CN110409385A - The new structure of settling pit built in a kind of overflow dam - Google Patents
The new structure of settling pit built in a kind of overflow dam Download PDFInfo
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- CN110409385A CN110409385A CN201910766379.XA CN201910766379A CN110409385A CN 110409385 A CN110409385 A CN 110409385A CN 201910766379 A CN201910766379 A CN 201910766379A CN 110409385 A CN110409385 A CN 110409385A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 52
- 238000010248 power generation Methods 0.000 claims abstract description 28
- 238000011010 flushing procedure Methods 0.000 claims abstract description 25
- 230000007704 transition Effects 0.000 claims abstract description 22
- 239000004576 sand Substances 0.000 claims abstract description 13
- 239000013049 sediment Substances 0.000 claims abstract description 7
- 230000005611 electricity Effects 0.000 claims abstract description 5
- 238000007599 discharging Methods 0.000 claims abstract description 4
- 238000012423 maintenance Methods 0.000 claims description 16
- 238000011144 upstream manufacturing Methods 0.000 claims description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- 238000007689 inspection Methods 0.000 claims description 10
- 238000009835 boiling Methods 0.000 claims description 8
- 239000008187 granular material Substances 0.000 claims description 5
- 238000009423 ventilation Methods 0.000 claims description 4
- 230000000241 respiratory effect Effects 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims description 2
- 239000002244 precipitate Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 6
- 238000010276 construction Methods 0.000 abstract description 5
- 230000001376 precipitating effect Effects 0.000 abstract description 3
- 230000008520 organization Effects 0.000 abstract 1
- 230000008901 benefit Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000006872 improvement Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000000717 retained effect Effects 0.000 description 2
- 230000005465 channeling Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- 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
- E02B8/02—Sediment base gates; Sand sluices; Structures for retaining arresting waterborne material
-
- 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
- E02B8/02—Sediment base gates; Sand sluices; Structures for retaining arresting waterborne material
- E02B8/023—Arresting devices for waterborne materials
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Barrages (AREA)
Abstract
The invention discloses a kind of new structures of settling pit built in overflow dam, with built-in settling pit overflow dam, including settling pit in overflow dam and dam, for flood period in rainy season release flood discharge, draw library water taken to enter by sand-trap water-take aperture in dam suspended sediment in settling pit precipitating water；The wall of leading of the overflow dam is equipped with the flushing sluice within the walls communicated with settling pit in dam, for periodically draining the silt of settling pit in dam；The other side of overflow dam is equipped with flood discharge and draws husky lock, for drawing silt and regular flood and sand discharging at row sand-trap water-take aperture based on bed load in the flood discharge of over-level flood phase；The water outlet side of settling pit, flood discharge draw the lower part of husky lock to be equipped with power generation intake transition in dam, take the clear water of settling pit in dam to enter power plant through penstock to generate electricity for drawing.The structural shape of optimum organization of the invention can both reduce project amount and its investment, can also facilitate construction, further effectively play the effect of settling pit desilting, can also increase overflow dam flood discharge flow.
Description
Technical field
The invention belongs to hydraulic and hydroelectric engineering, the technical field of water supply project, it is more particularly to sink built in a kind of overflow dam
The new structure of sand basin, especially suitable for the water channeling type power station weir built on narrow, steep, high concentration of sediment remote mountainous area river
Intake or water supply project intake.
Background technique
Hydropower station pivotal is arranged on narrow river, usually because river comes, flow is big, flood releasing structure size is big, from
And each building is caused to be arranged to height that is crowded or increasing each buildings such as barrage dam on facade on river
Degree or the size for increasing flood releasing structure flow section in the plane, this will make entire multi-purpose project amount increase, engineering
Cost is also increase accordingly.Barrage dam is built on steep remote mountain stream, since flood peak height amount is big, length is fallen suddenly suddenly,
In order to facilitate management, the structural shape of low weir overflow dam is generally taken.Power station is built on high concentration of sediment mountain stream, is generally needed
Settling pit is added in intake upstream inlet, and settling pit is usually arranged apart with barrage dam, and because flow velocity is low in pond, ruler
It is very little big, if independent ground settling pit is arranged, not only head pivot occupied area can be allowed bigger, arrangement is more difficult, and
Also will project amount further be increased, construction investment can also increase significantly, if settling pit in setting hole, because work is dug in hole
Journey amount is big, and difficulty of construction is big, and project cost is equally high.In order to effectively reduce investment outlay, it is necessary to find novel sink sand basin with it is low
The structural shape of weir overflow dam, to optimize and revise project playout；If the combination knot for taking settling pit to combine with low weir overflow dam
Configuration formula will not only have the advantages that the effective desilting of settling pit, overflow dam reservoir impoundment power generation, rainy season flood discharge are big, but also greatly
Occupied area is reduced, project amount is more saved, greatly reduces cost.
