CN205421153U - Arrangement structure on channel earial drainage weir - Google Patents
Arrangement structure on channel earial drainage weir Download PDFInfo
- Publication number
- CN205421153U CN205421153U CN201620219242.4U CN201620219242U CN205421153U CN 205421153 U CN205421153 U CN 205421153U CN 201620219242 U CN201620219242 U CN 201620219242U CN 205421153 U CN205421153 U CN 205421153U
- Authority
- CN
- China
- Prior art keywords
- channel
- earial drainage
- weir
- drainage weir
- bank
- 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.)
- Withdrawn - After Issue
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Classifications
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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
- Y02A10/30—Flood prevention; Flood or storm water management, e.g. using flood barriers
Landscapes
- Revetment (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The utility model discloses an arrangement structure on channel earial drainage weir, the earial drainage weir constitutes by importing the weir crest section and letting out the groove section, the longitudinal center line on earial drainage weir be the straight line and the channel in the contained angle of rivers between in the other direction be the acute angle, let out groove section bottom synthesis vertical po bi is less than or equal to 1: 2, let out the groove section along vertically being provided with multistage energy dissipation step, the afterbody of every grade of energy dissipation step all is provided with slant energy dissipation bank, lets out groove section end and is provided with absorption basin, and the side wall length that absorption basin lies in the upstream side is lighter than the length of downstream side side wall, and absorption basin's afterbody is provided with circular structure's the bank of choosing, chooses the bank and is connected with the slope than being 1 to upstream side horizontal tilt setting, the kan ding who chooses the bank: 10 slope section and river course link up. The utility model discloses the advantage lies in setting channel earial drainage weir to holistic straightway to it arranges in channel breach department the construction volume and the operating expenses on the channel earial drainage weir that has consequently significantly reduced to acutangulate the longitudinal center line on earial drainage weir in the other direction with rivers in the channel.
Description
Technical field
This utility model relates to channel earial drainage weir, especially relates to the arrangement on channel earial drainage weir.
Background technology
At present, when using without gate broad-crested weir as the earial drainage weir of channel, how using channel breach as the inducer on channel earial drainage weir.Above-mentioned channel earial drainage weir arrangement and structure as shown in Figure 1, 2, are let out groove section 1.1, arc transition lets out groove section 1.2, straight line is let out groove section 1.3 and constituted by import；After letting out groove, current directly enter river course 1.4 with drop stream.Water in a canal was let out groove section 1.1 left side from import and is entered earial drainage weir (as shown in Figure 1) letting out the direction of groove section centrage approximately perpendicular to 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 minor radius wide-angle and concentrate further letting out current on the right of groove, cause that to let out trough inner water flow distribution the most uneven, after letting out groove, current directly wash away riverbed with drop stream entrance river course 1.4, threaten riverbed and access bridge bridge pier safely.
Summary of the invention
This utility model purpose is to provide the arrangement on a kind of channel earial drainage weir.
For achieving the above object, this utility model takes following technical proposals:
The arrangement on channel earial drainage weir described in the utility model, including 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 constitutes；The longitudinal centre line on described earial drainage weir is straight line, and the angle between current opposite direction in the longitudinal centre line 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 paralleled with letting out groove section two abutment wall top line；Let out groove section end and be provided with stiling basin, described stiling basin is positioned at the abutment wall length length less than downstream abutment wall of upstream side, what the afterbody of stiling basin was provided with arc structure chooses bank, described choose bank horizontal tilt to the upstream side arrange, choose bank Kan Ding connect have slope to be connected with river course than the slope section for 1:10.
The abutment wall that described import weir crest section is positioned at upstream side is arc section or straightway, when being connected mutually with the abutment wall of channel for described arc section.
This utility model advantage is to be arranged to channel earial drainage weir the straightway of entirety, and is acutangulated with the current opposite direction in channel by the longitudinal centre line on earial drainage weir and be arranged in channel indentation, there, therefore greatly reduces construction volume and the operating expenses on channel earial drainage weir.Let out groove section and be vertically arranged with multistage energy dissipating step, and be respectively provided with oblique energy dissipating bank at the afterbody of every grade of energy dissipating step, part current deflecting 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 stiling basin, what the afterbody of stiling basin arranged arc structure chooses bank, Kan Ding connects has slope to be connected with river course than the slope section for 1:10, ensure that the flow energy that dissipates further, and current choose bucket lip to choose streamed entrance river course when making low discharge, avoid current scour bucket lip basis, meet the requirement of channel earial drainage weir safe operation.Import weir crest section is positioned at the abutment wall of upstream side and is set to arc section, and this arc section is connected mutually with the abutment wall of channel, therefore when letdown flow is bigger, can improve import flow-shape, reduce the uneven distribution of import weir crest section current.The abutment wall length that stiling basin is positioned at upstream side is set smaller than the length of downstream abutment wall, reaches adjust transversal inhomogeneity current purpose further and strengthen the effect of energy dissipation of stiling 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 this utility model is arranged in channel indentation, there.
