CN107747299A - Cushion pool draining, water filling system - Google Patents
Cushion pool draining, water filling system Download PDFInfo
- Publication number
- CN107747299A CN107747299A CN201711145981.9A CN201711145981A CN107747299A CN 107747299 A CN107747299 A CN 107747299A CN 201711145981 A CN201711145981 A CN 201711145981A CN 107747299 A CN107747299 A CN 107747299A
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- Prior art keywords
- water
- drain
- cushion pool
- draining
- pool
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B9/00—Water-power plants; Layout, construction or equipment, methods of, or apparatus for, making same
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B9/00—Water-power plants; Layout, construction or equipment, methods of, or apparatus for, making same
- E02B9/02—Water-ways
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Sewage (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
The invention discloses a kind of cushion pool draining, water filling system, belong to Hydraulic and Hydro-Power Engineering field, the cushion pool draining, water filling system, including drainage system and water filling system, the drainage system includes drain header, the water inlet end of drain header passes from the upper surface of plunge pool floor concrete layer, and the water side of drain header along collector drain and ventilation hole to the export direction of ventilation hole through arranging after plunge pool floor concrete layer；More branch drains are positioned apart from along the trend of drain header, and more branch drains are located at different elevations respectively, and control valve is respectively arranged with every branch drain.Sequentially the water body in cushion pool can be drained by the branch drain of each elevation arrangement on drain header in drainage system and corresponding control valve in the present invention；And the water body of excretion is drained into collector drain along after ventilation hole and collector drain；Finally the water body of excretion is discharged by the drainage equipment of collector drain.
Description
Technical field
The present invention relates to Hydraulic and Hydro-Power Engineering field, more particularly to a kind of cushion pool draining, water filling system.
Background technology
When high dam is using Energy Dissipation Modes such as flip trajectory bucket, down stream energy dissipatings, to ensure side slope safety behind dam foundation and dam,
Generally use sets the mode of cushion pool to solve the problems, such as dissipation and scouring.For example the invention that Authorization Notice No. is CN101126232B is special
Profit discloses this measure.During engineering operation, high-velocity flow a certain degree of can wear cushion pool structure, it is necessary to fixed
Ponding in phase pump drainage cushion pool, is overhauled to energy-disspatings such as cushion pools, it is ensured that engineering safety is run, after the completion of maintenance
Water body is full of into cushion pool again, in case there are enough water cushion energy dissipatings during flood discharge.Current engineering structure is total almost not
Corresponding draining, water-filling dedicated system are set, and the periphery laying before maintenance first on cushion pool and two dams includes pumping conduit and existed
The interior interim facility that draws water, by drawing water temporarily, the water in cushion pool is extracted into two Dao Ba downstreams by facility, then carries out cushion pool
Overhauled Deng energy-dissipating installation；The facility that will be drawn water again after the completion of maintenance is removed, then again using siphon pipe by two dam underwater beds
Water be filled with cushion pool.For ease of water-filling, some dam crest portions of engineering Hai bis- have reserved breach, during maintenance in breach
Temporary water dash gate is laid, backwater gate is removed after the completion of maintenance, the water-filling of cushion pool can be quickly completed.
Authorization Notice No. is that CN201809752U utility model patent discloses a kind of supply and drain water system of cushion pool, its
By carrying out draining, water-filling using water pump in two above and below the dam pre-buried water pipes；The system can effectively carry out cushion pool draining,
Water-filling operation, but it still has larger deficiency：1st, nearby current are disorderly, flow velocity is high, pre-buried water pipe and concrete on two dams
Contact site is easily damaged；2nd, the water body in cushion pool is generally more muddy, wait easily blocked during the sediment deposition in water body into
Water pipe, water inlet pipe is caused to lose inlet function；3rd, embedded water pump can weaken two dam overall structures, and cause two dams
Construction is more complicated, increases construction cost.
The content of the invention
Present invention solves the technical problem that it is to provide a kind of new cushion pool draining, water filling system.
The technical solution adopted for the present invention to solve the technical problems is：Cushion pool draining, water filling system, including draining system
System and water filling system, collector drain is provided with below plunge pool floor concrete layer；It is provided with being connected with collector drain
Ventilation hole, the ground of the outlet of the ventilation hole beyond cushion pool abutment wall pass, and the drainage system includes drain header, row
One end of water supervisor is water inlet end, and its other end is water side；The water inlet end of drain header is from plunge pool floor concrete layer
Upper surface passes, the water side of drain header through after plunge pool floor concrete layer along collector drain and ventilation hole to ventilation
The export direction arrangement in hole；More branch drains, and more branch drains point have been positioned apart from along the trend of drain header
Not Wei Yu different elevations, be respectively arranged with control valve on every branch drain.
It is further：When the elevation at drain header upper water-out end is not higher than the design peak level of water body inside cushion pool
During H, control valve is provided with drain header.
It is further：The water inlet end of drain header is provided with curved after being passed from the upper surface of plunge pool floor concrete layer
Pipeline section, make the oral area of water inlet end downward after the bend loss bending.
It is further：On drain header between the upper surface of the oral area of water inlet end and plunge pool floor concrete layer between
It is 10cm~20cm away from L.
It is further：The trend of ventilation hole interior edge ventilation hole is provided with gutter, from the water side of drain header or
The water of any branch drain discharge of person is directly discharged into gutter.
It is further：The drainage system also includes external draining pump and cushion pool sump, and the cushion pool catchments
Well connects with collector drain, and the external draining pump communicates with cushion pool sump and can be by the water pump in cushion pool sump extremely
Discharged beyond cushion pool.
It is further：Wherein there is the elevation of a branch drain not higher than where plunge pool floor concrete layer upper surface
Elevation.
It is further：Also include water filling system, the water filling system includes charging pipe, and one end of charging pipe is water inlet
End, its other end is water side；The water inlet end of charging pipe communicates after passing through concrete dash dam with upstream storehouse water water body, water-filling
The elevation at water inlet tube end is less than the level of dead water of upstream storehouse water water body；The water inlet end of charging pipe is passed through after concrete dash dam along mixed
Coagulate native dash dam wall be arranged and pass through being arranged at the access bridge on rear side of concrete dash dam downwards, on charging pipe with friendship
Opening position corresponding to logical bridge is provided with control valve.
It is further：The elevation at charging pipe upper water-out end is less than the cope level of cushion pool abutment wall.
It is further：Spacing between the elevation of charging pipe water inlet end and the level of dead water h of upstream storehouse water water body for 3~
5m。
The beneficial effects of the invention are as follows：Pass through the draining branch of each elevation arrangement on drain header in drainage system in the present invention
Pipe and corresponding control valve can be drained sequentially to the water body in cushion pool；And by the water body of excretion along ventilation hole and
It is drained into after collector drain in collector drain；Finally the water body of excretion is discharged by the drainage equipment of collector drain.The present invention
The multiple branch drains set along drain header, corresponding control valve is sequentially opened by the order of elevation from high in the end, profit
Gradually the water body in cushion pool is drained into collector drain with Action of Gravity Field；So when water body water level is higher in cushion pool,
Can avoid directly open extreme lower position control valve caused by following problem：First, head is too high, control valve open compared with
Difficulty, require control valve too high and investment is larger；Second, the high-velocity flow of drain header discharge has to cushion pool structure
Erosion damage, influence cushion pool structure safety.Therefore can effectively be dropped after using drain header arrangement of the present invention
The flow rate of water flow accordingly exported on low drain header, reduce draining when for cushion pool polycrystalline substance erosion damage；And compared with
Low draining head is also beneficial to use relatively simple control valve；Meanwhile by the way of water body conducts oneself with dignity draining, save energy
Consumption, it is green.In addition, the water filling system in the present invention passes through the directly pre-buried water-filling in relevant position on concrete dash dam
Guan Bingyu upstreams storehouse aqueous phase is led to, and only needing during water-filling to open corresponding control valve i.e. will using the deadweight of upstream storehouse water water body
Upstream Ku Shui, which is led to, realizes water-filling in cushion pool.
Brief description of the drawings
Fig. 1 is the schematic diagram of drainage system part in cushion pool draining of the present invention, water filling system；
Fig. 2 is the cross section view of A-A turnovers hatching line in Fig. 1；
Fig. 3 is the enlarged diagram of regional area A in Fig. 1；
Fig. 4 is the enlarged diagram of regional area B in Fig. 2；
Fig. 5 is the schematic diagram of water filling system part in cushion pool draining of the present invention, water filling system；
Fig. 6 is the enlarged diagram of regional area C in Fig. 5；
In figure mark for：Plunge pool floor concrete layer 1, collector drain 2, ventilation hole 3, cushion pool abutment wall 4, drain header
5th, branch drain 6, control valve 7, water body 8, bend loss 51, gutter 31, cushion pool sump 9, charging pipe 10, concrete gear
Water dam 11, access bridge 12.
Embodiment
The present invention is further described with reference to the accompanying drawings and detailed description.
As shown in Fig. 1 to Fig. 6, cushion pool draining of the present invention, water filling system, including drainage system and water-filling system
System；Wherein drainage system be for by cushion pool water discharge, and water filling system then be used for into cushion pool water-filling.Separately
Outside, it is also necessary to collector drain 2 is provided with below plunge pool floor concrete layer 1；And set what is be connected with collector drain 2
Ventilation hole 3, the ground of the outlet of the ventilation hole 3 beyond cushion pool abutment wall 4 pass.Wherein, collector drain 2 is usually to set
It is used for the passage for discharging seepage in underground below plunge pool floor concrete layer 1；It passes through under plunge pool floor concrete layer 1
Side sets crisscross collector drain 2 to be used to collect seepage in underground, and the water of collection is focused on into corresponding cushion pool and catchmented
In well 9, and finally discharged using externally drained equipment；And the effect of ventilation hole 3 is the ventilation of water supply and sewage gallery 2.
The present invention sets drainage system using corresponding collector drain 2 and ventilation hole 3, is specially：Drainage system includes row
Water supervisor 5, one end of drain header 5 is water inlet end, and its other end is water side；The water inlet end of drain header 5 is from cushion pool bottom
The upper surface of board concrete layer 1 passes, the water side of drain header 5 through after plunge pool floor concrete layer 1 along draining corridor
Road 2 and ventilation hole 3 are arranged to the export direction of ventilation hole 3；More branch drains have been positioned apart from along the trend of drain header 5
6, and more branch drains 6 are located at different elevations respectively, and control valve 7 is respectively arranged with every branch drain 6.
Water body in cushion pool can be drained into lower section by drainage system by above-mentioned arrangement using drain header 5
In collector drain 2, then flow into cushion pool sump 9 along ventilation hole 3 and collector drain 2 and extracted out by corresponding drainage equipment.
Therefore the drainage system in the present invention takes full advantage of existing cushion pool equipment and its structure, can simplify construction investment, simultaneously
Also the draining being more convenient for cushion pool.Certainly, in theory, may also set up similar with collector drain 2 and ventilation hole 3 special
Passage is used to arrange drain header 5, and meets in the present invention to the arrangement requirement of drain header 5.
Furthermore, it is contemplated that in some high dams use cushion pool structure, the water depth in its cushion pool is higher, generally may be used
More than 30m.In these cases, if directly by be arranged on just through plunge pool floor concrete layer 1 drain header 5 water outlet
End carry out draining, then because draining head pressure is too big, easily to corresponding concrete structure in collector drain 2 or other set
It is standby to cause erosion damage, it is unfavorable for the safety of cushion pool structure；And acted on for the pressure of high water head, it can also increase to corresponding
The keying control difficulty and control valve 7 equipment requirement of itself of control valve 7.For this using in ventilation hole 3 in present invention
Situation about being gradually ramped up to its export direction, the water side of drain header 5 is arranged along collector drain 2 and ventilation hole 3, and
And arranged to the export direction of ventilation hole 3, the purpose is to elevation where the water side of drain header 5 is arranged on into high bit as far as possible
Put；Water exit position of the more branch drains 6 as different elevations is set in the different elevation locations of drain header 5 simultaneously, passed through
Erosion damage effect when corresponding branch drain 6 carries out draining to reduce draining head and draining is opened successively.
