CN201459691U - Spillway with warped surface bottom board - Google Patents
Spillway with warped surface bottom board Download PDFInfo
- Publication number
- CN201459691U CN201459691U CN2009200940079U CN200920094007U CN201459691U CN 201459691 U CN201459691 U CN 201459691U CN 2009200940079 U CN2009200940079 U CN 2009200940079U CN 200920094007 U CN200920094007 U CN 200920094007U CN 201459691 U CN201459691 U CN 201459691U
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- spillway
- segment
- base plate
- flood spillway
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Abstract
A spillway with warped surface bottom board comprises an inlet segment, a control segment, a rectification segment and a deflecting flow segment which are mutually connected and composed of bottom boards and side walls. The spillway is characterized in that a slope turning segment is arranged between the rectification segment and the deflecting flow segment, the bottom board of the slop turning segment is a three-dimensional warped surface structure, the included angle between the lateral cross section and the horizontal surface is changed within 0-+-15 degrees, the slope of the vertical cross section is changed within 1:2-4, and the vertical trend comprises at least one curved line and at least one tangential path. The spillway changes the condition that a conventional spillway bottom board cross section is a uniform straight line or an oblique line, and the trend is mostly distributed in straight lines. The spillway solves disturbance waves generated by turning torrent, and improves the unbeneficial influence of torrent. The spillway has excellent fluidised form of water flow, has no phenomena of disturbance waves, has even flow speed of water current on the same cross section and has adequate energy dissipating under the extremely complex geologic and topographic conditions. The spillway has the advantages of simple and unique structure, easy construction, little engineering investment, wide application range and the like.
Description
Technical field
The utility model relates to the improvement of flood spillway structure in the water conservancy and hydropower multi-purpose project, is a kind of flood spillway with warp surface base plate specifically.
Background technology
Flood spillway is the outlet structure escape works in the water conservancy and hydropower multi-purpose project, mainly is to lead the flood that planning storage capacity institute can not hold off, prevents the flood dam crest that overflows, with the assurance dam safety.
The base plate of conventional flood spillway is the straight line or the oblique line of homogeneous on the cross section generally, and the trend of flood spillway generally is straight line.During flood discharge, current are in the torrent state, high speed water fails to be convened for lack of a quorum and brings some as specific questions such as shock wave, current aeration, cavitation corrosion and pressure fluctuations.Because abutment wall changes direction, current are disturbed, will cause shock wave, the fluctuation range of shock wave may be extended far, makes current along the cross section skewness, therefore, the essential height that increases abutment wall, thereby increase the investment of engineering, and bring adverse effect, bring bigger potential safety hazard to engineering to earial drainage and outlet energy dissipating.
The utility model content
The purpose of this utility model is at above-mentioned deficiency, and a kind of structure uniqueness, the construction costs flood spillway with warp surface base plate low, safe and reliable to operation are provided.
The technical scheme that realizes the utility model purpose is:
This flood spillway with warp surface base plate, comprise interconnective inducer, control section, the rectification section that constitutes by base plate, abutment wall and choose the stream section, characteristics are rectification sections and choose between the stream section and be provided with the abrupt slope turnaround section that the base plate of abrupt slope turnaround section is three-dimensional twisted structure.
Described three-dimensional twisted structure is meant, flood spillway is with the variation of residing geology, orographic condition, the horizontal section of abrupt slope turnaround section base plate and the angle of horizontal plane change between 0-± 15 degree, the gradient of longitudinal profile changes between than 2-4 1, and vertical trend of abrupt slope turnaround section is made up of at least 1 section arc and 1 section straightway at least.
The utility model structure uniqueness, this professional those of ordinary skill can be according to the residing different geology of flood spillway, orographic condition, appropriate design has that each forms the concrete engineering parameter of section in the flood spillway of warp surface base plate according to a conventional method, particularly the warp surface shape of the base plate of abrupt slope turnaround section is implemented easily.
Flood spillway of the present utility model has changed conventional flood spillway base plate and be the straight line of homogeneous or oblique line on the cross section, and the flood spillway trend mostly is the situation of straight line.Effectively solve the perturbation wave that the bend torrent produces, improved the adverse effect of torrent.Under geology, orographic condition ten minutes complicated situation, flow-shape is good, no perturbation wave phenomenon, the same cross section of turnaround section, whole flood spillway abrupt slope flow rate of water flow is even, energy dissipating is abundant, and has saved construction investment greatly, has solved the big problem of flood spillway layout difficulty in the past.Have advantages such as uniqueness simple in structure, easily construction, construction investment are few, applied range.After applying, will produce remarkable economic efficiency and social benefit.
Description of drawings
Fig. 1 is the longitudinal sectional drawing of the flood spillway of a kind of embodiment of the utility model.
Fig. 2 is that the A-A of Fig. 1 is to sectional drawing.
