CN208717869U - The diversion canal to sluice for big gradient, high flow rate - Google Patents
The diversion canal to sluice for big gradient, high flow rate Download PDFInfo
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- CN208717869U CN208717869U CN201821355219.3U CN201821355219U CN208717869U CN 208717869 U CN208717869 U CN 208717869U CN 201821355219 U CN201821355219 U CN 201821355219U CN 208717869 U CN208717869 U CN 208717869U
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- diversion canal
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Abstract
The utility model discloses a kind of diversion canals, especially disclose a kind of diversion canal to sluice for big gradient, high flow rate, belong to hydraulic and hydroelectric engineering Building Design building technology field.A kind of can effectively eliminate is provided to let out energy under the lower stream that sluices of high speed and protect the diversion canal of downstream side slope to sluice for big gradient, high flow rate.The diversion canal includes diversion canal ontology, the diversion canal ontology is arranged in the riverbed between upstream cofferdam and downstream cofferdam along water (flow) direction, the diversion canal further includes that slope protection disappears Force system, and the slope protection disappears Force system along the diversion canal ontology that water (flow) direction is arranged in middle and lower reaches side；The lower stream that sluices is disappeared the side slope of Force system energy dissipating and diversion downstream side exit by the slope protection derived from the diversion canal ontology.
Description
Technical field
The utility model relates to a kind of diversion canals, more particularly, to a kind of water conservancy diversion to sluice for big gradient, high flow rate
Open channel belongs to hydraulic and hydroelectric engineering Building Design building technology field.
Background technique
In hydraulic and hydroelectric engineering, diversion canal belongs to provisional discharge structure, by let out under diversion canal upstream come
Water creates conditions for foundation pit dry work.To reduce cost, usually diversion canal is passed through in conjunction with permanent building part
Later period reconstruction, becomes a part of permanent building.Diversion canal is usually used in that riverbed side has compared with wide-bed-type press brake or bank is more opened
Wealthy gentle orographic condition, the diversion canal arranged accordingly are not limited generally by landform, and open channel bottom width is wider, flow section compared with
Greatly, the flow velocity of outlet stream is lower, and conventional safety processing only need to be done to downstream bank slope, disappears without considering that setting is special
It can be with erosion control facility.But with the development of hydraulic and hydroelectric engineering, it is increasing that more and more engineerings are built in the slope of river
It in mountain stream, and is limited by hydrology topographic and geologic condition, can not can only usually be used using diversion modes such as tunnel, culverts
Diversion canal overcurrent.At the same time, it is influenced by engineering topographic and geologic condition, the diversion canal arranged in mountain channel is not yet
May be dispersed using very big flow section open channel outlet flow energy, and due to the general channel gradient in mountain channel compared with
Suddenly, cause the diversion canal gradient larger, open channel outlet stream flow velocity also accordingly becomes larger, if routinely considering and designing, is not having
In the case where dissipation and scouring measure, then downstream river course and bank slope can be caused it is serious wash away, jeopardize the stabilization of downstream bank slope.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of can effectively eliminate to let out under the lower stream that sluices of high speed
Energy and the diversion canal to sluice for big gradient, high flow rate for protecting downstream side slope.
Used technical solution is to solve above-mentioned technical problem: a kind of water conservancy diversion to sluice for big gradient, high flow rate
Open channel, including diversion canal ontology, the diversion canal ontology along water (flow) direction be arranged in upstream cofferdam and downstream cofferdam it
Between riverbed in, the diversion canal further includes that slope protection disappears Force system, and the slope protection Force system that disappears is arranged along water (flow) direction
In the diversion canal ontology of middle and lower reaches side；The lower stream that sluices passes through the slope protection derived from the diversion canal ontology
Disappear the side slope of Force system energy dissipating and diversion downstream side exit.
Further, the slope protection disappears Force system include along water (flow) direction setting stilling pond and setting this be to disappear
The slope protection of power pond downstream is oriented to end sill, and the energy of the lower stream that sluices is eliminated by the stilling pond, releases the diversion canal
The lower sluicing stream of ontology is oriented to the side slope in end sill diversion downstream side exit by the slope protection.
The preferred mode of the above solution is that the slope protection guiding end sill is to be arranged in stilling pond downstream side exit
The power guiding bank that disappears, the power of disappearing guiding bank close to riverbed side elevation lower than it close to the elevation of side slope side.
