CN101775788B - Block stone-reinforced concrete piling composite groyne bank protection structure - Google Patents
Block stone-reinforced concrete piling composite groyne bank protection structure Download PDFInfo
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- CN101775788B CN101775788B CN2010101080772A CN201010108077A CN101775788B CN 101775788 B CN101775788 B CN 101775788B CN 2010101080772 A CN2010101080772 A CN 2010101080772A CN 201010108077 A CN201010108077 A CN 201010108077A CN 101775788 B CN101775788 B CN 101775788B
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- campshed
- groynes
- bank protection
- stone
- protection structure
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/11—Hard structures, e.g. dams, dykes or breakwaters
Abstract
The invention relates to a block stone-reinforced concrete piling composite groyne bank protection structure, which is used for bank protection in hydraulic engineering and ocean engineering. The block stone-reinforced concrete piling composite groyne bank protection structure consists of reinforced concrete pilings, connecting and tying beams and block stones. When the composite pile type groyne structure ensures the accretion promotion and pond protection effect of the pile type groyne, the goal of reducing the engineering manufacture cost is reached through enlarging the piling space and reducing the consumption of reinforced concrete.
Description
Technical field
The present invention relates to the compound groynes technical field of a kind of block of stone-steel concrete campshed that hydraulic engineering, ocean engineering shore protection are used.
Background technology
Groynes is the building commonly used in Jiang Dao regulation, the bank protection work, utilizes groynes group's mass action, chooses the short silt of stream, protects the beach shore protection, for very important effect has been played in the safe operation in seawall.Each big river such as the Song Hua River of China, the Yellow River, the Changjiang river, the Zhujiang River is divided equally cloth and a large amount of groynes groups.In countries in the world such as U.S., France, Japan etc. also extensively adopt the water conservancy project structure of groynes as the shore protection water conservancy diversion.Generally the form of structure of the groynes of usefulness is the rockfill groin that fills on original riverbed, piece stone is thrown on the basis for loosing, dam foundation plinth is generally higher, and is loosely organized, and lifting surface area is big, crossing under dam current and the force tidal bore effect, big darker scour hole takes place through the abutment of being everlasting, dam body upstream toe and three positions of dam root in the riverbed degradation, and abutment washes away particularly violent, cause base of dam to hang sky, dam body fracture, abutment washout, groynes unstable failure.And dangerous situation is difficult to find often from the following position of low water stage in early days, brings big difficulty for the daily maintenance of speedily carrying out rescue work.Situation from rockfill groin destruction; the riverbed foundation scouring that mainly shows as abutment, dam root, dam upstream side is washed in a pan the concrete mask that sky etc. causes and is hung empty, rupture failure, especially with abutment protection difficulty the most, in case abutment destroys by rush of water; dam body will be shortened, and then full dam is ruined.
Stake formula groynes is based on the steel bar concrete campshed, is taken root in the groynes basis, guarantees the globality of groynes simultaneously with linking beam.Compare with traditional rockfill groin, this groynes structure can improve the ability that the anti-tidal bore of groynes is impacted greatly, guarantees the stability of groynes, reduces expenses such as regular maintenance.Yet adopt this kind stake formula groynes structure will adopt comparatively intensive concrete piling just can play better short the silt and protect pool effect, the cost of this kind stake formula groynes is improved greatly, be traditional rockfill groin more than 10 times, limited applying of this novel stake formula groynes structure.The technician generally also thinks, in stake formula groynes structure, because the steel bar concrete campshed has played the effect that main anti-tidal bore is impacted, and the intensity of other member is very limited, thereby no longer needs to increase other member and improve anti-impact force jointly.
The present invention has then overcome this understanding, combine the advantage of a formula groynes and traditional rockfill groin dexterously, by between stake formula groynes campshed, setting up certain thickness block stone layer, when ensureing that pool effect is protected in the short silt of stake formula groynes, strengthen the campshed spacing, reduce the steel concrete consumption, reach the purpose that reduces construction costs.
Summary of the invention
The objective of the invention is to develop a kind of novel composite pile formula groynes structure, it by strengthening the campshed spacing, reduces the steel concrete consumption when ensureing that pool effect is protected in the short silt of stake formula groynes, reach the purpose that reduces construction costs.
To achieve these goals, technical scheme of the present invention is: a kind of compound groynes bank protection structure of stone-steel concrete campshed, be made up of steel concrete campshed, linking beam, piece stone, wherein campshed is located at the upstream and downstream side of groynes, and linking beam is linked to be integral body with upstream and downstream side campshed; The downstream campshed is that solid matter is arranged at the dam body place, at the abutment place is to arrange at interval; The upstream side campshed is pressed the setting of 3.0m spacing; Evenly lay the piece stone of 1200mm thickness between the campshed of upstream and downstream side, piece stone diameter is not less than 300mm.
The of the present invention compound groynes bank protection structure of stone-steel concrete campshed is characterized in that: dam length 50m, the long 38m of dam body wherein, the long 12m of abutment, dam width 5m.
