CN210086270U - A formula of falling bottom prestressing force cofferdam device under water for water intaking working well - Google Patents
A formula of falling bottom prestressing force cofferdam device under water for water intaking working well Download PDFInfo
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- CN210086270U CN210086270U CN201920437114.0U CN201920437114U CN210086270U CN 210086270 U CN210086270 U CN 210086270U CN 201920437114 U CN201920437114 U CN 201920437114U CN 210086270 U CN210086270 U CN 210086270U
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- water
- working well
- steel column
- steel
- cofferdam
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Abstract
The utility model provides a formula of falling to bottom prestressing force steel cofferdam device under water for water intaking working well, is connected with water intaking tunnel (1) on this water intaking working well (5), water intaking tunnel (1) on be provided with inlet tube (2), inlet tube (2) top be water inlet (3), be provided with semi-annular steel cofferdam (4) in the water intaking working well (5), semi-annular steel cofferdam (4) both ends respectively with water intaking working well (5) inner wall connection, steel cofferdam (4) bottom is fixed with water intaking working well (5) bottom, steel cofferdam (4) top is higher than horizontal plane (11). Guaranteed water intaking tunnel (1) and detected and reinforced (rfd) the operation period water inlet (3) department can not leak water influence constructor's safety, for the detection and the reinforcement of water intaking tunnel (1) provide the operating condition, solved the problem that water inlet department (3) rivers cut.
Description
Technical Field
The utility model relates to a steel cofferdam device, more specifically the formula of falling one's bottom prestressing force steel cofferdam device under water for water intaking working well that says so belongs to steel cofferdam construction technical field.
Background
After a water taking tunnel in a circulating water taking system of an existing industrial factory building such as a power plant is used for a period of time, structural detection is needed and whether reinforcement is needed or not is determined according to a detection result. The interior of the water taking tunnel can be detected and subsequently reinforced after the water body is emptied, and meanwhile, the water taking tunnel end is difficult to seal due to the large space and water depth of the water taking working well. Therefore, there is a need for a device that can cut off water at both ends of a water intake tunnel and evacuate water inside the tunnel, thereby providing operating conditions for detecting and reinforcing the water intake tunnel.
Disclosure of Invention
An object of the utility model is to current water intaking tunnel detects reinforced (rfd) demand, provides a formula of falling to the bottom prestressing force steel cofferdam device under water for water intaking working well.
In order to achieve the above object, the technical solution of the present invention is: the utility model provides a formula of falling bottom prestressing force steel cofferdam device under water for water intaking working well, this water intaking working well is last to be connected with the water intaking tunnel, the water intaking tunnel on be provided with the inlet tube, the inlet tube top be the water inlet, be provided with semi-annular steel cofferdam in the water intaking working well, semi-annular steel cofferdam both ends respectively with water intaking working well inner wall connection, steel cofferdam bottom is fixed with water intaking working well bottom, steel cofferdam top is higher than the horizontal plane.
And steel columns I are uniformly arranged on the outer wall of the steel cofferdam in the circumferential direction.
The steel column I outside corresponding be provided with steel column II, be provided with the steel column that floats between corresponding steel column I and the steel column II, the steel column that floats be connected through supporting I respectively with steel column I and steel column II, support I articulate mutually between with steel column I, steel column II and the steel column that floats respectively.
And the steel column II is connected with the inner wall of the water taking working well through a support II.
And air bag sealing rings are arranged between the two ends of the semi-annular steel cofferdam and the inner wall of the water taking working well.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses an increase the measure of steel column support system and guaranteed that water intaking tunnel detects and consolidates the operation period water inlet department can not leak the safety that influences constructor, for the detection in water intaking tunnel provides the operating condition with consolidating, has solved the problem that water inlet department rivers cut.
2. The utility model discloses convenient to detach installation, but reuse rate is high.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is the top view.
In the figure, a water taking tunnel 1, a water inlet pipe 2, a water inlet 3, a steel cofferdam 4, a water taking working well 5, a steel column I6, a steel column II 7, a floating steel column 8, a support I9, a support II 10, a horizontal plane 11, an air bag sealing ring 12 and a riverbed 13.
Detailed Description
The invention is described in further detail below with reference to the following description of the drawings and the detailed description.
Referring to fig. 1 to 2, a water intake tunnel 1 is connected to a water intake working well 5, a water inlet pipe 2 is arranged on the water intake tunnel 1, and a water inlet 3 is arranged at the top of the water inlet pipe 2. A semicircular steel cofferdam 4 is arranged in the water taking working well 5, two ends of the semicircular steel cofferdam 4 are respectively connected with the inner wall of the water taking working well 5, the bottom of the steel cofferdam 4 is fixed with the bottom of the water taking working well 5, and the top of the steel cofferdam 4 is higher than the horizontal plane 11. This kind of drop-bottom structure is generally adopted when the water intake working well 5 is not deep enough.
Referring to fig. 1 to 2, steel columns i 6 are uniformly arranged on the outer wall of the steel cofferdam 4 in the circumferential direction.
