CN220436240U - Water intake steel pipe installation structure of hydraulic tunnel underwater bank slope - Google Patents
Water intake steel pipe installation structure of hydraulic tunnel underwater bank slope Download PDFInfo
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- CN220436240U CN220436240U CN202321397743.8U CN202321397743U CN220436240U CN 220436240 U CN220436240 U CN 220436240U CN 202321397743 U CN202321397743 U CN 202321397743U CN 220436240 U CN220436240 U CN 220436240U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 113
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 41
- 239000010959 steel Substances 0.000 title claims abstract description 41
- 238000009434 installation Methods 0.000 title claims abstract description 24
- 238000010276 construction Methods 0.000 claims abstract description 25
- 239000004567 concrete Substances 0.000 claims abstract description 19
- 241001669679 Eleotris Species 0.000 claims description 12
- 238000004873 anchoring Methods 0.000 claims description 5
- 238000005192 partition Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 5
- 230000000903 blocking effect Effects 0.000 abstract description 2
- 210000001503 joint Anatomy 0.000 description 7
- 238000005266 casting Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000003032 molecular docking Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000011372 high-strength concrete Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
Classifications
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- 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
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- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The utility model provides a hydraulic tunnel underwater bank slope water taking steel pipe installation structure, wherein a water taking steel pipe comprises a horizontal section pipe section and a water taking pipe section which are arranged in a stepped mode, the horizontal section pipe section is connected with a valve arranged in a tunnel, and meanwhile, a concrete plug only allowing the horizontal section pipe section to extend out is arranged in the tunnel in a blocking mode; the water intake pipe sections are arranged along the bank slope trend and extend into the underwater designated elevation; the bank slope is provided with a temporary cofferdam in a rear-dismantling mode outside the horizontal section pipe section, and the elevation of the temporary cofferdam is higher than the water level of the bank, so that the horizontal section pipe section is fixed on the bank slope and is connected with the water intake pipe section in the later period. The utility model solves the problem that the water level is greatly influenced in the installation of the water intake steel pipe of the hydraulic tunnel bank slope in the prior art, can realize the underwater installation of the steel pipe under high water level, has simple and convenient operation method, can reduce the working time of a diver under water, and effectively improves the construction efficiency of the underwater installation.
Description
Technical Field
The utility model relates to the technical field of water conservancy and hydropower engineering, in particular to a hydraulic tunnel underwater bank slope water taking steel pipe mounting structure.
Background
At present, the construction of data centers by site selection close to reservoirs and hydropower stations has become an important development trend, not only can reliable electricity sources be provided by means of the hydropower stations, but also deep cold water in reservoirs can be taken as a water cooling medium to cool equipment, so that the energy consumption of a refrigerating system is greatly reduced, and the overall energy efficiency of the system is improved. The deep cooling water is taken from the reservoir, a hydraulic tunnel is required to be built on a bank slope of the reservoir, a water taking steel pipe is required to be paved, and in order to ensure the water taking water temperature and the water taking guarantee rate, the water taking depth is often set at the water depth of 40m below the dead water level of the reservoir, so that the water taking steel pipe is required to be stretched downwards to the underwater specified elevation for water taking.
In the actual construction process, because the reservoir water level adjustment and the power generation of the hydropower station are limited in multiple aspects, the ideal water level condition is difficult to adjust, the water level coordination period is long, the program is complex, and if the construction is only carried out by means of the coordinated water level, the project construction period is greatly influenced. And under the working condition of higher reservoir water level, the blasting penetration of hydraulic tunnel and the butt joint of horizontal section steel pipe and underwater steel pipe can not create dry construction and butt joint condition. Therefore, the underwater installation structure and the underwater installation method of the water taking steel pipe of the hydraulic tunnel bank slope are required to be designed, the water taking steel pipe can be installed under the condition that the reservoir water level cannot be adjusted and lowered, underwater butt joint and integral installation can be facilitated, the construction efficiency is improved, and the construction period is shortened.
