CN103898867A - Spur dike, for inland waterway improvement, not connected with embankment - Google Patents
Spur dike, for inland waterway improvement, not connected with embankment Download PDFInfo
- Publication number
- CN103898867A CN103898867A CN201410092427.9A CN201410092427A CN103898867A CN 103898867 A CN103898867 A CN 103898867A CN 201410092427 A CN201410092427 A CN 201410092427A CN 103898867 A CN103898867 A CN 103898867A
- Authority
- CN
- China
- Prior art keywords
- dike
- groynes
- spur
- bank
- connect
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Revetment (AREA)
Abstract
The invention discloses a spur dike, for inland waterway improvement, not connected with any embankment. The spur dike not connected with any embankment is structurally characterized in that dike root sections of an ordinary spur dike are removed and the length of a dike body is correspondingly reduced. The spur dike not connected with any embankment is composed of two dike heads and a middle dike body section. It is suitable that the plane line type of the spur dike not connected with any embankment is a downward-angled spur dike or a downward-angled spur training dike. The positions of the dike heads can meet requirements for ordinary spur dikes. The width of a near-embankment notch section meets requirements for seabed stability, the longitudinal slope of a near-embankment notch section is properly smaller than that of a dike head of an ordinary spur dike so as to reduce the scouring depths of the dike heads, bottom protection measures need taking if the scouring depths are large, and other dike bodies are as same as dike bodies of the ordinary spur dike in structure. Test results put forwards after waterways of outlet swallow regions of a Xiang River Tongguan beach indicate that compared with a spur dike connected with embankments, the improvement effect is the same, but the length of the dike body is obviously reduced.
Description
Technical field
The invention belongs to hydraulic engineering field, relate in particular to and a kind ofly do not connect bank groynes for cruiseway regulation.
Background technology
Shoal is the main regulation object of waterway regulation, in the time carrying out inland river Shoal Regulation, often adopt the regulation method of groynes, fourth longitudinal dike bundle water water conservancy diversion, height of dam in middle water level between minimum navigable water stage, the essence of engineering is the final stage in flood landing, improve scouring capability, the assurance boat while reaching minimum navigable water stage is dark.
Groynes refers to the join building of the water and soil that is " T " font of one end and embankment, and code requirement dam body is longitudinally by certain slope and the riverbank formation dam root that joins.Water level is below abutment water level time, and current are returned groove clearing sands with converging flow; After water level flooded dam crest, the effect of bundle water weakens, still can impel silt in the alluvial of field, dam, reflux and spiral flow but can form in the upstream and downstream of dam root, if Huo Zhou beach, riverbank does not possess very strong scour resistance, in junction easily by current scour, dam body is separated with bank slope, not only make regulating structure ineffective, and may make bank slope large area collapse, destroying by rush of water in farmland, causes serious consequence.Therefore, must in dam root upstream and downstream certain limit, take shore protection measure.For dangerous section's fragment position in important river, hydraulic department is often disagreed with and is built groynes.
China extensively adopts groin structures in cruiseway regulation process, aspect the design and construction of groynes, is accumulating rich experience.But in the large-scale mountain stream such as Chuanjiang River and Xiang River, in the time building bundle water groynes on and section, shoal that beach face elevation is higher broader at point bar, in order to meet code requirement, dam root and riverbank are joined, the length of groynes is often longer, and damming works amount is huge; Or when Dang Aihangqian district head, the bundle water action length of one groynes is limited, often arrange that multiple tracks groynes forms groynes group, be subject to the impact of upstream groynes shielding scope, downstream groynes only stretches out the just available beam Zhai Qian district river width of dam body length of the shielding scope of its upstream dam body.
Summary of the invention
The object of the present invention is to provide and a kind ofly do not connect bank groynes for cruiseway regulation, be intended to address the problem: in the time building bundle water groynes on and section, shoal that beach face elevation is higher broader at point bar, in order to meet code requirement, dam root and riverbank are joined, the length of groynes is often longer, and damming works amount is huge; When Dang Aihangqian district head, the bundle water action length of one groynes is limited, often arrange that multiple tracks groynes forms groynes group, be subject to the impact of upstream groynes shielding scope, downstream groynes only stretches out the just available beam Zhai Qian district river width of dam body length of the shielding scope of its upstream dam body.
