CN114541404B - Device and method for pouring damaged top arch joint of underwater tunnel - Google Patents
Device and method for pouring damaged top arch joint of underwater tunnel Download PDFInfo
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- CN114541404B CN114541404B CN202210058055.2A CN202210058055A CN114541404B CN 114541404 B CN114541404 B CN 114541404B CN 202210058055 A CN202210058055 A CN 202210058055A CN 114541404 B CN114541404 B CN 114541404B
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- shaped steel
- steel plate
- air inlet
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 37
- 239000010959 steel Substances 0.000 claims abstract description 37
- 239000004593 Epoxy Substances 0.000 claims abstract description 19
- 239000004744 fabric Substances 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000005266 casting Methods 0.000 claims abstract description 7
- 238000010276 construction Methods 0.000 claims description 10
- 230000007547 defect Effects 0.000 claims description 10
- 238000005553 drilling Methods 0.000 claims description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 238000004873 anchoring Methods 0.000 claims description 3
- 230000001680 brushing effect Effects 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 3
- 238000002513 implantation Methods 0.000 claims description 3
- 238000003892 spreading Methods 0.000 claims description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 230000008439 repair process Effects 0.000 abstract description 9
- 238000009415 formwork Methods 0.000 abstract description 3
- 230000007774 longterm Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
- E02D15/06—Placing concrete under water
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B9/00—Water-power plants; Layout, construction or equipment, methods of, or apparatus for, making same
- E02B9/02—Water-ways
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Mechanical Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention provides a device and a method for pouring damaged top arch joints of an underwater tunnel, wherein the device comprises a handheld rod, an air bag, an exhaust valve and an arc-shaped steel plate; the hand-held rod is provided with an air inlet channel, and the convex surface of the arc-shaped steel plate is upwards arranged at the top of the hand-held rod; the periphery of the top surface of the arc-shaped steel plate is provided with oily cloth to form a retractable or unfolding pouring bin; the air bags are connected with the air inlet channels and are positioned at two sides below the arc-shaped steel plates for supporting the arc-shaped steel plates after being inflated; the air inlet channel is also communicated with an exhaust valve. According to the device, epoxy concrete and anchor bars are placed in a pouring bin, the anchor bars are inserted into anchor holes after water is drained, the concrete enters the damaged part of the top arch joint, and the whole device helps divers to finish operation under the support of an inflatable airbag. The technical scheme solves the problem that the seam of the underwater top arch is damaged and is difficult to repair by vertical formwork casting concrete in the prior art, and the casting device has simple integral structure and simple operation method.
Description
Technical Field
The invention belongs to the technical field of hydraulic and hydroelectric engineering, and particularly relates to a device and a method for pouring damaged top arch joints of an underwater tunnel.
Background
Along with the development of the water conservancy industry, the hydraulic tunnel becomes an important hydraulic building for diversion, power generation and the like of the water conservancy junction. After long-term operation, hydraulic tunnel is washed by hydraulic overcurrent and is not free from concrete damage and cracks, and the like, and particularly for the joint part of the tunnel, in the construction stage, the construction process is not in place due to insufficient space and illumination in the construction in a narrow hole, the quality hidden danger is easily left for the treatment of the joint part, and the possibility of damage defect of the joint concrete is high due to long-term washing of water flow. During the operation of the hydraulic tunnel, if the joint of the tunnel is repaired in a dry way through emptying, the normal diversion of the hydraulic junction and the shutdown of the water turbine can be influenced, and the operation of the whole hydraulic junction is greatly influenced and the economic loss is caused.
In recent years, with the development of underwater construction technology, the repair of defects in a water filling state of an underwater tunnel is gradually and widely focused, and in the prior art, divers are adopted to carry out concrete backfilling construction on defective parts along the side walls of the tunnel. According to the method, for the damaged points of the side surface and the bottom surface of the tunnel, a diver can perform construction according to a normal underwater repair process, and repair of the damaged points of the top arch of the tunnel is performed, because the difficulty of setting up a formwork of the underwater top arch is high, the plumpness of concrete pouring of the top arch cannot be easily determined and can be judged only by experience, the internal pouring is easy to be not full, a cavity is easily formed, and the repair quality is seriously affected.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides the underwater tunnel roof arch seam damage pouring device, which is greatly convenient for a diver to repair the tunnel roof arch damage underwater and effectively ensures the repair pouring quality.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the utility model provides a broken pouring device of tunnel roof arch seam under water, includes handheld pole, gasbag, discharge valve and arc steel sheet; the handheld rod is provided with an air inlet channel, and the convex surface of the arc-shaped steel plate is upwards arranged at the top of the handheld rod; an oily cloth is arranged around the top surface of the arc-shaped steel plate to form a retractable or expandable pouring bin; the air bags are connected with the air inlet channel and are positioned on two sides below the arc-shaped steel plate for supporting the arc-shaped steel plate after being inflated; the air inlet channel is also communicated with the exhaust valve.