Fig. 3 is the plan view from above of Fig. 1 flood spillway.
Among the figure: 1 base plate, 2 abutment walls, 3 inducers, 4 control sections, 5 rectification sections, 6 abrupt slope turnaround section, 6-1 arc, 6-2 straightway, 7 choose the stream section.
The specific embodiment
The utility model is further described with the embodiment that provides below in conjunction with accompanying drawing.
The residing geology of present embodiment flood spillway, orographic condition are very complicated, if the straight line flood spillway is very difficult according to a conventional method, even with the translation in massif of flood spillway axis integral body, the rock excavation amount is big, flood spillway top massif instability need be taked specially treated, and construction costs is very high, and the horizontal rock gradient of flood spillway is bigger, and the basis can not be seated on the basement rock fully.Therefore, select the flood spillway with warp surface base plate of the present utility model for use.
With reference to accompanying drawing, this flood spillway with warp surface base plate is by interconnective inducer 3, control section 4, rectification section 5, the abrupt slope turnaround section 6 that is made of base plate 1, abutment wall 2 with choose stream section 7 and form.
The base plate of flood spillway inducer, rectification section generally is flat or the adverse grade of certain slope arranged, make current smooth-going, flow to control section equably.The control section base plate can be the various types of overflow weir, as sharp-crested weir, broad crested weir, practical weir (section configuration can be rectangle, trapezoidal or shaped form), to improve the discharge capacity of flood spillway.Choose stream section base plate and be generally circular arc, the smooth and easy river course downstream of letting out of the high-velocity flow that the abrupt slope turnaround section is got off.
Characteristics are, rectification section and choose the base plate of the abrupt slope turnaround section between the stream section according to the variation of residing geology, orographic condition, is the three dimensions warp surface and changes structure.The horizontal section of abrupt slope turnaround section base plate and the angle α of horizontal plane change between 0-± 15 degree, and the gradient of longitudinal profile changes between than 2-4 1.Vertical trend of abrupt slope turnaround section is that 114 meters, inner arc radius are that 106 meters arc 6-1 and 8 meters long straightway 6-2 form by 1 section outer arc radius.
Trial run shows the flood spillway of present embodiment through inside, the every bit of this abrupt slope turnaround section base plate is not all on same elevation, make the flood spillway flow-shape good, no perturbation wave phenomenon under the bend cataract action, the same cross section of turnaround section, whole flood spillway abrupt slope flow rate of water flow is even, the depth of water equates that energy dissipating is abundant.Through repeatedly diluvial test, play the effect of water conservation and peak regulation, and saved construction investment greatly, solved the big problem of flood spillway layout difficulty in the past.
Claims (2)
1. flood spillway with warp surface base plate, comprise interconnective inducer, control section, the rectification section that constitutes by base plate, abutment wall and choose the stream section, it is characterized in that rectification section and choose between the stream section being provided with the abrupt slope turnaround section, the base plate of abrupt slope turnaround section is three-dimensional twisted structure.
2. the flood spillway with warp surface base plate according to claim 1, it is characterized in that three-dimensional twisted structure is meant, flood spillway is with the variation of residing geology, orographic condition, the horizontal section of abrupt slope turnaround section base plate and the angle of horizontal plane change between 0-± 15 degree, the gradient of longitudinal profile changes between than 2-4 1, and vertical trend of abrupt slope turnaround section is made up of at least 1 section arc and 1 section straightway at least.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200940079U CN201459691U (en) | 2009-07-12 | 2009-07-12 | Spillway with warped surface bottom board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200940079U CN201459691U (en) | 2009-07-12 | 2009-07-12 | Spillway with warped surface bottom board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201459691U true CN201459691U (en) | 2010-05-12 |
Family
ID=42387044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200940079U Expired - Fee Related CN201459691U (en) | 2009-07-12 | 2009-07-12 | Spillway with warped surface bottom board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201459691U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101864754A (en) * | 2010-06-11 | 2010-10-20 | 四川大学 | Inclined flip bucket for spillway or flood discharge hole outlet |
| CN102677640A (en) * | 2012-05-25 | 2012-09-19 | 四川大学 | Step energy dissipater comprising reverse arc surfaces |
-
2009
- 2009-07-12 CN CN2009200940079U patent/CN201459691U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101864754A (en) * | 2010-06-11 | 2010-10-20 | 四川大学 | Inclined flip bucket for spillway or flood discharge hole outlet |
| CN101864754B (en) * | 2010-06-11 | 2012-07-04 | 四川大学 | Inclined flip bucket for spillway or flood discharge hole outlet |
| CN102677640A (en) * | 2012-05-25 | 2012-09-19 | 四川大学 | Step energy dissipater comprising reverse arc surfaces |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100512 Termination date: 20130712 |