Fig. 4 is longitudinal section structure schematic diagram on channel earial drainage weir in Fig. 3.
Detailed description of the invention
As shown in Figure 3,4, the arrangement on channel earial drainage weir described in the utility model, including the earial drainage weir being arranged in channel 1 indentation, there；Described earial drainage weir is the broad-crested weir without gate of pure xoncrete structure, by import weir crest section 2 with let out groove section 3 and constitute；It is arc section 4 that import weir crest section 2 is positioned at the abutment wall of upstream side, and described arc section 4 is connected mutually with the abutment wall of channel 1；The longitudinal centre line 5 on earial drainage weir is straight line, and the angle a1 between current opposite direction in the longitudinal centre line 5 on earial drainage weir and channel 1 is 64 ° of acute angles；Let out comprehensively longitudinal slope, bottom of groove section 3 than no 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 paralleled with letting out 3 liang of abutment wall top lines of groove section；Height and the width of oblique energy dissipating bank 7 are 0.2 meter；Oblique energy dissipating bank 7 becomes 62.718 ° of oblique angle a2 to be partial to upstream side abutment walls with the longitudinal centre line 5 flowing weir in the plane；Let out groove section 3 end and be provided with stiling basin 8, described stiling basin 8 is positioned at the abutment wall length length less than downstream abutment wall of upstream side, the afterbody of stiling basin 8 be provided with radius R be 5 meters, angle a3 be 16.26 ° arc structure choose bank 9, described choose bank 9 horizontal tilt to the upstream side arrange, choose bank 9 Kan Ding connect have slope to be connected with river course 11 than the slope section 10 for 1:10.
Claims (2)
1. the arrangement on channel earial drainage weir, including 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 constitutes；It is characterized in that: the longitudinal centre line on described earial drainage weir is straight line, the angle between current opposite direction in the longitudinal centre line 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 paralleled with letting out groove section two abutment wall top line；Let out groove section end and be provided with stiling basin, described stiling basin is positioned at the abutment wall length length less than downstream abutment wall of upstream side, what the afterbody of stiling basin was provided with arc structure chooses bank, described choose bank horizontal tilt to the upstream side arrange, choose bank Kan Ding connect have slope to be connected with river course than the slope section for 1:10.
The arrangement on channel earial drainage weir the most according to claim 1, it is characterised in that: the abutment wall that described import weir crest section is positioned at upstream side is arc section or straightway, and when for described arc section, the abutment wall with channel is connected mutually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620219242.4U CN205421153U (en) | 2016-03-22 | 2016-03-22 | Arrangement structure on channel earial drainage weir |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620219242.4U CN205421153U (en) | 2016-03-22 | 2016-03-22 | Arrangement structure on channel earial drainage weir |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205421153U true CN205421153U (en) | 2016-08-03 |
Family
ID=56520798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620219242.4U Withdrawn - After Issue CN205421153U (en) | 2016-03-22 | 2016-03-22 | Arrangement structure on channel earial drainage weir |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205421153U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105625256A (en) * | 2016-03-22 | 2016-06-01 | 黄河勘测规划设计有限公司 | Arranging structure for flow drainage weir of ditch |
| CN114032856A (en) * | 2021-12-18 | 2022-02-11 | 河南省水利第二工程局 | Construction method of channel and pressure forebay connecting part reinforcing device |
-
2016
- 2016-03-22 CN CN201620219242.4U patent/CN205421153U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105625256A (en) * | 2016-03-22 | 2016-06-01 | 黄河勘测规划设计有限公司 | Arranging structure for flow drainage weir of ditch |
| CN114032856A (en) * | 2021-12-18 | 2022-02-11 | 河南省水利第二工程局 | Construction method of channel and pressure forebay connecting part reinforcing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160803 Effective date of abandoning: 20171003 |
|
| AV01 | Patent right actively abandoned |