CN105625256A - Arranging structure for flow drainage weir of ditch - Google Patents
Arranging structure for flow drainage weir of ditch Download PDFInfo
- Publication number
- CN105625256A CN105625256A CN201610162675.5A CN201610162675A CN105625256A CN 105625256 A CN105625256 A CN 105625256A CN 201610162675 A CN201610162675 A CN 201610162675A CN 105625256 A CN105625256 A CN 105625256A
- Authority
- CN
- China
- Prior art keywords
- weir
- section
- drainage weir
- ditch
- groove section
- 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.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/02—Stream regulation, e.g. breaking up subaqueous rock, cleaning the beds of waterways, directing the water flow
-
- 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
-
- 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
- Y02A10/30—Flood prevention; Flood or storm water management, e.g. using flood barriers
Abstract
The invention discloses an arranging structure for a flow drainage weir of a ditch. The flow drainage weir is composed of an inlet weir top section and a drainage groove section; the longitudinal center line of the flow drainage weir is a straight line, and the included angle formed by the longitudinal center line and the opposite direction of water flow in the ditch is an acute angle; the comprehensive longitudinal slope ratio of the bottom of the drainage groove section is smaller than or equal to 1:2; the drainage groove section is longitudinally provided with a plurality of energy dissipation steps; the tail part of each energy dissipation step is provided with an oblique energy dissipation bank; the tail end of the drainage groove section is provided with a force dissipation tank; the length of the sidewall, positioned at the upstream side, of the force dissipation tank is smaller than that of the sidewall at the downstream side; the tail part of the force dissipation tank is provided with a flip bucket which is a circular arc structure; the flip bucket is horizontally and obliquely arranged towards the upstream side; the top of the flip bucket is connected with a slope section of which the slope ratio is 1:10, and the slope section is engaged with a river way. The arranging structure disclosed by the invention has the advantages that the flow drainage weir of the ditch is designed into an integral linear section; the flow drainage weir is arranged at a gap of the ditch in a way that the longitudinal center line of the flow drainage weir forms an acute angle with the opposite direction of the water flow in the ditch, so the construction capacity and the construction cost of the flow drainage weir of the ditch are greatly reduced.
Description
Technical field
The present invention relates to channel earial drainage weir, especially relate to the arrangement on channel earial drainage weir.
Background technology
At present, when adopting without gate broad crested weir as the earial drainage weir of channel, mainly with the inlet section of channel breach as channel earial drainage weir. Above-mentioned channel earial drainage weir decoration form and structure as shown in Figure 1, 2, let out groove section 1.1 by import, arc transition lets out groove section 1.2, straight line is let out groove section 1.3 and formed; After letting out groove, current directly flow to into river course 1.4 to drop. Water in a canal enters earial drainage weir (as shown in Figure 1) to let out the direction of groove section medullary ray approximately perpendicular to import and let out groove section 1.1 left side from import when groove section 1.1 is let out in import, therefore concentrated flow on the right of groove section 1.1 can be let out in import, let out groove section 1.2 current in arc transition to turn left to cause again with little radius wide-angle and concentrate further letting out current on the right of groove, cause that to let out trough inner water flow distribution extremely uneven, after letting out groove, current directly flow to drop and wash away riverbed into river course 1.4, are threatened safely in riverbed and access bridge bridge pier.
Summary of the invention
The object of the invention is to provide the arrangement on a kind of channel earial drainage weir.
For achieving the above object, the present invention takes following technical proposals:
The arrangement on channel earial drainage weir of the present invention, comprises the earial drainage weir being arranged in channel indentation, there; Described earial drainage weir is by import weir crest section and lets out groove section and forms; The longitudinal cenlerline on described earial drainage weir is straight line, and the angle between current opposite direction in the longitudinal cenlerline on earial drainage weir and channel is acute angle, lets out comprehensive longitudinal slope bottom groove section and compares 1:2; Letting out groove section and be vertically arranged with multistage energy dissipating step, the afterbody of every grade of energy dissipating step is provided with oblique energy dissipating bank, and oblique energy dissipating bank is mutually parallel with letting out wall top, groove section both sides line; Let out groove section end and it is provided with stilling basin, the limit wall length that described stilling basin is positioned at upstream side is less than the length of downstream side wall, what the afterbody of stilling basin was provided with arc structure chooses bank, described bank of choosing is obliquely installed to upstream side level, and the Kan Ding choosing bank is connected with slope and is connected with river course than the slope section for 1:10.
The limit wall that described import weir crest section is positioned at upstream side is arc section or straight-line segment, when being tangentially connected mutually with the limit wall of channel for described arc section.