Further, four corners of the top surface of the arc-shaped steel plate are also provided with telescopic rods which are surrounded and connected by the oily cloth; the telescopic rod is used for supporting or retracting the pouring bin.
Further, the air bags are positioned at two sides of the handheld rod and are symmetrically arranged.
Further, the inside cavity of handheld pole and bottom are equipped with the air inlet and are used for connecting the intake pipe.
Further, the exhaust valve is located at the upper side of the hand-held rod.
The invention also provides a method for pouring the damaged top arch joint of the underwater tunnel, which is matched with the pouring device, so that the quality requirement of underwater concrete restoration can be met, the underwater construction efficiency can be improved, the underwater working time of a diver can be reduced, and the construction safety can be ensured.
The method for pouring the damaged top arch joint of the underwater tunnel comprises the following steps:
A. installing the pouring device: according to the arc degree of the tunnel top arch of the part to be repaired, blanking to manufacture an arc-shaped steel plate which is matched with the arc degree of the top arch, and installing according to the connection mode of each structure in the pouring device;
B. roof arch drilling: measuring the defect size of the top arch, and drilling holes in the center of the top arch defect by adopting an underwater hydraulic drill or an air drill according to different water depths;
C. and (3) blanking epoxy concrete, and inserting and fixing reinforcing steel bars: spreading the oily cloth on the shore, brushing a release agent on the inner side wall of the oily cloth, pouring epoxy concrete into the formed pouring bin according to the measured damage position, placing an anchor bar in the center of the pouring bin, and mounting an anchoring agent at the top of the anchor bar;
D. and (3) anchor bar positioning implantation: the diver is launched, a casting bin filled with epoxy concrete is inserted into the anchor holes by taking the anchor bars as guiding;
E. feeding: the diver uses the handheld rod to integrally push the pouring bin upwards, the oily cloth contracts, the epoxy concrete in the pouring bin enters the damaged part of the top arch joint, and the arc-shaped steel plate is tightly pressed and tightly shaped to be matched with the original tunnel; an air inlet at the bottom of the handheld rod is connected with an air inlet pipe through a quick connector to fully fill the air bag with air, and the arc-shaped steel plate is supported by the buoyancy of the air bag to be fixed at the damaged position of the top arch;
F. and (3) dismantling the device: after the poured epoxy concrete reaches the demolding condition, the diver opens the exhaust valve, and after the gas in the air bag is exhausted, the pouring device falls down by means of gravity, and the diver takes down.
The invention has the beneficial effects that:
(1) The arc surface shape of the arc-shaped steel plate is prepared in advance according to the radian adjustment of the defect part of the top arch, so that the surface after the damaged pouring is consistent with the radian of the surface of the original tunnel, and the repairing success is ensured;
(2) The air bags on the handheld rods can provide buoyancy for the whole device after being inflated, a casting template is not required to be fixed by drilling stress, the casting device is ensured to be positioned at the top arch position and not to fall, the difficulty of underwater repair is greatly reduced, and the operation efficiency is improved;
(3) The telescopic rod is matched with the oily cloth to shrink, and then the concrete in the pouring bin is fully led into the defect part, so that the plumpness of concrete pouring can be effectively ensured, and the void and the cavity are avoided.
In conclusion, the problem that the underwater roof arch joint is damaged and the concrete is difficult to repair by vertical formwork pouring is solved, the whole structure of the pouring device is simple, the operation method is simple and convenient, the working time of a diver in an underwater tunnel can be reduced by matching with the repairing method, and the pouring construction efficiency of the underwater damaged concrete is effectively improved.
Drawings
Fig. 1 is a schematic structural view of a casting device according to the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Reference is made to the accompanying drawings. The device for pouring the damaged top arch seam of the embodiment comprises a handheld rod 1, an air bag 2, an exhaust valve 3, an arc-shaped steel plate 4, a telescopic rod 5 and oily cloth 6. An air inlet channel is arranged in the handheld rod 1, and the convex surface of the arc-shaped steel plate 4 is upwards arranged at the top of the handheld rod 1 and the middle part of the arc-shaped steel plate 4 at the connecting part. Specifically, the arc-shaped steel plate 4 is consistent with the arc of the tunnel roof arch to be repaired. The four corners of the top surface of the arc-shaped steel plate 4 are respectively provided with a telescopic rod 5 which moves along the vertical direction, and the four peripheries of the top surface of the arc-shaped steel plate 4 are provided with oily cloth 6 which seals the telescopic rods 5. When the telescopic rod 5 is extended, the oiliness cloth 6 is unfolded and forms a pouring bin 7 with the arc-shaped steel plate 4 for loading the epoxy concrete 8 and the anchor bars 9, and the diameter of the anchor bars 9 is smaller than the inner diameter of the anchor holes 11; when the telescopic rod 5 is contracted, the oilcloth 6 is folded together.