For example, when needing to discharge the water body 8 in cushion pool, it can be opened first by corresponding control valve and be located at draining
On supervisor 5 closest to and less than in cushion pool the now liquid level elevation of water body 8 branch drain 6, arranged by the branch drain 6
Water；Because now gap is smaller between elevation where the water side of the liquid level elevation of water body 8 and the branch drain 6 in cushion pool,
Therefore it is relatively low from the head pressure of the draining of branch drain 6, the effect of its erosion damage can be reduced.When above-mentioned branch drain 6 is by water
Where the real-time liquid level elevation of water body 8 drains into the water side close to the branch drain 6 in the pad pool during elevation, be then turned on it is adjacent under
One branch drain 6 continues draining；So operation, until will be opened positioned at the branch drain 6 of extreme lower position and by water cushion
Untill water body discharge in the pool.
Certainly, the water discharged by above-mentioned each branch drain 6 will flow into cushion pool collection along ventilation hole 3 and collector drain 2
Well 9 is simultaneously extracted out by corresponding drainage equipment；Such as by the external draining pump of setting by the water pump in cushion pool sump 9 extremely
Discharged beyond cushion pool.
In addition, in order to ensure that can discharge all water bodys in cushion pool as far as possible positioned at the branch drain 6 of extreme lower position,
The elevation of wherein one branch drain 6 should be set not higher than elevation where the upper surface of plunge pool floor concrete layer 1；Generally will
The branch drain 6 is arranged on its lowest position of drain header 5.
In addition, the drain header 5 in the present invention, carries out draining, therefore draining master due to being provided with branch drain 6 in theory
The water side of pipe 5 can not have to draining；But in order to avoid inside cushion pool in its natural state water body 8 from drain header 5
Water side water outlet, when the elevation at the upper water-out end of drain header 5 is not higher than the design peak level H of water body 8 inside cushion pool,
Control valve 7 is may be provided with drain header 5；Drain header 5 so can be closed by control valve 7；It can specifically arrange
Corresponding control valve 7 is provided with the water side of water supervisor 5 or can be also provided with accordingly in the other positions on drainpipe 5
Control valve 7.In addition, when the elevation at the upper water-out end of drain header 5 is higher than the design peak level H of water body 8 inside cushion pool
When, it can not have to set corresponding control valve 7 on drain header 5；The water side of drain header 5 is higher than cushion pool when therefore
Liquid level corresponding to interior water body 8, therefore will not be from the water side draining.
In addition, referring to the drawings shown in 4, further the water inlet end of drain header 5 is mixed from plunge pool floor in the present invention
The upper surface of solidifying soil layer 1 is provided with bend loss 51 after passing, the bend loss 51 makes the oral area of water inlet end downward after bending.
The benefit so set be due to by the oral area of the water inlet end of drain header 5 downward, therefore deposit (such as mud in water body
Deng) oral area of drain header 5 will not be deposited directly to, it can avoid causing the blocking to drain header 5, it is ensured that it intakes logical
Freely.More specifically, in the case where being provided with bend loss 51, and in order to drain the water body 8 in cushion pool, while and can as far as possible
Avoid deposit from blocking the oral area of drainpipe 5, the oral area of water inlet end and cushion pool bottom on drain header 5 are preferably provided with the present invention
Spacing L between the upper surface of board concrete layer 1 is 10cm~20cm；It is 10cm such as to set L.
Furthermore, it is contemplated that ventilation hole 3 is also commonly used for supplying walk, therefore in order to avoid passing through each branch drain 6
It also is available for passing through during draining, further the trend of the interior edge ventilation hole 3 of ventilation hole 3 can be provided with gutter 31, and
The water discharged from the water side of drain header 5 or any branch drain 6 is directly discharged into gutter 31.Certainly, accordingly
The passage for walk is may be provided with positioned at the side in gutter 31 in ventilation hole 3, such as corresponding stair-step etc. is set.
