CN203890952U - Spur dike structure suitable for stable river bed of mountain river - Google Patents
Spur dike structure suitable for stable river bed of mountain river Download PDFInfo
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- CN203890952U CN203890952U CN201420325150.5U CN201420325150U CN203890952U CN 203890952 U CN203890952 U CN 203890952U CN 201420325150 U CN201420325150 U CN 201420325150U CN 203890952 U CN203890952 U CN 203890952U
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- mountain stream
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Abstract
The utility model discloses a spur dike structure suitable for a stable river bed of a mountain river. The spur dike structure suitable for the stable river bed of the mountain river comprises a dike body and is characterized in that a reinforced concrete box body pressure top is arranged on the upper portion of the dike body, a box body is of a reinforced concrete hollow structure with a bottom, the cross section of the box body is overall trapezoidal, sandy gravel is arranged in the box body in a backfilling mode, and a cast-in-situ concrete sealing top is arranged on the top of the box body. The spur dike structure suitable for the stable river bed of the mountain river has the advantages of being simple in structure, convenient and fast to implement, low in implementation cost, good in upper strength and impact resistance, long in service life and very suitable for the stable river bed of the mountain river.
Description
Technical field
The utility model belongs to river improvement field, is specifically related to a kind of groynes structure that is applicable to mountain stream stability riverbed.
Background technology
Groynes is the hydraulic architecture for river improvement, because its one end and river (sea) bank joins, the other end reaches in waters, forms " fourth " font with embankment, is therefore groynes.
The major function of groynes is destroyed for protection riverbank is not produced by the direct erosion of incoming flow to draw brush, simultaneously it also improving navigation channel, safeguard aspect river facies and the variation of protection Ecology and bringing into play and acting on.It can hinder and weaken oblique wave and the corrosion function of littoral flow to seashore, promotes the alluvial of field, dam, forms new seabeach, reaches the object of protection seashore.It is up-narrow and down-wide trapezoidal that the dam body cross section of groynes is, and is generally made up of abutment, dam body and three parts of dam root.According to the relation of groynes crest elevation and water level, groynes can be divided into and flooding and two kinds of non-submersion formulas.For the groynes of navigation channel low water regulation, often, under water, be generally submerged.For the groynes of water regulation, what its crest elevation had slightly exceeds design flood level, or a little more than beach face, under general flood regime, is not submerged.
In mountain stream navigation channel, usually there is the situation that flow water body is less, cause the wider position of some river surfaces, boats and ships, because easily stranded and impassable, need to improve navigation channel by groynes, constriction discharge area, increase the dynamics of washing away, increase the boat groove depth of water, ensure safety of ship navigation.
Have the mountain stream in stability riverbed, refer to generally and be made up of hard basement rock or fine and close cobble, annual erosion and deposition changes the riverbed of little (erosion and deposition amplitude of variation is in 0.2m).Under this condition, fairway depth is more shallow, flow condition and severe, and multiform becomes danger, beach, hinders boat feature comparatively complicated.If set up herein groynes waterway regulation building, because flow rate of water flow is larger, fluidised form disorder, current are larger to the effect dynamics of dam body, and dam facing is often thrown.Common groynes exists strength deficiency that damaged or destroyed by flood easily occurs, resistance to overturning shorter defect in poor and application life.According to statistics, navigation channel, Chuanjiang River need be invested every year up to ten million units the regulating structure of the type is keeped in repair.
The groynes structure designing therefore those skilled in the art are necessary to study a kind of special streamflow regime for stability riverbed, improves groynes intensity, extends the groynes life-span.
Utility model content
For above-mentioned the deficiencies in the prior art, technical problem to be solved in the utility model is: how a kind of intensity that can improve dam facing is provided, can resist stronger water flow impact pressure, extend bulk life time, be applicable to the groynes structure in mountain stream stability riverbed.
In order to solve the problems of the technologies described above, the utility model has adopted following technical scheme:
A kind of groynes structure that is applicable to mountain stream stability riverbed, comprise dam body, it is characterized in that, the casing that dam body top is provided with steel bar concrete bears down on one, described casing is the concrete hollow structure at the bottom of hollow belt, casing cross section entirety is trapezoidal, and in casing, backfill is provided with sandy gravel, and casing top is provided with Cast-in-place concrete and binds.
