CN204644994U - A kind of outlet structure escape works structure - Google Patents
A kind of outlet structure escape works structure Download PDFInfo
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- CN204644994U CN204644994U CN201520345193.4U CN201520345193U CN204644994U CN 204644994 U CN204644994 U CN 204644994U CN 201520345193 U CN201520345193 U CN 201520345193U CN 204644994 U CN204644994 U CN 204644994U
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- drains
- floodwaters
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- storehouse
- outlet
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Abstract
The utility model discloses a kind of outlet structure escape works structure, be included in the canal that drains off floodwaters around storehouse week arranged between Reservoir Bank excavation slope and Huan Ku highway, excavation slope is interval with multiple drop ditch perpendicular to the canal that drains off floodwaters along the canal that drains off floodwaters, and drop ditch is connected with the canal that drains off floodwaters; Be communicated with that position is corresponding is provided with sand trap at each canal that drains off floodwaters with drop ditch, this sand trap to be positioned at bottom the canal that drains off floodwaters and to be communicated with completely with the canal that drains off floodwaters; The two ends of the described canal that drains off floodwaters are provided with flood discharge outlet.Storehouse Zhou Laishui drains by outlet structure escape works structure of the present utility model in time, in an orderly manner, do not flow in storehouse, do not affect Reservoir Water Quality, and more economical relative to building structure costs such as traditional flood spillway, flood discharging tunnels, structure is simpler, run and overhaul all very convenient, being applicable to the flood discharge of the less digging type reservoir of collective area.
Description
Technical field
The utility model belongs to water conservancy project building technical field, is specifically related to a kind of outlet structure escape works structure being applicable to reservoir.
Background technology
Pumped storage power plant lower storage reservoir physical features is low, natural water or runoff many, high to water quality requirement in storehouse during energy storage power generation.Pumped storage power plant design in, be ensure reservoir safety run, need arrange special outlet structure escape works wash with watercolours let out storehouse week collective area within the scope of rainwater.Usually, table hole flood spillway is because its operation is simple, safety, inflow-rate of water turbine are greatly preferentially arranged, flood discharging tunnel is let out low discharge flood because of its wash with watercolours and facilitated, and often jointly combines flood discharge as outlet structure escape works with flood spillway.
The digging type lower storage reservoir less to collective area, still needs to arrange outlet structure escape works for meeting reservoir safety service requirement.Because collective area is little, the outlet structure escape works discharge capacity of required setting is little, should consider economical and practical.Because of storehouse week natural runoff or rainwater sediment charge large, directly enter in storehouse and can affect water quality, easily cause water turbine overflowing component rapid damage, time serious, affect the structural safety of Component of Hydraulic Turbines.
The outlet structure escape works costs such as normally used flood spillway, flood discharging tunnel are higher and the storehouse week mixed rainwater containing mudstone cannot be avoided directly to enter in storehouse, and existing outlet structure escape works layout pattern all can not adapt to the flood discharge requirement of the little digging type reservoir of collective area in pumped storage power plant well.
Utility model content
For the problems referred to above, the utility model aims to provide a kind of outlet structure escape works structure being suitable for the little digging type lower storage reservoir of pumping energy storage power station project collective area.
The technical scheme that the utility model is dealt with problems is: a kind of outlet structure escape works structure, be included in the canal that drains off floodwaters around storehouse week arranged between Reservoir Bank excavation slope and Huan Ku highway, excavation slope is interval with multiple drop ditch perpendicular to the canal that drains off floodwaters along the canal that drains off floodwaters, and drop ditch is connected with the canal that drains off floodwaters.
Be communicated with that position is corresponding is provided with sand trap at each canal that drains off floodwaters with drop ditch, this sand trap to be positioned at bottom the canal that drains off floodwaters and to be communicated with completely with the canal that drains off floodwaters.
The two ends of the described canal that drains off floodwaters are provided with flood discharge outlet.
Described drop ditch is step-like, and step base slope and excavation slope slope are than consistent.
The operating principle of these outlet structure escape works is: within the scope of canal layout of drainning off floodwaters, storehouse Zhou Yushui drops ditch ejectment to the canal that drains off floodwaters by side slope, then by sand trap precipitation bottom the canal that drains off floodwaters, the rainwater after precipitation drains into downstream, storehouse finally by the canal that drains off floodwaters from flood discharge outlet.
Slope, as first release floodwatering facility, is pushed up water in catchwater and is carried out orderly ejectment by drop ditch.Drain off floodwaters canal as second release floodwatering facility, and ditch internal drainage ejectment of dropping is to outside storehouse.The rainwater flowing to the canal that drains off floodwaters, as desilting facility, carries out precipitating rear discharge by sand trap.Whole flood discharge is in good order, guarantees that storehouse Zhou Yushui can drain into outside storehouse in time swimmingly.