The of the present invention compound groynes bank protection structure of stone-steel concrete campshed is characterized in that: the steel concrete campshed that is adopted is C35 reinforced concrete prefabricated board stake (sectional dimension is 250mm * 250mm, and length is 3350mm).
The of the present invention compound groynes bank protection structure of stone-steel concrete campshed is characterized in that: the linking beam that is adopted is C30 reinforced concrete cast-in-situ linking beam (sectional dimension is 500mm * 500mm, and length is 3500mm).
Beneficial effect of the present invention:
The compound groynes bank protection structure of piece stone-steel concrete campshed has current chooses stream, decelerating effect, can effectively promote the alluvial of low beach face, when engineering is arranged, can be in conjunction with the embankment section structure, with the basis of groynes, play the effect of firm levee toe as the embankment footing.
When the compound groynes bank protection structure of piece stone-steel concrete campshed was applied to dredging waterway, than rockfill groin, the piece stone that can effectively avoid current scour to cause ran off in a large number, camped step by step, and progressively extended, and improved engineering efficient.
The compound groynes bank protection structure of piece stone-steel concrete campshed is by setting up certain thickness block stone layer between stake formula groynes campshed, when ensureing that pool effect is protected in the short silt of stake formula groynes, strengthen upstream side campshed spacing, reduce the steel concrete consumption, reach the purpose that reduces construction costs.Compare with stake formula groynes, save investment more than 50%.
The compound groynes bank protection structure of piece stone-steel concrete campshed is the many new structure groynes of advantage, is worth being promoted in the river management exploitation.
Description of drawings
Fig. 1 is compound groynes layout plan.
The specific embodiment
As shown in Figure 1, be compound groynes layout plan.The compound groynes bank protection structure of piece stone-steel concrete campshed, it is made up of steel concrete campshed, linking beam, piece stone, campshed is located at the upstream and downstream side of groynes, and linking beam is linked to be integral body with upstream and downstream side campshed, has at least the piece stone of 500mm laying depth evenly to be laid between the campshed of upstream and downstream side
Embodiment 1
For determining the rational arrangement form of compound groynes bank protection structure, carried out serial physical model test, model ratio 1: 5.Parameters such as the different dams of systematic comparison spacing, piece stone laying depth are to the influence of groynes bank protection structure protection against erosion effect.
Test is carried out in straight Rectangular Water Trough.Test is according to Qiantang River salt official one morning and evening tides with section of living in, the pool, bright cleer sea, bed configuration characteristics and the design of silt condition.
The protection against erosion effect of the groynes bank protection structure by the more different arrangement forms of straight flume test.
Each ingredient size of compound groynes bank protection structure is as follows:
Dam length: 10m (wherein, the long 7.6m of dam body, the long 2.4m of abutment)
Dam width: 1.0m
Campshed: adopting specification is sectional dimension 50 * 50mm, length 670mm, the stake of C35 reinforced concrete prefabricated board;
Linking beam: adopting specification is sectional dimension 100 * 100mm, length 700mm, C30 reinforced concrete cast-in-situ beam.
Piece stone evenly is layered between upstream and downstream side campshed, and laying depth is respectively 120mm, 240mm and 360mm, and piece stone diameter is not less than 60mm.
Stake formula groynes upstream side campshed spacing is compiled integral body to protection against erosion influential effect and compound groynes upstream side campshed spacing to the result of the test of protection against erosion influential effect, as shown in table 1-4.
By above-mentioned result of the test as can be known, for stake formula groynes, along with reducing of upstream side campshed spacing L, the beach face elevation increases, and illustrates that stake formula groynes erosion control effect is more and more obvious.But as campshed spacing L during less than 0.30m, for example, during for 0.20m, the beach face elevation increases not obvious, illustrate that L=0.30m is a formula groynes optimal design spacing.
For the combined type groynes, equally along with the reducing of upstream side campshed spacing L, the erosion control effect is more and more obvious.As shown in table 5, for identical campshed spacing L, for example, when campshed spacing L is 0.6m, increase along with block stone layer thickness, the beach face elevation increases, for example, and when block stone layer thickness is 240mm, the beach face elevation is-0.2m～-0.4m, than about the high 1.0m of stake formula groynes, this shows that the laying of piece stone has significantly improved the protection against erosion effect of groynes.But when block stone layer thickness during greater than 240mm, though the beach face elevation still has increase, change not quite, visible block stone layer thickness h=240mm is the optimal design block stone layer thickness of combined type groynes.By with stake formula groynes more as can be known, as campshed spacing L=0.60m, after only needing to lay block stone layer h=240mm, the stake formula groynes when the protection against erosion effect of combined type groynes can be better than campshed spacing L=0.30m.As seen, after certain thickness block of stone has been laid in increase, when ensureing that pool effect is protected in the short silt of groynes, can strengthen the campshed spacing, reduce the steel concrete consumption thus, reach the purpose that reduces construction costs.