The utility model is specially for the characteristic setting in stability riverbed, and dam body top has adopted steel bar concrete casing, and reinforcing steel bar concrete box body structure has enough intensity, can resist better the impact of stronger current, improves groynes upper strength, has extended application life.The notching construction that wherein steel bar concrete casing is hollow, fills cobble in its fluting, has so both guaranteed the prerequisite of casing self intensity and weight, has saved again manufacturing cost and has manufactured curing time.
As optimization, the bottom of described dam body is that jackstone piece is piled up formation.After optimizing like this, because riverbed self is highly stable, therefore the matrix that the accumulation of jackstone piece forms can have been guaranteed bond strength and the combination stability in groynes and riverbed, save manufacturing cost.
As optimization, described jackstone piece is the jackstone piece of weight 300Kg size.Can improve stability of strutting system.
As optimization, described steel bar concrete casing inside is provided with horizontal and vertical reinforcing bar, and wherein insert in the jackstone piece of dam body bottom to downward-extension vertical reinforcing bar lower end.
Like this, steel bar concrete casing is provided with horizontal and vertical reinforcing bar simultaneously, can guarantee steel bar concrete casing self intensity, and wherein vertical reinforcement lower end is inserted in matrix, the strength and stability that can improve combination between steel bar concrete casing and matrix, increases the service life better.
As optimization, described casing is arrange along axis of dam direction multiple, and single casing wall thickness is 150mm; Single box sizes is upper wide 3m, lower wide 5.43m, and high 1m, along the long 1.5m of axis of dam direction.Further, the Cast-in-place concrete at described casing top bind for C30 concrete and thickness be that 150mm is thick.By hydraulic experiment checking, the structure of these data can reach best intensity effect, has extended the groynes life-span.
As optimization, the described matrix upstream batter gradient is 1:1.5, and the downstream slope gradient is 1:2.Like this, downstream slope slows down, and can avoid better drop to impact.
As optimization, on described matrix downstream slope, be equipped with hinge row, hinge row upper end is installed with is fixed on steel bar concrete casing bottom, and being installed with length is 2m.Like this, can avoid better downstream slope to be subject to drop and impact and damage, produce better protection effect, hinge row is installed with fixingly by steel bar concrete casing simultaneously, and it arranges convenient and can have enough bonding strengths.
In sum, groynes of the present utility model has simple in structure, implements convenient and swiftly, and implementation cost is cheap, upper strength and good impact resistance, and the advantage of long service life is applicable to mountain stream stability riverbed and uses very much.
Brief description of the drawings
Fig. 1 is cross-sectional structure schematic diagram of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
When concrete enforcement: as shown in Figure 1, a kind of groynes structure that is applicable to mountain stream stability riverbed, comprise dam body, dam body cross section entirety is trapezoidal, dam body is made up of with the casing 2 that is positioned at the steel bar concrete bearing down on one on matrix 1 matrix 1 of bottom, described casing is the concrete hollow structure at the bottom of hollow belt, and it is the fluting 3 of interior back-up sand cobble (not shown) that described casing 2 cross section entirety are trapezoidal and middle part, and casing top is provided with Cast-in-place concrete and binds.Described matrix 1 is that jackstone piece 4 is piled up formation.Described jackstone piece 4 is the jackstone piece of weight 300Kg left and right size.Described steel bar concrete casing 2 inside are provided with horizontal and vertical reinforcing bar, and wherein vertical reinforcing bar lower end 5 is inserted and is fixed in matrix 1 to downward-extension.Described casing is arrange along axis of dam direction multiple, and single casing wall thickness is 150mm; Single box sizes is upper wide 3m, lower wide 5.43m, and high 1m, along the long 1.5m of axis of dam direction.The Cast-in-place concrete at described casing top bind for C30 concrete and thickness be that 150mm is thick.Described matrix 1 upstream batter 6 gradients are 1:1.5 left and right, and downstream slope 7 gradients are 1:2 left and right.On described matrix downstream slope 7, be equipped with hinge row 8, hinge is arranged 8 upper ends and is installed with and is fixed on steel bar concrete casing 2 bottoms, and being installed with length is 2m.When enforcement, steel bar concrete casing 2 adopts C30 concrete, guarantees intensity.
