CN110144913A - A kind of underwater prestress steel cofferdam device for tunnel water inlet of fetching water - Google Patents
A kind of underwater prestress steel cofferdam device for tunnel water inlet of fetching water Download PDFInfo
- Publication number
- CN110144913A CN110144913A CN201910261548.4A CN201910261548A CN110144913A CN 110144913 A CN110144913 A CN 110144913A CN 201910261548 A CN201910261548 A CN 201910261548A CN 110144913 A CN110144913 A CN 110144913A
- Authority
- CN
- China
- Prior art keywords
- water inlet
- steel cofferdam
- steel
- side wall
- tunnel
- 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 88
- 239000010959 steel Substances 0.000 title claims abstract description 88
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 79
- 238000007789 sealing Methods 0.000 claims description 19
- 210000004712 air sac Anatomy 0.000 claims description 18
- 238000010276 construction Methods 0.000 abstract description 4
- 238000001514 detection method Methods 0.000 abstract description 4
- 230000002787 reinforcement Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 4
- 208000005156 Dehydration Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/02—Restraining of open water
- E02D19/04—Restraining of open water by coffer-dams, e.g. made of sheet piles
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
A kind of underwater prestress steel cofferdam device for tunnel water inlet of fetching water, water inlet pipe (2) are provided on the water intaking tunnel (1), it is at the top of water inlet pipe (2) water inlet (3), water inlet pipe (2) top is provided with the steel cofferdam side wall (4) of cirque structure, steel cofferdam side wall (4) bottom is connect by chassis (5) with water inlet pipe (2) outer wall, is higher than horizontal plane (11) at the top of steel cofferdam side wall (4)；Circumferential direction has been evenly arranged several reinforced holes in steel cofferdam side wall (4), screw-thread steel (8) have been placed in reinforced hole, screw-thread steel (8) top stretches out in steel cofferdam side wall (4) top, screw-thread steel (8) bottom end is located at chassis (5) bottom, and screw-thread steel (8) top is provided with prestressing force locking device (14), screw-thread steel (8) bottom end is provided with forced locking device (15).During ensure that water intaking tunnel (1) detection with reinforcement operation water inlet (3) will not leak influence the safety of construction personnel.
Description
Technical field
It is more specifically to a kind of for the underwater pre- of tunnel water inlet of fetching water the present invention relates to a kind of steel cofferdam device
Stress steel cofferdam device, belongs to steel cofferdam technical field of construction.
Background technique
Tunnel is fetched water in the recirculated water water intake system of the industrial premises such as existing power plant after use after a period of time, is needed
It carries out structure detection and decides whether to reinforce according to testing result.And tunnel internal of fetching water must be after water body emptying
It just can be carried out detection operation and subsequent reinforcement construction, therefore, need a kind of water can be truncated and evacuate tunnel at water intaking tunnel both ends
The device of road internal water, to provide operating condition for water intaking Tunnel testing and reinforcing.
Summary of the invention
The demand that it is an object of the invention to reinforce for existing water intaking Tunnel testing provides a kind of for tunnel of fetching water
The underwater prestress steel cofferdam device of water inlet.
To achieve the above object, the technical solution of the invention is as follows: a kind of for the underwater pre- of tunnel water inlet of fetching water
Stress steel cofferdam device is provided with water inlet pipe 2 on the water intaking tunnel 1, is water inlet 3 at the top of the water inlet pipe 2, it is described into
2 top of water pipe is provided with the steel cofferdam side wall 4 of cirque structure, and 4 bottom of steel cofferdam side wall passes through chassis 5 and water inlet pipe
2 outer walls connect, and horizontal plane 11 is higher than at the top of steel cofferdam side wall 4.
Circumferential direction has been evenly arranged several reinforced holes in the steel cofferdam side wall 4, has placed spiral shell in the reinforced hole
Line steel 8,8 top of screw-thread steel stretch out in the top of steel cofferdam side wall 4, and 8 bottom end of screw-thread steel is located at 5 bottom of chassis, and screw-thread steel 8
Top is provided with prestressing force locking device 14, and 8 bottom end of screw-thread steel is provided with forced locking device 15.
The steel cofferdam side wall 4 of the cirque structure is formed by connecting by two semi-circular sidings by flange 6.
Air sac sealing circle I 7 is provided between two semi-circular sidings.
Air sac sealing circle II 9 is provided between the chassis 5 and steel cofferdam side wall 4.
Air sac sealing circle III 10 is provided between 2 outer wall of chassis 5 and water inlet pipe.
Compared with prior art, the beneficial effects of the present invention are:
1, the present invention ensure that water intaking Tunnel testing and reinforcement operation phase by forced locking device and the prestressed measure of application
Between water inlet will not leak influence construction personnel safety, for fetch water tunnel detection and reinforcing provide operating condition, solve
The problem of water inlet water flow of having determined is truncated.
2, present invention installation easy to disassemble, reusable rate are high.
Detailed description of the invention
Fig. 1 is water intake system schematic diagram in the present invention.
