CN203866796U - Underground full steel ladle air cushion type surge chamber structure - Google Patents
Underground full steel ladle air cushion type surge chamber structure Download PDFInfo
- Publication number
- CN203866796U CN203866796U CN201420174331.2U CN201420174331U CN203866796U CN 203866796 U CN203866796 U CN 203866796U CN 201420174331 U CN201420174331 U CN 201420174331U CN 203866796 U CN203866796 U CN 203866796U
- Authority
- CN
- China
- Prior art keywords
- surge chamber
- air cushion
- cushion type
- underground
- steel
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- 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.)
- Expired - Fee Related
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 40
- 239000010959 steel Substances 0.000 title claims abstract description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000011435 rock Substances 0.000 claims abstract description 15
- 230000004888 barrier function Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
Classifications
-
- 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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- Earth Drilling (AREA)
Abstract
The utility model relates to an underground full steel ladle air cushion type surge chamber structure. The underground full steel ladle air cushion type surge chamber structure aims to lower the requirement for the burying depth of a surge chamber, make the application of the air cushion type surge chamber in a shallow burying section to be possible and enlarge the application range of the air cushion type surge chamber. According to the technical scheme and the underground full steel ladle air cushion type surge chamber structure, high-pressure water and high-pressure air in the air cushion type surge chamber are sealed in a steel liner together and are not in direct contact with surrounding rock. The underground full steel ladle air cushion type surge chamber structure comprises the tunnel-shaped surge chamber buried underground, wherein one end of the tunnel-shaped surge chamber is connected with a water diversion tunnel, and the other end of the tunnel-shaped surge chamber is provided with a steel choke plug. The underground full steel ladle air cushion type surge chamber structure is characterized in that the circular pipe type steel liner is arranged on the inner layer of the surge chamber in the full length range, a connecting pipe filled with the high-pressure water is arranged on the lower half portion of the steel liner, and an air chamber filled with the high-pressure air is formed in the upper half portion of the steel liner, and plain concrete is backfilled between the steel liner and the surrounding rock. The underground full steel ladle air cushion type surge chamber structure is suitable for water conservancy and hydropower projects.
Description
Technical field
The utility model relates to air cushion type pressure balance chamber, especially a kind of underground all steel bag air cushion type pressure balance chamber structure.Be applicable to Hydraulic and Hydro-Power Engineering.
Background technology
Air cushion type pressure balance chamber is a kind of closed air chamber being surrounded by crag and the water surface in rock mass, it utilizes air chamber inner high voltage air formation " air cushion " to suppress indoor height of water level and water-level fluctuation amplitude, a kind of control water hammer of superior performance and the facility of bore, compare with conventional surge-chamber, have easy construction, immigrant less, the plurality of advantages such as, construction investment province little to ambient influnence.
At present both at home and abroad built or be to utilize country rock carrying at the common ground of the air cushion type pressure balance chamber of building, pressure-air or water under high pressure act directly on country rock, anti-criterion, minimally stress criterion, the seepage stability criterion " three large criterions " of lifting that need meet country rock carrying, has relatively high expectations to the buried depth of surge-chamber, geological conditions, region geostatic stress level, country rock impermeability.
Quickening along with hydroelectric development process, the geological conditions that engineering is faced is day by day complicated, particularly when surge-chamber buried depth is more shallow, geological conditions is poor, geostatic stress level is lower but bear interior pressure when higher, above condition is often difficult to meet, make a lot of engineerings have to give up air cushion type pressure balance chamber scheme, restricted applying of air cushion type pressure balance chamber.
Summary of the invention
The technical problems to be solved in the utility model is: the design concept of draw pressure steel pipe, a kind of underground all steel bag air cushion type pressure balance chamber structure is provided, and be intended to reduce the requirement to surge-chamber buried depth, make air cushion type pressure balance chamber become possibility in the application in shallow embedding location; Reduce the requirement to the geostatic stress level in surge-chamber region and country rock impermeability simultaneously, make that air cushion type pressure balance chamber is poor at geological conditions, geostatic stress level is lower, country rock impervious poor location application becomes possibility.Expand the range of application of air cushion type pressure balance chamber.
The technical scheme that the utility model adopts is: a kind of underground all steel bag air cushion type pressure balance chamber structure, the water under high pressure in air cushion type pressure balance chamber is enclosed in steel lining together with pressure-air, and directly do not contact with country rock.Comprise and be embedded in tunnel shape surge-chamber underground, that one end is connected with diversion tunnel, the other end is provided with steel bulkhead, it is characterized in that:
Described surge-chamber length range internal layer is provided with the steel lining of tubular, and steel lining the latter half is the tube connector that is full of water under high pressure, and steel lining the first half is the air chamber that is full of pressure-air; Backfill plain concrete between steel lining and country rock.
Described surge-chamber is arranged to oblique cavity form, and the longitudinal gradient of tube connector and air chamber is 10%.