The utility model is specially for the characteristic setting in stability riverbed, dam body divides two parts of steel bar concrete casing for the matrix of bottom and top, because riverbed self is highly stable, therefore the matrix that the accumulation of jackstone piece forms can have been guaranteed bond strength and the combination stability in groynes and riverbed, has saved manufacturing cost.Upper reinforcement concrete body structure has enough intensity, can resist better the impact of severe current, improves groynes upper strength, has extended application life.The notching construction that wherein steel bar concrete casing is hollow, fills cobble in its fluting, has so both guaranteed the prerequisite of casing self intensity and weight, has saved again manufacturing cost and has manufactured curing time.Therefore this groynes has simple in structure, to implement convenient and swiftly, implementation cost is cheap, upper strength and good impact resistance, the advantage of long service life is applicable to mountain stream stability riverbed and uses very much.
Claims (8)
1. one kind is applicable to the groynes structure in mountain stream stability riverbed, comprise dam body, it is characterized in that, the casing that dam body top is provided with steel bar concrete bears down on one, described casing is the concrete hollow structure at the bottom of hollow belt, casing cross section entirety is trapezoidal, and in casing, backfill is provided with sandy gravel, and casing top is provided with Cast-in-place concrete and binds.
2. the groynes structure that is applicable to mountain stream stability riverbed as claimed in claim 1, is characterized in that, the bottom of described dam body is that jackstone piece is piled up formation.
3. the groynes structure that is applicable to mountain stream stability riverbed as claimed in claim 2, is characterized in that, described jackstone piece is the jackstone piece of weight 300Kg size.
4. the groynes structure that is applicable to mountain stream stability riverbed as claimed in claim 1, is characterized in that, described steel bar concrete casing inside is provided with horizontal and vertical reinforcing bar, and wherein insert in the jackstone piece of dam body bottom to downward-extension vertical reinforcing bar lower end.
5. the groynes structure that is applicable to mountain stream stability riverbed as claimed in claim 1, is characterized in that, described casing is arrange along axis of dam direction multiple, and single casing wall thickness is 150mm; Single box sizes is upper wide 3m, lower wide 5.43m, and high 1m, along the long 1.5m of axis of dam direction.
6. the groynes structure that is applicable to mountain stream stability riverbed as claimed in claim 1, is characterized in that, the Cast-in-place concrete at described casing top bind for C30 concrete and thickness be that 150mm is thick.
7. the groynes structure that is applicable to mountain stream stability riverbed as claimed in claim 1, is characterized in that, the described dam body bottom upstream batter gradient is 1:1.5, and the downstream slope gradient is 1:2.
8. the groynes structure that is applicable to mountain stream stability riverbed as described in claim 1 or 2 or 3 or 4 or 5, is characterized in that, is equipped with hinge row on described matrix downstream slope, and hinge row upper end is installed with is fixed on steel bar concrete casing bottom, and being installed with length is 2m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420325150.5U CN203890952U (en) | 2014-06-18 | 2014-06-18 | Spur dike structure suitable for stable river bed of mountain river |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420325150.5U CN203890952U (en) | 2014-06-18 | 2014-06-18 | Spur dike structure suitable for stable river bed of mountain river |
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| Publication Number | Publication Date |
|---|---|
| CN203890952U true CN203890952U (en) | 2014-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420325150.5U Expired - Fee Related CN203890952U (en) | 2014-06-18 | 2014-06-18 | Spur dike structure suitable for stable river bed of mountain river |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109338986A (en) * | 2018-11-21 | 2019-02-15 | 交通运输部天津水运工程科学研究所 | Cross sheet pile ecotype groynes |
| CN116716852A (en) * | 2023-08-02 | 2023-09-08 | 中水君信工程勘察设计有限公司 | Partition structure of asphalt concrete core wall rock-fill dam |
-
2014
- 2014-06-18 CN CN201420325150.5U patent/CN203890952U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109338986A (en) * | 2018-11-21 | 2019-02-15 | 交通运输部天津水运工程科学研究所 | Cross sheet pile ecotype groynes |
| CN116716852A (en) * | 2023-08-02 | 2023-09-08 | 中水君信工程勘察设计有限公司 | Partition structure of asphalt concrete core wall rock-fill dam |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141022 Termination date: 20150618 |
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| EXPY | Termination of patent right or utility model |