CN106638504A - Energy dissipation and erosion control structure used for energy dissipation by bottom flow and used in water conservancy project - Google Patents
Energy dissipation and erosion control structure used for energy dissipation by bottom flow and used in water conservancy project Download PDFInfo
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- CN106638504A CN106638504A CN201610894674.XA CN201610894674A CN106638504A CN 106638504 A CN106638504 A CN 106638504A CN 201610894674 A CN201610894674 A CN 201610894674A CN 106638504 A CN106638504 A CN 106638504A
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- sluice
- energy dissipation
- dissipation
- downstream
- gate pier
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- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
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Abstract
The invention provides an energy dissipation and erosion control structure used for energy dissipation by bottom flow and used in a water conservancy project. The energy dissipation and erosion control structure comprises a sluice pier arranged at an upstream multi-hole sluice chamber section and a downstream wing wall reinforcing body arranged on a downstream wing wall, wherein the downstream wing wall reinforcing body is a section of wall attaching to the downstream wing wall in arrangement, an absorption basin is arranged at the tail portion of the sluice pier, and a partition wall is arranged at a front section of the absorption basin, is connected with the tail portion of a side hole sluice pier and is vertically intersected with a base plate of the absorption basin. The energy dissipation and erosion control structure has the advantages that a bad water flow regime produced due to the fact that a main flow is extruded by the boundary of the downstream wing wall reinforcing body is eliminated through the energy dissipation and erosion control structure, water flow velocity distribution under the sluice is uniformized, the maximum flow velocity of a riverbed is reduced, the erosion effect under the sluice is reduced, the safety of a riverway under the sluice and an embankment is ensured, and the energy dissipation and erosion control structure is simple in structure and can be popularized and used.
Description
Technical field
The present invention relates to hydraulic engineering field, and in particular to a kind of dividing wall for being conducive to reinforcement sluice dissipation and scouring
Formula dissipation and scouring structure.
Background technology
According to national hydraulic engineering basic condition findings of the survey in 2013, the cubic meters per second of China's lock flow 5 and more than
97019, sluice, be mainly distributed on Jiangsu, Hunan, Zhejiang, Guangdong and Hu Beiwu and save, 54.8% is accounted for altogether.The lock of Plain sluice
Lower dissipation and scouring is related to the safety of river course, dyke under the stability of sluice structure itself and lock.According to national sluice safety
The incomplete statistics of census operations, in all kinds of potential safety hazards of sluice, lock downstream dissipator of energy erosion control facility is badly damaged, and to account for 42% left
It is right.For sluice of the remote past is built, often exist local concrete aging, coarse aggregate expose, steel bar corrosion, cause bank
Wall, aileron, lock chamber lock wall etc. produce the hidden danger such as a large amount of cracks.
Generally require when reinforcement is carried out to sluice to gate pier extension supporting body, the newly-built steel bar concrete reinforcement of aileron
The process such as body (L-type wall).Although process of the sluice reinforcement to gate pier and aileron increased stablizing for structure, such as aileron
The Outlet boundary of current when newly-built armored concrete (L-type wall) etc. changes sluice flood discharge, easily produce bias current, main flow concentrate and
The bad fluidised form such as reflexion and scour flow, aggravates washing away for river course and bank slope under lock, the safe operation of impact sluice.Therefore, eliminate under lock
Bad flow-shape, flow rate of water flow distribution, reduces riverbed Peak Flow Rate under homogenizing lock, mitigates riverbed and bank slope under lock and washes away and be
It is very necessary.
In sum, there is provided a kind of separation wall dissipation and scouring structure for being conducive to reinforcement sluice dissipation and scouring, have
Effect solves the energy dissipation downstream of gate erosion control of reinforcement sluice, is hydraulic engineering technical staff's problem demanding prompt solution.
The content of the invention
The invention provides the dissipation and scouring structure of disspation through hydraudic jimp is eliminating main flow by downstream aileron in a kind of hydraulic engineering
Reinforcing body border extrudes and produces bad flow-shape, and flow rate of water flow distribution, reduces riverbed Peak Flow Rate under homogenizing lock, mitigates lock
Under the effect washed away.
In order to solve above-mentioned technical problem, the present invention is adopted the following technical scheme that：
The dissipation and scouring structure of disspation through hydraudic jimp in a kind of hydraulic engineering, is included in the gate pier that upstream porous lock chamber section is arranged,
The downstream aileron reinforcing body that aileron is arranged in downstream；The downstream aileron reinforcing body is the wall that one section of laminating downstream aileron is arranged
Body；The gate pier afterbody arranges stiling basin；The leading portion of the stiling basin arranges dividing wall, and the dividing wall connects lateral opening gate pier tail
Portion simultaneously intersects vertically with force reduction pool bottom.
Further, described dividing wall highly meets claimed below：
Hmax≤h2≤h1,
Wherein, h1For gate pier height, h2For the vertical partition wall height of the dividing wall, HmaxWith stiling basin bottom when sluicing for sluice
The downstream maximum water depth that plate is started at.
Further, described separation wall thickness is less than or equal to gate pier thickness.
Further, described dividing wall length is distance of the gate pier end to stiling basin slope end.
Further, the stiling basin end arranges stiling basin tail bank.
Further, described dividing wall is using intensity and gate pier identical reinforced concrete structure.
The invention has the beneficial effects as follows：The dissipation and scouring structure that the present invention is provided, eliminates because main flow is added by downstream aileron
Solid boundaries are extruded and produce bad flow-shape, and flow rate of water flow distribution, reduces riverbed Peak Flow Rate under homogenizing lock, mitigates lock
Under the effect washed away, it is ensured that the safety of river course, dyke under lock, and simple structure, can promote the use of.
Description of the drawings
With reference to the accompanying drawings and detailed description the invention will be further described：
Fig. 1 separates wall dissipation and scouring structural plan arrangement for the present invention；
Fig. 2 separates wall dissipation and scouring construction profile for the present invention；
In figure：1st, upstream porous lock chamber section；2nd, gate pier；3rd, dividing wall；4th, downstream aileron；5th, downstream aileron reinforcing body；6、
Stiling basin；7th, stiling basin tail bank.
Specific embodiment
Below in conjunction with the accompanying drawings the invention will be further described：
As depicted in figs. 1 and 2, in a kind of hydraulic engineering disspation through hydraudic jimp dissipation and scouring structure, be included in upstream porous lock
The gate pier (2) that room section (1) is arranged, downstream aileron reinforcing body (5) that aileron (4) is arranged in downstream；The downstream aileron reinforcing body
(5) be one section laminating downstream aileron arrange body of wall；Gate pier (2) afterbody arranges stiling basin (6)；The stiling basin (6)
Leading portion arranges dividing wall (3), and the dividing wall (3) connects lateral opening gate pier (2) afterbody and intersects vertically with stiling basin (6) base plate.
Further, described dividing wall (3) highly meets claimed below：
Hmax≤h2≤h1,
Wherein, h1For gate pier height, h2For the vertical partition wall height of the dividing wall, HmaxWith stiling basin bottom when sluicing for sluice
The downstream maximum water depth that plate is started at.
Further, described dividing wall (3) thickness is less than or equal to gate pier thickness.
Further, described dividing wall (3) length is distance of the gate pier end to stiling basin slope end.
Further, stiling basin (6) end arranges stiling basin tail bank (7).
Further, described dividing wall (3) is using intensity and gate pier (2) identical reinforced concrete structure.
During sluice earial drainage dividing wall can effectively by the two lateral opening lower sluicing streams by the extruding of downstream aileron reinforcing body with it is adjacent
Lock hole is isolated, eliminate the two lateral opening lower streams that sluice to middle part concentration phenomenon, make current be flowed along the path for arranging,
The generation of deflection current is prevented, and is homogenized active cross-section velocity flow profile, reduction is washed away to underwater bed and bank slope.
Embodiment:Engineering sluice totally 16 hole, per hole clear span 4.2m, lock chamber beam overall 81.24m, lock crest level 19.5m, pocket floor
Elevation 7.5m, using stiling basin energy dissipating, stiling basin bottom elevation 5.0m.Gate goes straight up to steel-slag sand for flat board.Upstream aileron circular arc half
Footpath is 50m, and downstream aileron is gravity type cemented rock structure, and arc radius are 40m.Reinforce for downstream aileron and change current
Boundary condition, causes water seal stream to be subject to border to extrude and main flow concentration, and the phenomenons such as aggravation are washed away in local velocity increase, are proposed
Water seal bias current flow, main flow are eliminated out using the present invention to concentrate, mitigate the method washed away.
Stiling basin Bottom Altitude be 5.00m, gate pier end to stiling basin slope tip length be 12.00m, gate floor elevation
For 7.50m, gate pier thickness is 0.75m, and stiling basin bottom level segment length is 30.00m, in 1#, 2# lock hole and 15# and 16#
Increase dividing wall between lock hole (pass through numbering), dividing wall length is 12.00m, separates wall crest elevation and downstream
Peak level is identical, is 11.50m.It is 0.40m wherein to separate wall thickness, and the height of dividing wall is 6.50m, and stiling basin tail bank is high
Spend for 2.40m, bank crest level is 7.40m.
Table 1 give whether there is the lower anti-scour trench end section flow rate of water flow profiles versus of dividing wall effect (upper pond level 16.0m,
Level of tail water 11.0m, lock flow 800m3/s)。
Table 1 whether there is lower stiling basin end section flow rate of water flow profiles versus (m/s) of dividing wall effect
The foundation of both sides dividing wall, effectively by two it is lateral opening isolated with adjacent lock hole, dividing wall can during sluice earial drainage
Effectively by two it is lateral opening by downstream aileron reinforcing body extruding under the current let out isolated with adjacent lock hole, eliminate two it is lateral opening under
Sluice stream to middle part concentration phenomenon, make current be flowed along the path for arranging, prevent the generation of deflection current, and make current
Cross-sectional flow distribution is homogenized, and reduction is washed away to underwater bed and bank slope.
Above-described is only embodiments of the invention, it is noted that for a person skilled in the art, is not being taken off
On the premise of present configuration, some deformations and improvement can also be made, these should also be considered as protection scope of the present invention.
Claims (6)
1. in a kind of hydraulic engineering disspation through hydraudic jimp dissipation and scouring structure, it is characterised in that be included in upstream porous lock chamber section and set
The gate pier put, the downstream aileron reinforcing body that aileron is arranged in downstream；The downstream aileron reinforcing body is one section of laminating downstream aileron
The body of wall of setting；The gate pier afterbody arranges stiling basin；The leading portion of the stiling basin arranges dividing wall, and the dividing wall connects side
Hole gate pier afterbody simultaneously intersects vertically with the force reduction pool bottom.
2. in a kind of hydraulic engineering according to claim 1 disspation through hydraudic jimp dissipation and scouring structure, it is characterised in that it is described
Dividing wall highly meet claimed below：
Hmax≤h2≤h1,
Wherein, h1For gate pier height, h2For the vertical partition wall height of the dividing wall, HmaxRisen with force reduction pool bottom when sluicing for sluice
The downstream maximum water depth of calculation.
3. in a kind of hydraulic engineering according to claim 1 disspation through hydraudic jimp dissipation and scouring structure, it is characterised in that it is described
Separation wall thickness be less than or equal to gate pier thickness.
4. in a kind of hydraulic engineering according to claim 1 disspation through hydraudic jimp dissipation and scouring structure, it is characterised in that it is described
Dividing wall length be gate pier end to stiling basin slope end distance.
5. in a kind of hydraulic engineering according to claim 1 disspation through hydraudic jimp dissipation and scouring structure, it is characterised in that it is described
Stiling basin end arranges stiling basin tail bank.
6. in a kind of hydraulic engineering according to claim 1 disspation through hydraudic jimp dissipation and scouring structure, it is characterised in that it is described
Dividing wall using intensity and gate pier identical reinforced concrete structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610894674.XA CN106638504B (en) | 2016-10-13 | 2016-10-13 | The dissipation and scouring structure of energy dissipation by hydraulic jump in a kind of hydraulic engineering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610894674.XA CN106638504B (en) | 2016-10-13 | 2016-10-13 | The dissipation and scouring structure of energy dissipation by hydraulic jump in a kind of hydraulic engineering |
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| Publication Number | Publication Date |
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| CN106638504A true CN106638504A (en) | 2017-05-10 |
| CN106638504B CN106638504B (en) | 2019-11-15 |
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| CN201610894674.XA Active CN106638504B (en) | 2016-10-13 | 2016-10-13 | The dissipation and scouring structure of energy dissipation by hydraulic jump in a kind of hydraulic engineering |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107288105A (en) * | 2017-07-11 | 2017-10-24 | 浙江省水利水电勘测设计院 | A kind of special-shaped block energy-dissipating structure |
| CN113136840A (en) * | 2021-05-21 | 2021-07-20 | 江苏省水利勘测设计研究院有限公司 | Energy dissipation scour protection facility is led to river in hydraulic engineering sluice low reaches |
| CN116305473A (en) * | 2023-03-23 | 2023-06-23 | 水利部交通运输部国家能源局南京水利科学研究院 | Block safe and stable design method for downstream energy dissipation bottom plate of steel dam gate |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107288105A (en) * | 2017-07-11 | 2017-10-24 | 浙江省水利水电勘测设计院 | A kind of special-shaped block energy-dissipating structure |
| CN113136840A (en) * | 2021-05-21 | 2021-07-20 | 江苏省水利勘测设计研究院有限公司 | Energy dissipation scour protection facility is led to river in hydraulic engineering sluice low reaches |
| CN116305473A (en) * | 2023-03-23 | 2023-06-23 | 水利部交通运输部国家能源局南京水利科学研究院 | Block safe and stable design method for downstream energy dissipation bottom plate of steel dam gate |
| CN116305473B (en) * | 2023-03-23 | 2023-10-03 | 水利部交通运输部国家能源局南京水利科学研究院 | Block safe and stable design method for downstream energy dissipation bottom plate of steel dam gate |
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| Publication number | Publication date |
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| CN106638504B (en) | 2019-11-15 |
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