CN105040648B - More than 200 meters superelevation dam reservoir emptying tunnels and its method for arranging, purposes - Google Patents
More than 200 meters superelevation dam reservoir emptying tunnels and its method for arranging, purposes Download PDFInfo
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- CN105040648B CN105040648B CN201510478023.8A CN201510478023A CN105040648B CN 105040648 B CN105040648 B CN 105040648B CN 201510478023 A CN201510478023 A CN 201510478023A CN 105040648 B CN105040648 B CN 105040648B
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- emptying
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Abstract
The present invention relates to a kind of more than 200 meters superelevation dam reservoir emptying tunnels, including the emptying tunnel hole body being arranged in massif, emptying tunnel hole body has the water inlet positioned at reservoir bottom, and the delivery port being connected with positioned at the river course in downstream, and it is arranged on the emptying gate in the body of emptying tunnel hole, emptying tunnel hole body is in inverted " u "-shaped, and the elevation of the water inlet is higher than the elevation of the delivery port, and the emptying gate is located at the downstream at the top of the body of the emptying tunnel hole.Meanwhile, the invention further relates to the method for arranging of more than 200 meters superelevation dam reservoir emptying tunnels and purposes.More than the 200 meters superelevation dam reservoir emptying tunnels obtained effectively reduce the water pressure of emptying gate carrying, and the emptying of more than 200 meters superelevation dam reservoirs is solved the problems, such as under existing gate technical conditions.
Description
Technical field
The present invention relates to a kind of reservoir emptying tunnel, more particularly to a kind of more than 200 meters superelevation dam reservoir emptying tunnels, meanwhile,
The present invention relates to method for arranging of the emptying tunnel and application thereof.
Background technology
China is in the Rapid development stage of more than 200 meters super high dam constructions.Cut-off 2012, China is completed height of dam
7, superelevation dam more than 200 meters, such as 294.5 meters of voe dam height of dam, 233 meters of Shuibuya Dam height of dam, illumination dam height of dam
200.5 meters；In 7 built, such as 305 meters of Jinping I dam height of dam；Proposed 8, such as double 314 meters of Jiangkou dam heights of dam.This
It is a little it is built, build generated electricity with proposed engineering, the comprehensive benefit such as flood control it is huge, have especially great to Chinese national economy development
Influence.
Head that superelevation dam is born is high, water pressure is huge, and such as voe, Xi Luodu, La Xiwa, two beach Dam height are respectively
294.5 meters, 285.5 meters, 250 meters, 240 meters.High water head causes hydro-structure gate hole water pressure huge, opens and closes operation behaviour
Work, repair and maintenance and the difficulty renovated are significantly increased, and risk is big.According to the present art, main gate maximum work
160 meters are can only achieve as head, high dam engineering can not realize emptying, brought greatly to Dam Safety Control, emergency disposal etc.
Hidden danger, needs badly and seeks new emptying tunnel method to set up, solves superelevation dam emptying problem.
Chinese patent CN20440579U discloses a kind of flood discharge emptying structure, by pre-buried pipeline and immersible pump using electricity
Power is drawn water flood discharge emptying, but is not suitable for the emptying problem on more than 200 meters superelevation dams.Chinese patent CN10125829 discloses one
The controllable siphon discharging device and operating method of reservoir drainage or flood discharge are planted, by placing siphon pipe in dam crest come draining
Or flood discharge, power start is needed under primary condition, and siphon pipe caliber is smaller, and electric water-pumping is needed, cause flood discharge flow low, because
This is not suitable for the emptying problem of more than 200 meters superelevation dam super large storage capacity.
The content of the invention
To solve the deficiencies in the prior art, solve more than 200 meters superelevation dam reservoirs the invention provides one kind and put
The superelevation dam reservoir emptying tunnel of empty problem.
To achieve the above object, more than 200 meters superelevation dam reservoir emptying tunnels of the invention, including be arranged at putting in massif
Empty hole body, emptying tunnel hole body have with the water inlet positioned at reservoir bottom, and be connected with the river course positioned at downstream
Delivery port, and the emptying gate being arranged in the body of emptying tunnel hole, emptying tunnel hole body is in inverted " u "-shaped, it is described enter
The elevation at the mouth of a river is higher than the elevation of the delivery port, and the emptying gate is located at the downstream at the top of the body of the emptying tunnel hole.
As the restriction to aforesaid way, the hole footpath of emptying tunnel hole body section from emptying gate to delivery port is in gradually to receive
Miniature.
Emptying tunnel hole body is in inverted " u "-shaped and is arranged in massif, is easy to reservoir water being vented.On emptying tunnel hole body top
The downstream in portion sets emptying gate, reduces emptying gate apart from the difference in height of superelevation dam reservoir level, effectively reduces and put
The water pressure of empty gate carrying, emptying tunnel can not be set because being beyond the bearing capacity emptying gate artesian head by solving superelevation dam
The problem of, and reduce emptying gate and opening and closing the operation difficulty of operation, repair and maintenance and the process such as renovate, it is ensured that dam
The safety of body.Because water inlet elevation is higher than delivery port elevation, it is higher than emptying tunnel cope level in reservoir level and storehouse need to be vented
During water, lifting emptying gate, reservoir water just can under Gravitative Loads voluntarily from delivery port outflow, emptying, be not required to applying power and
Miscellaneous equipment, not only saves resource, and ensured safety management and the emergency disposal of dam.Emptying tunnel gate is placed in downstream
Side is that have sufficient space to install gate opening/closing equipment to meet above gate, and is conducive to gate to manipulate.Emptying tunnel hole body is from putting
Empty gate, in the shrinkage type hole footpath being gradually reduced, is for during guarantee emptying, emptying tunnel is in all the time pressure to delivery port section
Stream mode, it is to avoid occur the alternate fluidised form of free pressure flow in hole, it is ensured that emptying tunnel operation safety.
Meanwhile, the method for arranging of more than 200 meters superelevation dam reservoir emptying tunnels of the invention comprises the following steps：
Step 1: setting water inlet with the reservoir bottom junctions positioned at upstream in massif；
Step 2: in massif with setting delivery port positioned at the river course junction in downstream, the elevation of the water inlet is higher than institute
State the elevation of delivery port；
Step 3: arrangement is connected to the emptying tunnel hole body in inverted " u "-shaped of water inlet and delivery port in massif；
Step 4: the downstream at the top of the body of emptying tunnel hole sets emptying gate.
By controlling emptying gate elevation, produce the check flood level depth displacement of emptying gate elevation and superelevation dam reservoir
Water pressure emptying gate allow carrying pressure limit in, solve current superelevation dam because emptying gate artesian head exceed hold
Loading capability and the problem of can not emptying tunnel be set.
As the restriction to aforesaid way, emptying tunnel hole body from emptying gate to delivery port section hole footpath be arranged to by
Taper miniature.
Meanwhile, the purposes of more than 200 meters superelevation dam reservoir emptying tunnels of the invention is that the emptying tunnel is used for height of dam 200
The emptying of superelevation dam reservoir more than rice.
Using the superelevation dam reservoir emptying tunnel of the present invention, the main gate that existing maximum can be carried to 160 meters of pressure is used
The emptying gate of more than 200 meters superelevation dam reservoir emptying tunnels is done, more than 200 meters superelevation dams are solved because of emptying gate artesian head
The problem of being beyond the bearing capacity and can not emptying tunnel be set.
In summary, using technical scheme, the superelevation dam reservoir emptying tunnel of acquisition effectively reduces emptying lock
The water pressure of door carrying, solves the problems, such as the emptying of more than 200 meters superelevation dam reservoirs, in reservoir under existing gate technical conditions
When water level is higher than emptying tunnel cope level and need to be vented reservoir water, lifting emptying gate, storehouse water just can be under Gravitative Loads voluntarily
From delivery port outflow, emptying, applying power and miscellaneous equipment are not required to, resource is not only saved, and ensured the safety of dam
Management and emergency disposal.
Brief description of the drawings
Below in conjunction with the accompanying drawings and embodiment to the present invention further describe in detail：
Fig. 1 is more than 200 meters superelevation dam reservoir emptying tunnel arrangement schematic diagrames of the embodiment of the present invention；
In figure：11st, upper pond bottom；12nd, upper pond check flood level；13rd, upper pond；14th, downstream river course；
21st, water inlet；22nd, delivery port；31st, emptying tunnel hole body；32nd, it is vented gate；41st, massif.
Embodiment
Embodiment one
The present embodiment is related to a kind of more than 200 meters superelevation dam reservoir emptying tunnels.
Emptying tunnel as shown in Figure 1 is provided with the massif of superelevation dam reservoir more than 200 meters, emptying tunnel hole body 31 is in
Inverted " u "-shaped is arranged in massif 41, for connecting upper pond and downstream river course；Emptying tunnel hole body 31 and upper pond 13
Connectivity part be provided with water inlet 21, water inlet 21 is located at upper pond bottom 11, the company of emptying tunnel hole body 31 and downstream river course 14
Logical place is provided with delivery port 22, and elevation of the elevation higher than delivery port 22 of water inlet 21, i.e. height of the water inlet 21 apart from sea level
Degree is higher than height of the delivery port 22 apart from sea level；In emptying tunnel hole, the downstream at the top of body 31 is provided with emptying gate 32, emptying
The elevation of gate 32 regards the hydraulic pressure bearing capacity for using emptying gate 32 apart from the depth displacement of upper pond check flood level 12
Depending on；The side wall good seal of emptying tunnel hole body 31, is in the receipts being gradually reduced from emptying gate 32 to the hole footpath of 22 sections of delivery port
Miniature.