Therefore, the new structure of settling pit built in a kind of overflow dam is very necessary, will also have highly important reason
By with realistic meaning.
Summary of the invention
In view of the above shortcomings of the prior art, technical problem to be solved by the present invention lies in provide in a kind of overflow dam
Set the new structure of settling pit, size is smaller, characteristics of compact layout, structure are compared with excellent, discharge is constant, project amount is small, cost is lower.
In order to achieve the above purpose, the present invention uses following technical measures:
The new structure of settling pit built in overflow dam of the invention has built-in settling pit overflow dam, the built-in desilting
Pond overflow dam includes settling pit in overflow dam and dam, is located at riverbed center, for flood period in rainy season release flood discharge, draw and take
Library water enters settling pit in dam by the sand-trap water-take aperture on overflow dam upstream face and precipitates suspended sediment in water；The boiling water
The wall of leading of dam side is arranged in riverbank side, and the wall of leading of the overflow dam is equipped with the punching within the walls communicated with settling pit in the dam
Sha Kong, for periodically draining the silt of settling pit in dam；The other side of the overflow dam is equipped with flood discharge and draws husky lock, for exceeded
The silt at the sand-trap water-take aperture before arranging overflow dam based on bed load and regular flood and sand discharging are drawn in flood period flood discharge；It is described
The water outlet side of settling pit, flood discharge draw the lower part of husky lock to be equipped with power generation intake transition in dam, take settling pit in dam for drawing
Clear water enter power plant through penstock and generate electricity.
Wherein, overflow dam is that a kind of flood discharge overflow barrage for being adapted to be supported on the satisfactory dam foundation face of bearing capacity is low
Dam, according to field condition, flood discharge overflow weir can be designed to practical weir or broad-crested weir etc., and weir face does not set gate control, is convenient for
Operational management.Power generation intake transition is the gradual transition section for connecting the water outlet of settling pit and power generation intake in dam, library
Suspended load in water is deposited in dam in several rifflers in settling pit, and in pond the outlet of clear water settling pit end in dam
Power generation intake transition is flowed through, penstock is introduced, drives unit generation in factory.
Further, the overflow weir of the overflow dam is practical weir, be additionally provided in overflow dam positioned at overflow weir and
Gallery in dam between settling pit；The gallery respectively with first led within the walls of overflow dam side into people's vertical shaft and
The flood discharge of the overflow dam other side draws second in the gate pier of husky lock to communicate into people's vertical shaft.
Preferably, the dam body upstream face of the overflow dam is additionally provided with stoplog before the dam for blocking the sand-trap water-take aperture
Door system；Stoplog door system is mainly made of Stoplog gate, gate slot, opening and closing device before the dam.
Further, described first vertical shaft is offered into manhole into the top of people's vertical shaft into people's vertical shaft and second, it is described
First extends to the first of gallery from the vertical shaft into manhole into manhole into people's vertical shaft and second into being equipped in people's vertical shaft
Ladder is maked an inspection tour for staff, maintenance is passed through.
Further, leading for the overflow dam side is equipped with third into people's vertical shaft, institute in the top of flushing sluice within the walls within the walls
It states third to be equipped within the walls into the top of people's vertical shaft into manhole, the third extends within the walls into manhole into being equipped with from described in people's vertical shaft
To flushing sluice within the walls second into manhole ladder, settling pit in dam is entered by flushing sluice within the walls for service personnel.
