CN110700208A - Wave urban landscape lake overflow weir structure - Google Patents
Wave urban landscape lake overflow weir structure Download PDFInfo
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- CN110700208A CN110700208A CN201910987556.7A CN201910987556A CN110700208A CN 110700208 A CN110700208 A CN 110700208A CN 201910987556 A CN201910987556 A CN 201910987556A CN 110700208 A CN110700208 A CN 110700208A
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- weir
- overflow
- lake
- arc line
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- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 8
- 230000005484 gravity Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 14
- 238000010276 construction Methods 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000009991 scouring Methods 0.000 abstract description 4
- 241001365789 Oenanthe crocata Species 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 241000251468 Actinopterygii Species 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000010485 coping Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000001617 migratory effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B8/00—Details of barrages or weirs ; Energy dissipating devices carried by lock or dry-dock gates
- E02B8/06—Spillways; Devices for dissipation of energy, e.g. for reducing eddies also for lock or dry-dock gates
Abstract
The invention discloses a wave-shaped urban landscape lake overflow weir structure, wherein a weir body is wave-shaped, a weir crest line type consists of a middle arc line section and two end arc line sections, the radius of the middle arc line section is larger, the two arc line sections are tangent, the radius of the arc lines on the two side edges is smaller, the circle center is positioned at the upstream and is tangent with the lake dikes on the two sides. The circle centers of the arcs positioned on the two sides are arranged on the upstream, so that when flood is discharged, the water flow direction converges to the circle center of the downstream, and the downstream bank slope is prevented from being washed away. The overflow weir provided by the invention is formed by several tangent circular arcs, the length of the overflow section at the front edge of the weir top is far longer than the length of the straight line at two end points, the overflow weir is of a labyrinth weir structure, larger flood can be discharged under the condition of the same overflow width and the same water head, and the functions of controlling the water level of the lake to rise and avoiding flooding or scouring on two banks are achieved. The whole weir body structure gives consideration to flood discharge and traffic functions, and has the advantages of beautiful appearance, simple construction, convenient management and reliable operation.
Description
Technical Field
The invention relates to the technical field of hydraulic and hydroelectric engineering, in particular to a wave-shaped urban landscape lake overflow weir structure.
Background
In recent years, along with the construction of sponge cities, a large number of landscape lakes emerge on urban river channels, and because the dual requirements of lake formation of water storage, landscape construction, smooth flood running in a flood season and avoidance of flooding are considered, common overflow weirs of the urban landscape lakes are flap dams, rubber dams and linear weirs. The weirs really play a role in safely storing water into lakes and discharging flood, but the weirs are monotonous in shape and poor in landscape effect, are not integrated with the constructed beautiful lakes, have the problems that the flap dam is often blocked by sundries, the rubber dam is aged and the like in the flood season, and bring inconvenience to operation management.
Patent documents related to landscape lake overflow weirs, such as utility model patent 201821415969.5 applied by university of Dalian, disclose a secondary drop overflow dam with landscape effect, at least comprising a dam body, wherein the upper part of the dam body is provided with a landscape stone coping, the outer side of the dam body is provided with a secondary drop platform and a stilling pool, a reinforced concrete support column is arranged between the secondary drop platform and the stilling pool at the outer side of the dam body, and a plurality of reinforced concrete support columns are uniformly distributed along the length direction of the dam body; the outer edge of the secondary drop platform is of an arc-shaped structure; a plurality of arc-shaped structures are uniformly distributed along the length direction of the dam body; paving a pebble layer A in the secondary water drop platform; a pebble layer B is arranged in the absorption basin. According to the scheme, landscape stones are pressed to form the overflow weir crest of the overflow dam, a pebble layer is laid inside the absorption basin, and the pebble layer plays a role in reducing water flow scouring and has a landscape decoration effect. This scheme has set up the second grade drop platform, can form the effect of an annular cascade when rivers fall, has strengthened the view aesthetic property.
For example, the invention patent 201810974724.4 applied by the institute of hydroelectricity survey design in Zhejiang province discloses an ecological landscape barrage and a construction method thereof, wherein the ecological landscape barrage comprises a barrage and various levels of drop waters, the barrage is a water retaining building, the downstream of the barrage is provided with a zigzag-shaped multistage serial drop water next to the barrage so as to form a multistage artificial waterfall with variable drop height, drop ponds are respectively arranged between the barrage and the first level of drop water and between the drop waters so as to dissipate energy, and simultaneously, the cascaded multistage drop water is utilized to arrange a fishway or directly form a fishladder to be used as a biological migration channel; all the drop ponds are used as landscape ponds; in addition, for the weir dam which does not overflow in the dry season, the middle part of the weir dam is provided with an ecological flow discharge hole which is also used as a fish passing hole. The scheme solves the problems of dam crossing of migratory organisms such as fishes and the like and local cutoff of the downstream of the weir dam, is favorable for protecting the biological diversity of rivers, improves the landscape effects of the flat surface and the vertical surface and the overall landscape level of the weir dam, ensures that the weir dam has the functions of convenience for people and hydrophilicity, and has better social, economic and comprehensive benefits.
However, the above prior art schemes do not consider the problem of safe flood discharge in flood season, cannot well control the water level of the lake to rise, are difficult to avoid flooding or scouring of both banks by water flow in flood season, and also fail to consider traffic. Therefore, there is a need for improvement thereof.
Disclosure of Invention
The invention aims to provide a novel urban landscape lake overflow weir structure which is novel in structure, attractive in appearance and capable of meeting the requirement of flood safety drainage in flood season.
The technical scheme of the invention is as follows:
the wavy urban landscape lake overflow weir structure provided by the invention is as follows: the weir body is wavy, the weir crest line type is composed of a middle arc line section and two end arc line sections, the radius of the middle arc line is large, every two arc lines are tangent, the radius of the arc lines on the two side edges is small, the circle center is located at the upstream, and the circle center is tangent with the lakeways on the two sides. The circle centers of the arcs positioned on the two sides are arranged on the upstream, so that when flood is discharged, the water flow direction converges to the circle center of the downstream, and the downstream bank slope is prevented from being washed away.
The overflow weir is a gravity dam, and a Baipace bridge is arranged above the weir crest and is used for visitors on both sides in the non-flood period to pass through. And a protective flat is connected behind the weir and plays a role in protecting the riverbed from being washed.
The wave-shaped urban landscape lake weir body structure provided by the invention has the advantages that the overflow weir is formed by a plurality of sections of tangent arcs, the length of the overflow section at the front edge of the weir crest is far longer than the length of the straight line at two end points, the structure is a labyrinth weir structure, larger flood can be discharged under the conditions of the same overflow width and the same water head, and the functions of controlling the water level of the lake to rise and avoiding flooding or scouring on two banks are achieved. The whole weir body structure gives consideration to flood discharge and traffic functions, and has the advantages of beautiful appearance, simple construction, convenient management and reliable operation.
Drawings
FIG. 1 is a plan view of a wavy landscape lake weir structure of the present invention;
fig. 2 is a sectional view taken along line a-a in fig. 1.
Description of reference numerals: 1-overflow weir, 2-Baipace bridge, 3-lake levee, 4-weir crest and 5-apron.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, fig. 1 is a schematic plan view of a weir of the present invention. As can be seen from the figure, the weir body of the whole overflow weir 1 is wave-shaped when viewed on the plane (top view), the line type of the weir crest 4 consists of a middle arc line segment and two end arc line segments, the radius of the middle arc line segment is larger, the two arc line segments are tangent, the radius of the arc lines on the two side edges is smaller, the circle center is positioned at the upstream and is tangent with the lake banks 3 on the two sides. The circle centers of the arcs positioned on the two sides are arranged on the upstream, so that when flood is discharged, the water flow direction converges to the circle center of the downstream, and the downstream bank slope is prevented from being washed away.
As can be seen from the cross-sectional view shown in fig. 2, the overflow weir 1 is a gravity dam, and a Baipace bridge 2 is arranged above the weir crest 4 for the passage of people on both sides in the non-flood period. The apron 5 is connected behind the weir, and the apron 5 plays a role in protecting the riverbed from being washed away.
The weir body structure is successfully applied to the engineering of Guizhou province. The lake is located in a core area of a Guian New zone, namely a Guian ecological New City, the lake weir plane is formed by a plurality of tangent circular arcs, the radius of the front edge of the weir top 4 of the overflow weir 1 with the middle three circular arcs is 16m, and the radius of the circular arcs on the two side edges is 8 m. The arc length of the weir top 4 of the overflow weir 1 is about 86m, and the two end points of the overflow weir are straight and 70m long. The maximum lower discharge flow is 146m3And s. The weir crest 4 is provided with a Baipace bridge 2 for the passage of the tourists on both sides in the non-flood period.