The beneficial effects of the utility model are:
1) significantly reduced the strict demand of air cushion type pressure balance chamber to conditions such as buried depth, geostatic stress condition, country rock impermeabilities, expanded the range of application of air cushion type pressure balance chamber, increased the regioselective flexibility of surge-chamber, surge-chamber can be arranged by more close factory building, the better effects if of reflection surge wave, has improved the adjusting guaranteed performance in power station.
2) utilize the good barrier properties of steel lining, avoided the seepage of pressure-air and water under high pressure, reduced the risk that interior water exosmoses and brings, reduced the operating tonifying Qi frequency in power station, thereby reduced operation expense.
Comprehensive above consideration, the utility model is stronger to the compliance of landform geological conditions, has reduced the operation expense of air cushion type pressure balance chamber, has wide popularizing application prospect.
Accompanying drawing explanation
Fig. 1 is longitudinal plan of the present utility model.
Fig. 2 is the A-A sectional drawing of Fig. 1.
Fig. 3 is the B-B sectional drawing of Fig. 1.
The specific embodiment
As Figure 1-3, the present embodiment is a kind of underground all steel bag air cushion type pressure balance chamber structure, is an air cushion type pressure balance chamber that is embedded in underground tunnel form, and one end of surge-chamber is connected with diversion tunnel 1, steel bulkhead 2 shutoff for the other end, surge-chamber length range inwall is provided with the steel lining of tubular.
This routine feature is: described surge-chamber is arranged to oblique cavity form, and in length range, all to adopt cross section be that the steel lining 3 of tubular is as impervious barrier, the lower semisection of this steel lining 3 is to be full of the tube connector 3-1(of water under high pressure as Fig. 2), the upper semisection of this steel lining 3 is to be full of the air chamber 3-2(of pressure-air as Fig. 3), tube connector and air chamber adopt unified longitudinal gradient 10%.Backfill plain concrete 4 between steel lining 3 and country rock, passes to country rock 5 by steel lining 3 loads.Water under high pressure in tube connector starts normal power generation operation under initial water level; In unit load change procedure, water level can fluctuate, and the volume of air chamber changes thereupon, with this, controls water hammer and bore.
Claims (2)
1. a underground all steel bag air cushion type pressure balance chamber structure, comprise be embedded in underground, one end is connected with diversion tunnel (1), the stifled tunnel shape surge-chamber that has steel bulkhead (2) of the other end, it is characterized in that: described surge-chamber length range internal layer is provided with the steel lining (3) of tubular, steel lining the latter half is the tube connector (3-1) that is full of water under high pressure, and steel lining the first half is the air chamber (3-2) that is full of pressure-air; Backfill plain concrete (4) between steel lining and country rock.
2. underground all steel bag air cushion type pressure balance chamber structure according to claim 1, is characterized in that: described surge-chamber is arranged to oblique cavity form, and the longitudinal gradient of tube connector (3-1) and air chamber (3-2) is 10%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420174331.2U CN203866796U (en) | 2014-04-11 | 2014-04-11 | Underground full steel ladle air cushion type surge chamber structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420174331.2U CN203866796U (en) | 2014-04-11 | 2014-04-11 | Underground full steel ladle air cushion type surge chamber structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203866796U true CN203866796U (en) | 2014-10-08 |
Family
ID=51647766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420174331.2U Expired - Fee Related CN203866796U (en) | 2014-04-11 | 2014-04-11 | Underground full steel ladle air cushion type surge chamber structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203866796U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104452700A (en) * | 2014-11-04 | 2015-03-25 | 中国电建集团贵阳勘测设计研究院有限公司 | A formula bulkhead structure that turns on one's side for diversion tunnel manhole |
| CN110528476A (en) * | 2019-09-29 | 2019-12-03 | 长江勘测规划设计研究有限责任公司 | A kind of air cushion type pressure balance chamber and its application method with the double-deck obturator |
-
2014
- 2014-04-11 CN CN201420174331.2U patent/CN203866796U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104452700A (en) * | 2014-11-04 | 2015-03-25 | 中国电建集团贵阳勘测设计研究院有限公司 | A formula bulkhead structure that turns on one's side for diversion tunnel manhole |
| CN104452700B (en) * | 2014-11-04 | 2016-01-06 | 中国电建集团贵阳勘测设计研究院有限公司 | A formula bulkhead structure that turns on one's side for diversion tunnel manhole |
| CN110528476A (en) * | 2019-09-29 | 2019-12-03 | 长江勘测规划设计研究有限责任公司 | A kind of air cushion type pressure balance chamber and its application method with the double-deck obturator |
| CN110528476B (en) * | 2019-09-29 | 2023-10-13 | 长江勘测规划设计研究有限责任公司 | Air cushion type pressure regulating chamber with double-layer air-closing structure and use method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141008 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |