CN102561260A - Water-permeable waterway improvement spur dike - Google Patents
Water-permeable waterway improvement spur dike Download PDFInfo
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- CN102561260A CN102561260A CN2012100130237A CN201210013023A CN102561260A CN 102561260 A CN102561260 A CN 102561260A CN 2012100130237 A CN2012100130237 A CN 2012100130237A CN 201210013023 A CN201210013023 A CN 201210013023A CN 102561260 A CN102561260 A CN 102561260A
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Abstract
The invention discloses a water-permeable waterway improvement spur dike, wherein one end of the spur dike is connected with a river bank, and the other end is extended into a riverbed; the spur dike is connected with the river bank in the plane to form a T shape; a dam body of the spur dike is constituted by a plurality groups of piled water-permeable frame units; each water-permeable frame unit is hollow in the middle; each group of the water-permeable frame units forms a water-permeable frame group; and a precast slab is arranged among each water-permeable frame group. By employing the piled water-permeable frames as the dam body, the invention makes full use of a slowdown and deposition promotion function of the water-permeable frame, thereby breaking a water flow structure flowing through the frame, obviously decreasing the flow rate on the bottom of the frame groups, depositing silt contained in the water, gradually silting and compacting the dam body, and forming a new bottom based on the new silt to gradually accumulate the silt. As the time goes on, the flow guiding function of the spur dike is gradually obvious. Therefore, the invention featured by high stability and good improvement effects is beneficial for draining flood in a flood period, consuming little expenses on later maintenance and decreasing engineering investment, and is convenient for promotion and application.
Description
Technical field
The present invention relates to a kind of river course building, be specifically related to a kind of permeable type dredging waterway groynes.
Background technology
Groynes is the fluid of choosing that stretches out from the bank, river course, constitutes T-shaped with water front in the plane, is a kind of hydraulic structure the most frequently used in waterway regulation, river regulation, the coast protection works.In river regulation and coast protection, groynes is avoided washing away with the protection riverbank through choosing stream, water conservancy diversion; In waterway regulation, groynes has narrow river bed, adjustment water flow structure and the effect of protecting seashore to avoid washing away.Specifically, the plan view of conventional groynes is as shown in Figure 1, and groynes is made up of abutment 1, dam body 2 and dam root 3 three parts, and abutment 1 stretches to the riverbed, and dam root 3 links to each other with the riverbank, and whole groynes is T-shaped in the plane.
The groynes kind is a lot, is divided into common groynes, bend-ended spur dike and T-shaped dam according to plane form; Can be divided into piece stone groynes, concrete groynes, jackstone groynes and combined type groynes according to construction material.The groynes dam body is generally the trapezoidal transverse face, and The turbulent river crashes its way through owing to abutment 1 place, and it is bigger to bear flowing pressure; And the spiral flow of abutment is walked around in generation; Strengthen the dam body width at abutment 1 place during general design, abutment 1 planar cloth is set to smooth curve, and it is more slow that abutment 1 stretches to the gradient in riverbed.
After the river course was provided with groynes, riverbed bundle was narrow, and during middle low water, the discharge area reduces, and flow velocity strengthens, and washes away original riverbed, thereby reaches the effect of " clearing sands with converging flow ", and then satisfy the requirement of waterway regulation.Groynes is in the later stage running, because dam body 2 water only, current produce vertical flow velocity at dam body 2 upper reaches, and current upper reaches on the dam form circulation, draws riverbed, brush dam body bottom, jeopardizes dam body safety after base of dam is unsettled; Near abutment 1, because flow rate of water flow is bigger, current form spiral flow near bed surface around the dam, near abutment 1, form scour hole, cause 1 stone slump of abutment, and then the destruction that causes whole groynes, and the maintenance works amount is big, and expense is high.In addition, during river course generation flood, because the resistance effect of groynes, the whole flood discharge capacity in river course is a greater impact, and the upper pond level harmony is obviously high, and river flood control pressure increases.Therefore, groynes " clearing sands with converging flow " also brings the later maintenance expense higher when satisfying waterway regulation, and the flood discharge capacity to the river course brings considerable influence simultaneously, crisis river flood control safety.