Storehouse Zhou Laishui drains by outlet structure escape works structure of the present utility model in time, in an orderly manner, do not flow in storehouse, do not affect Reservoir Water Quality, and more economical relative to building structure costs such as traditional flood spillway, flood discharging tunnels, structure is simpler, run and overhaul all very convenient, being applicable to the flood discharge of the less digging type reservoir of collective area.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Fig. 1 is the utility model reservoir outlet structure escape works structural configuration plan view.
Fig. 2 is the enlarged front view of in Fig. 1 I.
Fig. 3 is the amplification profile of in Fig. 1 I.
In figure, 1, drop ditch; 2, drain off floodwaters canal; 3, sand trap; 4, Huan Ku highway; 5, side slope; 6, flood discharge outlet; 7, reservoir.
Detailed description of the invention
As shown in Figures 1 to 3, a kind of outlet structure escape works structure, be included in the canal 2 that drains off floodwaters around storehouse week arranged between reservoir 7 storehouse bank excavation slope 5 and Huan Ku highway 4, excavation slope 5 is interval with multiple drop ditch 1 perpendicular to the canal 2 that drains off floodwaters along the canal 2 that drains off floodwaters, and drop ditch 1 is connected with the canal 2 that drains off floodwaters.
Be communicated with that position is corresponding is provided with sand trap 3 at each canal 2 that drains off floodwaters with drop ditch 1, this sand trap 3 to be positioned at bottom the canal 2 that drains off floodwaters and to be communicated with completely with the canal 2 that drains off floodwaters.
Described two ends of drainning off floodwaters canal 2 are provided with flood discharge outlet 6.
The form of construction work of this outlet structure escape works structure is: side slope 5 is excavated the rear short place of selection landform and arranged drop ditch 1, dig carrying out groove bottom side slope 5 after drop ditch 1 completes, setting is drained off floodwaters canal 2, is communicated with position deep-cuts, as sand trap 3 at each canal 2 that drains off floodwaters with drop ditch 1.
The cross section of the described canal 2 that drains off floodwaters is rectangle, adopts reinforced concrete lining layer, lining thickness 0.5m, overcurrent width 1.6m ~ 2.0m;
Described drop ditch 1 is step-like, and adopt mortar laid stone lining, step base slope and excavation slope 5 slope are than consistent;
The cross section of described sand trap 3 is rectangle, adopts reinforced concrete lining layer, lining thickness 0.5m, overcurrent width 1.6m ~ 2.0m.
The silt of sand trap 3 manually can be removed after running a period of time.
Claims (2)
1. an outlet structure escape works structure, it is characterized in that: be included in the canal that drains off floodwaters around storehouse week arranged between Reservoir Bank excavation slope and Huan Ku highway, excavation slope is interval with multiple drop ditch perpendicular to the canal that drains off floodwaters along the canal that drains off floodwaters, and drop ditch is connected with the canal that drains off floodwaters;
Be communicated with that position is corresponding is provided with sand trap at each canal that drains off floodwaters with drop ditch, this sand trap to be positioned at bottom the canal that drains off floodwaters and to be communicated with completely with the canal that drains off floodwaters;
The two ends of the described canal that drains off floodwaters are provided with flood discharge outlet.
2. outlet structure escape works structure according to claim 1, is characterized in that: described drop ditch is step-like, and step base slope and excavation slope slope are than consistent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520345193.4U CN204644994U (en) | 2015-05-26 | 2015-05-26 | A kind of outlet structure escape works structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520345193.4U CN204644994U (en) | 2015-05-26 | 2015-05-26 | A kind of outlet structure escape works structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204644994U true CN204644994U (en) | 2015-09-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520345193.4U Active CN204644994U (en) | 2015-05-26 | 2015-05-26 | A kind of outlet structure escape works structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN204644994U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112832210A (en) * | 2021-02-25 | 2021-05-25 | 中国电建集团北京勘测设计研究院有限公司 | Drainage energy dissipation building shared by outlets of two drainage tunnels in parallel arrangement on axis |
| CN113638376A (en) * | 2021-08-16 | 2021-11-12 | 长江勘测规划设计研究有限责任公司 | Opening flip bucket with maintenance steps |
-
2015
- 2015-05-26 CN CN201520345193.4U patent/CN204644994U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112832210A (en) * | 2021-02-25 | 2021-05-25 | 中国电建集团北京勘测设计研究院有限公司 | Drainage energy dissipation building shared by outlets of two drainage tunnels in parallel arrangement on axis |
| CN113638376A (en) * | 2021-08-16 | 2021-11-12 | 长江勘测规划设计研究有限责任公司 | Opening flip bucket with maintenance steps |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |