CN110029636A - A kind of discharge structure energy dissipator and its energy dissipating method - Google Patents
A kind of discharge structure energy dissipator and its energy dissipating method Download PDFInfo
- Publication number
- CN110029636A CN110029636A CN201910297380.2A CN201910297380A CN110029636A CN 110029636 A CN110029636 A CN 110029636A CN 201910297380 A CN201910297380 A CN 201910297380A CN 110029636 A CN110029636 A CN 110029636A
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- Prior art keywords
- reinforcing bar
- rope
- band reinforcing
- stilling pond
- layer
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- 238000000034 method Methods 0.000 title claims abstract description 9
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 60
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 24
- 239000010959 steel Substances 0.000 claims abstract description 24
- 238000003780 insertion Methods 0.000 claims description 13
- 230000037431 insertion Effects 0.000 claims description 13
- 230000001154 acute effect Effects 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 238000010422 painting Methods 0.000 claims description 4
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 210000003205 muscle Anatomy 0.000 claims description 3
- 244000025254 Cannabis sativa Species 0.000 claims description 2
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 claims description 2
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 claims description 2
- 235000009120 camo Nutrition 0.000 claims description 2
- 235000005607 chanvre indien Nutrition 0.000 claims description 2
- 239000011487 hemp Substances 0.000 claims description 2
- 239000000872 buffer Substances 0.000 abstract description 4
- 230000000116 mitigating effect Effects 0.000 abstract 1
- 239000004744 fabric Substances 0.000 description 2
- 206010057071 Rectal tenesmus Diseases 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 208000012271 tenesmus Diseases 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B8/00—Details of barrages or weirs ; Energy dissipating devices carried by lock or dry-dock gates
- E02B8/06—Spillways; Devices for dissipation of energy, e.g. for reducing eddies also for lock or dry-dock gates
Abstract
The invention discloses a kind of discharge structure energy dissipator and its energy dissipating methods, are related to hydraulic engineering neighborhood.The structure of its energy dissipating part includes band reinforcing bar, rope, stilling pond.Band reinforcing bar is inserted into the concrete of dam site and stilling pond rear end part respectively according to the specific arrangement position of rope and quantity, and expose reinforced steel bar ring, rope makes to be placed with rope layer by layer above entire stilling pond by the reinforced steel bar ring binding connection dam site at both ends and stilling pond rear end.When the lower stream that sluices of high speed is by when choosing bank, the rope for being arranged in dam downstream accepts water flow, the water flow impacted in rope surface all reduces kinetic energy by each layer of rope, there is a buffer function to water flow impact pressure, mitigating discharge structure sluicing, sluicing stream washes away underwater bed, bank slope, building at present, improve water project situation, guarantee energy dissipating efficiency and downstream building safety and reduce the project amount for building energy dissipater, reduces project cost.
Description
Technical field
The present invention relates to a kind of discharge structure energy dissipator and its energy dissipating methods, belong to hydraulic engineering technology neighborhood.
Background technique
In recent decades, domestic water resources and hydropower construction rapidly develops, and the dissipation and scouring building in downstream is to influence water power pivot
One of the significant points of knob engineering safety operation.Flip trajectory bucket, energy dissipation by hydraulic jump, the submerged bucket dissipator mainly used at present, is sluicing
The flow rate of water flow of building exit part is high, and kinetic energy is big, and more serious deformation of washing away can be caused to underwater bed, bank slope, endangers
And downstream building safety.At a high speed, strong turbulence flow easily generates serious wash away brokenly to force reduction pool bottom when flowing through stilling pond
It is bad.
Summary of the invention
To mitigate discharge structure sluicing, sluicing stream washes away underwater bed, bank slope, building at present, improves water conservancy item
Part guarantees energy dissipating efficiency and downstream building safety and reduces the project amount for building energy dissipater, reduces project cost, the present invention
A kind of energy dissipating method that discharge structure buffers the lower stream that sluices of high speed by stacking rope layer by layer is provided.