Without loss of generality, may also set up in corresponding collector drain 2 special for the draining for the current discharged from drain header 5
Ditch；And the water of discharge is drained in cushion pool sump 9 by the gutter, it specifically can refer to the arrow shown in accompanying drawing 1
Direction.
In addition, heretofore described cushion pool draining, water filling system, in addition to water filling system, the water filling system bag
Charging pipe 10 is included, one end of charging pipe 10 is water inlet end, and its other end is water side；The water inlet end of charging pipe 10 passes through concrete
Communicated after dash dam 11 with upstream storehouse water water body 8, the elevation of the water inlet end of charging pipe 10 is less than the stagnant water of upstream storehouse water water body 8
Position；The water inlet end of charging pipe 10 is arranged and pass through downwards after passing through concrete dash dam 11 along the wall of concrete dash dam 11
The access bridge 12 of the rear side of concrete dash dam 11 is arranged at, is provided with charging pipe 10 with 12 corresponding opening position of access bridge
Control valve 7.Specifically, charging pipe 10 can be embedded in inside it building concrete dash dam 11.Can by charging pipe 10
Very easily water-filling is carried out into cushion pool, it is necessary to only need during water-filling station on corresponding access bridge 12 by corresponding control
Valve 7 is opened i.e. using the upstream storehouse water water body Action of Gravity Field of itself downstream cushion pool progress water-filling.
More specifically, the top that the elevation at the upper water-out end of charging pipe 10 is preferably arranged to slightly below cushion pool abutment wall 4 is high
Journey；As shown in Figure 5.In addition, in order to ensure can effectively carry out water-filling, generally the elevation of the water inlet end of charging pipe 10 is set
Set low in the level of dead water h of upstream storehouse water water body 8；And the elevation and upstream storehouse water water body of the generally settable water inlet end of charging pipe 10
Spacing between 8 level of dead water h is 3~5m.
Claims (10)
1. cushion pool draining, water filling system, including drainage system and water filling system, below plunge pool floor concrete layer (1)
It is provided with collector drain (2)；Be provided with ventilation hole (3) with being connected with collector drain (2), the outlet of the ventilation hole (3) from
Ground beyond cushion pool abutment wall (4) passes, it is characterised in that：The drainage system includes drain header (5), drain header
(5) one end is water inlet end, and its other end is water side；The water inlet end of drain header (5) is from plunge pool floor concrete layer (1)
Upper surface pass, the water side of drain header (5) through after plunge pool floor concrete layer (1) along collector drain (2) and
Ventilation hole (3) is arranged to the export direction of ventilation hole (3)；More draining branch have been positioned apart from along the trend of drain header (5)
Manage (6), and more branch drains (6) are located at different elevations respectively, and control valve is respectively arranged with every branch drain (6)
Door (7).
2. cushion pool draining as claimed in claim 1, water filling system, it is characterised in that：When drain header (5) upper water-out end
When elevation is not higher than the design peak level H of water body (8) inside cushion pool, control valve is provided with drain header (5)
(7)。
3. cushion pool draining as claimed in claim 1, water filling system, it is characterised in that：The water inlet end of drain header (5) is from water
The upper surface of pad pool underplate concrete layer (1) is provided with bend loss (51) after passing, make after bend loss (51) bending into water
The oral area at end is downward.
4. cushion pool draining as claimed in claim 3, water filling system, it is characterised in that：The mouth of water inlet end on drain header (5)
Spacing L between portion and the upper surface of plunge pool floor concrete layer (1) is 10cm~20cm.
5. cushion pool draining as claimed in claim 1, water filling system, it is characterised in that：In ventilation hole (3) interior edge ventilation hole
(3) trend is provided with gutter (31), and the water discharged from the water side of drain header (5) or any branch drain (6) is straight
Run in into gutter (31).
