CN206554031U - It is a kind of sand washing to subtract the arc line type overflow dam of silt automatically - Google Patents
It is a kind of sand washing to subtract the arc line type overflow dam of silt automatically Download PDFInfo
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- CN206554031U CN206554031U CN201720242191.1U CN201720242191U CN206554031U CN 206554031 U CN206554031 U CN 206554031U CN 201720242191 U CN201720242191 U CN 201720242191U CN 206554031 U CN206554031 U CN 206554031U
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Abstract
Sand washing it can subtract the arc line type overflow dam of silt automatically the utility model discloses a kind of.It is described it is a kind of sand washing can subtract the arc line type overflow dam of silt automatically, including dam body, aerial drainage clearance hole, gate slot, gate, lead wall and shore protection；It is characterized in that the dam body is arc line type reinforced concrete structure；The aerial drainage clearance hole is laid on the right side of dam body；The gate slot is arranged in aerial drainage clearance hole both sides inwall；The gate is hand steel-slag sand, on gate slot；The wall of leading is located at upstream right bank for antiscour reinforced concrete structure；The shore protection is antiscour reinforced concrete structure, is located at downstream left bank.Wet season, steel-slag sand is opened, utilize the bend cross current automatic drainage sand washing of arc line type dam body formation；In dry season, close steel-slag sand lifting water level retaining.The utility model compares traditional mountain area overflow dam, with sediment deposition is few, subtract the features such as silt cost is low, On The Comprehensive Beneficial Results are more notable before the generous attractive in appearance, dam of form.
Description
Technical field
The utility model is related to hydraulic engineering waterpower sediment outflow technical field, more particularly to a kind of sand washing to subtract silt automatically
Arc line type overflow dam.
Background technology
Because the features such as gradient of river bed is big, current anxious, flood fluctuation is fast, usually there is riverbank damaged or destroyed by flood, river course and broken in mountain channel
The phenomenons such as stream, have a strong impact on river channel ecology environment and littoral resident's productive life.Overflow dam has " retaining " concurrently with " letting out as one kind
The low water head hydraulic structure of water " function can effectively adjust upstream water level and letdown flow, reduce riverbed, riverbank scour, protect
Littoral life irrigation water and river channel ecology flow are hindered, have been used widely in mountain area in comprehensive treatment of small watersheds.However,
On the one hand mountain area overflow dam is retained due to dam body reduce in flow rate of water flow before dam, current silt particle gradually on dam in the process of running
Preceding alluvial；On the other hand because existing overflow dam structural shape is unreasonable, artificial clear what causes to deposit very tight before dam not in time
Weight.Largely alluvial causes mountain area overflow dam retaining to reduce to silt particle, lower sluice is flowed under not smooth, regulation river channel ecology traffic engineering capability before dam
Drop even completely loses etc. serious consequence.
At present, it is related to that overflow dam desilting subtracts silt research and patented technology is also rare, it is main as follows：（1）By in rolling
Aerial drainage sediment outflow lock is added on dam, for sediment outflow and ensure overflow dam upper river bunding remained under design flood play flood control
Effect（The design and application [J] Jiangxi Coal science and technology of Huang Jialin, Fu Xuefeng thermal power plants water intaking conveyance system overflow dam,
2014,（1）：60-63）；（2）To meet sand washing requirement, set what is be made up of lock well section and box culvert section in the middle part of overflow dam
Sand washing bottom outlet（Hou Bo brief talk application [J] the Shaanxi water conservancy of the positive sand discharge side diversion mode of noise made in coughing or vomiting wave Gu Er head works, and 2014,
（S1）：14-15）；（3）By rod triangle lock frame, rod and going here and there in the overflow dam that brake lining and sheet and protection-apron of going here and there constitute, staying
Going out lock frame interval position is used to set sand removing hole sediment outflow（Rolling dam equipment application numbers：200410033140.5；
2004.11.10）.
