CN106149647B - It is a kind of artificially not controlled down the method and structure for letting out ecological flow - Google Patents
It is a kind of artificially not controlled down the method and structure for letting out ecological flow Download PDFInfo
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- CN106149647B CN106149647B CN201510156694.2A CN201510156694A CN106149647B CN 106149647 B CN106149647 B CN 106149647B CN 201510156694 A CN201510156694 A CN 201510156694A CN 106149647 B CN106149647 B CN 106149647B
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- ecological flow
- drain tank
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- dam
- ecological
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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
Abstract
The method and structure of ecological flow of letting out artificially are not controlled down the invention discloses a kind of, the present invention is set there are one ecological flow drain tank in hydraulic and hydroelectric engineering non-overflow section of dam, the ecological flow drain tank import floor elevation is less than dead water level, sluicing groove bottom has downwards certain gradient, the top of ecological flow sluicing channel section to be connected with non-overflow dam crest.Its structure includes existing discharge structure；Non-overflow section of dam in existing discharge structure side is equipped with ecological flow drain tank.The configuration of the present invention is simple is easy, will not deposit, and does not set gate, and management is convenient, can in the smaller multi-purpose project of low water head, reservoir water level luffing wide popularization and application.
Description
Technical field
The method and structure of ecological flow of letting out artificially are not controlled down the present invention relates to a kind of, belong to hydraulic engineering ecology
Safeguards technique field.
Background technology
The construction of hydraulic and hydroelectric engineering dam changes the process of river natural runoff, and under normal circumstances, ecological flow is
Ensure downstream ecology water-use for environment minimum requirements, under let out ecological flow be ensure downstream ecology environment important measures.It is transporting
The departure date, according to different hydraulic and hydroelectric engineering characteristics, under let out ecological flow mode usually have let out under gate aerial drainage, ecological unit and
The modes such as traffic control.
Gate aerial drainage mainly utilizes existing low lock gate, such as sluice, scouring sluice aerial drainage.But long-term part starting gate
Aerial drainage has an impact engineering safety.It lets out under ecological unit and is affected to power benefit with being let out under traffic control.In addition, also having
The scheme of drain tank is disposed under gate, but such scheme, in the case where discharge structure is closed, drain tank is easy siltation.By
It is let out under ecological flow, the benefit of engineering can be made to incur loss to a certain extent, embodiment party's enthusiasm is not high, and said program
It is artificially controlled, is not easy to the supervision of Environmental protection management department.
Invention content
The method and structure of ecological flow of letting out artificially are not controlled down the object of the present invention is to provide a kind of, so as to
In the supervision of Environmental protection management department, to overcome the deficiencies in the prior art.
The technical proposal of the invention is realized in this way：
A kind of method for letting out ecological flow that artificially do not controlled down of the present invention is that this method is the water conservancy water in reservoir
Electrical engineering non-overflow section of dam is set there are one ecological flow drain tank, and the ecological flow drain tank import floor elevation is dead less than reservoir
Water level, sluicing groove bottom have downwards certain gradient, the top of ecological flow sluicing channel section to be connected with non-overflow dam crest.
In preceding method, the following cross-sectional area of ecological flow drain tank level of dead water is ecological according to meeting when level of dead water
Flow conveyance capacity, which calculates, to be determined.
In preceding method, the downward gradient of the ecological flow sluicing groove bottom is 1/20 or so；If the gradient is larger, need
In outlet port, stilling pond is set.
The a kind of of the present invention constituted according to the above method is not artificially controlled down that let out the structure of ecological flow be the knot
Structure is that the non-overflow section of dam in existing discharge structure side is equipped with ecological flow drain tank.
In aforementioned structure, the ecological flow sluicing groove bottom is the low inclined surface in the high downstream in upstream, and gradient is about
1/20。
In aforementioned structure, the upstream edge of the ecological flow sluicing groove bottom is less than hydraulic and hydroelectric engineering level of dead water.
By adopting the above-described technical solution, compared with prior art, the present invention the present invention it is simple for structure, will not
Siltation does not set gate, and management is convenient, and the present invention can be widely popularized in the smaller multi-purpose project of low water head, reservoir water level luffing
Using.
Description of the drawings
Fig. 1 is the structural schematic diagram of the present invention.
Label in attached drawing be：1- ecological flow drain tanks, 2- non-overflow section of dam, the existing discharge structures of 3-.
Specific implementation mode
The present invention is described in further detail with reference to the accompanying drawings and examples, but not as to any of the present invention
Limitation.
A kind of method for letting out ecological flow that artificially do not controlled down of the present invention is that this method is in hydraulic and hydroelectric engineering
Non-overflow section of dam is set there are one ecological flow drain tank 1, which is less than reservoir stagnant water
Position, sluicing groove bottom have downwards certain gradient, the top of ecological flow sluicing channel section to be connected with non-overflow dam crest.Ecological flow
The following cross-sectional area of drain tank level of dead water is measured, ecological flow conveyance capacity is met when according to level of dead water and calculates determination.Ecological flow
The downward gradient of drain tank is 1/20 or so；If the gradient is larger, need to stilling pond be set in outlet port.
The a kind of of the present invention formed according to the above method is not artificially controlled down that let out the structure of ecological flow be the knot
Structure includes existing discharge structure 3；Ecological flow is equipped on the non-overflow section of dam 2 of 3 side of existing discharge structure to sluice
Slot 1；1 bottom surface of ecological flow drain tank is the low inclined surface in the high downstream in upstream, and gradient is about 1/20.1 ecological flow sluices
The upstream edge of 1 bottom surface of slot is less than dead water level.