Preferably, the downstream side of the overflow dam is provided with the wall communicated into people's vertical shaft and second into people's vertical shaft with described first
Interior venthole, respiratory ventilation of divulging information when being maked an inspection tour in settling pit in gallery, dam for service personnel；It is described to lead within the walls
Stomata tilts down, for preventing rainwater from pouring into；The venthole within the walls is by settling pit, sand-trap water-take hole in gallery, dam
Mouth, within the walls flushing sluice, power generation intake transition connection carry out tonifying Qi.
Specifically, it includes retaining box body, the flood discharge drawing hole Sha Zha, the husky gate of flood discharge drawing that husky lock is drawn in the flood discharge, it to be used for flood discharge
Drain the bed load accumulated before dam and coarse granule suspended load.
Further, the Stoplog gate is the plane water-retaining structure being formed by stacking by muti-piece steel casement door block-by-block；The gate slot exists
Pre-buried channel steel forms before overflow dam, for being guided in place the Stoplog gate.Opening and closing wall is equipped in the flushing sluice within the walls
The gate valve within the walls of interior flushing sluice, the interior outlet lock being equipped with for closing power generation intake transition of power generation intake transition
Door.
In addition, the vertical shaft is formed or by concrete prefabricated by steel into wall top cover board, the wall top cover board is equipped at manhole
It is made；It is described within the walls into seal cover board is equipped at manhole, which is steel safety cover board.
By taking above-mentioned technical measures, the component of most critical be before dam sand-trap water-take aperture in During Process of Long-term Operation
It can suffer silting, closure of the settling pit in overflow dam in maintenance, mainly solving the technical problems that: in dam side, setting is let out
Hong Lasha lock carries out regular flood discharge, washes away the bed load accumulated before dam with coarse granule suspended load to deposit before solving dam.Meanwhile
In the process of running, for the fine grained suspended load for entering settling pit with library water and being deposited in pond, by the wall of the dam other side
Gate valve within the walls in interior flushing sluice is periodically opened, and the silt being deposited in settling pit is washed away；In maintenance process, before starting dam
Stop log gate one fan by reserved gate slot in place, the general that hangs in gate slot first with dam crest headstock gear by stoplog door system
Husky water intaking hole is drawn to block before dam, meanwhile, the gate valve for controlling flushing sluice opening and closing within the walls is in closed state, by settling pit inner product water conservancy
It is drained, settling pit can be overhauled with water pump.
Compared with prior art, the present invention the present invention has at least the following advantages and the utility model has the advantages that
1, the composite structure pattern for taking settling pit to combine with low weir overflow dam will not only have settling pit effectively heavy
The big advantage of sand, overflow dam reservoir impoundment power generation, rainy season flood discharge, and occupied area is greatly reduced, project amount is more saved,
Greatly reduce cost.
2, improvement overflow dam dam structure adjusts settling pit layout pattern, is allowed to the two combination, avoids the two from setting up separately scarce
Point has both the two advantage, and saving settling pit arrangement space, hinge occupied area are small, project amount saves, invest less, overflow dam lets out
Flow is big, the husky effect of drawing is good, desilting effect is excellent.
3, the new structure of settling pit built in overflow dam, compared with the settling pit of ground, occupied area is less, and project amount is more
Small, cost is lower.
4, the new structure of settling pit built in overflow dam, compared with settling pit in hole, structure is simple, easy for construction, difficulty
Smaller, faster, the duration is shorter for progress, and operation and maintenance and maintenance of stopping transport are all simpler, effective.
5, the new structure of settling pit built in overflow dam, not only under normal circumstances can diversion and power, but also rainy season flood discharge
Amount is big, and settling pit desilting effect might as well.
Detailed description of the invention
Fig. 1 is the new structural upstream schematic elevation view of settling pit built in overflow dam of the invention；
Fig. 2 is the new structural plane section schematic diagram of settling pit built in overflow dam of the invention；
Fig. 3 is the new structural vertical section schematic diagram of settling pit built in overflow dam of the invention；
Fig. 4 is the vertical section that the flushing sluice within the walls of wall is led on the new structural bank of settling pit built in overflow dam of the invention
Schematic diagram；
Fig. 5 is the vertical section schematic diagram that husky lock is drawn in the new structural flood discharge of settling pit built in overflow dam of the invention.