As can be seen here, it is main at present by setting aerial drainage sediment outflow lock or periodically artificial desilting to be become silted up to reduce before overflow dam dam
Product problem, achieves certain effect of sedimentation reduction, still, the former can not handle the sediment deposition of aerial drainage sediment outflow lock both sides very well, after
Person's desilting link is more, cost high.In addition, subtracting the rolling of silt using the automatic sand washing of Solution of Flow in Curved Channel by changing dam structure pattern at present
Dam and dredging method are there is not yet report.
Utility model content
For the problems such as sediment deposition before the overflow dam dam of mountain area is serious, artificial desilting cost is high, the utility model is based on curved
Current automatic sand washing in road subtracts silt principle, and there is provided a kind of generous attractive in appearance, the camber line structure that erosion and deposition effect is good, to subtract silt cost low of structure
Overflow dam.
The a kind of of the utility model exploitation sand washing can subtract the arc line type overflow dam of silt automatically, including dam body, aerial drainage clearance hole,
Gate slot, gate, lead wall and shore protection.The dam body is reinforced concrete structure, using arcuate structure formation artificial bend, utilizes people
The cross current sand washing that work bend is formed under the action of the centrifugal force, reduces and is deposited before dam；The aerial drainage clearance hole is laid in right bank,
Orifice shapes are square, it is ensured that let out under silt particle is smooth；The gate slot is arranged on aerial drainage clearance hole both sides inwall；The gate is hand
Dynamic formula steel-slag sand, on aerial drainage clearance hole inwall gate slot, can manually adjust aperture；The wall of leading is high-performance antiscour steel
Tendon concrete structure, is arranged on upstream right bank；The shore protection is high-performance antiscour reinforced concrete structure, is arranged on downstream left
Bank, for preventing overflow dam aerial drainage to the scour of left bank.
Compared with the prior art, the beneficial effects of the utility model are embodied in：1st, it is automatic using Solution of Flow in Curved Channel cross current
Sand washing subtracts silt, and effect of sedimentation reduction is good, it is low to subtract silt cost.
2nd, aerial drainage clearance hole and it is rich, dry season gate open and close combination, can with smooth sediment outflow and regulation amount of water to be discharged, protect
Demonstrate,prove enough storage capacity and retain life, irrigation water, while providing ecological flow, it is ensured that river course does not stop.
3rd, this structure has ensured that the more reliable fortune of overflow dam, comprehensive benefit are more preferably played.
4th, the sight of arc dam body architectonic beauty is generous, more coordinates with environment.
Brief description of the drawings
Fig. 1 is structure overall schematic of the present utility model.
In figure.
Embodiment
Below by taking certain domestic mountain stream as an example, do further detailed to the technical solution of the utility model with reference to accompanying drawing
Description.
The utility model provide it is a kind of sand washing can subtract the arc line type overflow dam of silt automatically, the mountain area overflow dam, including
The dam body 1 of dash, it is arranged on the aerial drainage clearance hole 2 of the right bank of dam body 1, on the inwall gate slot 3 of aerial drainage clearance hole 2
Gate 4 and be arranged in right bank upstream lead wall 5 and the shore protection 6 in left bank downstream.
Wherein described dam body 1 is arranged in the water intaking position that demand is big and geological conditions is good, is fixed using wooden template,
Ordinary reinforced concrete, which is poured, to be formed, and wherein concrete strength uses C25, and reinforcing bar uses HRB400E；According to arcuate structure curvature
Radius is not less than the requirement of 3.5 times of river course water surface width, and river course wide B in dam site position is 30 meters, radius of curvature R=4B=120 meter；
Upstream face is vertical face, and downstream face slope ratio is according to 1：0.6 ~ 0.8 scope is set to 1：0.6.
The aerial drainage clearance hole 2 uses square structure, and width chooses 3d=1500mm（Wherein d is the maximum cobble grain in river
Footpath, is 500mm）, longitudinal slope is 60 ‰, is sized to：1500mm×1500mm（It is long × high）.