Further, the power of the disappearing guiding bank is higher than the diversion canal of stilling pond upstream side close to the elevation of riverbed side
The elevation of ontology bottom plate.
The preferred mode of the above solution is that also being set between the upstream side of the power of the disappearing guiding bank and the bottom plate of the stilling pond
It is equipped with buffer-oriented slope.
Further, being additionally provided with baffle pier in the stilling pond, the upstream side of the stilling pond is led with described
Buffer-oriented slope is provided between the bottom plate of lumen canal ontology.
The preferred mode of the above solution is that the diversion canal ontology further includes left guide wall and wall, the left side are led in the right side
Leading wall is along the armored concrete abutment wall for erectting direction extension, and it is the concrete shield extended along side slope surface that wall is led on the right side
Slope.
Further, the baffle pier includes multiple toe piers, each toe pier is arranged in the power that disappears in blossom type
On the bottom plate in pond, the power slope that disappears upstream extended is provided in the upstream side of each toe pier.
The beneficial effects of the utility model are: the application is disappeared Force system by the way that a set of slope protection is arranged, and by the slope protection
Force system disappear along the diversion canal ontology that water (flow) direction is arranged in middle and lower reaches side, then makes from the diversion canal ontology
The derived lower stream that sluices is disappeared the side slope of Force system energy dissipating and diversion downstream side exit by the slope protection.In this way, passing through this
The slope protection of the application setting Force system that disappears both had eliminated most of energy that lower sluicing stream contains at high speed, while being equipped with led again
Structure design from downstream side exit side slope not only eliminates most of energy that water flow contains, and since lower sluicing is flowed
Far from side slope, to realize dual protection to the side slope at lower sluicing outflux, and then reaches and protect side to greatest extent
Slope purpose without damage.
Detailed description of the invention
Fig. 1 is the floor plan for the diversion canal that the utility model sluices for big gradient, high flow rate；
Fig. 2 is the A-A cross-sectional view of Fig. 1；
Fig. 3 is the B-B cross-sectional view of Fig. 1.
In the figure, it is marked as diversion canal ontology 1, downstream cofferdam 2, riverbed 3, slope protection disappear Force system 4, side slope 5, stilling pond 6,
Slope protection guiding end sill 7, diversion canal ontology bottom plate 9, bottom plate 10, baffle pier 11, left guide wall 12, the right side lead that wall 13, toe pier 14, disappear power
Slope 15.
Specific embodiment
It is that provided by the utility model a kind of can effectively eliminate the lower stream that sluices of high speed as shown in Figure 1, Figure 2 and shown in Fig. 3
Under let out energy and protect downstream side slope for big gradient, high flow rate sluice diversion canal.The diversion canal includes leading
Lumen canal ontology 1, the diversion canal ontology 1 are arranged in the riverbed 3 between upstream cofferdam and downstream cofferdam 2 along water (flow) direction
Interior, the diversion canal further includes that slope protection disappears Force system 4, the slope protection disappear Force system 4 along water (flow) direction be arranged under
In the diversion canal ontology 1 for swimming side；The lower stream that sluices derived from the diversion canal ontology 1 is disappeared power by the slope protection
The side slope 5 of 4 energy dissipating of system and diversion downstream side exit.The application is disappeared Force system 4 by the way that a set of slope protection is arranged, and will be described
Slope protection disappears Force system 4 along the diversion canal ontology 4 that water (flow) direction is arranged in middle and lower reaches side, then makes bright from the water conservancy diversion
The lower stream that sluices derived from canal ontology 1 is disappeared the side slope 5 of 4 energy dissipating of Force system and diversion downstream side exit by the slope protection.This
Sample had both eliminated most of energy that lower sluicing stream contains at high speed by the slope protection that the application the is arranged Force system 4 that disappears, while again
It is equipped with and designs the structure of its diversion downstream side exit side slope 5, not only eliminate most of energy that water flow contains, Er Qieyou
In lower sluicing stream far from side slope 5, to realize dual protection to the side slope 5 at lower sluicing outflux, and then reach most
The purpose that limits protect side slope without damage.