Summary of the invention
Goal of the invention: in order to overcome the deficiency that exists in the prior art, to caving in of occurring easily of conventional groynes, engineering quantity is big, influence problem such as flood passage, the present invention provides a kind of novel permeable dredging waterway groynes.
Technical scheme: to achieve these goals; A kind of permeable type dredging waterway groynes one end of the present invention links to each other with the riverbank; The other end stretches to the riverbed; Connect into T-shaped with the riverbank in the plane, the dam body of this groynes is piled up by some groups of water-permeable frame monomers and is constituted, and passes through empty in the middle of each water-permeable frame monomer; Every group of water-permeable frame monomer forms a water-permeable frame group, is provided with precast plate between each water-permeable frame group.
Described water-permeable frame monomer is made up of six ribs, four summits, the rib that said rib is processed for the rigidity rod-shaped material, and the rib that the rigidity rod-shaped material is processed connects fixing at each place, summit.
In order to make a plurality of water-permeable frames be convenient to install, described rigid material is that concrete presets bar, is convenient to the production assembly unit.
The underwater topography on-the-spot according to engineering construction ensures the length of every rib of water level adjustment water-permeable frame with opening the navigation or air flight, six rib equal lengths, and usually, the length of every rib is 0.8m～1.2m.
When the water-permeable frame monomer is piled up, intersect each other, increase the stability of dam structure, increase water-permeable frame at the abutment place and pile up quantity.
Beneficial effect: compared with prior art, the present invention has the following advantages:
(1) reduce construction investment: be piled into dam body through adopting the water-permeable frame monomer, current are during through water-permeable frame, and contained silt falls to becoming silted up in the water body, the dam body reality of can becoming silted up gradually; On the new real basis of becoming silted up, form new bottom again, shoal materials gradually, along with time lengthening, the guide functions of groynes becomes clear day by day, and significantly reduces engineering quantity, reduces construction investment;
(2) stability obviously improves: each plane of water-permeable frame monomer is a triangular structure, has structural stability, and when piling up, each water-permeable frame intersects each other, further improves stability; Simultaneously, because current can pass dam body, the vertical flow velocity in the dam body upper reaches obviously reduces, and the bottom at base of dam place is drawn brush and well contained; Abutment place flow-disturbing phenomenon is not obvious, and abutment downstream scour depth and scour hole scope obviously reduce, and towards the hole trend away from abutment is arranged, and it is stable to help dam body;
(3) renovating effect is better, and the later maintenance expense is few;
(4) during flood, be beneficial to flood and lead off.
Description of drawings
Fig. 1 is the plan view of existing conventional groynes;
Fig. 2 is the water-permeable frame monomer sketch map among the present invention;
Fig. 3 is a water-permeable frame colligation sketch map;
Fig. 4 is the precast plate sketch map;
Fig. 5 is permeable type groynes generalized section;
Fig. 6 is permeable type groynes elevational schematic view.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is done explanation further.
Shown in Fig. 1 to 6; A kind of permeable type dredging waterway groynes one end of the present invention links to each other with the riverbank, and the other end stretches to the riverbed, connects into T-shaped with the riverbank in the plane; The dam body of this groynes is piled up by some groups of water-permeable frame monomers 4 and is constituted, and passes through empty in the middle of each water-permeable frame monomer 4; Every group of water-permeable frame monomer 4 forms a water-permeable frame group, is provided with precast plate 5 between each water-permeable frame group.