Disclosure of Invention
The utility model aims to provide an installation structure which can meet the installation requirement of underwater water taking steel pipes without lowering the water level of a warehouse under the working condition of high water level and is convenient to install. For this purpose, the utility model adopts the following technical scheme:
the water intake steel pipe comprises a horizontal section pipe section and a water intake pipe section which are arranged in a stepped mode, wherein the horizontal section pipe section is connected with a valve arranged in a tunnel, and meanwhile, a concrete plug only allowing the horizontal section pipe section to extend out is arranged on the tunnel in a blocking mode; the water intake pipe sections are arranged along the bank slope trend and extend into the underwater designated elevation; the bank slope is in the outside back dismantlement formula of horizontal segment pipeline section sets up interim cofferdam, interim cofferdam elevation is higher than the storehouse water level, makes interim cofferdam encloses and establishes the scope and form to the dry ground construction area of horizontal segment pipeline section is in so that horizontal segment pipeline section is fixed on the bank slope, and later stage with the water intake pipe section is connected, horizontal segment pipeline section is in the outside interlude that sets up of concrete plug, the interlude includes the telescopic joint of intraductal closed replacement nozzle stub or intraductal flow formula, the telescopic joint is detachable change formula's construction handle accuse state to the replacement nozzle stub.
Further: the water taking pipe section comprises an inclined pipe which is obliquely arranged in the same direction as the bank slope; the water intake pipe section stretches into the end of the appointed elevation under water to set up the water intake head, the inclined tube with connect between the water intake head and be provided with first return bend, the horizontal segment pipeline section towards the end of the outer extension section of tunnel with connect between the inclined tube and set up the second return bend.
Further: the underwater support platform is arranged on the water taking head and connected with the water taking head, and an anchoring pile fixed with the bank slope is arranged on the underwater support platform.
Further: and a press pier connected with the inclined pipe is arranged on the bank slope.
Further: the length dimension of the telescopic joint is the same as that of the replacement short pipe.
Further: and a blind plate is arranged in the inner partition of the replacement short pipe.
Further: the horizontal section pipe section including set up in the outside first horizontal pipe of tunnel, be provided with the second horizontal pipe in the tunnel, the one end of second horizontal pipe stretches out concrete plug, first horizontal pipe with the second horizontal pipe passes through the interlude is connected or is linked together.
Further: and a sleeper beam is arranged outside the first horizontal pipe, so that the first horizontal pipe is fixed on the bank slope through the sleeper beam.
Compared with the prior art, the utility model has the following beneficial effects:
the utility model solves the problem that the water level is greatly influenced in the installation of the water intake steel pipe of the hydraulic tunnel bank slope in the prior art, can realize the underwater installation of the steel pipe under high water level, has simple and convenient operation method, can reduce the working time of a diver under water, and effectively improves the construction efficiency of the underwater installation. The underwater operation conditions can be created by step-by-step and sectional installation, the difficulty in adjusting the water level of the reservoir of the hydropower station is reduced by replacing the short pipe through the expansion joint, and the construction period of the control project is effectively controlled; meanwhile, the temporary cofferdam is arranged to create dry construction conditions of the first horizontal pipe and the replacement short pipe, so that the position and the angle of the steel pipe can be accurately adjusted, guidance is provided for underwater butt joint, and the underwater butt joint and installation construction are facilitated.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic view of a first segment of the present utility model;
FIG. 3 is a schematic view of a second segment of the present utility model;
FIG. 4 is a schematic diagram of the overall structure of the present utility model;
fig. 5 is a schematic diagram of the overall structure of the present utility model.
The marks in the drawings are: the underwater support platform 1, the anchor pile 2, the water taking head 3, the first bent pipe 4, the inclined pipe 5, the ballast 6, the second bent pipe 7, the first horizontal pipe 8, the sleeper beam 9, the replacement short pipe 10, the expansion joint 11, the flange 12, the second horizontal pipe 13, the steel pipe valve 14, the temporary cofferdam 15, the blind plate 16, the concrete plug 17, the tunnel 18 and the bank slope 19.
Detailed Description
The utility model is further illustrated by the following figures and examples, which are not intended to be limiting.