The technical solution adopted by the present invention is that: a kind of discharge structure energy dissipator, including gate 1, dam crest 2, overfall dam
Face 3, defrlector bucket 4, toe 5, stilling pond 6, baffle wall style front end 7, reinforcing bar 8, reinforced steel bar ring 9, rope 10；
The setting of gate 1 is in 2 upper end of dam crest, and gate 1 is connected when closing with dam crest 2, and overfull dam surface 3 is connected under dam crest 2
Trip, the lower end of overfull dam surface 3 are connected with defrlector bucket 4, are toe 5 between overfull dam surface 3, defrlector bucket 4 and ground, choose stream nose
The downstream connection stilling pond 6 of bank 4,6 downstream of stilling pond are connected with baffle wall style front end 7, the Chi Kanxiang of toe 5 and 6 upstream of stilling pond
Even, the several layers band reinforcing bar 8 of interval insertion from top to bottom in toe 5, the quantity of every layer of band reinforcing bar 8 are several and interval point
Cloth, the end of every band reinforcing bar 8 are equipped with the reinforced steel bar ring 9 for exposing 6 head bay bank of stilling pond, in baffle wall style front end 7 from top to bottom
Interval insertion several layers band reinforcing bar 8, the quantity of every layer of band reinforcing bar 8 is several and is spaced apart, every band reinforcing bar 8
End be equipped with expose 6 downstream bath bank of stilling pond reinforced steel bar ring 9, toe 5 be inserted into band reinforcing bar 8 the number of plies and every layer in band steel
The quantity of band reinforcing bar 8, interval in the quantity of muscle 8, the number of plies at interval and the band reinforcing bar 8 of the insertion of baffle wall style front end 7 and every layer
It is identical, the reinforced steel bar ring 9 for the band reinforcing bar 8 that reinforced steel bar ring 9 and the corresponding baffle wall style front end 7 for the band reinforcing bar 8 that toe 5 is inserted into are inserted into
It is connected by the binding of rope 10.
Preferably, horizontal folder where the extended line for the band reinforcing bar 8 that the toe 5 is inserted into and 6 bottom of stilling pond
Angle is acute angle.
Preferably, 4 ogee section of defrlector bucket use circular curve, 3 middle straight line section of overfull dam surface respectively with dam
Push up 2 top overflow curves and the anti-arc contact of a curve of lower part defrlector bucket 4.
Preferably, the adjacent layer for the band reinforcing bar 8 that the band reinforcing bar 8 and baffle wall style front end 7 that the toe 5 is inserted into are inserted into
Between interval it is equal, the interval in same layer between adjacent two band reinforcing bars 8 is equal.
Preferably, the rope 10 selects the rope made of hemp.
Preferably, the band reinforcing bar 8 uses stainless reinforcing bar, 9 surface anticorrosion with painting coating of reinforced steel bar ring.
A kind of energy dissipating method of the discharge structure energy dissipator, includes the following steps:
Step1: gate 1 is opened when that need to discharge water and is discharged water；
Step2: it after the lower sluicing of high speed is followed by overfull dam surface 3, defrlector bucket 4, impacts on rope 10, impacts in rope
The water flow on 10 surfaces flows through stilling pond 9 after the energy dissipating of each layer of rope 10；
Step3: the water flow that stilling pond 9 flows out stablizes outflow after flowing through baffle wall style front end 7.
The beneficial effects of the present invention are:
(1) impact force that high-velocity flow tenesmus enters stilling pond is reduced layer by layer, prevents impact failure.
(2) make to flow to the flow-shape stabilization downstream into stilling pond, reduce flow turbulence.
(3) water flow dynamic energy is substantially reduced, is prevented to impact failures such as underwater bed, shore protection, side slopes.
(4) it reduces and downstream dissipator of energy work is built, reduce project cost.
Detailed description of the invention
Fig. 1 is the integrally-built elevation of the present invention.
Fig. 2 is the plan view of rope por-tion.
Each label in figure: 1- gate, 2- dam crest, 3- overfull dam surface, 4- defrlector bucket, 5- toe, 6- stilling pond, 7- disappear power
Bank front end, 8- reinforcing bar, 9- reinforced steel bar ring, 10- rope.
Specific embodiment
The present invention is further illustrated with reference to the accompanying drawings and detailed description.