Fig. 2 is schematic structural view of the invention.
Fig. 3 is top view of the present invention.
In figure, tunnel 1 of fetching water, water inlet pipe 2, water inlet 3, steel cofferdam side wall 4, chassis 5, flange 6, air sac sealing circle I 7,
Screw-thread steel 8, air sac sealing circle II 9, air sac sealing circle III 10, horizontal plane 11, active well 12 of fetching water, riverbed 13, prestressing force locking
Device 14, forced locking device 15.
Specific embodiment
Below in conjunction with Detailed description of the invention and specific embodiment, the present invention is described in further detail.
Referring to Fig. 1 to Fig. 3, a kind of underwater prestress steel cofferdam device for tunnel water inlet of fetching water, the water intaking tunnel 1
On be provided with water inlet pipe 2, be water inlet 3 at the top of the water inlet pipe 2.2 top of water inlet pipe is provided with cirque structure
Steel cofferdam side wall 4,4 bottom of steel cofferdam side wall is connect by chassis 5 with 2 outer wall of water inlet pipe, at the top of steel cofferdam side wall 4
Higher than horizontal plane 11.
Referring to Fig. 1 to Fig. 3, circumferential direction has been evenly arranged several reinforced holes, the reinforcing bar in the steel cofferdam side wall 4
Screw-thread steel 8 is placed in hole, screw-thread steel 8 is slidably connected with reinforcing bar hole wall, and screw-thread steel 8 exists as 4 sets of track steel cofferdam side wall
On screw-thread steel 8, cofferdam side wall 4 can threadingly steel 8 be slided up and down；Several specific numbers herein are determining according to detailing requiments,
Usually 12 or more.8 top of screw-thread steel stretches out in the top of steel cofferdam side wall 4, and 8 bottom end of screw-thread steel is located at 5 bottom of chassis,
I.e. screw-thread steel 8 links together with chassis 5；And 8 top of screw-thread steel is provided with prestressing force locking device 14,8 bottom end of screw-thread steel is set
It is equipped with forced locking device 15.Steel cofferdam side wall 4 and chassis 5 in 5 tripping in water of chassis, will be made to be in close contact rear thread steel when use
8 by the two automatically lock, then applies prestressing force on 8 top of screw-thread steel, and steel cofferdam side wall 4 and chassis 5 are locked completely.
Referring to Fig. 1 to Fig. 3, the steel cofferdam side wall 4 of the cirque structure is connected by two semi-circular sidings by flange 6
It forms.Further, air sac sealing circle I 7 is provided between two semi-circular sidings.When two semi-annular wall plate closings and open
Begin after taking out the water in steel cofferdam, expand air sac sealing circle I 7 by pressure different inside and outside steel cofferdam, reaches hermetic seal effect
Fruit.
Referring to Fig. 1 to Fig. 3, air sac sealing circle II 9 is provided between the chassis 5 and steel cofferdam side wall 4.When chassis 5
It locks and starts after extracting the water in steel cofferdam with steel cofferdam side wall 4, air sac sealing is made by pressure different inside and outside steel cofferdam
II 9 expansions are enclosed, hermetic seal effect is reached.
Referring to Fig. 1 to Fig. 3, air sac sealing circle III 10 is provided between 2 outer wall of the chassis 5 and water inlet pipe.When steel encloses
Weir is closed completely and starts after extracting the water in steel cofferdam, keeps air sac sealing circle III 10 swollen by pressure different inside and outside steel cofferdam
It is swollen, reach hermetic seal effect.
Referring to Fig. 1 to Fig. 3, when use into the water by this steel cofferdam device, chassis 5 is made to be clamped on 3 or less 1m of water inlet
The position of~2m makes steel cofferdam side wall 4 and chassis 5 be in close contact rear thread steel 8 for the two automatically lock；By two semi-annular walls
After plate is connected by flange 6, apply prestressing force at the top of steel cofferdam side wall 4, so that entire steel cofferdam device be locked completely.Most
The water inside steel cofferdam is drained afterwards, air sac sealing circle I 7, II 9 and of air sac sealing circle are made by pressure different inside and outside steel cofferdam
Air sac sealing circle III 10 is expanded to achieve the effect that the complete sealing in all junctions.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that
Specific implementation of the invention is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs, exist
Under the premise of not departing from present inventive concept, a number of simple deductions or replacements can also be made, and above structure all shall be regarded as belonging to
Protection scope of the present invention.
Claims (6)
1. a kind of underwater prestress steel cofferdam device for tunnel water inlet of fetching water, it is provided on the water intaking tunnel (1) into water
It manages (2), is at the top of the water inlet pipe (2) water inlet (3), it is characterised in that: described water inlet pipe (2) top is provided with annulus
The steel cofferdam side wall (4) of shape structure, steel cofferdam side wall (4) bottom are connect by chassis (5) with water inlet pipe (2) outer wall,
It is higher than horizontal plane (11) at the top of steel cofferdam side wall (4).