The gate slot 3 is arranged on the both sides inwall of aerial drainage clearance hole 2, and size is set to it according to the gate 4 requirement
Both sides inwall is set to：600mm×300mm×1500mm（Length × width × height）.
The gate 4 is hand steel-slag sand, and specification is：1500mm×1500mm×300mm（Length × width x thickness）, install
Reinforced in gate slot 3, and using anchor cable.
The wall 5 of leading is arranged in right bank upstream, upstream prolonged at dam site for high-performance antiscour reinforced concrete structure
10 meters are stretched, concrete strength uses C30, reinforcing bar uses HRB400E.
The shore protection 6 is high-performance antiscour reinforced concrete structure, is arranged in left bank downstream, downstream prolongs at dam site
Stretch 10m, concrete strength uses C30, and reinforcing bar uses HRB400E, with it is described lead wall 5 the dam body 1 construction finish after simultaneously
Poured.
Finally it should be noted that：Above example is only to illustrate the technical solution of the utility model rather than it is limited
System；Although the utility model is described in detail with reference to preferred embodiment, those of ordinary skill in the art should
Understand：Still embodiment of the present utility model can be modified or some technical characteristics are equally replaced
Change；Without departing from the spirit of technical solutions of the utility model, it all should cover in the claimed technical scheme of the utility model.
Claims (6)
1. a kind of sand washing can subtract the arc line type overflow dam of silt automatically, it is characterised in that including dam body（1）, aerial drainage clearance hole（2）、
Gate slot（3）, gate（4）, lead wall（5）And shore protection（6）；The dam body（1）For reinforced concrete structure；The aerial drainage clearance hole
（2）Lay on the right side of dam body (1)；The gate slot（3）It is arranged on aerial drainage clearance hole（2）Both sides inwall；The gate（4）For hand
Steel-slag sand, installed in gate slot（3）On；It is described to lead wall（5）For antiscour reinforced concrete structure；The shore protection（6）For antiscour
Reinforced concrete structure.
2. a kind of according to claim 1 sand washing can subtract the arc line type overflow dam of silt automatically, it is characterised in that the dam body（1）
Not less than 3.5 times river course water surface width of radius of curvature.
3. a kind of according to claim 1 sand washing can subtract the arc line type overflow dam of silt automatically, it is characterised in that the dam body（1）
Compare 1 in downstream face slope:0.6~0.8.
4. a kind of according to claim 1 sand washing can subtract the arc line type overflow dam of silt automatically, it is characterised in that the aerial drainage row
Sand hole（2）Orifice shapes to be square.
5. a kind of according to claim 1 sand washing can subtract the arc line type overflow dam of silt automatically, it is characterised in that the aerial drainage row
Sand hole（2）2.5 ~ 3.0 times of width at least above river silt particle maximum particle diameter.
6. a kind of according to claim 1 sand washing can subtract the arc line type overflow dam of silt automatically, it is characterised in that the aerial drainage row
Sand hole（2）Longitudinal slope be 50 ‰ ~ 200 ‰.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720242191.1U CN206554031U (en) | 2017-03-14 | 2017-03-14 | It is a kind of sand washing to subtract the arc line type overflow dam of silt automatically |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720242191.1U CN206554031U (en) | 2017-03-14 | 2017-03-14 | It is a kind of sand washing to subtract the arc line type overflow dam of silt automatically |
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| CN206554031U true CN206554031U (en) | 2017-10-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106702968A (en) * | 2017-03-14 | 2017-05-24 | 长沙理工大学 | Arc type overflow dam capable of automatically washing away sand and reducing siltation and running method of arc type overflow dam |
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2017
- 2017-03-14 CN CN201720242191.1U patent/CN206554031U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106702968A (en) * | 2017-03-14 | 2017-05-24 | 长沙理工大学 | Arc type overflow dam capable of automatically washing away sand and reducing siltation and running method of arc type overflow dam |
| CN106702968B (en) * | 2017-03-14 | 2019-05-21 | 长沙理工大学 | It is a kind of can automatic sand washing subtract the arc line type overflow dam and its operation method of silt |
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