CN204849708U - 200 superelevation dam reservoir unloading hole more than rice - Google Patents
200 superelevation dam reservoir unloading hole more than rice Download PDFInfo
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- CN204849708U CN204849708U CN201520587767.9U CN201520587767U CN204849708U CN 204849708 U CN204849708 U CN 204849708U CN 201520587767 U CN201520587767 U CN 201520587767U CN 204849708 U CN204849708 U CN 204849708U
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- emptying
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- unloading
- reservoir
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Abstract
The utility model relates to a 200 superelevation dam reservoir unloading hole more than rice, including setting up the unloading hole body in the massif, the unloading hole body has the water inlet that is located the reservoir bottom of the reservior to and the delivery port that is linked together with the river course that is located low reaches, and set up at the internal unloading gate in unloading hole, the unloading hole body is " U " shape of inversion, the elevation of water inlet is higher than the elevation of delivery port, the unloading gate is located the downstream side at unloading hole body top. The 200 superelevation dam reservoir unloading hole more than rice who obtains has effectively reduced the water pressure that the unloading gate bore, has solved the unloading problem of superelevation dam reservoir more than 200 meters under current gate technical conditions.
Description
Technical field
The utility model relates to a kind of emptying tunnel, particularly relates to a kind of more than 200 meters superelevation dam reservoir emptying tunnels.
Background technology
China is in the Rapid development stage of more than 200 meters super high dam constructions, and the head that superelevation dam bears is high, water pressure is huge, and as voe, Xi Luodu, La Xiwa, two beach Dams are high is respectively 294.5 meters, 285.5 meters, 250 meters, 240 meters.High water head causes hydro-structure gate aperture water pressure huge, and keying operation, repair and maintenance and the difficulty renovated significantly increase, and safety wind is greatly dangerous.According to the present art, Service gate maximum functional head can only reach 160 meters, and high dam engineering all cannot realize emptying, brings very big hidden danger to Dam Safety Control, emergency disposal etc., need badly and seek novel emptying tunnel system is set, solve the emptying problem on superelevation dam.
Summary of the invention
For solving the deficiencies in the prior art, the utility model provides the superelevation dam reservoir emptying tunnel of a kind of solution more than 200 meters superelevation dam reservoir emptying problems.
For achieving the above object, more than 200 meters superelevation dam reservoir emptying tunnels of the present utility model, comprise the emptying tunnel hole body be arranged in superelevation dam massif, described emptying tunnel hole body has the water inlet being positioned at reservoir bottom, and the delivery port to be connected with the river course being positioned at downstream, and the emptying gate be arranged in the body of emptying tunnel hole, described emptying tunnel hole body is inverted " U " shape, the elevation of described water inlet is higher than the elevation of described delivery port, and described emptying gate is positioned at the downstream at body top, described emptying tunnel hole.
Emptying tunnel hole body is inverted " U " shape and is arranged in massif, is convenient to reservoir water emptying.In the downstream at body top, emptying tunnel hole, emptying gate is set, reduce the difference in height of emptying gate distance superelevation dam reservoir level, effectively reduce the water pressure of emptying gate carrying, solve superelevation dam and the problem of emptying tunnel can not be set because emptying gate artesian head is beyond the bearing capacity, and reduce the operation easier of emptying gate in processes such as opening and closing operation, repair and maintenance and renovate, ensure the safety of dam body.Because water inlet elevation is higher than delivery port elevation, at reservoir level higher than emptying tunnel crest level and when needing emptying storehouse water, promote emptying gate, reservoir water just can flow out from delivery port voluntarily under Gravitative Loads, emptying, do not need applying power and miscellaneous equipment, not only save resource, and ensure safety management and the emergency disposal of dam.It is have sufficient space to install gate opening/closing equipment for meeting above gate that emptying tunnel gate is placed in downstream, and is conducive to gate manipulation.
As the restriction to aforesaid way, described emptying tunnel hole body from emptying gate to the footpath, hole of delivery port section in shrinkage type gradually.
Emptying tunnel hole body in the footpath, shrinkage type hole reduced gradually, is for ensureing that in emptying process, emptying tunnel is in pressure flow state all the time, avoids the fluidised form occurring in hole that free pressure flow replaces, ensureing emptying tunnel security of operation from emptying gate to delivery port section.
In sum, adopt the technical solution of the utility model, the superelevation dam reservoir emptying tunnel obtained effectively reduces the water pressure of emptying gate carrying, the existing maximum Service gate carrying 160 meters of pressure can be used as the emptying gate of more than 200 meters superelevation dam reservoir emptying tunnels, solve more than 200 meters superelevation dams and the problem of emptying tunnel can not be set because emptying gate artesian head is beyond the bearing capacity.At reservoir level higher than emptying tunnel crest level and when needing emptying reservoir water, promote emptying gate, storehouse water just voluntarily from delivery port outflow, emptying under Gravitative Loads, can not need applying power and miscellaneous equipment, not only save resource, and ensure safety management and the emergency disposal of dam.
Accompanying drawing explanation
Do further to describe in detail to the utility model below in conjunction with the drawings and the specific embodiments:
Fig. 1 is the superelevation dam reservoir emptying tunnel facade arrangement schematic diagram of the utility model embodiment one;
In figure: 11, bottom upper pond; 12, upper pond check flood level; 13, upper pond; 14, downstream river course; 21, water inlet; 22, delivery port; 31, emptying tunnel hole body; 32, emptying gate; 41, massif.
Detailed description of the invention
Embodiment
The present embodiment relates to a kind of more than 200 meters superelevation dam reservoir emptying tunnels, and as shown in Figure 1, emptying tunnel hole body 31 is arranged in massif 41, for connecting upper pond and downstream river course in inverted " U " shape; Emptying tunnel hole body 31 is provided with water inlet 21 with the connectivity part of upper pond 13, water inlet 21 to be positioned at bottom upper pond 11, emptying tunnel hole body 31 is provided with delivery port 22 with the connectivity part of downstream river course 14, and the elevation of water inlet 21 is higher than the elevation of delivery port 22, namely water inlet 21 apart from the height on sea level higher than the height of delivery port 22 apart from sea level; Be provided with emptying gate 32 in the downstream at body 31 top, emptying tunnel hole, the depth displacement of the elevation of emptying gate 32 distance upper pond check flood level 12 is depending on the hydraulic pressure supporting capacity of adopted antiaircraft gate 32; The sidewall good seal of emptying tunnel hole body 31 is the shrinkage type reduced gradually from the footpath, hole of emptying gate 32 to delivery port 22 sections.
Superelevation dam reservoir more than 200 meters arranges emptying tunnel as above, emptying tunnel hole body is that inverted " U " shape is arranged in superelevation dam massif, be convenient to the emptying of upper pond water, in the downstream at emptying tunnel top, emptying gate is set, reduce the difference in height of emptying gate distance superelevation dam reservoir level, effectively reduce the water pressure of emptying gate carrying, make the hydraulic pressure of emptying gate present position, the i.e. pressure of the depth displacement generation of the elevation distance upper pond check flood level 12 of emptying gate present position, gate is maximum can within the scope of bearing pressure, the existing maximum Service gate carrying 160 meters of pressure can be used as the emptying gate of more than 200 meters superelevation dam reservoir emptying tunnels, solve more than 200 meters superelevation dams and the problem of emptying tunnel can not be set because emptying gate artesian head is beyond the bearing capacity.Because water inlet elevation is higher than delivery port elevation, at reservoir level higher than emptying tunnel crest level and when needing emptying storehouse water, promote emptying gate, reservoir water just can flow out from delivery port voluntarily under Gravitative Loads, emptying, do not need applying power and miscellaneous equipment, not only save resource, and ensure safety management and the emergency disposal of dam.It is have sufficient space to install gate opening/closing equipment for meeting above gate that emptying tunnel gate is placed in downstream, and is conducive to gate manipulation.Emptying tunnel hole body in the footpath, shrinkage type hole reduced gradually, is for ensureing that in emptying process, emptying tunnel is in pressure flow state all the time, avoids the fluidised form occurring in hole that free pressure flow replaces, ensureing emptying tunnel security of operation from emptying gate to delivery port section.
Superelevation dam of the present utility model reservoir emptying tunnel effectively reduces the water pressure of emptying gate carrying, solves the emptying problem of more than 200 meters superelevation dam reservoirs under existing gate technical condition.
Claims (2)
1. one kind more than 200 meters superelevation dam reservoir emptying tunnels, comprise the emptying tunnel hole body be arranged in massif, described emptying tunnel hole body has the water inlet being positioned at reservoir bottom, and the delivery port to be connected with the river course being positioned at downstream, and the emptying gate be arranged in the body of emptying tunnel hole, it is characterized in that: described emptying tunnel hole body is inverted " U " shape, the elevation of described water inlet is higher than the elevation of described delivery port, and described emptying gate is positioned at the downstream at body top, described emptying tunnel hole.
2. more than 200 meters superelevation dam reservoir emptying tunnels according to claim 1, is characterized in that: described emptying tunnel hole body from emptying gate to the footpath, hole of delivery port section in shrinkage type gradually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520587767.9U CN204849708U (en) | 2015-08-07 | 2015-08-07 | 200 superelevation dam reservoir unloading hole more than rice |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520587767.9U CN204849708U (en) | 2015-08-07 | 2015-08-07 | 200 superelevation dam reservoir unloading hole more than rice |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204849708U true CN204849708U (en) | 2015-12-09 |
Family
ID=54740276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520587767.9U Withdrawn - After Issue CN204849708U (en) | 2015-08-07 | 2015-08-07 | 200 superelevation dam reservoir unloading hole more than rice |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204849708U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105040648A (en) * | 2015-08-07 | 2015-11-11 | 中国水利水电科学研究院 | Reservoir emptying tunnel for over 200-meter ultrahigh dam and arrangement method and application thereof |
| CN107893402A (en) * | 2017-11-15 | 2018-04-10 | 黄河勘测规划设计有限公司 | The method of reservoir reconstruction of diversion tunnel emptying tunnel |
| CN109469025A (en) * | 2018-12-21 | 2019-03-15 | 中国电建集团贵阳勘测设计研究院有限公司 | Overflow gallery system for step-by-step water retaining and emptying system of high dam |
-
2015
- 2015-08-07 CN CN201520587767.9U patent/CN204849708U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105040648A (en) * | 2015-08-07 | 2015-11-11 | 中国水利水电科学研究院 | Reservoir emptying tunnel for over 200-meter ultrahigh dam and arrangement method and application thereof |
| CN107893402A (en) * | 2017-11-15 | 2018-04-10 | 黄河勘测规划设计有限公司 | The method of reservoir reconstruction of diversion tunnel emptying tunnel |
| CN109469025A (en) * | 2018-12-21 | 2019-03-15 | 中国电建集团贵阳勘测设计研究院有限公司 | Overflow gallery system for step-by-step water retaining and emptying system of high dam |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151209 Effective date of abandoning: 20170714 |
|
| AV01 | Patent right actively abandoned |