2. a kind of underwater prestress steel cofferdam device for tunnel water inlet of fetching water according to claim 1, feature
Be: circumferential direction has been evenly arranged several reinforced holes in the steel cofferdam side wall (4), has placed screw thread in the reinforced hole
Steel (8), the screw-thread steel (8) top stretch out in steel cofferdam side wall (4) top, and screw-thread steel (8) bottom end is located at chassis (5) bottom,
And screw-thread steel (8) top is provided with prestressing force locking device (14), screw-thread steel (8) bottom end is provided with forced locking device (15).
3. a kind of underwater prestress steel cofferdam device for tunnel water inlet of fetching water according to claim 1, feature
Be: the steel cofferdam side wall (4) of the cirque structure is formed by connecting by two semi-circular sidings by flange (6).
4. a kind of underwater prestress steel cofferdam device for tunnel water inlet of fetching water according to claim 3, feature
It is: is provided with air sac sealing circle I (7) between two semi-circular sidings.
5. a kind of underwater prestress steel cofferdam device for tunnel water inlet of fetching water according to claim 1, feature
It is: is provided with air sac sealing circle II (9) between the chassis (5) and steel cofferdam side wall (4).
6. a kind of underwater prestress steel cofferdam device for tunnel water inlet of fetching water according to claim 1, feature
It is: is provided with air sac sealing circle III (10) between the chassis (5) and water inlet pipe (2) outer wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910261548.4A CN110144913A (en) | 2019-04-02 | 2019-04-02 | A kind of underwater prestress steel cofferdam device for tunnel water inlet of fetching water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910261548.4A CN110144913A (en) | 2019-04-02 | 2019-04-02 | A kind of underwater prestress steel cofferdam device for tunnel water inlet of fetching water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110144913A true CN110144913A (en) | 2019-08-20 |
Family
ID=67589417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910261548.4A Pending CN110144913A (en) | 2019-04-02 | 2019-04-02 | A kind of underwater prestress steel cofferdam device for tunnel water inlet of fetching water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110144913A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101245603A (en) * | 2008-01-23 | 2008-08-20 | 中国水利水电科学研究院 | Floating arch cofferdam and construction method |
| CN201254727Y (en) * | 2008-09-09 | 2009-06-10 | 武汉武大巨成加固实业有限公司 | Bridge stake underwater maintenance and construction cofferdam |
| US9797110B1 (en) * | 2016-06-14 | 2017-10-24 | Milani Construction, LLC | Cofferdam |
| CN207211170U (en) * | 2017-09-22 | 2018-04-10 | 中铁二十局集团有限公司 | Steel cofferdam prestress anchoraging device |
| CN108442371A (en) * | 2018-05-17 | 2018-08-24 | 中铁十六局集团第三工程有限公司 | One kind stake combination casing structure and its construction method suitable for Soft Clay water |
| CN210887253U (en) * | 2019-04-02 | 2020-06-30 | 武大巨成结构股份有限公司 | Underwater prestressed steel cofferdam device for water intake tunnel water inlet |
-
2019
- 2019-04-02 CN CN201910261548.4A patent/CN110144913A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101245603A (en) * | 2008-01-23 | 2008-08-20 | 中国水利水电科学研究院 | Floating arch cofferdam and construction method |
| CN201254727Y (en) * | 2008-09-09 | 2009-06-10 | 武汉武大巨成加固实业有限公司 | Bridge stake underwater maintenance and construction cofferdam |
| US9797110B1 (en) * | 2016-06-14 | 2017-10-24 | Milani Construction, LLC | Cofferdam |
| CN207211170U (en) * | 2017-09-22 | 2018-04-10 | 中铁二十局集团有限公司 | Steel cofferdam prestress anchoraging device |
| CN108442371A (en) * | 2018-05-17 | 2018-08-24 | 中铁十六局集团第三工程有限公司 | One kind stake combination casing structure and its construction method suitable for Soft Clay water |
| CN210887253U (en) * | 2019-04-02 | 2020-06-30 | 武大巨成结构股份有限公司 | Underwater prestressed steel cofferdam device for water intake tunnel water inlet |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 430223 Jucheng building, No.4, 1st Road, Wuda Science Park, Donghu New Technology Development Zone, Wuhan City, Hubei Province Applicant after: Wuhan Jucheng Structure Group Co.,Ltd. Address before: 430223 Jucheng building, No.4, 1st Road, Wuda Science Park, Donghu New Technology Development Zone, Wuhan City, Hubei Province Applicant before: WUDA JUCHENG STRUCTURE Co.,Ltd. |
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| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Gao Zuoping Inventor after: Tan Xingzhou Inventor after: Liao Jiehong Inventor after: Zhang Chang Inventor after: Lu Lingyue Inventor before: Gao Zuoping Inventor before: Zhou Jianbo Inventor before: Liao Jiehong Inventor before: Zhang Chang Inventor before: Lu Lingyue |
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190820 |