Embodiment 1: as shown in Figs. 1-2, a kind of discharge structure energy dissipator, including gate 1, dam crest 2, overfull dam surface 3,
Defrlector bucket 4, toe 5, stilling pond 6, baffle wall style front end 7, reinforcing bar 8, reinforced steel bar ring 9, rope 10；
The setting of gate 1 is in 2 upper end of dam crest, and gate 1 is connected when closing with dam crest 2, and overfull dam surface 3 is connected under dam crest 2
Trip, the lower end of overfull dam surface 3 are connected with defrlector bucket 4, are toe 5 between overfull dam surface 3, defrlector bucket 4 and ground, choose stream nose
The downstream connection stilling pond 6 of bank 4,6 downstream of stilling pond are connected with baffle wall style front end 7, the Chi Kanxiang of toe 5 and 6 upstream of stilling pond
Even, the several layers band reinforcing bar 8 of interval insertion from top to bottom in toe 5, the quantity of every layer of band reinforcing bar 8 are several and interval point
Cloth, the end of every band reinforcing bar 8 are equipped with the reinforced steel bar ring 9 for exposing 6 head bay bank of stilling pond, in baffle wall style front end 7 from top to bottom
Interval insertion several layers band reinforcing bar 8, the quantity of every layer of band reinforcing bar 8 is several and is spaced apart, every band reinforcing bar 8
End be equipped with expose 6 downstream bath bank of stilling pond reinforced steel bar ring 9, toe 5 be inserted into band reinforcing bar 8 the number of plies and every layer in band steel
The quantity of band reinforcing bar 8, interval in the quantity of muscle 8, the number of plies at interval and the band reinforcing bar 8 of the insertion of baffle wall style front end 7 and every layer
It is identical, the reinforced steel bar ring 9 for the band reinforcing bar 8 that reinforced steel bar ring 9 and the corresponding baffle wall style front end 7 for the band reinforcing bar 8 that toe 5 is inserted into are inserted into
It is connected by the binding of rope 10, entire stilling pond 6 is made to be placed with rope 10 layer by layer above.
Gate 1 is used for water blocking and sluicing.After upstream throttle valve 1 discharges water, pour under the high speed of stilling pond 6 sluice stream first by
Rope 10 is accepted, and impacting the water flow on 10 surface of rope all reduces kinetic energy by each layer of rope 10, is had to water flow impact pressure
One buffer function.
Further, the extended line for the band reinforcing bar 8 that the toe 5 is inserted into and 6 bottom of stilling pond place are horizontal
Angle is acute angle.Angle is that acute angle is connect in 6 head bay bank of stilling pond with reinforced steel bar ring 9 under high speed water jet impact to let out under reducing
Locate the shear stress generated, guarantees that concrete structure stress condition is good at 6 head bay bank of stilling pond, and it is broken to prevent shearing
It is bad.
Further, 4 ogee section of defrlector bucket use circular curve, 3 middle straight line section of overfull dam surface respectively with
2 top overflow curve of dam crest and the anti-arc contact of a curve of lower part defrlector bucket 4.4 ogee section of defrlector bucket uses circular curve, can be with
The high-velocity flow let out under longitudinal dike is turned to, energy dissipating is facilitated.Dam body is higher, and flow velocity is bigger at anti-arc, and anti-arc radius is bigger.
Further, the band reinforcing bar 8 that the band reinforcing bar 8 and baffle wall style front end 7 that the toe 5 is inserted into are inserted into it is adjacent
Interval between layer is equal, and the interval in same layer between adjacent two band reinforcing bars 8 is equal.At equal intervals setting rope 10 be for
It is all right that high speed water jet impact waterpower on rope 10 is let out under guarantee, subtracts the lower sluicing energy of flow uniformly between rope 10 layer by layer
It is small, prevent the excessive situation of local stress.
Further, 10 material of rope preferably selects strong tension, acid and alkali-resistance, binding cold-resistant, easy to assemble, economical and practical fiber crops
Rope.
Further, the band reinforcing bar 8 uses stainless reinforcing bar, 9 surface anticorrosion with painting coating of reinforced steel bar ring.Due to reinforcing bar
Ring 9 is exposed at outside concrete and contacts with water, and corrosion can be effectively prevented in anticorrosion with painting coating.
The present invention is in specific installation process, and rope 10 is along dam axial alignment quantity and position according to joint bar quantity and downstream
Dam width determines that 10 length of rope is determined according to stilling pond length.10 number of plies of rope and every layer of rope quantity are all in accordance with actual downstream
Height of dam and dam width and river valley orographic condition are evenly arranged.The length of stilling pond 6, height, width should be high according to defrlector bucket 4
Degree, choose away from length, live geological conditions, hydraulics empirical equation calculate arrangement.8 joint bar quantity of band reinforcing bar, interval etc.
Meet corresponding design code requirement, security risk is not caused to dam body.