As shown in fig. 1-5, in the underwater bank slope water intake steel pipe installation structure of the hydraulic tunnel, the water intake steel pipe comprises a horizontal section pipe section and a water intake pipe section which are arranged in a stepped manner, the horizontal section pipe section is connected with a valve 14 arranged in a tunnel 18, and meanwhile, the tunnel 18 is blocked and provided with a concrete plug 17 only for extending out of the horizontal section pipe section; the water taking pipe sections are arranged along the trend of the bank slope 19 and extend into the designated underwater elevation; the bank slope 19 is provided with the temporary cofferdam 15 in a detachable mode outside the horizontal section pipe section so that the horizontal section pipe section is fixed on the bank slope 19 and is connected with the water intake pipe section in the later period, the elevation of the temporary cofferdam 15 is higher than the water level of the water intake pipe, the enclosing range of the temporary cofferdam 15 forms a dry land construction area for the horizontal section pipe section, the horizontal section pipe section is provided with an intermediate section outside the concrete plug 17, the intermediate section comprises a replacement short pipe 10 with a closed pipe inside or an expansion joint 11 with a general flow in the pipe, and the expansion joint 11 is in a detachable and replaceable construction handle control state for the replacement short pipe 10.
In this embodiment, a temporary cofferdam 15 is disposed between the second elbow pipe 7 and the first horizontal pipe 8, and a dry construction area formed by the temporary cofferdam 15 provides dry construction conditions such as on-shore for the first horizontal pipe 8 and the replacement short pipe 10, so that the position and angle of the horizontal section pipe section steel pipe can be adjusted more accurately, and guidance is provided for underwater docking of the water intake section steel pipe in the future, thereby being more convenient for underwater docking and installation construction.
Meanwhile, whether water is filled in the tunnel 18 or not can be controlled by replacing the short pipe 10 and the telescopic joint 11, so that corresponding underwater installation and construction requirements can be met under the high water level working condition without reducing the reservoir water level.
In which a recess is preferably provided in the middle section at the location of the replacement nipple 10 and expansion joint 11, in this region of the bank slope 19, for subsequent replacement.
As shown in fig. 1-3, in particular, the water intake pipe section includes an inclined pipe 5 disposed obliquely in the same direction as the bank slope 19; the water intake pipe section stretches into the water and sets up water intake head 3 in the tip of appointed elevation under water, and the connection is provided with first return bend 4 between inclined tube 5 and the water intake head 3, and the horizontal segment section extends the tip of section and is connected between inclined tube 5 to set up second return bend 7 towards tunnel 18.
In this embodiment, the flanges 12 can be used for butt joint and disassembly and replacement between all the pipes, thereby facilitating maintenance of the water intake steel pipe during the later operation. Wherein the inclined pipe 5 is connected with the first bent pipe 4 and the second bent pipe 7 through flanges 12 on the inclined pipe, and the water intake head 3 is connected with the first bent pipe 4 and the first horizontal pipe 8 and the second bent pipe 7 through flanges.
Wherein, be provided with the underwater supporting platform 1 who connects with it on the water intaking head 3, be provided with simultaneously on the underwater supporting platform 1 with bank slope 19 fixed anchor stake 2. The anchor pile 2 is formed by drilling rock-in casting epoxy concrete casting.
In this embodiment, before installation, the water intake pipe section is preset on the shore to form a section, and thereby the whole body convenient for construction and hoisting is formed, so that the inclined pipe 5, the water intake head 3 and the underwater supporting platform 1 can be spliced on the shore to be integrally hoisted, the difficulty of underwater docking work is reduced, and the construction efficiency is improved.
Wherein, be provided with the ballast 6 of being connected with the inclined tube 5 on the bank slope 19, the ballast 6 is pour in inclined tube 5 and bank slope 19 department of hugging closely, can pour a plurality of here. The ballast 6 is formed by casting anchor rods and concrete.
As shown in fig. 4-5, specifically, the telescopic joint 11 has the same length dimension as the replacement stub 10. And the replacement stub 10 is provided with flanges 12 as well as the two ends of the telescopic joint 11 so as to be in butt joint with the first horizontal pipe 8 and the second horizontal pipe 13.