The application results show that: after the Guian New district is built in the dragon lake, the weir body structure and the surrounding landscape are well integrated, and the weir is novel in shape, attractive in appearance, simple and easy to construct, convenient to manage and good in popularization prospect.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (2)
1. The utility model provides a wave city view lake overflow weir structure, includes overflow weir (1), its characterized in that: the weir body of the overflow weir (1) is wavy on the plane, the line type of the weir crest (4) consists of a middle arc line segment and two end arc line segments, the radius of the middle arc line segment is large, the two arc line segments are tangent, the radius of the arc lines on the two sides is small, the circle center is positioned at the upstream and is tangent with the lake dikes (3) on the two sides; the centers of the arcs positioned on the two sides are arranged at the upstream.
2. The wavy urban landscape lake weir structure of claim 1, wherein: the overflow weir (1) is a gravity dam, and the top of the weir (4) is provided with a stepladder (2); a apron (5) is connected behind the weir.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910987556.7A CN110700208A (en) | 2019-10-17 | 2019-10-17 | Wave urban landscape lake overflow weir structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910987556.7A CN110700208A (en) | 2019-10-17 | 2019-10-17 | Wave urban landscape lake overflow weir structure |
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| Publication Number | Publication Date |
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| CN110700208A true CN110700208A (en) | 2020-01-17 |
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| CN201910987556.7A Pending CN110700208A (en) | 2019-10-17 | 2019-10-17 | Wave urban landscape lake overflow weir structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113354095A (en) * | 2021-06-28 | 2021-09-07 | 陕西地建土地工程技术研究院有限责任公司 | Ecological vertical flow constructed wetland system and sewage treatment method based on same |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11336053A (en) * | 1998-05-28 | 1999-12-07 | Natl Res Inst Of Agricultural Engineering | Labyrinthine fixed weir unit |
| JP2006052605A (en) * | 2004-08-16 | 2006-02-23 | Yutaka Fukushi | Multi-natural type labyrinth fixed dam |
| KR20080036574A (en) * | 2008-04-08 | 2008-04-28 | 이승오 | Undulating crest type labyrinth weir |
| CN106836147A (en) * | 2017-03-08 | 2017-06-13 | 中国电建集团华东勘测设计研究院有限公司 | A kind of landscape weir and its construction method for having hydrophilic interaction concurrently |
| CN108560500A (en) * | 2018-04-10 | 2018-09-21 | 李贺敏 | A kind of sluice water blocking building structure for going sightseeing |
| CN108625345A (en) * | 2018-03-30 | 2018-10-09 | 深圳春沐源控股有限公司 | A kind of weir structure and its construction method |
| CN109778802A (en) * | 2019-03-21 | 2019-05-21 | 中水北方勘测设计研究有限责任公司 | Narrow Valleys, deep tail water, super large discharge per unit width curve gravity dam flood-discharge energy-dissipating structure |
-
2019
- 2019-10-17 CN CN201910987556.7A patent/CN110700208A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11336053A (en) * | 1998-05-28 | 1999-12-07 | Natl Res Inst Of Agricultural Engineering | Labyrinthine fixed weir unit |
| JP2006052605A (en) * | 2004-08-16 | 2006-02-23 | Yutaka Fukushi | Multi-natural type labyrinth fixed dam |
| KR20080036574A (en) * | 2008-04-08 | 2008-04-28 | 이승오 | Undulating crest type labyrinth weir |
| CN106836147A (en) * | 2017-03-08 | 2017-06-13 | 中国电建集团华东勘测设计研究院有限公司 | A kind of landscape weir and its construction method for having hydrophilic interaction concurrently |
| CN108625345A (en) * | 2018-03-30 | 2018-10-09 | 深圳春沐源控股有限公司 | A kind of weir structure and its construction method |
| CN108560500A (en) * | 2018-04-10 | 2018-09-21 | 李贺敏 | A kind of sluice water blocking building structure for going sightseeing |
| CN109778802A (en) * | 2019-03-21 | 2019-05-21 | 中水北方勘测设计研究有限责任公司 | Narrow Valleys, deep tail water, super large discharge per unit width curve gravity dam flood-discharge energy-dissipating structure |
Non-Patent Citations (1)
| Title |
|---|
| 刘炳林: "宁国市白云禅寺人工湖景观坝设计与应用", 建筑设计开发, vol. 44, no. 16, 31 August 2017 (2017-08-31), pages 35 - 36 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113354095A (en) * | 2021-06-28 | 2021-09-07 | 陕西地建土地工程技术研究院有限责任公司 | Ecological vertical flow constructed wetland system and sewage treatment method based on same |
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