The air bags 2 are arranged on two sides of the middle part of the hand-held rod 1 and are communicated with the air inlet channel. The air bags 2 are symmetrically arranged below the arc-shaped steel plates 4 and used for better supporting the arc-shaped steel plates 4 after being inflated, so that the operation is convenient. The upper side of the hand-held lever 1 is provided with an exhaust valve 3 which communicates with the intake passage as well.
The bottom end of the hand-held rod 1 is provided with an air inlet 13, and the air inlet 13 can be connected with an air inlet pipe 15 through a quick connector 14.
The application method of the embodiment is as follows:
1) Device mounting
In the embodiment, the arc-shaped length of the defect size of the top arch joint 12 is 30cm, the width of the joint is 10cm, the depth of the joint is 5cm, and according to the arc degree of the tunnel top arch of the part to be repaired, an arc-shaped steel plate 4 matched with the arc-shaped steel plate is manufactured by blanking, and all the parts are connected and installed.
2) Roof arch drilling
And drilling holes by adopting an underwater hydraulic drill at the center position of the damage of the top arch, wherein the aperture phi of the anchor hole 11 is 12mm.
3) Epoxy concrete blanking, inserting and fixing anchor bars
Stretching the telescopic rod 5 of the pouring bin 7 on the shore, spreading the oily cloth 6 immediately, brushing a release agent on the inner side wall of the oily cloth 6, and coating the epoxy concrete 8 by about 0.0015m according to the measured size of the damaged part 3 Pouring the mixture into a pouring bin 7, placing an anchor bar 9 with the diameter of 10mm in the center of the bin, and installing an underwater special anchoring agent 10 at the top of the anchor bar 9.
4) Anchor bar positioning implantation
The diver is launched to insert the pouring bin 7 filled with the epoxy concrete 8 into the anchor holes 11 by taking the anchor bars 9 as guiding.
5) Epoxy concrete feeding and air bag air inlet floating support
The diver uses the hand-held rod 1 to integrally push the pouring bin 7 upwards, the telescopic rod 5 and the oily cloth 6 shrink immediately, epoxy concrete 8 in the pouring bin 7 enters the damaged position of the top arch seam, the arc-shaped steel plate 4 is tightly pressed with the original tunnel to be in close fit, the air inlet 13 at the bottom of the hand-held rod 1 is connected with the quick connector 14, the air inlet pipe 15 is connected with the air bag 2 to be filled with air, and the arc-shaped steel plate 4 is supported by the buoyancy of the air bag 2 to be fixed at the damaged position of the top arch. The air bag 2 of the embodiment can generate 5kg buoyancy to meet the weight of the supporting device and the epoxy concrete 8.
6) Device removal
After the poured epoxy concrete 8 reaches the demolding condition, the diver opens the exhaust valve 3 of the device, and after the air in the air bag 2 is exhausted, the device falls down by gravity, and the diver takes down the device to be dismantled.
It should be noted that the foregoing describes embodiments of the present invention. However, it will be understood by those skilled in the art that the present invention is not limited to the above-described embodiments, which are described merely to illustrate the principles of the invention, and that various changes and modifications may be made therein without departing from the scope of the invention as claimed.
Claims (5)
1. The method is characterized in that the following underwater tunnel top arch seam damage pouring device is adopted for construction, and the underwater tunnel top arch seam damage pouring device comprises a handheld rod, an air bag, an exhaust valve and an arc-shaped steel plate; the handheld rod is provided with an air inlet channel, and the convex surface of the arc-shaped steel plate is upwards arranged at the top of the handheld rod; an oily cloth is arranged around the top surface of the arc-shaped steel plate to form a retractable or expandable pouring bin; the air bags are connected with the air inlet channel and are positioned on two sides below the arc-shaped steel plate for supporting the arc-shaped steel plate after being inflated; the air inlet channel is also communicated with the exhaust valve;
the method comprises the following steps:
A. installing the pouring device: according to the arc degree of the tunnel top arch of the part to be repaired, blanking to manufacture an arc-shaped steel plate which is matched with the arc degree of the top arch, and installing according to the connection mode of each structure in the pouring device;
B. roof arch drilling: measuring the defect size of the top arch, and drilling holes in the center of the top arch defect by adopting an underwater hydraulic drill or an air drill according to different water depths;
C. and (3) blanking epoxy concrete, and inserting and fixing reinforcing steel bars: spreading the oily cloth on the shore, brushing a release agent on the inner side wall of the oily cloth, pouring epoxy concrete into the formed pouring bin according to the measured damage position, placing an anchor bar in the center of the pouring bin, and mounting an anchoring agent at the top of the anchor bar;
D. and (3) anchor bar positioning implantation: the diver is launched, a casting bin filled with epoxy concrete is inserted into the anchor holes by taking the anchor bars as guiding;
E. feeding: the diver uses the handheld rod to integrally push the pouring bin upwards, the oily cloth contracts, epoxy concrete in the pouring bin enters the damaged part of the top arch joint, and the arc-shaped steel plate is tightly squeezed to be in fit with the original tunnel; an air inlet at the bottom of the handheld rod is connected with an air inlet pipe through a quick connector to fully fill the air bag with air, and the arc-shaped steel plate is supported by the buoyancy of the air bag to be fixed at the damaged position of the top arch;
F. and (3) dismantling the device: after the poured epoxy concrete reaches the demolding condition, the diver opens the exhaust valve, and after the gas in the air bag is exhausted, the pouring device falls down by means of gravity, and the diver takes down.