As shown in fig. 4, one side of the inside of the replacement short tube 10 is blocked and provided with a blind plate 16 made of steel, so that the inside of the replacement short tube 10 is sealed to form a choke plug.
As shown in fig. 1 and 3, specifically, the horizontal pipe section includes a first horizontal pipe 8 disposed outside a tunnel 18, a second horizontal pipe 13 is disposed in the tunnel 18, one end of the second horizontal pipe 13 extends out of a concrete plug 17, and the first horizontal pipe 8 and the second horizontal pipe 13 are connected or communicated through an intermediate section.
Wherein, the outside of the first horizontal pipe 8 is provided with a sleeper beam 9, so that the first horizontal pipe 8 is fixed on the bank slope 19 through the sleeper beam 9. The sleeper beam 9 is formed by casting anchor rods and concrete. The corbel 9 also ensures the stability of the first level pipe 8 under water after the temporary cofferdam 15 has been removed by pre-fixing the first level pipe 8 and the bank 19 together in the dry construction area.
In the embodiment, the water taking steel pipe is firmly connected with the bank slope 19 through the arrangement of the anchoring piles 2, the ballast 6 and the sleeper beam 9, so that the water flow disturbance is prevented from deviating the water taking steel pipe, and the stability of the water taking steel pipe on the bank slope 19 in the water taking process is ensured;
referring to fig. 1-5, when the hydraulic tunnel underwater bank slope water intake steel pipe installation structure is constructed, the specific construction steps are as follows:
s1: size lofting: the length of the first horizontal pipe 8, the length of the inclined pipe 5, the length of the water taking head 3, the length of the replacement short pipe 10 and the length of the second horizontal pipe 13 are set out according to the field of drawings;
s2: building a temporary cofferdam 15: constructing a temporary cofferdam 15 at the junction of the first horizontal pipe 8 and the inclined pipe 5, and preventing water at the water level of the warehouse from flowing into the temporary cofferdam 15;
s3: splicing the underwater supporting platform 1: manufacturing a platform frame according to the required platform size, and installing the connection mode of each structure in the underwater supporting platform 1 device on shore;
s4: and (3) connecting water taking steel pipes: the first horizontal pipe 8, the replacement short pipe 10 and the second horizontal pipe 13 are connected in a flange manner to form a first section, and the inclined pipe 5, the water taking head 3 and the underwater supporting platform 1 are connected to form a second section;
s5: first section installation: draining water in the temporary cofferdam 15, and integrally installing and fixing the first section by adopting a crane according to the lofting position;
s6: pouring sleeper beams 9: pouring concrete which wraps the first horizontal pipe 8 outside the pipe section to form a sleeper beam 9;
s7: removing the temporary cofferdam 15: after the concrete strength of the sleeper beam 9 reaches a design value, removing the temporary cofferdam 15 by adopting a digger to expose the end head of the first horizontal pipe 8;
s8: and (3) hoisting the second section underwater: the second section is integrally lifted by the floating crane ship on water and is lifted on a bank slope 19 according to a set position, and the first horizontal pipe 8 and the inclined pipe 5 are butted with the flange 12 by a first bent pipe 4 under water by a diver to form connection;
s9: and (3) anchoring the anchoring piles 2: in order to stabilize the underwater support platform 1 of the bank slope, an anchor hole is drilled in a downward extending drill rod in a steel pipe pile of the underwater support platform 1 to put an anchor rod, and high-strength concrete mortar is filled in the anchor rod and the steel pipe pile;
s10: pouring a ballast 6: pouring concrete ballast 6 along the close position of the inclined tube 5 and the bank slope 19, and connecting the inclined tube 5 and the bank slope 19 through the ballast 6;
s11: casting a concrete plug 17 and mounting a valve 14: pouring a concrete plug 17 in a tunnel 18, and internally installing a valve 14 in the tunnel 18;
s12: replacement of telescopic joint 11: after valve 14 is closed, the diver replaces spool 10 with telescopic joint 11 under water.