The present invention is achieved in that not connecing bank groynes is that the dam root section of general groynes is removed, and dam body contraction in length, is made up of two abutments and middle dam body section.
Further, do not connect the layout of bank groynes as follows:
Flat linearity: should be arranged as down and choose groynes, or under choose fourth longitudinal dike.
Effective length: abutment position is identical with general groynes requirement, projects forwardly to regulation line position, and the flow condition in low water major trough requires identical with general groynes, meets clearing sands with converging flow and navigation waterpower index request.
Offshore gap segments width: meet stabilization of river bed and determine, after requiring to build a dam, the value added of breach flow velocity is little, is less than the requirement of bed material initial velocity under middle low water discharge.
Further, the offshore abutment that does not connect bank groynes designs as follows:
Abutment longitudinal gradient can suitably delay in general head of groyne longitudinal gradient, to reduce abutment scour depth; Should take river bottom protection measure if scour depth is bigger than normal.
Further, all the other dam structures that do not connect bank groynes are with generally groynes is identical.
Further, the applicable elements that does not connect bank groynes is: the sandy riverbed that point bar is broad, beach face elevation is higher or shoal, sand-pebble riverbed, and the section of the slow recirculating zone of offshore wider range.
effect gathers
The present invention shows by the waterway regulation result of the test that Xiang River copper official beach is exported to shallow district, and the renovating effect of taking not connect bank groynes is with to connect bank groynes suitable, but dam body length has obviously and reduces.
Accompanying drawing explanation
Fig. 1 is the longitudinal plan of the common groynes that provides of the embodiment of the present invention;
Fig. 2 is the longitudinal plan that does not connect bank groynes that the embodiment of the present invention provides;
Fig. 3 is that the Xiang River copper official beach that the embodiment of the present invention provides exports shallow district renovation scheme layout plan;
Fig. 4 is the regulation discharge 760m that the embodiment of the present invention provides
3/ s(Xiangyin water level 22.2m) beach section velocity profile;
Fig. 5 is the average annual flow 2380m that the embodiment of the present invention provides
3/ s(Xiangyin water level 28m) beach section velocity profile;
Fig. 6 be the embodiment of the present invention provide connect bank and do not connect between bank groynes left bank breach waters Peak Flow Rate and change (m/s)
The specific embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
The present invention is achieved in that not connecing bank groynes is that the dam root section of general groynes is removed, and dam body contraction in length, is made up of two abutments and middle dam body section.
Further, do not connect the layout of bank groynes as follows:
Flat linearity: should be arranged as down and choose groynes, or under choose fourth longitudinal dike.
Effective length: abutment position is identical with general groynes requirement, projects forwardly to regulation line position, and the flow condition in low water major trough requires identical with general groynes, meets clearing sands with converging flow and navigation waterpower index request.
Offshore gap segments width: meet stabilization of river bed and determine, after requiring to build a dam, the value added of breach flow velocity is little, is less than the requirement of bed material initial velocity under middle low water discharge.
Further, the offshore abutment that does not connect bank groynes designs as follows:
Abutment longitudinal gradient can suitably delay in general head of groyne longitudinal gradient, to reduce abutment scour depth; Should take river bottom protection measure if scour depth is bigger than normal.
Further, all the other dam structures that do not connect bank groynes are with generally groynes is identical.
Further, the applicable elements that does not connect bank groynes is: sandy or shoal, sand-pebble riverbed, point bar is broad, beach face elevation is higher riverbed, and the section of the slow recirculating zone of offshore wider range.
The present invention is by the test of fixed bed gaza river work physical model, and the arrangement and the renovating effect thereof that Xiang River copper official beach are exported to the left bank groynes in shallow district carry out comparative study, model scale λ
l=240, λ
h=80.Research section import is apart from the about 15.8km of Changsha Beijing University bridge, and outlet is positioned at 900m place, water intake of power plant mouth downstream, Changsha, research section total length 19.5km.