The invention has the advantages that and channel earial drainage weir is arranged to overall straight-line segment, and become acute angle to be arranged in channel indentation, there with the current opposite direction in channel the longitudinal cenlerline on earial drainage weir, therefore greatly reduce construction volume and the executive cost on channel earial drainage weir. Let out groove section and it is vertically arranged with multistage energy dissipating step, and oblique energy dissipating bank is all set at the afterbody of every grade of energy dissipating step, part current guiding can be let out again along journey energy dissipating the non-mainstream side of groove, force to let out trough inner water stream and be uniformly distributed. Let out groove section end and arrange stilling basin, what the afterbody of stilling basin arranged arc structure chooses bank, Kan Ding is connected with slope and is connected with river course than the slope section for 1:10, ensure that the flow energy that dissipates further, and current choose that nose bank is streamed to choose enters river course when making little flow, avoid current to wash in a pan brush nose camphyl plinth, meet the requirement of channel earial drainage weir safe operation. The limit wall that import weir crest section is positioned at upstream side is set to arc section, and this arc section is tangentially connected mutually with the limit wall of channel, therefore when letdown flow is bigger, can improve import flow-shape, reduces the uneven distribution of import weir crest section current. The limit wall length that stilling basin is positioned at upstream side is arranged to be less than the length of downstream side wall, reaches and adjusts transversal inhomogeneity current object further and strengthen the effect of energy dissipation of stilling basin.
Accompanying drawing explanation
Fig. 1 is the floor map that existing channel earial drainage weir is arranged in channel indentation, there.
Fig. 2 is longitudinal section structure schematic diagram on channel earial drainage weir in Fig. 1.
Fig. 3 is the floor map that the present invention is arranged in channel indentation, there.
Fig. 4 is longitudinal section structure schematic diagram on channel earial drainage weir in Fig. 3.
Embodiment
As shown in Figure 3,4, the arrangement on channel earial drainage weir of the present invention, comprises the earial drainage weir being arranged in channel 1 indentation, there; Described earial drainage weir be pure concrete structure without gate broad crested weir, by import weir crest section 2 with let out groove section 3 and form; It is arc section 4 that import weir crest section 2 is positioned at the limit wall of upstream side, and described arc section 4 is tangentially connected mutually with the limit wall of channel 1; The longitudinal cenlerline 5 on earial drainage weir is straight line, and the angle a1 between current opposite direction in the longitudinal cenlerline 5 on earial drainage weir and channel 1 is 64 �� of acute angles; The bottom letting out groove section 3 comprehensively longitudinal slope ratio be not more than 1:2; Letting out groove section 3 and be vertically arranged with level Four energy dissipating step 6, the afterbody of every grade of energy dissipating step 6 is provided with oblique energy dissipating bank 7, and oblique energy dissipating bank 7 is mutually parallel with letting out wall top, groove section 3 both sides line; Height and the width of oblique energy dissipating bank 7 are 0.2 meter; Oblique energy dissipating bank 7 is partial to upstream side wall with longitudinal cenlerline 5 one-tenth 62.718 �� of oblique angle a2 on stream weir in the plane; Let out groove section 3 end and it is provided with stilling basin 8, the limit wall length that described stilling basin 8 is positioned at upstream side is less than the length of downstream side wall, the afterbody of stilling basin 8 is provided with that radius R is 5 meters, angle a3 be 16.26 �� arc structure choose bank 9, described bank 9 of choosing is obliquely installed to upstream side level, and the Kan Ding choosing bank 9 is connected with slope and is connected with river course 11 than the slope section 10 for 1:10.
Claims (2)
1. the arrangement on channel earial drainage weir, comprises the earial drainage weir being arranged in channel indentation, there; Described earial drainage weir is by import weir crest section and lets out groove section and forms; It is characterized in that: the longitudinal cenlerline on described earial drainage weir is straight line, the angle between current opposite direction in the longitudinal cenlerline on earial drainage weir and channel is acute angle, lets out comprehensive longitudinal slope bottom groove section and compares 1:2; Letting out groove section and be vertically arranged with multistage energy dissipating step, the afterbody of every grade of energy dissipating step is provided with oblique energy dissipating bank, and oblique energy dissipating bank is mutually parallel with letting out wall top, groove section both sides line; Let out groove section end and it is provided with stilling basin, the limit wall length that described stilling basin is positioned at upstream side is less than the length of downstream side wall, what the afterbody of stilling basin was provided with arc structure chooses bank, described bank of choosing is obliquely installed to upstream side level, and the Kan Ding choosing bank is connected with slope and is connected with river course than the slope section for 1:10.
