CN201526038U - Drop-down sand-settling type comprehensive stilling pool - Google Patents
Drop-down sand-settling type comprehensive stilling pool Download PDFInfo
- Publication number
- CN201526038U CN201526038U CN2009202367715U CN200920236771U CN201526038U CN 201526038 U CN201526038 U CN 201526038U CN 2009202367715 U CN2009202367715 U CN 2009202367715U CN 200920236771 U CN200920236771 U CN 200920236771U CN 201526038 U CN201526038 U CN 201526038U
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- drop
- absorption basin
- stilling
- discharging
- comprehensive
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Abstract
The utility model relates to a drop-down sand-settling type comprehensive stilling pool comprising one or more stilling pools arranged in a water-discharging/flood-discharging open channel. The structural characteristics of the comprehensive stilling pool are as follows: the stilling pool (1) is in a drop-down sand-settling type structure; the rear part or the drop-down position of all or parts of the stilling pool (1) is provided with a stilling threshold (2) which is connected with two edge slopes of the water-discharging/flood-discharging open channel (3); and the stilling threshold (2) is internally provided with at least two water-discharging channels. The drop-down sand-settling type comprehensive stilling pool integrates the functions of a sand-settling pool and the stilling pool, has not only the function of dissipating energy, and simultaneously obvious sand-settling effect, can effectively prevent siltation of the channels, but also is applicable to a large-drop open channel structure in the form of stone blocks with cement mortar; therefore, the drop-down sand-settling type comprehensive stilling pool reduces the cost of water-discharging (flood) engineering of the open channel in reverse, and has larger promotion value and space in the industry of feeding and discharging water of the building.
Description
Technical field
The utility model relates to the comprehensive absorption basin of a kind of drop sand setting formula, is a kind of novel comprehensive absorption basin that has grit chamber and absorption basin function concurrently.Belong to big drop drainage by open canal (flood) field of engineering technology.
Background technology
In the drainage by open canal/flood discharge engineering of big drop, the downstream suffers serious erosion damage because of bearing bigger earial drainage energy, in order to prevent or reduce the erosion damage in downstream, the energy dissipating engineering of subduing and spreading the earial drainage energy is the emphasis and the difficult point of hydraulic engineering always, and it is one of effective measures that absorption basin is set in the downstream.In the prior art, absorption basin is that continuous bank and height bank fall the bank absorption basin for two kinds, and this kind absorption basin can effectively reduce dirty earial drainage energy, reaches the purpose of energy dissipating.But, there is the high defective of unreasonable structure, function singleness and cost in these absorption basins of prior art, and, come interim at heavy rain, silt, leaf, rubbish, foreign material that the absorption basin of these structures is flowed to all size in the open channel easily silt up, bring very big inconvenience on the one hand the cleaning of channel, increase use cost on the other hand.Therefore, need in open channel, add again and build grit chamber, can increase the cost of open channel so greatly.If can design a kind of novel comprehensive absorption basin that had not only had grit chamber but also had the absorption basin function, will be a job highly significant.
The utility model content
The purpose of this utility model is in order to overcome the shortcoming that absorption basin function singleness in the prior art, cost height, channel are easily silted up by foreign material, to provide a kind of drop sand setting formula comprehensive absorption basin.
The purpose of this utility model is achieved through the following technical solutions:
The comprehensive absorption basin of drop sand setting formula, comprise the one or more absorption basins that are arranged in draining/flood discharge open channel, its design feature is: described absorption basin is drop sand setting formula structure, rear portion or drop place at all or part of absorption basin are provided with buffle sill, described buffle sill is connected with two side slopes of draining/flood discharge open channel, is provided with at least two drainage channels in buffle sill.
The utility model can also be achieved through the following technical solutions:
A kind of embodiment of the present utility model is: the drainage channel width that is provided with in buffle sill can be 0.1～0.2 meter.
Described drainage channel helps in time to drain all ponding after heavy rain finishes, and does not need labor cleaning's ponding, avoids ponding to grow problems such as mosquito.
A kind of embodiment of the present utility model is: the base plate of described absorption basin adopts the C25 plain concrete construction.
A kind of embodiment of the present utility model is: can be provided with bed course under the absorption basin base plate, this bed course adopts the C10 plain concrete construction.
A kind of embodiment of the present utility model is: open channel two side slopes can adopt the cemented rock form to build and build.
A kind of embodiment of the present utility model is: the absorption basin that is provided with in draining/flood discharge open channel has a plurality of, and described absorption basin is provided with one every 100m-150m, constitutes the comprehensive absorption basin of multistage drop sand setting formula.
Operating principle of the present utility model is: the flood current are facilitated the submerged hydraulic jump after flowing into the comprehensive absorption basin drop of the utility model drop sand setting formula, eliminate energy, make current carry out the transition to the downstream smooth-goingly and do not produce washing away of harm; Simultaneously, because baffle sill is connected with open channel two side slopes, make the base plate of buffle sill and absorption basin constitute similar grit chamber structure, buffle sill is equivalent to the pool wall of grit chamber, makes absorption basin play the grit chamber effect simultaneously.
The utlity model has following beneficial effect:
1, the utility model has grit chamber and absorption basin function concurrently, not only has the energy dissipating effect, and the sand setting effect is remarkable simultaneously, can prevent effectively that channel silts up, has reduced the cleaning work of channel.
2, the utility model goes for the big drop open channel structure of cemented rock form, and therefore, the utility model has reduced drainage by open canal (flood) construction costs again conversely, and bigger promotional value and space are arranged in the building water supply and drainage industry.
Description of drawings
Fig. 1 is a plan view of the present utility model.