A kind of energy dissipating method of the discharge structure energy dissipator, includes the following steps:
Step1: gate 1 is opened when that need to discharge water and is discharged water；
Step2: it after the lower sluicing of high speed is followed by overfull dam surface 3, defrlector bucket 4, impacts on rope 10, impacts in rope
The water flow on 10 surfaces flows through stilling pond 9 after the energy dissipating of each layer of rope 10；
Step3: the water flow that stilling pond 9 flows out stablizes outflow after flowing through baffle wall style front end 7.
Present invention arrangement of stacked rope between Dam toe portion and the energy dissipater of energy dissipating section.When the lower sluicing of high speed flows through
It crosses when choosing bank, the rope 10 for being arranged in dam downstream accepts water flow, impacts the water flow on 10 surface of rope and passes through each layer of rope
All reduce kinetic energy, has a buffer function to water flow impact pressure.The present invention, which can reduce discharge structure and sluice to sluice at present, to flow
Underwater bed, bank slope, building are washed away, water project situation is improved, guarantee energy dissipating efficiency and downstream building safety and is subtracted
The project amount of energy dissipater is built less, reduces project cost.
In conjunction with attached drawing, the embodiment of the present invention is explained in detail above, but the present invention is not limited to above-mentioned
Embodiment within the knowledge of a person skilled in the art can also be before not departing from present inventive concept
Put that various changes can be made.
Claims (7)
1. a kind of discharge structure energy dissipator, it is characterised in that: including gate (1), dam crest (2), overfull dam surface (3), choose stream
Bucket lip (4), toe (5), stilling pond (6), baffle wall style front end (7), reinforcing bar (8), reinforced steel bar ring (9), rope (10)；
In dam crest (2) upper end, gate (1) is connected when closing with dam crest (2) for gate (1) setting, overfull dam surface (3) connection
In dam crest (2) downstream, the lower end of overfull dam surface (3) is connected with defrlector bucket (4), overfull dam surface (3), defrlector bucket (4) and ground
It is toe (5), the downstream connection stilling pond (6) of defrlector bucket (4), stilling pond (6) downstream and baffle wall style front end (7) phase between base
Even, toe (5) is connected with the Chi Kan of stilling pond (6) upstream, the several layers band reinforcing bar of interval insertion from top to bottom in toe (5)
(8), the quantity of every layer of band reinforcing bar (8) is several and is spaced apart, and the end of every band reinforcing bar (8), which is equipped with, exposes the power that disappears
The reinforced steel bar ring (9) of pond (6) head bay bank, interval insertion several layers band reinforcing bar (8) from top to bottom in baffle wall style front end (7), often
The quantity of layer band reinforcing bar (8) is several and is spaced apart that the end of every band reinforcing bar (8), which is equipped with, exposes stilling pond (6)
The quantity of the reinforced steel bar ring (9) of downstream bath bank, the number of plies of the band reinforcing bar (8) of toe (5) insertion and band reinforcing bar (8) in every layer,
Interval is identical as the quantity of band reinforcing bar (8), interval in the number of plies for the band reinforcing bar (8) that baffle wall style front end (7) are inserted into and every layer,
The steel for the band reinforcing bar (8) that the reinforced steel bar ring (9) of the band reinforcing bar (8) of toe (5) insertion is inserted into corresponding baffle wall style front end (7)
Muscle ring (9) is connected by rope (10) binding.
2. a kind of discharge structure energy dissipator according to claim 1, it is characterised in that: toe (5) insertion
Band reinforcing bar (8) extended line and stilling pond (6) bottom where horizontal angle be acute angle.
3. a kind of discharge structure energy dissipator according to claim 1, it is characterised in that: the defrlector bucket (4)
Ogee section uses circular curve, and overfull dam surface (3) middle straight line section chooses stream nose with dam crest (2) top overflow curve and lower part respectively
The anti-arc contact of a curve of bank (4).
4. a kind of discharge structure energy dissipator according to claim 1, it is characterised in that: toe (5) insertion
Band reinforcing bar (8) and baffle wall style front end (7) insertion band reinforcing bar (8) adjacent layer between interval it is equal, in same layer
Interval between adjacent two band reinforcing bars (8) is equal.
5. a kind of discharge structure energy dissipator according to claim 1, it is characterised in that: the rope (10) is selected
The rope made of hemp.
6. a kind of discharge structure energy dissipator according to claim 1, it is characterised in that: the band reinforcing bar (8)
Using stainless reinforcing bar, reinforced steel bar ring (9) surface anticorrosion with painting coating.
7. a kind of energy dissipating method of discharge structure energy dissipator described in any one of claims 1-6, it is characterised in that: including
Following steps:
Step1: gate (1) is opened when that need to discharge water and is discharged water；
Step2: it after the lower sluicing of high speed is followed by overfull dam surface (3), defrlector bucket (4), impacts on rope (10), impacts
Water flow on rope (10) surface flows through stilling pond (9) after the energy dissipating of each layer of rope (10)；
Step3: the water flow of stilling pond (9) outflow flows through baffle wall style front end (7) stable outflow afterwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910297380.2A CN110029636B (en) | 2019-04-15 | 2019-04-15 | Energy dissipation device and method for water release structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910297380.2A CN110029636B (en) | 2019-04-15 | 2019-04-15 | Energy dissipation device and method for water release structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110029636A true CN110029636A (en) | 2019-07-19 |
| CN110029636B CN110029636B (en) | 2021-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910297380.2A Expired - Fee Related CN110029636B (en) | 2019-04-15 | 2019-04-15 | Energy dissipation device and method for water release structure |
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| Country | Link |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU872631A2 (en) * | 1980-03-24 | 1981-10-15 | Украинское Отделение Всесоюзного Ордена Ленина Проектно-Изыскательского И Научно-Исследовательского Института "Гидропроект" Им. С.Я.Жука | Water flow energy attenuator |
| CN104480911A (en) * | 2014-10-24 | 2015-04-01 | 河海大学 | Flexible foundation energy dissipater structure |
| CN104652380A (en) * | 2015-01-22 | 2015-05-27 | 河海大学 | Novel matched variable slope spillway-based flood discharging system |
| CN204475286U (en) * | 2015-03-10 | 2015-07-15 | 丰顺县梅丰水电发展有限公司 | Novel hydropower absorption basin structure |
| CN205676859U (en) * | 2016-06-03 | 2016-11-09 | 国网新疆电力公司疆南供电公司 | Grid energy dissipation type flood discharge device |
| CN206128018U (en) * | 2016-11-02 | 2017-04-26 | 三峡大学 | Reticular fiber concrete structure's supplementary dissipation structure |
| CN107044111A (en) * | 2017-01-09 | 2017-08-15 | 山东大学 | The three-dimensional cell structure and energy dissipating method of a kind of sluicing gravity dam energy dissipating |
| CN206503125U (en) * | 2016-12-30 | 2017-09-19 | 史超群 | A kind of Novel water conservancy project energy dissipater structure |
| CN208533446U (en) * | 2018-03-16 | 2019-02-22 | 蒋益龙 | A kind of discharge structure structure of water conservancy |
-
2019
- 2019-04-15 CN CN201910297380.2A patent/CN110029636B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU872631A2 (en) * | 1980-03-24 | 1981-10-15 | Украинское Отделение Всесоюзного Ордена Ленина Проектно-Изыскательского И Научно-Исследовательского Института "Гидропроект" Им. С.Я.Жука | Water flow energy attenuator |
| CN104480911A (en) * | 2014-10-24 | 2015-04-01 | 河海大学 | Flexible foundation energy dissipater structure |
| CN104652380A (en) * | 2015-01-22 | 2015-05-27 | 河海大学 | Novel matched variable slope spillway-based flood discharging system |
| CN204475286U (en) * | 2015-03-10 | 2015-07-15 | 丰顺县梅丰水电发展有限公司 | Novel hydropower absorption basin structure |
| CN205676859U (en) * | 2016-06-03 | 2016-11-09 | 国网新疆电力公司疆南供电公司 | Grid energy dissipation type flood discharge device |
| CN206128018U (en) * | 2016-11-02 | 2017-04-26 | 三峡大学 | Reticular fiber concrete structure's supplementary dissipation structure |
| CN206503125U (en) * | 2016-12-30 | 2017-09-19 | 史超群 | A kind of Novel water conservancy project energy dissipater structure |
| CN107044111A (en) * | 2017-01-09 | 2017-08-15 | 山东大学 | The three-dimensional cell structure and energy dissipating method of a kind of sluicing gravity dam energy dissipating |
| CN208533446U (en) * | 2018-03-16 | 2019-02-22 | 蒋益龙 | A kind of discharge structure structure of water conservancy |
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| CN110029636B (en) | 2021-04-06 |
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Granted publication date: 20210406 |