting and water stopping structure and grouting system and construction method thereof | |
| CN212478002U (en) | Non-excavation prosthetic devices of inspection shaft | |
| CN210886973U (en) | Reinforced concrete round pipe culvert | |
| CN111236986A (en) | Waterproof and drainage structure of fabricated lining and construction method thereof | |
| CN220451030U (en) | Concrete sewage pipe system convenient to desilting | |
| CN219364227U (en) | Drainage blind ditch | |
| CN217107120U (en) | Subway station prevents drainage system | |
| KR20090043892A (en) | Method for standing water in branch pipe | |
| CN221372237U (en) | Horizontal precipitation device for high-water-content hypotonic stratum | |
| CN112302688B (en) | End plugging device suitable for back grouting of fabricated tunnel supporting structure and construction method thereof |
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 | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20220713 Address after: 102206 No. 2-4 Building of Jinhe Water State Council, Xishatun, Shahe Town, Changping District, Beijing Applicant after: Beijing Jinhe Ecological Technology Co.,Ltd. Address before: 102200 322, floor 3, building 11, yard 9, Huilongguan West Street, Changping District, Beijing Applicant before: Beijing Jinhe Dehui Technology Development Co.,Ltd. |
|
| TA01 | Transfer of patent application right |