In the present embodiment, water-permeable frame monomer 4 is made up of six ribs 41, four summits 42, the rib 41 that rib 41 is processed for the rigidity rod-shaped material, and the rib 41 that the rigidity rod-shaped material is processed connects fixing at each 42 places, summit.This rigid material is preferably concrete and presets bar, is convenient to the production assembly unit.The underwater topography on-the-spot according to engineering construction ensures the length of water level adjustment water-permeable frame monomer 4 every ribs 41 with opening the navigation or air flight, six rib 41 equal lengths, and the length of every rib 41 is generally 0.8m～1.2m.When water-permeable frame monomer 4 is piled up, carry out colligation, be about to rib 41 colligations that adjoining each other of per two water-permeable frame monomers 4 be close to together, thereby increase the stability of dam structure according to mode shown in Figure 3.Among Fig. 3, the indicated place of alphabetical A promptly is the binding position.Confirm the quantity of colligation according to the groynes bottom width, for example planning to build the groynes bottom wide is 10.8 meters, and every rib is 1.2 meters calculating, according to 17 water-permeable frame monomers 4 of mode racking seizing shown in Figure 3; As the frame foundation of the groynes bottom, in the construction works, around the groynes practical range, carry out coffering earlier, in axis of dam scope, the riverbed is advanced suitable row excavation; With the convenient water-permeable frame group of laying, utilize loop wheel machine that the good frame group of colligation is lifted, after laying the bottom; Lay plane precast plate 5 at the frame group top, as shown in Figure 4, pass through empty in the middle of this precast plate 5; Do not intercept current up and down, be beneficial to silt and fall to becoming silted up, and fix precast plate 5 and framework summit 42; After laying groynes under(-)chassis crowd, upwards lay frame group gradually, accomplish the construction of permeable type groynes according to same order.Permeable type groynes section configuration is trapezoidal shape, and the quantity of water-permeable frame monomer 4 is upwards reduced by bottom gradually, and is as shown in Figure 5.Permeable type groynes elevational schematic view is as shown in Figure 6, and letter b indication place is a regulated water stage among the figure, and letter C indication place is a design water level.
Groynes of the present invention is formed water-permeable frame group by a plurality of water-permeable frame monomers 4, owing to " the short silt of slowing down " effect of water-permeable frame, during current process water-permeable frame; Water flow structure is destroyed; The water-permeable frame group bottom velocity obviously reduces, and contained silt fall to become silted up in the water body, the dam body reality of can becoming silted up gradually; On the new real basis of becoming silted up, form new bottom again, shoal materials gradually, along with time lengthening, the guide functions of groynes becomes clear day by day.In addition, because dam body is formed by passing through empty framework, current can pass dam body, and the vertical flow velocity in the dam body upper reaches obviously reduces, and the bottom at base of dam place is drawn brush and well contained; Abutment place flow-disturbing phenomenon is not obvious, and abutment downstream scour depth and scour hole scope obviously reduce, and towards the hole trend away from abutment is arranged, and it is stable to help dam body.During river course generation great flood,, compare the flood discharge capacity that can add Tai Ho Road, be beneficial to the flood passage in river course with traditional groynes because groynes is permeable.
According to dredging waterway groynes model testing result, analysis can know that permeable type groynes of the present invention is compared with traditional groynes; Have the advantages that stability is high, renovating effect is good, after water year, the abutment scour hole degree of depth reduces 54% at the typical low water of experience; Scour hole moves downstream, away from abutment.Passing through empty frame group bottom has silt to fall to becoming silted up.
The above only is a preferred implementation of the present invention; Be noted that for those skilled in the art; Under the prerequisite that does not break away from the principle of the invention, can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.
Claims (4)
1. permeable type dredging waterway groynes; This groynes one end links to each other with the riverbank, and the other end stretches to the riverbed, connects into T-shaped with the riverbank in the plane; It is characterized in that: the dam body of this groynes is piled up formation by some groups of water-permeable frame monomers (4), passes through empty in the middle of each water-permeable frame monomer (4); Every group of water-permeable frame monomer (4) forms a water-permeable frame group, is provided with precast plate (5) between each water-permeable frame group.
2. permeable type dredging waterway groynes according to claim 1; It is characterized in that: described water-permeable frame monomer (4) is made up of six ribs (41), four summits (42); The rib that said rib (41) is processed for the rigidity rod-shaped material, the rib that the rigidity rod-shaped material is processed (41) is located to connect fixing in each summit (42).
3. permeable type dredging waterway groynes according to claim 2, it is characterized in that: described rib (41) presets bar for concrete.