It is comparatively wide shallow that copper official beach exports shallow district transverse shape, only 1m left and right of the maximum discrepancy in elevation in river bed.The less stable of test card open cut groove, therefore below the built groynes group in left bank, the groynes of position, left bank suitable for reading, trenching area, restraint narrow minor bed, to increase shallow district flow velocity.Abutment elevation is identical with historical regulation, still get 2.0m in design water level, Width of Regulation Line 390m.
For increasing trenching area flow velocity, if arrange the common bank groynes that connects together in left bank, groynes length will reach 460m, not connect bank groynes if be arranged as, and its layout is as arranged as Fig. 2 in Fig. 3, vertical section, and groynes contraction in length is to about 330m.
Do not connect bank groynes scheme at regulation discharge 760m
3/ s, average annual flow Q=2380m
3the velocity flow profile of/s is shown in Fig. 4, Fig. 5.=760m
3under/s flow, abutment surfaces, it is close that what riverbed Shu Zhaihou trenching area flow velocity and 460m were long connect bank groynes scheme, copper official beach and to export between shallow district section riverbed substantially close along journey flow velocity size, in grooving, epimere flow velocity is approximately 1.5 times of bed material initial velocity, after being beneficial to flood, low water boat groove washes away, and near abutment, fluidised form is smooth-going.
Under middle flood discharge, dam body floods, near the abutment of the middle of the river, choose stream a little less than, but the breach flow between offshore abutment and riverbank, between 226#～240# section, this breach and waters, downstream change in flow thereof are shown in Fig. 6.Result of the test shows, at average annual flow Q=2380m
3/ s, average flood discharge 7850m
3under/s, do not connect bank groynes scheme gap regions flow velocity only than distinguishing about 0.1～0.2m/s without scheme, but the long velocity flow profile that generally connects bank groynes scheme of major trough and scheme 460m approaches.At Q=2380m
3/ s, 7850m
3indentation, there beach face bed material D when/s
50the initial velocity of bed material is respectively 0.73m/s, 1.22m/s, shows that breach only only has a small amount of sediment incipient motion under flood discharge, and riverbed is basicly stable.
Above-mentioned result of the test shows, the renovating effect of taking not connect bank groynes is with to connect bank groynes suitable, but dam body length has obviously and reduce, and it is feasible taking not connect bank groynes scheme.
By reference to the accompanying drawings the specific embodiment of the present invention is described although above-mentioned; but not limiting the scope of the invention; one of ordinary skill in the art should be understood that; on the basis of technical scheme of the present invention, those skilled in the art do not need to pay various modifications that performing creative labour can make or distortion still within protection scope of the present invention.
Claims (4)
- For cruiseway regulation do not connect a bank groynes, it is characterized in that, the described bank groynes that do not connect, removes the dam root section of groynes, dam body contraction in length, is made up of two abutments and middle dam body section.
- 2. the bank groynes that do not connect as claimed in claim 1, is characterized in that, the described layout that does not connect bank groynes is as follows:Flat linearity: should be arranged as down and choose groynes, or under choose fourth longitudinal dike;Effective length: abutment position projects forwardly to regulation line position, the flow condition in low water major trough meets clearing sands with converging flow and navigation waterpower index request;Offshore gap segments width: meet stabilization of river bed and determine, after requiring to build a dam, the value added of breach flow velocity is little, is less than bed material initial velocity under middle low water discharge.
- 3. the bank groynes that do not connect as claimed in claim 1, is characterized in that, the described offshore abutment design that does not connect bank groynes is as follows:Abutment longitudinal gradient is slow, to reduce abutment scour depth; Take river bottom protection measure if scour depth is bigger than normal.