Wherein: 1-built-in settling pit overflow dam, 2-flushing sluices within the walls, 3-power generation intake transitions, 4-flood discharges are drawn
Husky lock, 5-overflow dams, 6-galleries, settling pit in 7-dams, 8-sand-trap water-take apertures, stoplog door system before 9-dams,
10-Stoplog gates, 11-gate slotes, 12-sand surfing slots within the walls, 13-gate valves within the walls, 14-vertical shafts are into manhole, 15-wall top cover boards,
16-within the walls into manhole, 17-seal cover boards, and 18-the first into the venthole within the walls of manhole ladder, 19-, and 20-the second into manhole
Ladder.
Specific embodiment
As shown in Fig. 1~5, the new structure of settling pit built in overflow dam of the invention mainly includes built-in settling pit boiling water
Husky lock 4 is drawn in dam 1, within the walls flushing sluice 2, power generation intake transition 3, flood discharge, and built-in settling pit overflow dam 1 includes 5 He of overflow dam
Settling pit 7 in dam, wherein built-in settling pit overflow dam 1 is arranged in riverbed center, both releases in flood period in rainy season more than weir crest
Flood can also draw and library water is taken to enter the precipitating of settling pit 7 water in dam by multiple sand-trap water-take apertures 8 on 5 upstream face of overflow dam
Middle suspended sediment；Flushing sluice 2 is not only as the wall of leading of 5 side of overflow dam is arranged in riverbank side within the walls, and be located at
Settling pit 7 communicates in dam in overflow dam 5, periodically drains the silt of settling pit 7 in dam；Power generation intake transition 3 is located at dam
The lower part of husky lock 4 is drawn in the water outlet side of interior settling pit 7, the upstream of intake of generating electricity, flood discharge, takes settling pit 7 in dam to draw
Clear water enters power plant building through penstock and drives turbine-generator units power generation；Flood discharge draw husky lock 4 be located at overflow dam 5 the other side,
Generate electricity intake side, not only can be at the sand-trap water-take aperture 8 before row dam is drawn in the flood discharge of over-level flood phase based on bed load
Silt, and can regular flood and sand discharging, while also playing a part of leading wall as flood discharge.The power generation intake transition
3 be the gradual transition section for connecting the water outlet of settling pit 7 and power generation intake in dam, and the lower part of husky lock 4, library water are drawn positioned at flood discharge
In suspended load be deposited in dam in several rifflers in settling pit 7, in pond the outlet of clear water 7 end of settling pit in dam
Power generation intake transition 3 is flowed through, diversion tunnel import, tunnel, penstock are introduced, into power plant building, drives water wheels hair
Electric unit generation.The flood discharge draws husky lock 4 mainly to draw the hole Sha Zha, flood discharge to draw husky gate, venthole group by retaining box body, flood discharge
At, be mainly used for flood discharge and drain the bed load accumulated before dam and coarse granule suspended load, belong to meet engineering operate normally when
Conventional composition facility, does not repeat hereby.
Overflow dam 5 of the invention is located on dam foundation face, and dam body overflow weir is practical weir, is provided with gallery in dam
6, settling pit 7 in dam is equipped with sand-trap water-take aperture 8 before dam.Gallery 6 be located at the lower section in weir face, in dam settling pit 7 top
Between, husky lock 4 is drawn in the flood discharge of first led within the walls into people's vertical shaft and the other side at the both ends and 5 side of overflow dam of gallery 6
Gate pier in second communicated into people's vertical shaft, in order to which operational inspection, maintenance are passed through.Settling pit 7 is located at 5 dam body of overflow dam in dam
Abdominal cavity center, side pass through flood discharge and husky lock 4 are drawn to communicate with power generation intake transition 3 (penstock intake), and the other side is immediately
Flushing sluice 2 within the walls of wall are led, dam body is retained library water and precipitated by settling pit 7 in 8 diversion to dam of sand-trap water-take aperture before dam, draws
Satisfactory water purification is taken to flow into penstock through penstock intake again, the silt precipitated in settling pit 7 in dam periodically passes through wall
Interior flushing sluice 2 excludes.Sand-trap water-take aperture 8 before dam is connected to settling pit 7 in dam body upstream upstream face reservoir and dam, and water is used in power generation
In most of bed load and small part suspended load intercepted before overflow dam 5 and formed and deposited by sand-trap water-take aperture 8, it is most of
Suspended load then enters settling pit 7 in dam in company with power generation water.
In addition, overflow dam 5 is a kind of flood discharge overflow barrage for being adapted to be supported on the satisfactory dam foundation face of bearing capacity
Weir, according to field condition, flood discharge overflow weir can be designed to WES, gram-difficult to understand curve and broad-crested weir etc., weir face does not set gate
Operational management is convenient in control.
Gallery 6 of the invention is empty in the dam between settling pit 7 in a kind of overflow weir and dam between overflow dam 5
Chamber, by being connected into people's vertical shaft in the gate pier of the flood discharge drawing sand lock 4 for leading wall and the other side of 5 side of overflow dam, meanwhile, leading wall
Top (first into the top of people's vertical shaft) and (second into the top of people's vertical shaft) at the top of gate pier open up vertical shaft into manhole 14 respectively, into
People's vertical shaft is equipped with gallery 6 is extended to from vertical shaft into manhole 14 first into manhole ladder 18, in order to staff with interior
Operational inspection, maintenance are passed through.The vertical shaft at the top of wall and gate pier is being led into wall top cover board 15 is respectively set at manhole 14, in dam middle corridor
In 6 both ends of road to flushing sluice 2 within the walls, dam the power generation intake transition 3 of settling pit 7 within the walls at manhole 16, be respectively set
Seal cover board 17.
In addition, in the dam settling pit 7 be a kind of desilting facility for being arranged in 5 internal cavities of overflow dam, cavity side with
Flood discharge draws the penstock intake of 4 lower part of husky lock to connect, and the clear water in dam in settling pit 7 is introduced tunnel, penstock enters
Workshop power generation；The other side is connected with the flushing sluice within the walls 2 for leading wall, and the dam body of overflow dam 5 is retained library water and taken by the sediment trapping before dam
Water orifice 8 draws and settling pit 7 in the water to dam of library is taken to precipitate, and the silt precipitated in settling pit 7 in dam periodically passes through sand surfing within the walls
Hole 2 excludes.
Sand-trap water-take aperture 8 before dam is the water intaking aperture being arranged on the dam body upstream upstream face of overflow dam 5, and library water is through dam
Preceding water intaking aperture introduces in dam in settling pit 7, and bed load and coarse granule suspended load are intercepted the fine grained suspended load mud before dam
Sha Suiku water is deposited in dam in settling pit 7.The diameter and quantity, aperture flow velocity in sand-trap water-take aperture 8 should meet thick of interception
Grain, the fine grain requirement of precipitating, meet the requirement drawn and take rated generation reference flow.
Stoplog door system 9 is located at the dam body upstream face of overflow dam 5 before dam of the invention, and effect is that settling pit 7 is examined in dam
The sand-trap water-take aperture 8 before dam is blocked during repairing, and is mainly made of Stoplog gate 10, gate slot 11, opening and closing device (not shown),
When settling pit 7 needs to overhaul in dam, Stoplog gate 10 blocks the sand-trap water-take aperture 8 before dam by the lower lock of gate slot 11, then arranges
The cavity ponding of settling pit 7 is overhauled in empty dam.In maintenance, by the gate valve within the walls 13 of flushing sluice 2 within the walls and it is located at respectively
The outlet closing gate of the power generation intake transition 3 of 4 lower part of husky lock is drawn in flood discharge, so that settling pit 7 forms enclosure space in dam,
Then the ponding in dam in settling pit 7 is drained, then opens wall top cover board 15 and seal cover board 17, service personnel is by into manhole
Ladder, which enters in pond, to be maked an inspection tour, is overhauled.The gate valve within the walls 13 refers to periodically to exclude in dam the silt of settling pit 7 or right
Settling pit maintenance, and the opening and closing being arranged operates control gate valve.
Wherein, the Stoplog gate 10 be it is a kind of by several independent steel casement door block-by-blocks laterally to hang in gate slot 11 in place, superposition and
At a plane water-retaining structure.When settling pit 7 overhauls in dam, Stoplog gate 10 is first passed through under gate slot 11 before lock closure overflow dam 5
Sand-trap water-take aperture 8, then empty the cavity ponding of settling pit 7 in dam and overhauled.The gate slot 11 is using in overflow dam 5
To the guiding facilities in place of Stoplog gate 10 made of preceding pre-buried channel steel, Stoplog gate 10 is lifted by crane by the opening and closing device of dam crest under
The operation such as lock Stoplog gate 10, to control the opening and closing working condition of Stoplog gate 10.The opening and closing device is to pass through door by Stoplog gate 10
The common operation device systems that slot 11 is opened and closed generally use truck crane or crawler crane, the opening and closing of other patterns can also be used
Machine, such as hoist engine, usual headstock gear are arranged in dam crest, and are supported in the structures such as the plate-girder column of dam crest, built-in fitting, here without
It need to repeat, also not number specially.
Sand surfing slot 12 within the walls is provided at flushing sluice 2 within the walls, for make in dam the level in settling pit 7 it is suitable pass through boiling water
Dam 5 and bank entity is set and leads cavity within the walls, communicated with settling pit 7 in the dam being arranged in overflow dam 5, periodically drain dam
The silt deposited in interior settling pit 7.
Vertical shaft in the present invention, which refers to enter in order to facilitate personnel into manhole 14, carries out operational inspection and maintenance in overflow dam 5
It is current, and in dam crest to being provided with first between gallery 6 into people's vertical shaft and second into people's vertical shaft, in vertical shaft at manhole 14
Be arranged wall top cover board 15, first into people's vertical shaft and second into people's vertical shaft pre-buried first into manhole ladder 18, facilitate personnel to go out
Enter.Wherein, the wall top cover board 15 is the vertical shaft at the top of the gate pier that wall top portion is led on the riverbank of overflow dam 5 or husky lock 4 is drawn in flood discharge
A kind of current safety cover plate being arranged on into manhole 14, can be and formed by concrete prefabricated, be also possible to by steel make and
At.
Referring within the walls into manhole 16 in the present invention enters settling pit 7 in dam from gallery 6 in order to facilitate operations staff
Interior progress operational inspection and maintenance are passed through, and are being provided with third in gallery 6 and dam between settling pit 7 into people's vertical shaft, in wall
It is interior to facilitate personnel to enter and leave in third into people's vertical shaft pre-buried second into manhole ladder 20 into setting seal cover board 17 at manhole 16.
Wherein, the seal cover board 17 is to be arranged in the third for entering settling pit 7 in dam into people's vertical shaft and gallery intersection
A kind of steel safety cover board, cover board is sealing during operation, is full of and is jacked up by library water to prevent settling pit 7 in dam, out
Existing security threat, opens seal cover board during maintenance, to facilitate personnel to enter and leave settling pit in dam by vertical shaft.In the present invention
It include from leading wall top portion or flood discharge and drawing at the top of the gate pier of husky lock to gallery 6 first into manhole ladder 18 into manhole ladder,
Again from gallery 6 to dam in 7 bottom of settling pit vertical shaft concrete in be arranged second into manhole ladder 20, to facilitate operation people
The tour of member and the passage of service personnel.
In the present invention, it is provided in the downstream side of overflow dam and is communicated into people's vertical shaft and second into people's vertical shaft with described first
Venthole 19 within the walls, open up venthole 19 within the walls refer to maked an inspection tour for convenience in gallery 6, in dam in settling pit 7 into
Row maintenance personnel and be arranged within the walls ventilation respiratory ventilation, operation tonifying Qi hole, within the walls venthole 19 using into people's vertical shaft connect
Gallery 6, settling pit 7, sand-trap water-take aperture 8, within the walls flushing sluice 2 and power generation intake transition 3 in dam are led to, have led within the walls
The outlet of stomata 19 is arranged in downstream, and tilts down, and is poured into rainwater-proof.