4. according to each described permeable type dredging waterway groynes of claim 1 to 3, it is characterized in that: six ribs (41) equal length of said water-permeable frame monomer (4), the length of every rib (41) is 0.8m～1.2m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100130237A CN102561260A (en) | 2012-01-16 | 2012-01-16 | Water-permeable waterway improvement spur dike |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100130237A CN102561260A (en) | 2012-01-16 | 2012-01-16 | Water-permeable waterway improvement spur dike |
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| CN102561260A true CN102561260A (en) | 2012-07-11 |
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| CN2012100130237A Pending CN102561260A (en) | 2012-01-16 | 2012-01-16 | Water-permeable waterway improvement spur dike |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103195020A (en) * | 2013-05-03 | 2013-07-10 | 交通运输部天津水运工程科学研究所 | Submerged spur dike suitable for natural marginal bank form |
| CN104612103A (en) * | 2015-01-28 | 2015-05-13 | 吴龙华 | Tidal river self-cleaning ecological T-type water diversion/drawing method |
| CN107119626A (en) * | 2017-04-12 | 2017-09-01 | 重庆交通大学 | A kind of ecological, environmental protective permeable spur structure |
| CN109338987A (en) * | 2018-11-21 | 2019-02-15 | 交通运输部天津水运工程科学研究所 | Inland river eco-river control groynes group |
| CN113886922A (en) * | 2021-10-08 | 2022-01-04 | 河北省水利水电勘测设计研究院集团有限公司 | Spur dike group design method based on big data and field test |
Citations (4)
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| CN2361671Y (en) * | 1998-10-06 | 2000-02-02 | 水利部西北水利科学研究所 | Flood control bank protection four-face six-side permeable frame |
| CN2828138Y (en) * | 2005-07-11 | 2006-10-18 | 赵荣维 | Cut-off flood fighting foundation stone |
| CN1963028A (en) * | 2006-11-10 | 2007-05-16 | 河海大学 | Method for protecting bridge pier by using tetrahedral water-permeable frame group |
| CN102182160A (en) * | 2011-04-11 | 2011-09-14 | 水利部交通运输部国家能源局南京水利科学研究院 | Ecological spur dike of fish nest |
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2012
- 2012-01-16 CN CN2012100130237A patent/CN102561260A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2361671Y (en) * | 1998-10-06 | 2000-02-02 | 水利部西北水利科学研究所 | Flood control bank protection four-face six-side permeable frame |
| CN2828138Y (en) * | 2005-07-11 | 2006-10-18 | 赵荣维 | Cut-off flood fighting foundation stone |
| CN1963028A (en) * | 2006-11-10 | 2007-05-16 | 河海大学 | Method for protecting bridge pier by using tetrahedral water-permeable frame group |
| CN102182160A (en) * | 2011-04-11 | 2011-09-14 | 水利部交通运输部国家能源局南京水利科学研究院 | Ecological spur dike of fish nest |
Non-Patent Citations (1)
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| 南晓红等: "渭河吊桥段四面六边透水框架群试验研究", 《人民黄河》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103195020A (en) * | 2013-05-03 | 2013-07-10 | 交通运输部天津水运工程科学研究所 | Submerged spur dike suitable for natural marginal bank form |
| CN104612103A (en) * | 2015-01-28 | 2015-05-13 | 吴龙华 | Tidal river self-cleaning ecological T-type water diversion/drawing method |
| CN107119626A (en) * | 2017-04-12 | 2017-09-01 | 重庆交通大学 | A kind of ecological, environmental protective permeable spur structure |
| CN109338987A (en) * | 2018-11-21 | 2019-02-15 | 交通运输部天津水运工程科学研究所 | Inland river eco-river control groynes group |
| CN109338987B (en) * | 2018-11-21 | 2023-09-26 | 交通运输部天津水运工程科学研究所 | Inland river ecological renovation spur dike group |
| CN113886922A (en) * | 2021-10-08 | 2022-01-04 | 河北省水利水电勘测设计研究院集团有限公司 | Spur dike group design method based on big data and field test |
| CN113886922B (en) * | 2021-10-08 | 2022-04-15 | 河北省水利水电勘测设计研究院集团有限公司 | Spur dike group design method based on big data and field test |
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Application publication date: 20120711 |