Table 1 a formula groynes upstream side campshed spacing is to the protection against erosion influential effect
The compound groynes upstream side of table 2 campshed spacing is to protection against erosion influential effect (block stone layer thickness h=120mm)
The compound groynes upstream side of table 3 campshed spacing is to protection against erosion influential effect (block stone layer thickness h=240mm)
The compound groynes upstream side of table 4 campshed spacing is to protection against erosion influential effect (block stone layer thickness h=360mm)
Compound groynes of table 5 and of the comparison (campshed spacing L=0.6m) of stake formula groynes to the protection against erosion influential effect
Claims (4)
1. compound groynes bank protection structure of piece stone-steel concrete campshed, it is characterized in that: be made up of steel concrete campshed, linking beam, piece stone, wherein campshed is located at the upstream and downstream side of groynes, and linking beam is linked to be integral body with upstream and downstream side campshed; The downstream campshed is that solid matter is arranged at the dam body place, at the abutment place is to arrange at interval; The upstream side campshed is pressed the setting of 3.0m spacing; Evenly lay the piece stone of 1200mm thickness between the campshed of upstream and downstream side, piece stone diameter is not less than 300mm.
2. the as claimed in claim 1 compound groynes bank protection structure of stone-steel concrete campshed is characterized in that: dam length 50m, the long 38m of dam body wherein, the long 12m of abutment, dam width 5m.
3. the as claimed in claim 1 compound groynes bank protection structure of stone-steel concrete campshed is characterized in that: described steel concrete campshed is the stake of C35 reinforced concrete prefabricated board.
4. the as claimed in claim 1 compound groynes bank protection structure of stone-steel concrete campshed is characterized in that: described linking beam is a C30 steel concrete linking beam.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010101080772A CN101775788B (en) | 2010-02-10 | 2010-02-10 | Block stone-reinforced concrete piling composite groyne bank protection structure |
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| CN2010101080772A CN101775788B (en) | 2010-02-10 | 2010-02-10 | Block stone-reinforced concrete piling composite groyne bank protection structure |
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| CN101775788A CN101775788A (en) | 2010-07-14 |
| CN101775788B true CN101775788B (en) | 2011-04-13 |
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Families Citing this family (11)
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| CN101973638B (en) * | 2010-11-09 | 2011-11-09 | 河海大学 | Ecological percolating type water purification groin system |
| CN102220747B (en) * | 2011-02-23 | 2013-01-23 | 河海大学 | Combined type water-purifying spur dike group system for heavily polluted rivers |
| CN102154999B (en) * | 2011-04-11 | 2013-01-02 | 水利部交通运输部国家能源局南京水利科学研究院 | Diversion ecological spur dike |
| CN102587319A (en) * | 2012-03-10 | 2012-07-18 | 上海市农业科学院 | Ecological T-shaped submerged dike for river pollution treatment |
| CN103572735B (en) * | 2013-08-21 | 2016-08-17 | 浙江江南春建设集团有限公司 | Pell mell construction groynes construction is enclosed and cultivated in force tidal bore area |
| CN103526721B (en) * | 2013-10-29 | 2016-01-20 | 中国电建集团成都勘测设计研究院有限公司 | A kind of permeable pile foundation groynes |
| CN103898867A (en) * | 2014-03-13 | 2014-07-02 | 重庆交通大学 | Spur dike, for inland waterway improvement, not connected with embankment |
| CN104895007B (en) * | 2015-05-19 | 2017-03-29 | 浙江大学 | A kind of groynes in bivariate normal curved-surface shape |
| CN107881985A (en) * | 2017-11-28 | 2018-04-06 | 南京工业职业技术学院 | A kind of river course groynes structure and its construction method |
| CN109797704A (en) * | 2019-04-03 | 2019-05-24 | 交通运输部天津水运工程科学研究所 | A kind of mixed type ecology makes beach engineering |
| CN111379240B (en) * | 2020-02-18 | 2021-09-21 | 温州大学 | Pile type spur dike structure for construction in no-cutoff dry season and construction method thereof |
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| CN1044690A (en) * | 1990-02-07 | 1990-08-15 | 山西省交通厅 | The combined type geotechnique grid hydrotechnical construction of arranging net |
| CN101298776A (en) * | 2008-06-16 | 2008-11-05 | 胜利油田胜利工程设计咨询有限责任公司 | Pile plate composite structure |
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2010
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Patent Citations (3)
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|---|---|---|---|---|
| SU1070257A1 (en) * | 1982-12-24 | 1984-01-30 | Грузинский Ордена Ленина И Ордена Трудового Красного Знамени Политехнический Институт Им.В.И.Ленина | Through-going shore-protecting structure |
| CN1044690A (en) * | 1990-02-07 | 1990-08-15 | 山西省交通厅 | The combined type geotechnique grid hydrotechnical construction of arranging net |
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