6. cushion pool draining as claimed in claim 1, water filling system, it is characterised in that：The drainage system also includes external
Draining pump and cushion pool sump (9), the cushion pool sump (9) connect with collector drain (2), the external draining pump with
Cushion pool sump (9) is communicated and will can discharged beyond the water pump in cushion pool sump (9) to cushion pool.
7. cushion pool draining as claimed in claim 1, water filling system, it is characterised in that：Wherein there is branch drain (6)
Elevation is not higher than elevation where plunge pool floor concrete layer (1) upper surface.
8. cushion pool draining as claimed in any of claims 1 to 7 in one of claims, water filling system, it is characterised in that：Also include water-filling
System, the water filling system include charging pipe (10), and one end of charging pipe (10) is water inlet end, and its other end is water side；Fill
The water inlet end of water pipe (10) communicates with upstream storehouse water water body (8) afterwards through concrete dash dam (11), charging pipe (10) water inlet
The elevation at end is less than the level of dead water of upstream storehouse water water body (8)；The water inlet end of charging pipe (10) passes through concrete dash dam (11)
It is arranged and pass through being arranged at the access bridge on rear side of concrete dash dam (11) downwards along concrete dash dam (11) wall afterwards
(12), opening position corresponding with access bridge (12) is provided with control valve (7) on charging pipe (10).
9. cushion pool draining as claimed in claim 8, water filling system, it is characterised in that：The height at charging pipe (10) upper water-out end
Journey is less than the cope level of cushion pool abutment wall (4).
10. cushion pool draining as claimed in claim 8, water filling system, it is characterised in that：The elevation of charging pipe (10) water inlet end
Spacing between the level of dead water h of upstream storehouse water water body (8) is 3~5m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711145981.9A CN107747299B (en) | 2017-11-17 | 2017-11-17 | Water draining and filling system for plunge pool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711145981.9A CN107747299B (en) | 2017-11-17 | 2017-11-17 | Water draining and filling system for plunge pool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107747299A true CN107747299A (en) | 2018-03-02 |
| CN107747299B CN107747299B (en) | 2023-04-28 |
Family
ID=61252062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711145981.9A Active CN107747299B (en) | 2017-11-17 | 2017-11-17 | Water draining and filling system for plunge pool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107747299B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1113464A1 (en) * | 1982-12-27 | 1984-09-15 | Всесоюзный Ордена Трудового Красного Знамени Научно-Исследовательский Институт Гидротехники Им.Б.Е.Веденеева | Concrete dam drainage system |
| JP4678893B1 (en) * | 2010-08-26 | 2011-04-27 | 秀樹 中込 | Intake mechanism of Sabo Dam |
| CN206143723U (en) * | 2016-10-20 | 2017-05-03 | 长江勘测规划设计研究有限责任公司 | Canal lining restores bypass pipe water delivery and formula foundation ditch is cuted in cofferdam |
| CN207419414U (en) * | 2017-11-17 | 2018-05-29 | 中国电建集团成都勘测设计研究院有限公司 | Cushion pool draining, water filling system |
-
2017
- 2017-11-17 CN CN201711145981.9A patent/CN107747299B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1113464A1 (en) * | 1982-12-27 | 1984-09-15 | Всесоюзный Ордена Трудового Красного Знамени Научно-Исследовательский Институт Гидротехники Им.Б.Е.Веденеева | Concrete dam drainage system |
| JP4678893B1 (en) * | 2010-08-26 | 2011-04-27 | 秀樹 中込 | Intake mechanism of Sabo Dam |
| CN206143723U (en) * | 2016-10-20 | 2017-05-03 | 长江勘测规划设计研究有限责任公司 | Canal lining restores bypass pipe water delivery and formula foundation ditch is cuted in cofferdam |
| CN207419414U (en) * | 2017-11-17 | 2018-05-29 | 中国电建集团成都勘测设计研究院有限公司 | Cushion pool draining, water filling system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107747299B (en) | 2023-04-28 |
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