The above embodiment is only one preferred technical solution of the present utility model, and it should be understood by those skilled in the art that modifications and substitutions can be made to the technical solution or parameters in the embodiment without departing from the principle and essence of the present utility model, and all the modifications and substitutions are covered in the protection scope of the present utility model.
Claims (8)
1. A hydraulic tunnel underwater bank slope water intaking steel pipe mounting structure which characterized in that: the water taking steel pipe comprises a horizontal section pipe section and a water taking pipe section which are arranged in a stepped mode, the horizontal section pipe section is connected with a valve (14) arranged in a tunnel (18), and meanwhile, the tunnel (18) is plugged and provided with a concrete plug (17) only for the horizontal section pipe section to extend out; the water intake pipe sections are arranged along the direction of a bank slope (19) and extend into the designated underwater elevation;
the bank slope (19) is provided with a temporary cofferdam (15) in a rear-dismantling mode outside the horizontal section pipe section, and the elevation of the temporary cofferdam (15) is higher than the water level of the water tank so as to fix the horizontal section pipe section on the bank slope (19) and be connected with the water intake pipe section in a later period;
the horizontal section pipe section is provided with a middle section outside the concrete plug (17), the middle section comprises a closed replacement short pipe (10) in the pipe or an expansion joint (11) with a flow-through type in the pipe, and the expansion joint (11) is in a detachable and replaceable construction handle control state for the replacement short pipe (10).
2. The hydraulic tunnel underwater bank slope water intake steel pipe mounting structure according to claim 1, wherein: the water taking pipe section comprises an inclined pipe (5) which is obliquely arranged in the same direction with the bank slope (19); the water intake pipe section stretches into the end of appointed elevation under water and sets up water intake head (3), inclined tube (5) with connect between water intake head (3) and be provided with first return bend (4), horizontal segment pipe section orientation tunnel (18) extend the end of section with connect between inclined tube (5) and set up second return bend (7).
3. The underwater bank slope water intake steel pipe installation structure of the hydraulic tunnel according to claim 2, wherein: the water taking head (3) is provided with an underwater supporting platform (1) connected with the water taking head, and an anchoring pile (2) fixed with the bank slope (19) is arranged on the underwater supporting platform (1).
4. The underwater bank slope water intake steel pipe installation structure of the hydraulic tunnel according to claim 2, wherein: the bank slope (19) is provided with a ballast (6) connected with the inclined pipe (5).
5. The hydraulic tunnel underwater bank slope water intake steel pipe mounting structure according to claim 1, wherein: the length dimension of the expansion joint (11) is the same as that of the replacement short pipe (10).
6. The hydraulic tunnel underwater bank slope water intake steel pipe mounting structure according to claim 1, wherein: and a blind plate (16) is arranged in the inner partition of the replacement short pipe (10).
7. The hydraulic tunnel underwater bank slope water intake steel pipe mounting structure according to claim 1, wherein: the horizontal section pipe section is including set up in outside first horizontal tube (8) of tunnel (18), be provided with second horizontal tube (13) in tunnel (18), the one end of second horizontal tube (13) stretches out concrete plug (17), first horizontal tube (8) with second horizontal tube (13) are through interlude connection or intercommunication.
8. The hydraulic tunnel underwater bank slope water intake steel pipe mounting structure of claim 7, wherein: a sleeper beam (9) is arranged outside the first horizontal pipe (8) so that the first horizontal pipe (8) is fixed on the bank slope (19) through the sleeper beam (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321397743.8U CN220436240U (en) | 2023-06-02 | 2023-06-02 | Water intake steel pipe installation structure of hydraulic tunnel underwater bank slope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321397743.8U CN220436240U (en) | 2023-06-02 | 2023-06-02 | Water intake steel pipe installation structure of hydraulic tunnel underwater bank slope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220436240U true CN220436240U (en) | 2024-02-02 |
Family
ID=89692848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321397743.8U Active CN220436240U (en) | 2023-06-02 | 2023-06-02 | Water intake steel pipe installation structure of hydraulic tunnel underwater bank slope |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220436240U (en) |
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2023
- 2023-06-02 CN CN202321397743.8U patent/CN220436240U/en active Active
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