In above embodiment, disappear the structure of Force system 4 to simplify the slope protection, while it is most of to be able to achieve elimination again
The energy that lower sluicing stream contains, and by the purpose of side slope 5 at lower sluicing conductance stream lower exit, the application is by the slope protection
The Force system 4 that disappears be set as include along water (flow) direction setting stilling pond 6 and be arranged in this be 6 downstream of stilling pond slope protection guiding
Then it is bright to release the water conservancy diversion in this way, the lower energy for sluicing stream can be eliminated by the stilling pond 6 for the structure of end sill 7
The lower sluicing stream of canal ontology 1 can be oriented to the side slope 5 in 7 diversion downstream side exit of end sill by the slope protection.At this point, energy
5 structure of side slope by lower sluicing conductance from downstream side exit has very much, for example setting one is made near side (ns) with tendency guide way
The barricade of slope side, by the barricade by lower sluicing conductance from side slope, but the impact force that this structure is received is larger, so building
Make the higher cost of barricade.For this purpose, the structure that the application provides slope protection guiding end sill 7 is to be arranged in 6 downstream side of stilling pond
The power guiding bank that disappears in exit, and the power guiding bank that disappears is made to be lower than it close to 5 side of side slope close to the elevation of 3 side of riverbed
Elevation.In this way, since the power guiding bank that disappears is the structure gradually risen along its length to side slope side, thus not only adapt to
Diversion requirement under different letdown flows, and with the increase for the power guiding bank elevation that disappears, guiding energy can also increase accordingly
Add, to realize that lower sluice is flowed the purpose of quick diversion side slope by it.
At the same time, in order to preferably realize the purpose of energy dissipating, the herein described power of disappearing guiding bank is close to 3 side of riverbed
Elevation is higher than the elevation of the diversion canal ontology bottom plate 9 of 6 upstream side of stilling pond；The upstream side of the power of the disappearing guiding bank disappears with described
Buffer-oriented slope 10 is additionally provided between the bottom plate 10 in power pond 6；And it is additionally provided with baffle pier 11 in the stilling pond 6,
Buffer-oriented slope 10 is provided between the upstream side 6 of the stilling pond and the bottom plate of the diversion canal ontology.And it is described
Baffle pier 11 is the multiple toe piers 14 being arranged on force reduction pool bottom in plum-type structure, is set in the upstream side of each toe pier 14
It is equipped with the power slope 15 that disappears upstream extended.The lower sluicing stream of high speed can be slowed down by the buffer-oriented slope 10 and offset power bottom of pond
The impact of plate can be formed in stilling pond by baffle pier 11 and roll water flow to achieve the purpose that energy dissipating.
Further, it in order to simplify the structure of herein described diversion canal ontology, is allowed to infrastructure device as far as possible
In conjunction with the purpose multi-purpose up to one, diversion canal ontology 1 described herein further includes left guide wall 12 and wall 13 is led on the right side, described
Left guide wall 12 be along erect direction extend armored concrete abutment wall, the right side lead wall 13 be along side slope surface extends mix
Solidifying soil slope protection.
In conclusion had further the advantage that using diversion canal provided by the present application,
Diversion canal engineering originally usually only does general protection to lower reache because the flow velocity of its outlet stream is not high,
With the development of engineering, the flow rate of water flow of diversion canal outlet is increasing, and general channel protection engineering has obviously been unsatisfactory for
The needs of engineering.By this method provided by the present application, only one stilling pond need to be set at diversion canal outlet upstream position,
And stilling pond end sill pattern is adjusted to oblique end sill by traditional form, so that it may which high-velocity flow flow velocity in open channel is being left into outlet
It is preceding utmostly to be cut down, so that outlet stream is utmostly returned slot, mitigates open channel outlet stream to downstream river course and bank slope
It washes away, greatly reduces the protection works amount of downstream shore protection, save the cost.
Embodiment one
As shown in Figure 1, 2, 3, one stilling pond is set in diversion canal outlet upstream position, it is bright that stilling pond is arranged in water conservancy diversion
In canal, flow section is not accounted for；One oblique end sill, that is, above-mentioned slope protection is set in stilling pond exit and is oriented to end sill, the cloth of oblique end sill
It sets and is biased to riverbed in the plane, be lower than close to riverbed side close to bank slope side on elevation, in this way, when high-velocity flow enters stilling pond
Afterwards, high-velocity flow rotary roll energy dissipating in stilling pond, reduces stilling pond outlet stream flow velocity, and downstream river course is washed away in reduction；With
Afterwards under the guiding role of oblique end sill, the water flow mainstream come out from stilling pond is biased to main stem, without directly impacting bank slope, significantly
Downstream bank slope is washed away in reduction.Under the two effect, the high-velocity flow flow velocity come out from stilling pond is greatly reduced, and mainstream is biased to master
Riverbed can reduce and wash away to downstream river course and bank slope, achieve the effect that good reduce investment outlay.
Claims (8)
1. a kind of diversion canal to sluice for big gradient, high flow rate, including diversion canal ontology (1), the diversion canal
Ontology (1) is arranged in along water (flow) direction in the riverbed (3) between upstream cofferdam and downstream cofferdam (2) Nei, it is characterised in that: described
Diversion canal further includes that slope protection disappears Force system (4), and the slope protection Force system (4) that disappears along water (flow) direction is arranged in middle and lower reaches side
In the diversion canal ontology (1)；The lower stream that sluices derived from the diversion canal ontology (1) is disappeared power system by the slope protection
The side slope (5) of system (4) energy dissipating and diversion downstream side exit.
2. the diversion canal according to claim 1 to sluice for big gradient, high flow rate, it is characterised in that: the shield
Slope disappear Force system (4) include along water (flow) direction setting stilling pond (6) and be arranged this be that the slope protection of stilling pond (6) downstream is led
To end sill (7), the energy of the lower stream that sluices is eliminated by the stilling pond (6), is released and is let out under the diversion canal ontology (1)
Water flow is oriented to the side slope (5) in end sill (7) diversion downstream side exit by the slope protection.
3. the diversion canal according to claim 2 to sluice for big gradient, high flow rate, it is characterised in that: the shield
Slope guiding end sill (7) is disappear power guiding bank of the setting in the stilling pond (6) downstream side exit, and the power of the disappearing guiding bank is close
The elevation of riverbed (3) side is lower than it close to the elevation of side slope (5) side.
4. the diversion canal according to claim 3 to sluice for big gradient, high flow rate, it is characterised in that: the power of disappearing
It is oriented to the elevation that elevation of the bank close to riverbed (3) side is higher than the diversion canal ontology bottom plate (9) of stilling pond (6) upstream side.
5. the diversion canal according to claim 3 to sluice for big gradient, high flow rate, it is characterised in that: the power of disappearing
It is oriented between the upstream side of bank and the bottom plate (10) of the stilling pond (6) and is additionally provided with buffer-oriented slope (8).
6. the diversion canal to sluice according to claim 2,3,4 or 5 for big gradient, high flow rate, it is characterised in that:
It is additionally provided with baffle pier (11) in the stilling pond (6), the bottom of the upstream side of the stilling pond and the diversion canal ontology
Buffer-oriented slope (8) are provided between plate.
7. the diversion canal according to claim 6 to sluice for big gradient, high flow rate, it is characterised in that: described leads
Lumen canal ontology (1) further includes that left guide wall (12) and the right side are led wall (13), and the left guide wall (12) is to extend along setting direction
Armored concrete abutment wall, it is the concrete revetment extended along side slope surface that wall (13) are led on the right side.
8. the diversion canal according to claim 6 to sluice for big gradient, high flow rate, it is characterised in that: described disappears
Power pier (11) includes multiple toe piers (14), and each toe pier (14) is arranged on the bottom plate of stilling pond in blossom type, each
The upstream side of a toe pier (14) be provided with upstream extend disappear power slope (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821355219.3U CN208717869U (en) | 2018-08-22 | 2018-08-22 | The diversion canal to sluice for big gradient, high flow rate |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821355219.3U CN208717869U (en) | 2018-08-22 | 2018-08-22 | The diversion canal to sluice for big gradient, high flow rate |
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| CN208717869U true CN208717869U (en) | 2019-04-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112144468A (en) * | 2020-09-19 | 2020-12-29 | 陈建斌 | Riverbed flow guide structure for hydraulic engineering construction |
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2018
- 2018-08-22 CN CN201821355219.3U patent/CN208717869U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112144468A (en) * | 2020-09-19 | 2020-12-29 | 陈建斌 | Riverbed flow guide structure for hydraulic engineering construction |
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