2. The method for pouring the damage to the top arch seam of the underwater tunnel according to claim 1, wherein four corners of the top surface of the arc-shaped steel plate are also provided with telescopic rods which are surrounded and connected by the oily cloth; the telescopic rod is used for supporting or retracting the pouring bin.
3. A method for pouring damaged roof arch joints of an underwater tunnel according to claim 1 or 2, wherein the air bags are symmetrically arranged on both sides of the hand-held rod.
4. A method for pouring a broken roof arch joint of an underwater tunnel according to claim 3, wherein the interior of the hand-held rod is hollow and the bottom end is provided with an air inlet for connecting an air inlet pipe.
5. A method of pouring a broken roof arch seam in an underwater tunnel as claimed in claim 3 wherein said vent valve is located on the upper side of said hand-held pole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210058055.2A CN114541404B (en) | 2022-01-19 | 2022-01-19 | Device and method for pouring damaged top arch joint of underwater tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210058055.2A CN114541404B (en) | 2022-01-19 | 2022-01-19 | Device and method for pouring damaged top arch joint of underwater tunnel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114541404A CN114541404A (en) | 2022-05-27 |
| CN114541404B true CN114541404B (en) | 2024-04-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210058055.2A Active CN114541404B (en) | 2022-01-19 | 2022-01-19 | Device and method for pouring damaged top arch joint of underwater tunnel |
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| Country | Link |
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| CN (1) | CN114541404B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1609384A (en) * | 2003-10-21 | 2005-04-27 | 丁德厚 | Submersible slip casting machine |
| CN101818500A (en) * | 2010-05-01 | 2010-09-01 | 张锦松 | Underwater plugging and water sealing method for bottom plate of concrete pouring jacket without back cover |
| CN102477743A (en) * | 2010-11-24 | 2012-05-30 | 张继红 | Construction method for concrete bagged pouring in small-diameter pile hole |
| CN108222089A (en) * | 2018-02-08 | 2018-06-29 | 中交四航工程研究院有限公司 | A kind of underwater wet method prosthetic device of concrete-pile defect and restorative procedure |
| CN111042232A (en) * | 2019-12-12 | 2020-04-21 | 三峡大学 | Device for debridement and crack repair of underwater film bag concrete wall and construction method |
| CN216999734U (en) * | 2022-01-19 | 2022-07-19 | 杭州国电大坝安全工程有限公司 | Damaged device of pouring of tunnel crown arch seam under water |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3740091B2 (en) * | 2002-05-22 | 2006-01-25 | 東洋建設株式会社 | Caisson joint repair method |
-
2022
- 2022-01-19 CN CN202210058055.2A patent/CN114541404B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1609384A (en) * | 2003-10-21 | 2005-04-27 | 丁德厚 | Submersible slip casting machine |
| CN101818500A (en) * | 2010-05-01 | 2010-09-01 | 张锦松 | Underwater plugging and water sealing method for bottom plate of concrete pouring jacket without back cover |
| CN102477743A (en) * | 2010-11-24 | 2012-05-30 | 张继红 | Construction method for concrete bagged pouring in small-diameter pile hole |
| CN108222089A (en) * | 2018-02-08 | 2018-06-29 | 中交四航工程研究院有限公司 | A kind of underwater wet method prosthetic device of concrete-pile defect and restorative procedure |
| CN111042232A (en) * | 2019-12-12 | 2020-04-21 | 三峡大学 | Device for debridement and crack repair of underwater film bag concrete wall and construction method |
| CN216999734U (en) * | 2022-01-19 | 2022-07-19 | 杭州国电大坝安全工程有限公司 | Damaged device of pouring of tunnel crown arch seam under water |
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|---|---|
| CN114541404A (en) | 2022-05-27 |
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