CN103898882A - Classified pool-inlet high-dam flood discharge energy dissipater for bottom flow and energy dissipating method - Google Patents
Classified pool-inlet high-dam flood discharge energy dissipater for bottom flow and energy dissipating method Download PDFInfo
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Abstract
The invention discloses a classified pool-inlet high-dam flood discharge energy dissipater for bottom flow. The classified pool-inlet high-dam flood discharge energy dissipater comprises a gravity dam and an absorption basin. At least two different elevation positions in a body of the gravity dam are provided with flow discharging channels extending downstream respectively, and falling banks are arranged below outlets of the flow discharging channels, wherein the falling banks are internally provided with ventilation galleries and ventilation holes. At least three levels of steps are sequentially arranged in the absorption basin from the upstream part to the downstream part. When flow passes through the top and the interior of the dam at the same time, the outlets of the flow discharging channels are sequentially located on vertical faces of the steps, with the corresponding level numbers from the upstream part to the downstream part, in the absorption basin from high to low according to the elevation of the outlets. When the flow only passes through the interior of the dam, the outlets of all the flow discharging channels are sequentially located on the vertical face at the starting position of the first-level step in the absorption basin and the vertical faces of the steps with the corresponding level numbers from the upstream part to the downstream part in the absorption basin from high to low according to the elevations of the outlets. With the energy dissipater, water in a reservoir enters the absorption basin from the flow discharging channels at the different elevations or from the top of the gravity dam and the flow discharging channels of the different elevations, and the water is scattered on the faces of the steps with the corresponding level numbers from the upstream part to the downstream part respectively in the absorption basin for energy dissipation.
Description
Technical field
The invention belongs to Hydraulic and Hydro-Power Engineering flood discharge technical field, particularly high dam flood discharge disspation through hydraudic jimp work and energy dissipating method.
Background technology
Early stage high dam flood discharge disspation through hydraudic jimp work forms (see figure 1) by gravity dam and absorption basin, the mode of utilizing dam crest overflow, downstream to connect absorption basin realizes energy dissipating, lower sluicing stream produces hydraulic jump in absorption basin, main flow is impacted water body in absorption basin, surface produces rotary roll, raw strong blending, shearing, the aeration of pool inner water miscarriage, thus be that heat energy reduces flow rate of water flow the kinetic transformation of lower sluicing stream, fluidised form becomes unhurried current from torrent, and water is connected with downstream water levelling is suitable after flowing out absorption basin.Along with the increase of gravity height of dam, it is large that absorption basin underflow speed becomes, and concrete resistance to impact and abrasion can not meet the demands, need to reduce absorption basin and face low flow velocity, thereby occur being provided with falling the absorption basin (see figure 2) of bank and adopting differential horizontal mode of jet and absorption basin to establish and fall the combined technical scheme of bank (seeing Fig. 3 (a) and (b)).When build gravity dam on heavily silt-carrying river, consider the requirement of sand discharge and reduction reservoir level, adopt mesopore or bottom outlet flood discharge that import elevation is low, downstream utilizes absorption basin energy dissipating (see figure 4).However,, from built engineering both domestic and external, adopt the high water head of disspation through hydraudic jimp, large flow outlet structure escape works to be in operation to occur the example destroying many.Trace it to its cause, mainly that existing high dam flood discharge disspation through hydraudic jimp work exists the problem of " current are concentrated into pond at same section ", because current are concentrated into pond at same section, the energy dissipating load of absorption basin front portion is large, the a large amount of water bodys of postmedian are not utilized to energy dissipating, strong turbulence flow produces strong fluctuating load effect to absorption basin front floor like this, this load may directly cause plate unstable failure, or cause after the destruction of sealing between plate, because the transmission of high-velocity flow flowing pressure causes plate unstable failure.Moreover current enter after absorption basin, high speed main flow is positioned at bottom, easily absorption basin base plate is produced to abrasion and destroys (seeing Fig. 1, Fig. 2, Fig. 4).
Summary of the invention
The object of the invention is to for the deficiencies in the prior art, the high dam flood discharge disspation through hydraudic jimp work and the energy dissipating method that provide classification to enter pond, the problem existing to solve high water head, large flow disspation through hydraudic jimp, improves application life and the energy dissipation rate of high dam flood discharge disspation through hydraudic jimp work.
Classification of the present invention enters the high dam flood discharge disspation through hydraudic jimp work in pond, comprise gravity dam and absorption basin, in described gravity dam dam body, at least two different elevations places are respectively arranged with the current by pass extending downstream, described current by pass outlet below is with falling bank, fall in bank ventilation gallery and air vent are set, in described absorption basin, be disposed with at least three grades of steps from upstream to downstream, when in dam crest and dam simultaneously when overcurrent, the outlet of each current by pass by its elevation from height to low be positioned at successively absorption basin from upstream to downstream the vertical plane of corresponding progression step, the i.e. outlet of the first elevation (claim again elevation) current by pass is positioned at the vertical plane of the upstream of absorption basin first order step, the outlet of the second elevation current by pass is positioned at the vertical plane of absorption basin second level step,, the outlet of n elevation current by pass is positioned at the vertical plane of absorption basin n level step, when in dam only when overcurrent, the outlet of each current by pass by its elevation from height to the low vertical plane that is positioned at successively absorption basin first order step section start, in absorption basin from upstream to downstream the vertical plane of corresponding progression step, the i.e. outlet of the first elevation (claim again elevation) current by pass is positioned at the vertical plane of the upstream of absorption basin first order step section start, the outlet of the second elevation current by pass is positioned at the vertical plane of the upstream of absorption basin first order step, the outlet of third high journey current by pass is positioned at the vertical plane of absorption basin second level step, the outlet of n elevation current by pass is positioned at the vertical plane of absorption basin (n-1) level step.
Above-mentioned high dam flood discharge disspation through hydraudic jimp work, in the time carrying out current by pass design, needs satisfied condition to be: the distance h between center line and the reservoir water surface of the current by pass import that elevation is the highest
1ying Shigai import department does not form air-breathing whirlpool, and the current by pass import bottom that elevation is minimum should be not less than dead water level.For the current by pass between the highest current by pass of elevation and the minimum current by pass of elevation, without specific (special) requirements, generally design to be evenly distributed.In order to improve energy dissipation rate, the current by pass that is positioned at same elevation is at least two.
The concrete size of described current by pass need to consider the parameters such as the volume in water flow, flow rate of water flow and waters, downstream, according to energy dissipating, how many and downstream flow-shape requires to be determined by hydraulic model test.The current by pass size of different elevations can be identical, also can be different, and the current by pass size of same elevation also can be identical, can be different.The cross section of current by pass is generally circle, and wall is smooth, adopts concrete or steel plate liner.
Above-mentioned classification enters the high dam flood discharge disspation through hydraudic jimp work in pond, and the length that in its absorption basin, every one-level step surface extends downstream is evenly as the criterion along the horizontal proliferation of this step surface with the water flowing value on this step surface.
Above-mentioned classification enters the high dam flood discharge disspation through hydraudic jimp work in pond, its current by pass import department is provided with and controls current and enter the valve of current by pass, instantly while letting out perennial flood period, can be according to the natural law of water temperature of reservoir layering, the current by pass of opening different elevations discharges water, to meet the requirement of downstream biology to lower sluicing temperature.
Above-mentioned classification enters the high dam flood discharge disspation through hydraudic jimp work in pond, described in to fall the size (diameter or height) of height with the current by pass cross section of bank relevant, be generally current by pass cross-sectional diameter or height 0.5 times～2 times.Fall the cross section of the air vent arranging in bank for circular or square, the preferred shape of threads of internal face, being beneficial to current is entrainmented, thereby facilitates air to enter.Fall the cross section of the ventilation gallery arranging in bank for circular, gateway opening type (stalk crown type) or square, also can be the combination of two kinds of form of fractures, mainly by whether convenient decision of constructing.
Above-mentioned classification enters the high dam flood discharge disspation through hydraudic jimp work in pond, and the steps at different levels in its absorption basin and the base plate in step downstream are generally reinforced concrete structure, and surface requirements is smooth, can adopt steel plate liner.
Classification of the present invention enters the high dam flood discharge bottom flow energy dissipation method in pond, use above-mentioned classification to enter the high dam flood discharge disspation through hydraudic jimp work in pond, make water in reservoir area enter absorption basin and be dispersed in respectively the step surface from upstream to the corresponding progression in downstream in absorption basin from the current by pass of different elevations or from the current by pass of gravity dam top and different elevations and carry out energy dissipating, be positioned at the horizontal proliferation along its step surface of momentum that the water body of each step surface carries, be tending towards being uniformly distributed, thereby realize energy dissipating.
The mechanism of energy dissipation of every one-level step is identical, make full use of from the shear layer between jet and the downstream current of current by pass, the multistage whirlpool that quantity of formation is numerous, kinetic energy by large scale whirlpool to small scale whirlpool unidirectional delivery, in the time that the yardstick of minimum one-level whirlpool is suitable with Como Ge Luofu yardstick, flow viscosity consumes the kinetic energy of the little whirlpool of this yardstick, is converted to heat energy, thereby reaches the object that reduces water body kinetic energy, switching energy.The kinetic energy of every one-level step conversion is mainly determined by parameters such as water flow and outlet flow rate of water flow in the discrepancy in elevation of adjacent two-stage step, current by pass.
The present invention has following beneficial effect:
(1) the high dam flood discharge disspation through hydraudic jimp work that enters pond due to classification of the present invention can be delivered to the different step surfaces place in absorption basin by the current by pass of different elevations by the current in reservoir area, disperse the huge kinetic energy of time sluicing stream, greatly reduce water and flowed into the fluctuating load that pond place absorption basin base plate bears, thereby the destruction of absorption basin base plate is curbed, can improve application life.
(2) the current by pass outlet below of high dam flood discharge disspation through hydraudic jimp work that enters pond due to classification of the present invention is with falling bank, fall ventilation gallery and air vent are set in bank, thereby in the time of current by pass overcurrent, current in jet entrainment current by pass, the gallery internal gas pressure that causes ventilating reduces, pressure differential air enters jet downstream water body, can reduce the cavitation corrosion risk of high-velocity flow to limit, waters, downstream wall.
(3) use classification of the present invention to enter the high dam flood discharge disspation through hydraudic jimp work in pond, can make water in reservoir area enter absorption basin and the step surfaces at different levels that are dispersed in respectively in absorption basin carry out energy dissipating from the current by pass of different elevations or from the current by pass of gravity dam top and different elevations, thereby improve energy dissipation rate.
(4) the current by pass import department that enters the high dam flood discharge disspation through hydraudic jimp work in pond due to classification of the present invention is provided with the valve of controlling current and enter current by pass, thereby while instantly letting out perennial flood period, can be according to the natural law of water temperature of reservoir layering, the current by pass of opening different elevations discharges water, to meet the requirement of downstream biology to lower sluicing temperature.
Accompanying drawing explanation
Fig. 1 is the first structural representation of dam crest overflow-type disspation through hydraudic jimp work of the prior art.
Fig. 2 is the second structural representation of dam crest overflow-type disspation through hydraudic jimp work of the prior art.
Fig. 3 (a) is the third structural representation of while overflow-type disspation through hydraudic jimp work in dam crest of the prior art and dam.
Fig. 3 (b) is the A-A sectional drawing of Fig. 3 (a).
Fig. 4 is a kind of structural representation of overflow-type disspation through hydraudic jimp work in dam of the prior art.
Fig. 5 is a kind of structural representation that classification of the present invention enters the high dam flood discharge disspation through hydraudic jimp work in pond.
Fig. 6 is the top view of Fig. 5.
Fig. 7 is a kind of schematic diagram that falls the setting position of bank, ventilation gallery and air vent and shape, structure.
Fig. 8 is that the momentum that lower sluicing stream carries is tending towards equally distributed schematic diagram after step surface horizontal proliferation.
Fig. 9 is another structural representation that classification of the present invention enters the high dam flood discharge disspation through hydraudic jimp work in pond.
Figure 10 is the top view of Fig. 9.
In figure: 1-reservoir area; 2-gravity dam; 3-absorption basin; 4-tail bank; 5-current by pass; 6-fall bank; 7-first order step; 8-second level step; 9-third level step; 10-fourth stage step; 11-gate valve; 12-dead water level; 13-ventilation gallery; 14-air vent; h
1distance between center line and the reservoir water surface of the current by pass import that-elevation is the highest; d
1, d
2, d
3-be the current by pass diameter of different elevations; l
1-first order length of bench; l
2-second level length of bench; l
3-third level length of bench; l
4-fourth stage length of bench; L-absorption basin length; B-absorption basin width.
The specific embodiment
The high dam flood discharge disspation through hydraudic jimp work and the energy dissipating method that by embodiment, classification of the present invention are entered to pond below in conjunction with accompanying drawing are described further.
In the present embodiment, the maximum bleeder quantity of reservoir area is 10578m
3/ s, while overcurrent in dam crest and dam, the maximum height of dam 103m of gravity dam, gravity dam peak level is 67m to the drop of level of dead water, a little less than underwater bed impact resistance, can be for the about 40m of river width that builds absorption basin.
Described in the present embodiment classification enter pond high dam flood discharge disspation through hydraudic jimp work structure as shown in Figure 5, Figure 6.In absorption basin 3, be disposed with level Four step, the length l of first order step from upstream to downstream
1for 11.0m, the length l of second level step
2length l with third level step
3be 9.5m, the length l of fourth stage step
4for 12.0m, the vertical plane height of first order step section start is that 6m(is step height), the height of first order step, second level step and third level step vertical plane is 15m, and the length L of absorption basin is 80m, and width B is 40m.At gravity dam top, by being set, gate pier forms dam crest flow channels; Three different elevations places in gravity dam dam body are respectively arranged with the current by pass 5 extending downstream, by current by pass called after the highest elevation the first elevation current by pass, by elevation time high current by pass called after the second elevation flood discharge passage, by current by pass called after third high journey flood discharge passage minimum elevation, the distance h between center line and the reservoir water surface of the first elevation current by pass import
1=23m, third high journey flood discharge channel entrance bottom is concordant with dead water level 12, and the distance between the center line of the second elevation flood discharge channel entrance and the first elevation current by pass center line is 20m; The outlet of the first elevation current by pass is positioned at the vertical plane of first order step 7, and the outlet of the second elevation current by pass is positioned at the vertical plane of second level step 8, and the outlet of third high journey current by pass is positioned at the vertical plane of third level step 9.The first elevation current by pass is three, is evenly arranged along absorption basin width at horizontal plane, and the spacing between adjacent the first elevation current by pass is 4m, and a first elevation current by pass center line in the middle of being wherein positioned at overlaps with absorption basin center line; The second elevation current by pass is two, along water (flow) direction, distance between second elevation current by pass center line and the absorption basin left side abutment wall in left side is 14m, and the distance between second elevation current by pass center line and the absorption basin right side abutment wall on right side is 14m; Third high journey current by pass is two, along water (flow) direction, distance between third high journey current by pass center line and the absorption basin left side abutment wall in left side is 8m, and the distance between third high journey current by pass center line and the absorption basin right side abutment wall on right side is 8m; The current by pass cross section of each elevation is circle, and the diameter of three the first elevation current by pass is d
1, the diameter of two the second elevation current by pass is d
2, the diameter of two third high journey current by pass is d
3, described d
1=d
2=d
3=8.0m.The current by pass 5 outlet below of each elevation is all fallen bank and is overlapped with the vertical plane of respective step with falling bank 6(), the described height that falls bank is 6m, described falling arranges ventilation gallery 13 and air vent 14 in bank, the section of ventilation gallery 13 is gateway opening shape, high 3.5m, crown central angle is that the section of 120 ° of air vents 14 is the square of wide 1m, high 1m, as shown in Figure 7.The current by pass import department of each elevation is provided with and controls current and enter the valve 11 of current by pass.
Described in use the present embodiment, classification enters the high dam flood discharge disspation through hydraudic jimp work in pond, water in reservoir area 1 respectively from gravity dam 2 tops, the first elevation current by pass, the second elevation current by pass and third high journey current by pass enter absorption basin 2, and be dispersed in respectively on first order step surface 7 in absorption basin, first order step surface 8, third level step surface 9, fourth stage step surface 10 and carry out energy dissipating, be positioned at the horizontal proliferation along its step surface of momentum that the water body of each step surface carries, be tending towards being uniformly distributed (see figure 8), thereby realize energy dissipating.
Hydraulic model test result shows, uses classification described in the present embodiment to enter the high dam flood discharge disspation through hydraudic jimp work in pond, and energy dissipation rate is up to 87%, and compared with existing disspation through hydraudic jimp work shown in Fig. 3, energy dissipation rate improves 7%～12%.Owing to disperseing sluicing, subregion energy dissipating, the maximum underflow speed of absorption basin, lower than 18m/s, does not form high strength whirlpool, and base plate vicinity flow fluctuation pressure root mean square is than the remarkable reduction of traditional absorption basin.
The high dam flood discharge disspation through hydraudic jimp work that described in the present embodiment, classification enters pond is in meeting energy dissipating erosion control, while releasing frequent flood, can the requirement to lower sluicing temperature according to environmental administration, open the spilled water hole of different elevations, the current of the different temperatures of releasing meet the ecological environment in downstream to the requirement of water temperature.
In the present embodiment, the maximum bleeder quantity of reservoir area is 7200m
3/ s, only overcurrent in dam, the maximum height of dam 73m of gravity dam, gravity dam peak level is 50m to the drop of level of dead water, a little less than underwater bed impact resistance, can be for the about 38m of river width that builds absorption basin.
Described in the present embodiment classification enter pond high dam flood discharge disspation through hydraudic jimp work structure as shown in Figure 9, Figure 10.In absorption basin 3, be disposed with three grades of steps, the length l of first order step from upstream to downstream
1for 8.0m, the height of vertical plane is 14.8m, the length l of second level step
2for 9.0m, the height of vertical plane is 14.6m, the length l of third level step
3for 10.5m, the height of vertical plane is 14.4m, and the length L of absorption basin is 57m, and width B is 43m.Three different elevations places in gravity dam dam body are respectively arranged with the current by pass 5 extending downstream, by current by pass called after the highest elevation the first elevation current by pass, by elevation time high current by pass called after the second elevation flood discharge passage, by current by pass called after third high journey flood discharge passage minimum elevation, the distance h between center line and the reservoir water surface of the first elevation current by pass import
1=15m, third high journey flood discharge channel entrance bottom is higher than dead water level 12, and and dead water level 12 between distance be 1m, the distance between the center line of the second elevation flood discharge channel entrance and the first elevation current by pass center line is 15m; The outlet of the first elevation current by pass is positioned at the vertical plane of first order step 7 section starts, and the outlet of the second elevation current by pass is positioned at the vertical plane of first order step 7, and the outlet of third high journey current by pass is positioned at the vertical plane of second level step 8.The first elevation current by pass is three, and the spacing between adjacent the first elevation current by pass is 4m, and a first elevation current by pass center line in the middle of being wherein positioned at overlaps with absorption basin center line; The second elevation current by pass is two, along water (flow) direction, distance between second elevation current by pass center line and the absorption basin left side abutment wall in left side is 13m, and the distance on the left of second elevation current by pass center line on right side and absorption basin between abutment wall is 13m; Third high journey current by pass is two, along water (flow) direction, distance between third high journey current by pass center line and the absorption basin left side abutment wall in left side is 8.2m, and the distance on the left of third high journey current by pass center line on right side and absorption basin between abutment wall is 8.2m; The current by pass cross section of each elevation is circle, and the diameter of three the first elevation current by pass is d
1, described d
1=8.2m, the diameter of two the second elevation current by pass is d
2, described d
2=8.0m, the diameter of two third high journey current by pass is d
3, described d
3=7.8m.The current by pass 5 outlet below of each elevation is all fallen bank and is overlapped with the vertical plane of respective step with falling bank 6(), the described height that falls bank is 5.6m, described falling arranges ventilation gallery 13 and air vent 14 in bank, the section of ventilation gallery 13 is gateway opening shape, the high 2.5m of stalk, crown central angle is 180 °, and the section of air vent 14 is the square of wide 1m, high 1m, as shown in Figure 7.The current by pass import department of each elevation is provided with and controls current and enter the valve (11) of current by pass.
Described in use the present embodiment, classification enters the high dam flood discharge disspation through hydraudic jimp work in pond, water in reservoir area 1 enters absorption basin 2 from the first elevation current by pass, the second elevation current by pass and third high journey current by pass respectively, and be dispersed in respectively on first order step surface 7 in absorption basin, first order step surface 8, third level step surface 9 and carry out energy dissipating, be positioned at the horizontal proliferation along its step surface of momentum that the water body of each step surface carries, be tending towards being uniformly distributed (see figure 8), thereby realize energy dissipating.
Hydraulic model test result shows, uses classification described in the present embodiment to enter the high dam flood discharge disspation through hydraudic jimp work in pond, and energy dissipation rate is up to 89%, and compared with existing disspation through hydraudic jimp work shown in Fig. 4, energy dissipation rate improves 8%～12%.Owing to disperseing sluicing, subregion energy dissipating, the maximum underflow speed of absorption basin, lower than 15m/s, does not form high strength whirlpool, and base plate vicinity flow fluctuation pressure root mean square is than the remarkable reduction of traditional absorption basin.
The high dam flood discharge disspation through hydraudic jimp work that described in the present embodiment, classification enters pond is in meeting energy dissipating erosion control, while releasing frequent flood, can the requirement to lower sluicing temperature according to environmental administration, open the spilled water hole of different elevations, the current of the different temperatures of releasing meet the ecological environment in downstream to the requirement of water temperature.
Claims (10)
1. classification enters the high dam flood discharge disspation through hydraudic jimp work in pond, comprise gravity dam (2) and absorption basin (3), it is characterized in that in described gravity dam dam body, at least two different elevations places are respectively arranged with the current by pass (5) extending downstream, described current by pass (5) outlet below is with falling bank (6), fall in bank ventilation gallery (13) and air vent (14) are set, in described absorption basin (3), be disposed with at least three grades of steps from upstream to downstream;
When in dam crest and dam simultaneously when overcurrent, the outlet of each current by pass (5) by its elevation from height to low be positioned at successively absorption basin from upstream to downstream the vertical plane of corresponding progression step; When in dam only when overcurrent, the outlet of each current by pass (5) by its elevation from height to being lowly positioned at successively the vertical plane of absorption basin first order step section start, the vertical plane of corresponding progression step from upstream to downstream.
2. classification enters the high dam flood discharge disspation through hydraudic jimp work in pond according to claim 1, it is characterized in that the distance (h between center line and the reservoir water surface of the current by pass import that elevation is the highest
1) Ying Shigai import department do not form air-breathing whirlpool, the current by pass import bottom that elevation is minimum is not less than dead water level.
3. the high dam flood discharge disspation through hydraudic jimp work that enters pond according to classification described in claim 1 or 2, the current by pass (5) that it is characterized in that being positioned at same elevation is at least two.
4. enter the high dam flood discharge disspation through hydraudic jimp work in pond according to classification described in claim 1 or 2, it is characterized in that the length that in absorption basin (3), every one-level step surface extends downstream is evenly as the criterion along the horizontal proliferation of this step surface with the water flowing value on this step surface.
5. classification enters the high dam flood discharge disspation through hydraudic jimp work in pond according to claim 3, it is characterized in that the length that in absorption basin (3), every one-level step surface extends downstream is evenly as the criterion along the horizontal proliferation of this step surface with the water flowing value on this step surface.
6. enter the high dam flood discharge disspation through hydraudic jimp work in pond according to classification described in claim 1 or 2, it is characterized in that current by pass (5) import department is provided with to control current and enter the valve (11) of current by pass.
7. classification enters the high dam flood discharge disspation through hydraudic jimp work in pond according to claim 3, it is characterized in that current by pass (5) import department is provided with the valve (11) of controlling current and enter current by pass.
8. classification enters the high dam flood discharge disspation through hydraudic jimp work in pond according to claim 4, it is characterized in that current by pass (5) import department is provided with the valve (11) of controlling current and enter current by pass.
9. classification enters the high dam flood discharge disspation through hydraudic jimp work in pond according to claim 5, it is characterized in that current by pass (5) import department is provided with the valve (11) of controlling current and enter current by pass.
10. a classification enters the high dam flood discharge bottom flow energy dissipation method in pond, it is characterized in that right to use requires in 1 to 9 energy dissipater described in arbitrary claim, make water in reservoir area enter absorption basin and be dispersed in respectively the step surface from upstream to the corresponding progression in downstream in absorption basin from the current by pass (5) of different elevations or from the current by pass (5) of gravity dam (2) top and different elevations and carry out energy dissipating, be positioned at the horizontal proliferation along its step surface of momentum that the water body of each step surface carries, be tending towards being uniformly distributed, thereby realize energy dissipating.
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| CN115369815A (en) * | 2022-08-09 | 2022-11-22 | 中国电建集团中南勘测设计研究院有限公司 | Energy dissipation structure with multiple flood discharge and energy dissipation modes and energy dissipation method |
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| CN201635060U (en) * | 2009-11-23 | 2010-11-17 | 广东省电力设计研究院 | High-waterhead flow energy dissipation device |
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| CN106013009B (en) * | 2016-06-28 | 2018-01-09 | 四川大学 | A kind of more counter-slope formula stiling basins |
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| CN108797531A (en) * | 2018-05-03 | 2018-11-13 | 四川大学 | A kind of induced joint flood-discharge energy-dissipating facility that both sides bottom plate is gradually raised |
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| CN112813922A (en) * | 2021-01-06 | 2021-05-18 | 西南科技大学 | Active-passive debris flow water-stone separation-energy dissipation disaster reduction device |
| CN113322907A (en) * | 2021-06-29 | 2021-08-31 | 中国电建集团贵阳勘测设计研究院有限公司 | Drainage aeration system of upper and lower stream intercommunication |
| CN115369815A (en) * | 2022-08-09 | 2022-11-22 | 中国电建集团中南勘测设计研究院有限公司 | Energy dissipation structure with multiple flood discharge and energy dissipation modes and energy dissipation method |
| CN115369815B (en) * | 2022-08-09 | 2023-11-07 | 中国电建集团中南勘测设计研究院有限公司 | Energy dissipation structure with various flood discharge energy dissipation modes and energy dissipation method |
| CN115613529A (en) * | 2022-10-28 | 2023-01-17 | 中国电建集团贵阳勘测设计研究院有限公司 | Arrangement structure of high-head ecological flow sluicing tunnel |
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