- 4. the bank groynes that do not connect as claimed in claim 1, is characterized in that, the described applicable elements that does not connect bank groynes is: the sandy or shoal, sand-pebble riverbed that point bar is broad, beach face elevation is higher, and offshore is slow, the section of recirculating zone wider range.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410092427.9A CN103898867A (en) | 2014-03-13 | 2014-03-13 | Spur dike, for inland waterway improvement, not connected with embankment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410092427.9A CN103898867A (en) | 2014-03-13 | 2014-03-13 | Spur dike, for inland waterway improvement, not connected with embankment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103898867A true CN103898867A (en) | 2014-07-02 |
Family
ID=50990422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410092427.9A Pending CN103898867A (en) | 2014-03-13 | 2014-03-13 | Spur dike, for inland waterway improvement, not connected with embankment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103898867A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104153320A (en) * | 2014-07-24 | 2014-11-19 | 重庆交通大学 | Method for regulating pebble shoal in intensified low-flow branching layout |
| CN106120640A (en) * | 2016-06-29 | 2016-11-16 | 上海朗兆公路铁路养护工程技术有限公司 | A kind of construction method preventing and treating mountain stream bridge foundation washout |
| CN107330228A (en) * | 2017-08-01 | 2017-11-07 | 交通运输部天津水运工程科学研究所 | A kind of cruiseway regulating structure major dimension determines method |
| CN108442310A (en) * | 2018-03-27 | 2018-08-24 | 桑德生态科技有限公司 | A kind of city inland river beam water erosion and deposition method |
| CN108612042A (en) * | 2018-07-05 | 2018-10-02 | 交通运输部天津水运工程科学研究所 | Local overcurrent ecotype groynes |
| 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 |
| 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 |
| CN109933930A (en) * | 2019-03-21 | 2019-06-25 | 交通运输部天津水运工程科学研究所 | A kind of cruiseway groynes river bottom protection range determining method |
| CN117216831A (en) * | 2023-08-18 | 2023-12-12 | 中铁交通投资集团有限公司 | Highway water damage protection design method based on river bend water sand regulation and control |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU927891A1 (en) * | 1979-12-17 | 1982-05-15 | Университет дружбы народов им.Патриса Лумумбы | Method of erecting an underwater earth-filled shore-reinforcing structure |
| SU1728342A1 (en) * | 1990-02-13 | 1992-04-23 | Якутский Отдел Сибирского Научно-Исследовательского Института Гидротехники И Мелиорации | Method for ice jam forming |
| CN101713178A (en) * | 2009-09-29 | 2010-05-26 | 黄河水利委员会黄河水利科学研究院 | Method for creating three-stage flow passage of meandering riverway in lower Yellow River |
| CN101775788A (en) * | 2010-02-10 | 2010-07-14 | 王军 | Block stone-reinforced concrete piling composite groyne bank protection structure |
| CN102219304A (en) * | 2011-02-23 | 2011-10-19 | 河海大学 | Method for ecologically improving water quality of water delivery type lake |
-
2014
- 2014-03-13 CN CN201410092427.9A patent/CN103898867A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU927891A1 (en) * | 1979-12-17 | 1982-05-15 | Университет дружбы народов им.Патриса Лумумбы | Method of erecting an underwater earth-filled shore-reinforcing structure |
| SU1728342A1 (en) * | 1990-02-13 | 1992-04-23 | Якутский Отдел Сибирского Научно-Исследовательского Института Гидротехники И Мелиорации | Method for ice jam forming |
| CN101713178A (en) * | 2009-09-29 | 2010-05-26 | 黄河水利委员会黄河水利科学研究院 | Method for creating three-stage flow passage of meandering riverway in lower Yellow River |
| CN101775788A (en) * | 2010-02-10 | 2010-07-14 | 王军 | Block stone-reinforced concrete piling composite groyne bank protection structure |
| CN102219304A (en) * | 2011-02-23 | 2011-10-19 | 河海大学 | Method for ecologically improving water quality of water delivery type lake |
Non-Patent Citations (1)
| Title |
|---|