Referring to fig. 1 to 2, a steel column ii 7 is correspondingly arranged on the outer side of the steel column i 6, a floating steel column 8 is arranged between the corresponding steel column i 6 and the corresponding steel column ii 7, and the floating steel column 8 is connected with the steel column i 6 and the steel column ii 7 through a support i 9 respectively; the support I9 is respectively articulated with between I6, II 7 of steel column and the unsteady steel column 8, and support I9 can rotate along articulated node. When in use, the steel column I6 and the steel column II 7 are firstly put into the bottom of the water taking working well 5 and are fixedly connected with the bottom of the water taking working well 5; then, the floating steel column 8 is pressed downwards, and the downward pressure is transmitted to the steel column I6 and the steel column II 7 through the support I9, so that the steel column I6 tightly pushes the outer wall of the steel cofferdam 4 to form a stable system, and the purpose that the steel cofferdam 4 is tightly attached to the water taking working well 5 is achieved.
Referring to fig. 1 to 2, the steel column ii 7 is connected with the inner wall of the water taking working well 5 through a connecting plate 10. The support II 10 limits the displacement of the steel column II 7 in the horizontal direction, and the steel column I6, the steel column II 7, the floating steel column 8, the support I9 and the support II 10 form a stable and reliable connecting system with the water taking working well 5.
Referring to fig. 1 to 2, air bag sealing rings 12 are arranged between two ends of the semi-annular steel cofferdam 4 and the inner wall of the water taking working well 5. When the steel cofferdam 4 is tightly attached to the water taking working well 5 and water in the steel cofferdam 4 begins to be pumped, the air bag sealing ring 12 is expanded through different pressures inside and outside the steel cofferdam 4, and the sealing and water stopping effects are achieved.
Referring to fig. 1 to 2, when in use, the semi-annular steel cofferdam 4 is firstly put into water, so that the bottom of the steel cofferdam 4 is fixedly connected with the bottom of the water-taking working well 5; set up steel column I6 and steel column II 7 again, make steel column I6 and II 7 bottoms of steel column all fix in water intaking working well 5 bottoms, press the floating steel column 8 downwards afterwards, decurrent pressure passes to steel column I6 and II 7 on through supporting I9 for steel column I6 top is tight steel cofferdam 4 outer wall, reaches the purpose that makes water intaking working well 5 hugged closely in steel cofferdam 4 with forming stable system. And finally, water in the steel cofferdam 4 is pumped to be dry, and the air bag sealing ring 12 is expanded by different pressures inside and outside the steel cofferdam 4 so as to achieve the effect of completely stopping water at all joints. Consequently the utility model discloses a measure that increases steel column support system has guaranteed that water intaking tunnel 1 detects and consolidates 3 departments of water inlet can not leak during the operation and influence constructor's safety, for water intaking tunnel 1's detection and reinforcement provide the operating condition, has solved the problem that 3 rivers of water inlet department cut.
The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, above-mentioned structure should all be regarded as belonging to the utility model discloses a protection scope.
Claims (5)
1. The utility model provides a formula of falling bottom prestressing force steel cofferdam device under water for water intaking working well, is connected with water intaking tunnel (1) on this water intaking working well (5), water intaking tunnel (1) on be provided with inlet tube (2), inlet tube (2) top be water inlet (3), its characterized in that: a semicircular steel cofferdam (4) is arranged in the water taking working well (5), two ends of the semicircular steel cofferdam (4) are respectively connected with the inner wall of the water taking working well (5), the bottom of the steel cofferdam (4) is fixed with the bottom of the water taking working well (5), and the top of the steel cofferdam (4) is higher than the horizontal plane (11).
2. The submerged prestressed cofferdam system for water intake working well according to claim 1, characterized in that: and steel columns I (6) are uniformly arranged on the outer wall of the steel cofferdam (4) in the circumferential direction.
3. The submerged prestressed cofferdam system for water intake working well according to claim 2, characterized in that: the steel column I (6) outside correspondingly be provided with steel column II (7), be provided with unsteady steel column (8) between corresponding steel column I (6) and the steel column II (7), unsteady steel column (8) be connected through supporting I (9) respectively with steel column I (6) and steel column II (7), support I (9) articulated mutually between with steel column I (6), steel column II (7) and unsteady steel column (8) respectively.
4. The submerged prestressed cofferdam system for water intake working well according to claim 3, characterized in that: and the steel column II (7) is connected with the inner wall of the water taking working well (5) through a support II (10).
5. The submerged prestressed cofferdam system for water intake working well according to claim 1, characterized in that: and air bag sealing rings (12) are arranged between the two ends of the semi-annular steel cofferdam (4) and the inner wall of the water taking working well (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920437114.0U CN210086270U (en) | 2019-04-02 | 2019-04-02 | A formula of falling bottom prestressing force cofferdam device under water for water intaking working well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920437114.0U CN210086270U (en) | 2019-04-02 | 2019-04-02 | A formula of falling bottom prestressing force cofferdam device under water for water intaking working well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210086270U true CN210086270U (en) | 2020-02-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920437114.0U Withdrawn - After Issue CN210086270U (en) | 2019-04-02 | 2019-04-02 | A formula of falling bottom prestressing force cofferdam device under water for water intaking working well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210086270U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110004957A (en) * | 2019-04-02 | 2019-07-12 | 武大巨成结构股份有限公司 | A kind of underwater prestress steel cofferdam device of lowering heartn type for active well of fetching water |
-
2019
- 2019-04-02 CN CN201920437114.0U patent/CN210086270U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110004957A (en) * | 2019-04-02 | 2019-07-12 | 武大巨成结构股份有限公司 | A kind of underwater prestress steel cofferdam device of lowering heartn type for active well of fetching water |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20200218 Effective date of abandoning: 20220225 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20200218 Effective date of abandoning: 20220225 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |