CN206529737U - A kind of water power hydraulic engineering energy dissipating area safeguard structure - Google Patents
A kind of water power hydraulic engineering energy dissipating area safeguard structure Download PDFInfo
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- CN206529737U CN206529737U CN201720067384.8U CN201720067384U CN206529737U CN 206529737 U CN206529737 U CN 206529737U CN 201720067384 U CN201720067384 U CN 201720067384U CN 206529737 U CN206529737 U CN 206529737U
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- energy dissipating
- yokogawa
- barricade
- dissipating area
- protection
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Abstract
The utility model discloses a kind of water power hydraulic engineering energy dissipating area safeguard structure, wall is led in the longitudinal direction for arranging flood-discharge energy-dissipating building by riverbank in riverbed；Wall, which is led, with longitudinal direction closes the Yokogawa being connected to barricade；Yokogawa along elevation direction to being provided with multilayer osculum on barricade；Bank slope is protected by anhydrous or inner lead level of protection in closed section.Yokogawa longitudinally leads wall exit to barricade positioned at energy-disspating.Yokogawa is higher than the corresponding downstream extreme high water of engineering standard of flood to barricade crest level.Energy dissipating area is the narrow energy dissipating area in river valley.The utility model uses the theory of " anti-to block generation " protection, active defense is changed into from conventional passive protection, energy dissipating area current and nearly dam bank slope are completely separated, prevent lower sluicing stream is called in person from the nearly dam bank slope of backwashing or downstream dam, so as to reduce the protection works amount of nearly dam bank slope, the construction period is also saved.
Description
Technical field
The utility model is related to the energy dissipating area safeguard structure in a kind of water power hydraulic engineering, and be particularly suitable for use in energy dissipating area river valley
More narrow energy dissipating area protection.
Background technology
In water power hydraulic engineering in the protection of energy dissipating area, because energy-disspating exit also has part flow energy not have
Dissipate completely, need to be to energy dissipating area two sides one near energy dissipating building exit upstream and downstream to prevent the backflow of energy dissipating area current from drawing brush
Bank slope in the range of measured length is protected, and the scope and quantities of protection are often larger, and the construction period is longer, bank slope construction
In the presence of certain difficulty.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of structural shape simply, can save protection works amount,
The construction period is saved, the water power hydraulic engineering energy dissipating area safeguard structure of " anti-to block generation ".
The technical scheme that the utility model is used is：A kind of water power hydraulic engineering energy dissipating area safeguard structure, in riverbed
Lead wall in the longitudinal direction for arranging flood-discharge energy-dissipating building by riverbank；Wall, which is led, with longitudinal direction closes the Yokogawa being connected to barricade；Yokogawa is to barricade
On elevation direction is provided with multilayer osculum；Bank slope is protected by anhydrous or inner lead level of protection in closed section.
The Yokogawa longitudinally leads wall exit to barricade positioned at energy-disspating.
The Yokogawa is higher than the corresponding downstream extreme high water of engineering standard of flood to barricade crest level.
The energy dissipating area is the narrow energy dissipating area in river valley.
The beneficial effects of the utility model are：The theory of " anti-to block generation " protection is used, is changed into from conventional passive protection
Active defense, energy dissipating area current and nearly dam bank slope are completely separated so that lower sluicing stream be unable to the nearly dam bank slope of backwashing or under
Dam heel is swum, so as to reduce the protection works amount of nearly dam bank slope, the construction period is also saved.
Brief description of the drawings
Fig. 1 is safeguard structure horizontal layout schematic diagram in energy dissipating area of the present utility model.
Fig. 2 is Yokogawa of the present utility model to barricade diagrammatic cross-section.
In figure：
1 --- lead wall in longitudinal direction；
2 --- Yokogawa is to barricade；
3 --- osculum；
4 --- bank slope in closed section.
Embodiment
The utility model is described in further detail with reference to the accompanying drawings and detailed description：
As shown in Figure 1, 2, water power hydraulic engineering energy dissipating area of the present utility model safeguard structure, is arranged in riverbed by riverbank
Lead wall 1 in the longitudinal direction of flood-discharge energy-dissipating building；Wall, which is led, with longitudinal direction closes the Yokogawa being connected to barricade 2；Yokogawa on barricade 2 along elevation
Direction is provided with multilayer osculum 3；Bank slope 4 is protected by anhydrous or inner lead level of protection in closed section.
The Yokogawa longitudinally leads the exit of wall 1 to barricade 2 positioned at energy-disspating.
The Yokogawa is higher than the corresponding downstream extreme high water of engineering standard of flood to the crest level of barricade 2.
The energy dissipating area is the narrow energy dissipating area in river valley.
The utility model uses the theory of " anti-to block generation " protection, and active defense is changed into from passive protection, in energy dissipating building
Thing is longitudinally led wall exit and is connected using Yokogawa to barricade with bank slope closing, and energy dissipating area current and nearly dam bank slope are completely separated,
Prevent lower sluicing stream is called in person from the nearly dam bank slope of backwashing or downstream dam, so that the protection works amount of nearly dam bank slope is reduced, letter
Change construction, reduced difficulty of construction, also save the construction period.Such a energy dissipating area safeguard structure, to energy dissipating area river valley more
Narrow energy dissipating area protection, saves quantities especially pronounced.
It is described in detail with reference to specific embodiment：
Certain large hydropower station engineering, dam is Compacted Concrete Gravity Dam Section, maximum height of dam 106m, the long 232m of dam crest axis.
Dam check flood standard correspondence downstream peak level is 1428.00m, and downstream peak level is full for power station unit during normal operation
Send out level of tail water 1410.30m.Using the arrangement of flood relief through dam, flood releasing structure is by 5 overflow surface bays, 1 flood scouring
Composition.Overflow surface bay is arranged in slightly biased right bank in the middle part of riverbed, using flaring gate pier plus bucket basin Energy Dissipation Modes；Flood scouring cloth
Left bank is placed in, using flip trajectory bucket mode.
Flood-discharge energy-dissipating building overflow leading edge arranges width about 100m, because downstream dissipator of energy area river valley is narrow, flood-discharge energy-dissipating
Building substantially covers the 80% of downstream river course width.Correlation test, which is studied, to be shown, stiling basin exit during each operating condition
Downstream river course current Peak Flow Rate is 8~10m/s in neighbouring certain limit, and the energy dissipating region shore slope of the scope need to be protected.
According to above-mentioned plan boundary condition, such as routinely energy dissipating area shore protection theory is designed, then is needed in dam body downstream
Concrete revetment is set in the range of length about 180m.According to relying on, engineering energy dissipating area river valley is more narrow, runtime downstream tail water
Higher the characteristics of, conventional shore protection scheme i.e. long shore protection scheme is carried out during Shore protection design and Yokogawa is set to this i.e. practicality of barricade
New Scheme, Stability Analysis of Structures, quantities, construction investment and the Integrated comparative of construction period of two schemes, comparing conclusion is：Lean on
Nearly flood scouring, which lets out groove and longitudinally leads the side of wall 1, to set Yokogawa to left bank barricade 2, the side of wall 1 is longitudinally led close to table hole stiling basin sets right
Bank Yokogawa is to after barricade 2, and concrete revetment length can reduce 63m, 46m respectively.Because the concrete revetment scope of reduction is located at
In enclosed area, in the absence of sluice and flow back in the problem of stream draws brush bank slope, therefore the area shore protection 4 and can be protected by anhydrous or inner lead
Standard is protected, and protection is to prevent water stream draws brush shore slope regulation from being the root for the purpose of preventing the further weathering of bank slope rock mass
Bank slope rock mass is closed using net spray or plain pneumatically placed concrete according to bank slope geological conditions, construction is simplified.The utility model side
Case right bank protection works amount is substantially suitable with long shore protection scheme, and the left bank longer shore protection scheme of protection works amount is greatly reduced.Explanation
It is bigger along shore protection length in the enclosed area of river direction, more saved using the utility model scheme quantities.Further, since river valley
It is more narrow, need shorter Yokogawa to carry out closing with bank slope to the length of barricade 2 and be connected, to sum up, using the utility model side
After case, generally quantities is greatly saved；Construction time, longer shore protection scheme reduced about 2 months；Yokogawa leads wall to barricade 2 with longitudinal direction
1 it is contemplated that constructed in the lump, it is to avoid the part bank protection construction and construction of guide wall are interfered；Due in enclosed area shore protection 4 by
Concrete revetment is adjusted to in-network processing bank protection, also simplify construction, reduces difficulty of construction, accelerates construction speed.
To prevent backflow of the energy dissipating area current to shore protection in enclosed area 4 from drawing brush, the wall crest elevation of Yokogawa to barricade 2 should be higher than that
The corresponding downstream extreme high water 1428.00m of engineering check flood standard.Left side Yokogawa is let out groove to barricade 2 and bottom outlet and longitudinally led
The closing of wall 1 connects, and crest level is taken as 1428.50m, crest level director's degree 18m；Right side Yokogawa is indulged to barricade 2 and table hole stiling basin
The closing of guide wall 1 connects, it is considered to which both coordinate, and it is all mutually 1430.00m, crest level director that crest level leads wall crest elevation with table hole
Spend 29m.
Due to adding Yokogawa to being closed its upstream side bank slope after barricade 2, for by the dam slope inside enclosed area and
Bank slope rainwater, ponding etc. are discharged downstream in river course in time, to ensure the safety of barrier wall structure, rely on engineering in Yokogawa to barricade 2
On be provided with multilayer osculum along elevation direction, an array pitch is 2m × 1m, and bottom osculum elevation is with backfill body bottom elevation
1410.80m, top osculum elevation, which is located at, relies on engineering dissipation and scouring level of protection correspondence level of tail water 1423.00m attached
Closely.
Because river valley is more narrow, backfill amount is smaller, relies on engineering Yokogawa to employ large volume backfill to the bottom of barricade 2,
Downstream peak level is that power station unit completely sends out the level of tail water 1410.30m when backfill body bottom elevation is higher than normal pass, is taken as
1410.80m.When power station is normally run, the dam slope inside enclosed area and bank slope rainwater, ponding etc. can be passed through Artesian Drainage by osculum
Water is discharged downstream in river course in time；During flood discharge, downstream tailwater elevation less than Yokogawa to the wall crest elevation of barricade 2, sluicing current and its
Energy is blocked in outside enclosed area, although because low elevation portions osculum elevation less than downstream tailwater elevation has water by draining
Hole is poured in down a chimney into enclosed area, but this part amount of inlet water is seldom, and flow velocity is very low, equivalent to inner lead energy, in enclosed area
In-network processing bank protection will not constitute a threat to safely.
Rely on engineering practice have shown that, the layout pattern described in the utility model energy dissipating area river valley that is particularly suitable for use in is more narrow
Narrow energy dissipating area protection, due to using shorter Yokogawa to barricade active interception flow energy, so as to save enclosed area model
Interior shore protection protection works amount is enclosed, therefore it is especially pronounced to save quantities.
Embodiment described above is merely to illustrate technological thought of the present utility model and feature, and its object is to make ability
Technical staff in domain it will be appreciated that content of the present utility model and implement according to this, it is impossible to only limits this practicality with the present embodiment
New the scope of the claims, i.e., equal change or modification that the spirit disclosed in all the utility model is made still fall new in this practicality
In the scope of the claims of type.
Claims (4)
1. a kind of water power hydraulic engineering energy dissipating area safeguard structure, it is characterised in that built in riverbed by riverbank arrangement flood-discharge energy-dissipating
Lead wall (1) in the longitudinal direction for building thing；Wall, which is led, with longitudinal direction closes the Yokogawa being connected to barricade (2)；Yokogawa on barricade (2) along elevation direction
It is provided with multilayer osculum (3)；Bank slope (4) is protected by anhydrous or inner lead level of protection in closed section.
2. water power hydraulic engineering energy dissipating area according to claim 1 safeguard structure, it is characterised in that the Yokogawa is to barricade
(2) wall (1) exit is longitudinally led positioned at energy-disspating.
3. water power hydraulic engineering energy dissipating area according to claim 1 or 2 safeguard structure, it is characterised in that the Yokogawa to
Barricade (2) crest level is higher than the corresponding downstream extreme high water of engineering standard of flood.
4. water power hydraulic engineering energy dissipating area according to claim 1 safeguard structure, it is characterised in that the energy dissipating area is river
The narrow energy dissipating area of paddy.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720067384.8U CN206529737U (en) | 2017-01-18 | 2017-01-18 | A kind of water power hydraulic engineering energy dissipating area safeguard structure |
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| CN201720067384.8U CN206529737U (en) | 2017-01-18 | 2017-01-18 | A kind of water power hydraulic engineering energy dissipating area safeguard structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106638460A (en) * | 2017-01-18 | 2017-05-10 | 中国电建集团北京勘测设计研究院有限公司 | Protective structure for water conservancy and hydropower engineering energy-dissipation area |
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2017
- 2017-01-18 CN CN201720067384.8U patent/CN206529737U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106638460A (en) * | 2017-01-18 | 2017-05-10 | 中国电建集团北京勘测设计研究院有限公司 | Protective structure for water conservancy and hydropower engineering energy-dissipation area |
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