The new structure of settling pit built in overflow dam of the invention improves overflow dam dam structure, adjusts settling pit cloth
The shortcomings that setting pattern, being allowed to the two combination, the two is avoided to set up separately has both the two advantage.Compared with the settling pit of ground, occupied area
Less, project amount is smaller, and cost is lower；Compared with settling pit in hole, structure is simple, easy for construction, and difficulty is smaller, and progress is more
Fastly, the duration is shorter, and operation and maintenance and maintenance of stopping transport are all simpler, effective；Meanwhile diversion and power, rainy season let out under normal circumstances
Magnanimity is big, and settling pit desilting effect is good.The present invention will not only have a wide range of applications in hydraulic and hydroelectric engineering field, will also use
In the fields such as civil engineering, architectural engineering, municipal works, water supply project, settling pit is novel built in overflow dam of the invention
Structure will have more wide development and application prospect.
The present invention is not limited to the above embodiments, and without departing from the spirit and scope of the present invention, the present invention is also
Have a changes and improvements of various such as sizes and length shape need, these changes and improvements both fall within the present invention claims
In the range of protection.The scope of the present invention is defined by the appended claims and its equivalents.
Claims (10)
1. the new structure of settling pit built in a kind of overflow dam has built-in settling pit overflow dam (1), which is characterized in that described
Built-in settling pit overflow dam (1) includes settling pit (7) in overflow dam (5) and dam, is located at riverbed center, in flood period in rainy season
Release flood discharge, draw library water taken to enter settling pit (7) in dam by the sand-trap water-take aperture (8) on overflow dam (5) upstream face
Precipitate suspended sediment in water；
The wall of leading of described overflow dam (5) side is arranged in riverbank side, and the wall of leading of the overflow dam (5) is equipped with and the dam
The flushing sluice within the walls (2) that interior settling pit (7) communicates, for periodically draining the silt of settling pit in dam (7)；
The other side of the overflow dam (5) is equipped with flood discharge and draws husky lock (4), for drawing row's overflow dam in the flood discharge of over-level flood phase
(5) silt based on bed load and regular flood and sand discharging are sentenced in the sand-trap water-take aperture (8) before；
The water outlet side of settling pit (7), flood discharge draw the lower part of husky lock (4) to be equipped with power generation intake transition (3) in the dam,
It takes the clear water of settling pit in dam (7) to enter power plant through penstock to generate electricity for drawing.
2. the new structure of settling pit built in a kind of overflow dam according to claim 1, it is characterised in that: the boiling water
The overflow weir on dam (5) is practical weir, is additionally provided in overflow dam (5) positioned in overflow weir and dam between settling pit (7)
Gallery (6)；The gallery (6) is respectively with first led within the walls of overflow dam (5) side into people's vertical shaft and boiling water
The flood discharge of dam (5) other side draws second in the gate pier of husky lock (4) to communicate into people's vertical shaft.
3. the new structure of settling pit built in a kind of overflow dam according to claim 1, it is characterised in that: the boiling water
The dam body upstream face on dam (5) is additionally provided with stoplog door system (9) before the dam for blocking the sand-trap water-take aperture (8)；
Stoplog door system (9) is mainly made of Stoplog gate (10), gate slot (11), opening and closing device before the dam.
4. the new structure of settling pit built in a kind of overflow dam according to claim 2, it is characterised in that: described first
Offer vertical shaft into manhole (14) into the top of people's vertical shaft into people's vertical shaft and second, described first into people's vertical shaft and second into
It is equipped with extend to gallery (6) from the vertical shaft into manhole (14) first in people's vertical shaft into manhole ladder (18), is used for
Staff makes an inspection tour, maintenance is passed through.
5. the new structure of settling pit built in a kind of overflow dam according to claim 4, it is characterised in that: the boiling water
Leading for dam (5) side is equipped with third into people's vertical shaft in the top of flushing sluice within the walls (2) within the walls, and the third is into the top of people's vertical shaft
Portion is equipped within the walls into manhole (16), and the third extends to sand surfing within the walls into manhole (16) within the walls into being equipped with from described in people's vertical shaft
The second of hole (2) enters settling pit in dam (7) by flushing sluice (2) within the walls into manhole ladder (20), for service personnel.