Embodiment two
The present embodiment is related to a kind of method for arranging of more than 200 meters superelevation dams reservoir emptying tunnel, comprises the following steps：
Step one：Water inlet is set with the reservoir bottom junctions positioned at upstream in massif；
Step 2：In massif with setting delivery port positioned at the river course junction in downstream, the elevation of the water inlet is higher than institute
State the elevation of delivery port；
Step 3: the emptying tunnel hole body in inverted " u "-shaped is arranged in massif, and hole body sidewall good seal；
Step 4: the downstream at the top of the body of emptying tunnel hole sets emptying gate, it is desirable to be vented gate elevation and upper water
The water pressure that storehouse check flood level depth displacement is produced can not carry hydraulic pressure more than emptying gate；
Step 5：From emptying gate to delivery port, the hole footpath of section is arranged to the shrinkage type being gradually reduced to emptying tunnel hole body.
The superelevation dam reservoir emptying tunnel obtained from above effectively reduces the water pressure of emptying gate carrying, can be by existing maximum
The main gate that 160 meters of pressure can be carried is used as the emptying gate of more than 200 meters superelevation dam reservoir emptying tunnels, solves 200 meters
The problem of above superelevation dam can not set emptying tunnel because being vented gate artesian head and being beyond the bearing capacity.In upper pond water level
Higher than emptying tunnel hole body cope level and when need to be vented reservoir water, lifting emptying gate, reservoir water under Gravitative Loads voluntarily from
Delivery port outflow, emptying, are not required to applying power and miscellaneous equipment, not only save resource, and ensured the bursting tube of dam
Reason and emergency disposal.
Claims (3)
1. a kind of more than 200 meters superelevation dam reservoir emptying tunnels, including the emptying tunnel hole body being arranged in massif, the emptying tunnel hole
Body has the water inlet positioned at reservoir bottom, and the delivery port being connected with positioned at the river course in downstream, and is arranged on emptying
Emptying gate in the body of hole hole, it is characterised in that：Emptying tunnel hole body is in inverted " u "-shaped, and the elevation of the water inlet is high
In the elevation of the delivery port, the emptying gate is located at the downstream at the top of the body of the emptying tunnel hole；Emptying tunnel hole body
From emptying gate to delivery port, the hole footpath of section is in gradually taper up type.
2. the method for arranging of a kind of more than 200 meters superelevation dams reservoir emptying tunnel, it is characterised in that this method comprises the following steps：
Step 1: setting water inlet with the reservoir bottom junctions positioned at upstream in massif；
Step 2: in massif with setting delivery port positioned at the river course junction in downstream, the elevation of the water inlet goes out higher than described in
The elevation at the mouth of a river；
Step 3: arrangement is connected to the emptying tunnel hole body in inverted " u "-shaped of water inlet and delivery port in massif；
Step 4: downstream at the top of the body of emptying tunnel hole sets emptying gate, emptying tunnel hole body is from emptying gate to going out
The hole footpath of mouth of a river section is arranged to gradually taper up type.
3. a kind of purposes of more than 200 meters superelevation dams as claimed in claim 1 reservoir emptying tunnel, it is characterised in that：It is described to put
Cavity is vented for the superelevation dam reservoir of more than 200 meters of height of dam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510478023.8A CN105040648B (en) | 2015-08-07 | 2015-08-07 | More than 200 meters superelevation dam reservoir emptying tunnels and its method for arranging, purposes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510478023.8A CN105040648B (en) | 2015-08-07 | 2015-08-07 | More than 200 meters superelevation dam reservoir emptying tunnels and its method for arranging, purposes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105040648A CN105040648A (en) | 2015-11-11 |
| CN105040648B true CN105040648B (en) | 2017-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510478023.8A Expired - Fee Related CN105040648B (en) | 2015-08-07 | 2015-08-07 | More than 200 meters superelevation dam reservoir emptying tunnels and its method for arranging, purposes |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106087903B (en) * | 2016-08-05 | 2018-01-12 | 浙江水利水电学院 | Suction Type Shaft spillway |
| CN107130568B (en) * | 2017-07-06 | 2023-02-28 | 中国水利水电科学研究院 | Reservoir emptying tunnel structure of super-high dam more than 200 meters and arrangement and use method thereof |
| CN108560511B (en) * | 2018-06-15 | 2023-09-08 | 中国电建集团成都勘测设计研究院有限公司 | Combined arrangement structure of cavity and water conduit |
| CN109667248A (en) * | 2018-12-21 | 2019-04-23 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of multistage water blocking blowdown system for high dam engineering |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5852047B2 (en) * | 1979-12-10 | 1983-11-19 | 日立造船株式会社 | Conduit mouth closure device |
| CN102162230B (en) * | 2011-03-02 | 2012-11-21 | 中国水电顾问集团西北勘测设计研究院 | Design method for reconstructing diversion tunnel into flood discharge tunnel in 'tail-raising' mode |
| CN203846465U (en) * | 2014-05-26 | 2014-09-24 | 中国电建集团成都勘测设计研究院有限公司 | Emptying tunnel or non-normal spillway tunnel arrangement system |
| CN204849708U (en) * | 2015-08-07 | 2015-12-09 | 中国水利水电科学研究院 | 200 superelevation dam reservoir unloading hole more than rice |
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Granted publication date: 20170714 Termination date: 20190807 |