2. the arrangement on channel earial drainage weir according to claim 1, it is characterised in that: the limit wall that described import weir crest section is positioned at upstream side is arc section or straight-line segment, when being tangentially connected mutually for limit wall with channel during described arc section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610162675.5A CN105625256B (en) | 2016-03-22 | 2016-03-22 | The arrangement on channel aerial drainage weir |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610162675.5A CN105625256B (en) | 2016-03-22 | 2016-03-22 | The arrangement on channel aerial drainage weir |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105625256A true CN105625256A (en) | 2016-06-01 |
| CN105625256B CN105625256B (en) | 2017-10-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610162675.5A Active CN105625256B (en) | 2016-03-22 | 2016-03-22 | The arrangement on channel aerial drainage weir |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105625256B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109024492A (en) * | 2018-09-03 | 2018-12-18 | 桂林市水利电力勘测设计研究院 | Channel |
| CN109750640A (en) * | 2019-01-15 | 2019-05-14 | 中国电建集团北京勘测设计研究院有限公司 | Narrow river valley bank discharge structure energy dissipation below spillway structure |
| CN112962772A (en) * | 2021-03-02 | 2021-06-15 | 北京雨人润科生态技术有限责任公司 | Drainage channel and rainwater regulation and storage system |
| CN115323855A (en) * | 2022-05-31 | 2022-11-11 | 绥德县农村公路养护站 | Slip-flow type drainage system for maintaining bearing capacity of loess foundation and construction method |
Citations (5)
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| JP2009228315A (en) * | 2008-03-24 | 2009-10-08 | National Agriculture & Food Research Organization | Damping structure for falling water sound-falling water flow in water zone |
| CN204626352U (en) * | 2015-02-13 | 2015-09-09 | 水利部交通运输部国家能源局南京水利科学研究院 | A kind of anti-step absorption basin |
| CN204662380U (en) * | 2015-05-27 | 2015-09-23 | 三峡大学 | A kind of bench spillway |
| CN205000307U (en) * | 2015-09-28 | 2016-01-27 | 安徽理工大学 | Joint energy dissipation facility of bank formula at bottom of cascaded - spiral reverse rotation |
| CN205421153U (en) * | 2016-03-22 | 2016-08-03 | 黄河勘测规划设计有限公司 | Arrangement structure on channel earial drainage weir |
-
2016
- 2016-03-22 CN CN201610162675.5A patent/CN105625256B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009228315A (en) * | 2008-03-24 | 2009-10-08 | National Agriculture & Food Research Organization | Damping structure for falling water sound-falling water flow in water zone |
| CN204626352U (en) * | 2015-02-13 | 2015-09-09 | 水利部交通运输部国家能源局南京水利科学研究院 | A kind of anti-step absorption basin |
| CN204662380U (en) * | 2015-05-27 | 2015-09-23 | 三峡大学 | A kind of bench spillway |
| CN205000307U (en) * | 2015-09-28 | 2016-01-27 | 安徽理工大学 | Joint energy dissipation facility of bank formula at bottom of cascaded - spiral reverse rotation |
| CN205421153U (en) * | 2016-03-22 | 2016-08-03 | 黄河勘测规划设计有限公司 | Arrangement structure on channel earial drainage weir |
Non-Patent Citations (1)
| Title |
|---|
| 徐国宾: "《河工学》", 31 October 2011 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109024492A (en) * | 2018-09-03 | 2018-12-18 | 桂林市水利电力勘测设计研究院 | Channel |
| CN109750640A (en) * | 2019-01-15 | 2019-05-14 | 中国电建集团北京勘测设计研究院有限公司 | Narrow river valley bank discharge structure energy dissipation below spillway structure |
| CN112962772A (en) * | 2021-03-02 | 2021-06-15 | 北京雨人润科生态技术有限责任公司 | Drainage channel and rainwater regulation and storage system |
| CN115323855A (en) * | 2022-05-31 | 2022-11-11 | 绥德县农村公路养护站 | Slip-flow type drainage system for maintaining bearing capacity of loess foundation and construction method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105625256B (en) | 2017-10-03 |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhao Lijun Inventor after: Zhu Songchang Inventor after: Jing Laihong Inventor after: Xiong Shumei Inventor after: Jing Wenbin Inventor after: Wu Dahai Inventor before: Zhao Lijun Inventor before: Zhu Songchang Inventor before: Jing Laihong Inventor before: Xiong Shumei Inventor before: Liu Jinyong |
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| CP01 | Change in the name or title of a patent holder | ||
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Address after: 450003 Jinshui Road 109, Zhengzhou City, Henan Province Patentee after: Yellow River Survey Planning and Design Research Institute Co., Ltd. Address before: 450003 Jinshui Road 109, Zhengzhou City, Henan Province Patentee before: Yellow River Engineering Consulting Co., Ltd. |