6. the new structure of settling pit built in a kind of overflow dam according to claim 2, it is characterised in that: the boiling water
The downstream side on dam (5) is provided with the venthole within the walls (19) communicated into people's vertical shaft and second into people's vertical shaft with described first, for examining
Repair respiratory ventilation of divulging information when personnel make an inspection tour in settling pit (7) in gallery (6), dam；
The venthole within the walls (19) tilts down, for preventing rainwater from pouring into；
The venthole within the walls (19) is by settling pit (7), sand-trap water-take aperture (8), sand surfing within the walls in gallery (6), dam
Hole (2), power generation intake transition (3) connection carry out tonifying Qi.
7. the new structure of settling pit built in a kind of overflow dam according to claim 1, it is characterised in that: the flood discharge
Drawing husky lock (4) includes retaining box body, the flood discharge drawing hole Sha Zha, the husky gate of flood discharge drawing, drains the bed load accumulated before dam for flood discharge
With coarse granule suspended load.
8. the new structure of settling pit built in a kind of overflow dam according to claim 3, it is characterised in that: the stoplog
Door (10) is the plane water-retaining structure being formed by stacking by muti-piece steel casement door block-by-block；The gate slot (11) is pre-buried before overflow dam (5)
Channel steel forms, for being guided in place the Stoplog gate (10).
9. the new structure of settling pit built in a kind of overflow dam according to claim 1, it is characterised in that: it is described within the walls
It is equipped with the gate valve within the walls (13) for opening and closing flushing sluice (2) within the walls in flushing sluice (2), is set in the power generation intake transition (3)
There is the port strobe out for closing power generation intake transition (3).
10. the new structure of settling pit built in a kind of overflow dam according to claim 5, it is characterised in that: described is perpendicular
Well is equipped with wall top cover board (15) at manhole (14), the wall top cover board (15) by it is concrete prefabricated form or by steel production and
At；
It is described within the walls into seal cover board (17) are equipped at manhole (16), which is steel safety cover board.
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| CN201910766379.XA CN110409385A (en) | 2019-08-20 | 2019-08-20 | The new structure of settling pit built in a kind of overflow dam |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910766379.XA CN110409385A (en) | 2019-08-20 | 2019-08-20 | The new structure of settling pit built in a kind of overflow dam |
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| CN110409385A true CN110409385A (en) | 2019-11-05 |
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| SU522303A1 (en) * | 1974-06-19 | 1976-07-25 | Water intake facility | |
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| CN105464042A (en) * | 2015-12-02 | 2016-04-06 | 黄河勘测规划设计有限公司 | Multifunctional scouring resistance sand blocking dike |
| CN205907656U (en) * | 2016-07-05 | 2017-01-25 | 吴泰成 | Overflow dam body structure is prevented blockking up by water conservancy projects |
| CN107178072A (en) * | 2017-06-20 | 2017-09-19 | 郑州宇恒环保技术有限公司 | Dam body upstream bottom arranges silt system automatically |
| CN210712774U (en) * | 2019-08-20 | 2020-06-09 | 湖北水总水利水电建设股份有限公司 | Novel structure of built-in desilting basin of dam rolls |
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2019
- 2019-08-20 CN CN201910766379.XA patent/CN110409385A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU522303A1 (en) * | 1974-06-19 | 1976-07-25 | Water intake facility | |
| CN103243684A (en) * | 2013-05-20 | 2013-08-14 | 黄河勘测规划设计有限公司 | Water permeable masonry tailing dam structure |
| CN105464042A (en) * | 2015-12-02 | 2016-04-06 | 黄河勘测规划设计有限公司 | Multifunctional scouring resistance sand blocking dike |
| CN205907656U (en) * | 2016-07-05 | 2017-01-25 | 吴泰成 | Overflow dam body structure is prevented blockking up by water conservancy projects |
| CN107178072A (en) * | 2017-06-20 | 2017-09-19 | 郑州宇恒环保技术有限公司 | Dam body upstream bottom arranges silt system automatically |
| CN210712774U (en) * | 2019-08-20 | 2020-06-09 | 湖北水总水利水电建设股份有限公司 | Novel structure of built-in desilting basin of dam rolls |
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