| 同济大学: "《注册土木工程师（港口与航道工程）专业考试复习教程 》", 31 December 2006, 北京：中国建筑工业出版社 * |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104153320A (en) * | 2014-07-24 | 2014-11-19 | 重庆交通大学 | Method for regulating pebble shoal in intensified low-flow branching layout |
| CN106120640A (en) * | 2016-06-29 | 2016-11-16 | 上海朗兆公路铁路养护工程技术有限公司 | A kind of construction method preventing and treating mountain stream bridge foundation washout |
| CN107330228B (en) * | 2017-08-01 | 2020-07-17 | 交通运输部天津水运工程科学研究所 | Method for determining main size of inland waterway renovation building |
| CN107330228A (en) * | 2017-08-01 | 2017-11-07 | 交通运输部天津水运工程科学研究所 | A kind of cruiseway regulating structure major dimension determines method |
| CN108442310B (en) * | 2018-03-27 | 2020-08-25 | 桑德生态科技有限公司 | Urban inland river water sludging method |
| CN108442310A (en) * | 2018-03-27 | 2018-08-24 | 桑德生态科技有限公司 | A kind of city inland river beam water erosion and deposition method |
| CN108612042A (en) * | 2018-07-05 | 2018-10-02 | 交通运输部天津水运工程科学研究所 | Local overcurrent ecotype groynes |
| 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 |
| CN109933930A (en) * | 2019-03-21 | 2019-06-25 | 交通运输部天津水运工程科学研究所 | A kind of cruiseway groynes river bottom protection range determining method |
| CN109933930B (en) * | 2019-03-21 | 2022-11-04 | 交通运输部天津水运工程科学研究所 | Method for determining bottom protection range of spur dike of inland waterway |
| 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 |
| CN117216831A (en) * | 2023-08-18 | 2023-12-12 | 中铁交通投资集团有限公司 | Highway water damage protection design method based on river bend water sand regulation and control |
| CN117216831B (en) * | 2023-08-18 | 2024-06-07 | 中铁交通投资集团有限公司 | Highway water damage protection design method based on river bend water sand regulation and control |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103898867A (en) | Spur dike, for inland waterway improvement, not connected with embankment | |
| CN104762938B (en) | Diversion channel closure method | |
| CN103882838A (en) | Sediment releasing method for water intake of low-head river channel pivotal power station | |
| CN100347377C (en) | Mould bag line curtain and method for preventing falldown of river bank | |
| CN204825802U (en) | Compound line type overflow weir | |
| CN102561260A (en) | Water-permeable waterway improvement spur dike | |
| CN106013009B (en) | A kind of more counter-slope formula stiling basins | |
| CN105064291A (en) | Step sand-blocking dam ecosystem for reservoir desilting and sand prevention | |
| CN204919467U (en) | A separate and flow dyke that is used for approach channel on offshore lock | |
| CN204626327U (en) | Groynes group under the condition of deep water low beach protects beach structure | |
| CN104863097A (en) | Flexible sand stop curtain structure | |
| CN104264626A (en) | Structure for controlling and guiding river regime and stabilizing river mainstream | |
| CN204849678U (en) | Novel butyl dam structure | |
| CN106149622A (en) | Forfend flow guide system and the method for mud-rock flow | |
| CN204097961U (en) | The structure of river gesture and poised stream main flow is led in a kind of control | |
| Wang et al. | Critical threshold of periodic point bar scour and sediment body transport path in tidal reaches: A case study of Fujiangsha reach, Yangtze River | |
| CN100443666C (en) | Oblique weir device on the river | |
| CN205171449U (en) | Novel formula drop dissipation structure directly falls | |
| CN2905895Y (en) | Slant dam device of river | |
| Dou et al. | Analysis on changes of current, sediment and riverbed evolution in Yangtze Estuary for the past 20 years | |
| CN203977357U (en) | Barge formula moves training dyke | |
| CN204898603U (en) | Novel water conservancy diversion dyke structure | |
| CN104047264B (en) | Barge formula moves training dyke and using method thereof | |
| CN211285526U (en) | River crossing pipeline anti-elutriation protection device | |
| CN203890953U (en) | Spur dike structure located on pebble sand conveying belt |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140702 |