Embodiment
The structure of the present embodiment is suitable for the smaller hydraulic and hydroelectric engineering of low water head, reservoir water level luffing.It is such as Fig. 1 institutes
It shows, is set there are one ecological flow drain tank in hydraulic and hydroelectric engineering non-overflow section of dam, the ecological flow drain tank import bottom plate
Elevation is less than dead water level, and sluicing groove bottom has downwards certain gradient, the top of ecological flow sluicing channel section to overflow with non-
Flow dam crest linking.The following cross-sectional area of ecological flow drain tank level of dead water, meets ecological flow conveyance capacity when according to level of dead water
Gained is calculated, ecological flow drain tank section configuration is unlimited.The downward gradient of sluicing groove bottom use 1/20 or so, as the gradient compared with
Greatly, can stilling pond be set in outlet port.There are one ecological flows by being set in hydraulic and hydroelectric engineering non-overflow section of dam 2 by the present invention
Drain tank 1, after 3 times locks of discharge structure and engineering operation, flow from reservoir area along ecological flow drain tank bleed downstream, with
Meet the ecological flow demand in downstream, method of the invention and structure can not be controlled artificially, and Environmental protection management department is convenient for
Supervision.
Claims (4)
1. a kind of artificially not controlled down the method for letting out ecological flow, it is characterised in that：This method is the water conservancy water in reservoir
Electrical engineering non-overflow section of dam is set there are one ecological flow drain tank, and the ecological flow drain tank import floor elevation is dead less than reservoir
Water level, sluicing groove bottom have downwards certain gradient, the top of ecological flow sluicing channel section to be connected with non-overflow dam crest；Ecology
Flow drain tank level of dead water following cross-sectional area meets ecological flow conveyance capacity and calculates determination when according to level of dead water.
2. artificially not controlled down the method for letting out ecological flow according to claim 1, it is characterised in that：The ecological flow
It is 1/20 or so to measure the downward gradient of drain tank；If the gradient is larger, need to stilling pond be set in outlet port.
3. a kind of letting out ecological flow according to artificially not controlled down for claim 1~2 any claim the method formation
The structure of amount, including existing discharge structure（3）；It is characterized in that：In existing discharge structure（3）The non-overflow section of dam of side
（2）Equipped with ecological flow drain tank（1）；Ecological flow drain tank（1）Bottom surface is the low inclined surface in the high downstream in upstream, gradient
About 1/20.
4. artificially not controlled down the structure for letting out ecological flow according to claim 3, it is characterised in that：The ecological flow
Measure drain tank（1）The upstream edge of bottom surface is less than dead water level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510156694.2A CN106149647B (en) | 2015-04-03 | 2015-04-03 | It is a kind of artificially not controlled down the method and structure for letting out ecological flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510156694.2A CN106149647B (en) | 2015-04-03 | 2015-04-03 | It is a kind of artificially not controlled down the method and structure for letting out ecological flow |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106149647A CN106149647A (en) | 2016-11-23 |
| CN106149647B true CN106149647B (en) | 2018-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510156694.2A Active CN106149647B (en) | 2015-04-03 | 2015-04-03 | It is a kind of artificially not controlled down the method and structure for letting out ecological flow |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107740379A (en) * | 2017-09-12 | 2018-02-27 | 南昌大学 | A kind of ecological hydro-junction facility for adapting to rivers and lakes connection |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1062942A (en) * | 1990-12-28 | 1992-07-22 | Gtm仓储有限公司 | On the dam that has two flood discharge structures at least, the release flood spillway of superflood |
| JP2005325564A (en) * | 2004-05-13 | 2005-11-24 | Nippon Steel Metal Prod Co Ltd | Buffer structure of concrete dam and its construction method |
| CN102286961A (en) * | 2011-07-11 | 2011-12-21 | 合肥工业大学 | Overflow dam for waste tires |
| CN202369969U (en) * | 2011-11-16 | 2012-08-08 | 中南大学 | Variable cross-section gravity type debris flow debris dam |
| CN103195024A (en) * | 2013-04-10 | 2013-07-10 | 中国科学院、水利部成都山地灾害与环境研究所 | Debris flow diversion dam capable of automatically distributing drainage quantity and silt stopping quantity and design method of debris flow diversion dam |
| CN204000789U (en) * | 2014-08-08 | 2014-12-10 | 中国电建集团贵阳勘测设计研究院有限公司 | The structure of downstream ecology flow is provided after lock under a kind of water conservancy diversion outlet structure escape works |
-
2015
- 2015-04-03 CN CN201510156694.2A patent/CN106149647B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1062942A (en) * | 1990-12-28 | 1992-07-22 | Gtm仓储有限公司 | On the dam that has two flood discharge structures at least, the release flood spillway of superflood |
| JP2005325564A (en) * | 2004-05-13 | 2005-11-24 | Nippon Steel Metal Prod Co Ltd | Buffer structure of concrete dam and its construction method |
| CN102286961A (en) * | 2011-07-11 | 2011-12-21 | 合肥工业大学 | Overflow dam for waste tires |
| CN202369969U (en) * | 2011-11-16 | 2012-08-08 | 中南大学 | Variable cross-section gravity type debris flow debris dam |
| CN103195024A (en) * | 2013-04-10 | 2013-07-10 | 中国科学院、水利部成都山地灾害与环境研究所 | Debris flow diversion dam capable of automatically distributing drainage quantity and silt stopping quantity and design method of debris flow diversion dam |
| CN204000789U (en) * | 2014-08-08 | 2014-12-10 | 中国电建集团贵阳勘测设计研究院有限公司 | The structure of downstream ecology flow is provided after lock under a kind of water conservancy diversion outlet structure escape works |
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| Publication number | Publication date |
|---|---|
| CN106149647A (en) | 2016-11-23 |
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