Fig. 2 is the utility model A-A sectional drawing.
Fig. 3 is a drop place structural section of the present utility model.
Specific embodiment
Fig. 1～Fig. 3 constitutes specific embodiment of the utility model 1.
Referring to figs. 1 through Fig. 3, the comprehensive absorption basin of drop sand setting formula that present embodiment constitutes, comprise an absorption basin that is arranged in draining/flood discharge open channel, described absorption basin is drop sand setting formula structure, rear portion or drop place at absorption basin are provided with buffle sill, described buffle sill is connected with two side slopes of draining/flood discharge open channel, is provided with at least two drainage channels in buffle sill.In absorption basin 1 drop place, open channel two side slopes 3 adopt cemented rock to build and build, absorption basin 1 is flat rectangular cross section absorption basin, absorption basin base plate 1-1 builds with the C25 plain concrete, its underlayer 1-1-1 builds for the C10 plain concrete and forms, buffle sill 2 is connected with open channel two side slopes 3, with the base plate 1-1 formation grit chamber of absorption basin 1.
After of the drop place drop of flood current, facilitate the submerged hydraulic jump at absorption basin 1, eliminate energy, simultaneously, the flood current are in the grit chamber of buffle sill 2 and absorption basin 1 base plate 1-1 formation, the sand setting effect takes place, make foreign material such as most of silt in the flood current, leaf, rubbish be deposited in the absorption basin bottom, last, current are smooth-going to be carried out the transition to the downstream and not to produce washing away of harm.
The characteristics of present embodiment are: at least two in the passage of 0.1～0.2m can be set in the middle of the described buffle sill 2, help in time to drain all ponding after heavy rain finishes, not need labor cleaning's ponding, avoid ponding to grow problems such as mosquito.
The characteristics of present embodiment are: in the middle of the described buffle sill 2 three passages are set, the parameter setting of each structure of the present utility model can be provided with according to table 1.
Specific embodiment 4
Present embodiment is applied in the engineering of drainning off floodwaters of the 8th national national traditional ethnic minority sports meet Equestrian venue drop up to 65m, this project open channel total length 2600m, every 100-150m a comprehensive absorption basin of drop sand setting formula described in the utility model is set, test in rainy season through 3 years, amount to 20 the comprehensive absorption basin sandstone of drop sand setting formula piling heights near 0.8 meter, through artificial sand removal closely after totally 300 cubic metres, tidal channel continues to come into operation, the sand setting effect highly significant of the comprehensive absorption basin of proof drop sand setting formula in the drainage by open canal (flood) of big drop, and it is cheap, wide adaptability has bigger promotional value and space.
The comprehensive absorption basin parameter list of table 1 drop sand setting formula
Annotate: σ: flood safety factor and get 1.05-1.10; H ': second conjugate depth; Head on the H1 buffle sill; L ': overflow jet length; L ": hydraulic jump length; When calculating d1＜1m, get d1=1m.
Claims (5)
1. the comprehensive absorption basin of sand setting formula drops, comprise the one or more absorption basins (1) that are arranged in draining/flood discharge open channel, its design feature is: described absorption basin (1) is drop sand setting formula structure, rear portion or drop place at all or part of absorption basin (1) are provided with buffle sill (2), described buffle sill (2) is connected with two side slopes (3) of draining/flood discharge open channel, is provided with at least two drainage channels in buffle sill (2).
2. the comprehensive absorption basin of drop sand setting formula according to claim 1 is characterized in that: the drainage channel width that is provided with in described buffle sill (2) is 0.1～0.2 meter.
3. the comprehensive absorption basin of drop sand setting formula according to claim 1 is characterized in that: the base plate (1-1) of described absorption basin (1) adopts the C25 plain concrete construction.
4. the comprehensive absorption basin of drop sand setting formula according to claim 1 is characterized in that: have bed course (1-1-1) at absorption basin base plate (1-1), this bed course (1-1-1) adopts the C10 plain concrete construction.
5. the comprehensive absorption basin of drop sand setting formula according to claim 1 is characterized in that: every 100m-150m an absorption basin is set in draining/flood discharge open channel, constitutes the comprehensive absorption basin of multistage drop sand setting formula.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202367715U CN201526038U (en) | 2009-09-30 | 2009-09-30 | Drop-down sand-settling type comprehensive stilling pool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202367715U CN201526038U (en) | 2009-09-30 | 2009-09-30 | Drop-down sand-settling type comprehensive stilling pool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201526038U true CN201526038U (en) | 2010-07-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202367715U Expired - Lifetime CN201526038U (en) | 2009-09-30 | 2009-09-30 | Drop-down sand-settling type comprehensive stilling pool |
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| Country | Link |
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| CN (1) | CN201526038U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102828494A (en) * | 2012-09-10 | 2012-12-19 | 乔海洲 | Flood discharging tunnel grit chamber design and method for fast cleaning deposited sand |
| CN106958229A (en) * | 2017-03-09 | 2017-07-18 | 长江勘测规划设计研究有限责任公司 | Hydraulic engineering construction expropriation of land immigrants concentrate the anti-mountain torrents work arrangement in settlement |
-
2009
- 2009-09-30 CN CN2009202367715U patent/CN201526038U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102828494A (en) * | 2012-09-10 | 2012-12-19 | 乔海洲 | Flood discharging tunnel grit chamber design and method for fast cleaning deposited sand |
| CN106958229A (en) * | 2017-03-09 | 2017-07-18 | 长江勘测规划设计研究有限责任公司 | Hydraulic engineering construction expropriation of land immigrants concentrate the anti-mountain torrents work arrangement in settlement |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100714 |