CN104712010A - Water diversion and silt prevention system for convex bank - Google Patents
Water diversion and silt prevention system for convex bank Download PDFInfo
- Publication number
- CN104712010A CN104712010A CN201510134698.0A CN201510134698A CN104712010A CN 104712010 A CN104712010 A CN 104712010A CN 201510134698 A CN201510134698 A CN 201510134698A CN 104712010 A CN104712010 A CN 104712010A
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- China
- Prior art keywords
- water
- guiding
- convex bank
- intake
- sills
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Classifications
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- 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
- 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
- E02B3/023—Removing sediments
Abstract
The invention discloses a water diversion and silt prevention system for a convex bank. The water diversion and silt prevention system comprises a water guiding channel and a guiding wall which are arranged at the convex bank of a riverway, one end of the water guiding channel is provided with a water taking opening, the water taking opening is arranged inversely according to the flowing direction, the other end of the water guiding channel is provided with a plurality of sand guiding sills, the water taking opening is 2-4 times longer than the guiding wall, a front one third portion of the height of the guiding wall is a design flood level, the rear two thirds portion of the guiding wall is lower than the front one third portion of the guide wall, the sand guiding sills are straight line sand guiding sills, the sand guiding sills are parallel to one another, an inclination angle of 35-45 degrees is formed between the sand guiding sills and the flowing direction of the riverway, the length of the sand guiding sills is one second of the width of the water taking opening, and the number of the sand guiding sills is 3-5. The water diversion and silt prevention system is simple in structure, the silt preventing efficiency is good, and the water diversion is guaranteed.
Description
Technical field
The present invention relates to the anti-silting system of a kind of diversion, particularly relate to the anti-silting system of a kind of convex bank diversion.
Background technology
The water yield is reliable, water quality is good, and cost is rationally the top priority that water intake engineering will solve, and therefore, the layout of intake structure is the key of water intake engineering success or failure.The layout of intake structure affects by several factors, and its knowledge question of water conservancy main manifestations is guaranteed extent, the Sediment Siltation and flow-shape etc. of taking the water yield, and the safe operation of these problems to intake structure has a great impact.For the ease of diversion with prevent silt from entering channel, intake generally should be located at the concave bank of tortuous channel, when concave bank does not have suitable position, also can be built in straight section.As everyone knows, Solution of Flow in Curved Channel is subject to the effect of centrifugal intertia force, and the cross-section of river exists horizontal water surface slope, and namely the concave bank side water surface is high, and the convex bank place water surface is low.Current, when flowing through bend, due to the acting in conjunction of gravity and centrifugal force, form cross current in section.Bend cross current moves, and exacerbate defeated on cross section of silt and move, knee, river course, convex bank water velocity is little, and silt easily deposits, and riverbank is more slow; Concave bank water velocity is large, and riverbank weathers, and riverbank is comparatively steep, and silt not easily deposits.Therefore, intake structure should be arranged in concave bank, and being arranged in convex bank is then avoid greatly.But, in Practical Project, many times limit by the condition such as landform, geology, or because of cause specifics such as earth clearance, the requirements of engineering integral layout, intake structure must be laid in convex bank.In this case, water diversion and sand control becomes one of key technology that such intake structure primarily solves.If do not handle the anti-silting problem of diversion well, often cause intake silt to silt up and cause water intaking difficulty even to cause engineering to scrap.
Summary of the invention
For the deficiencies in the prior art, the object of the invention is to be to provide a kind of convex bank diversion anti-silting system, this system architecture is simple, and anti-silt effect is better, and diversion is secure.
For achieving the above object, the present invention is achieved by the following technical programs:
The anti-silting system of a kind of convex bank diversion, comprise the drainage channel and guide wall of being located at river course convex bank, one end of described drainage channel is provided with intake, and described intake flows to against streamflow and arranges, the other end of described drainage channel is provided with several guide sand sill.
Further, the length of described guide wall is 2-4 times of intake length.
Further, front 1/3 part of described guide wall height is design flood level, and after guide wall, 2/3 part is lower than 1/3 part before guide wall.
Further, several guide sand sill described are straight line guide sand sill, and arranged in parallel between every bar guide sand sill.
Further, several guide sand sill described and streamflow flow to into 35-45 degree angle.
Further, the length of several guide sand sill described is 1/2 of described intake width.
Further, the quantity of described guide sand sill is 3-5 bar.
In sum, advantage of the present invention is: the anti-silting system of a kind of convex bank diversion, it comprises the drainage channel and guide wall of being located at river course convex bank, one end of drainage channel is provided with intake, intake flows to against streamflow and arranges, the other end of drainage channel is provided with several guide sand sill, and by layout for water intake under convex bank unfavorable conditions, water diversion and sand control problem is very outstanding.By laying guide wall and guide sand sill measure, rationally, effectively solve the anti-silting problem of diversion, therefore, the water intake engineering being arranged in convex bank also can reach good effect of water diversion and sediment control.
Accompanying drawing explanation
Fig. 1 is the structural representation of the anti-silting system of convex bank diversion in the embodiment of the present invention;
1, river course, 101, river course concave bank, 102, river course convex bank, 2, guide wall, 3, guide sand sill, 4, the inner side abutment wall of drainage channel, 5, the outside abutment wall of drainage channel, 6, intake, 7, drainage channel.
Detailed description of the invention
Below in conjunction with accompanying drawing and detailed description of the invention, invention is further described:
As shown in Figure 1, the anti-silting system of a kind of convex bank diversion, comprise the drainage channel 7 and guide wall 2 of being located at river course convex bank 102, one end of described drainage channel 7 is provided with intake 6, described intake 6 is arranged against river course 1 flow direction, and the other end of described drainage channel 7 is provided with several guide sand sill 3.
The length of described guide wall 2 is 2 times of intake 6 length.
Front 1/3 part of described guide wall 2 height is design flood level, and after guide wall 2,2/3 part is lower than 1/3 part before guide wall 2.
Several guide sand sill 3 described are straight line guide sand sill, and arranged in parallel between every bar guide sand sill 3.
Several guide sand sill 3 described become 35 degree of angles with river course 1 flow direction.
The length of several guide sand sill 3 described is 1/2 of described intake 6 width.
The quantity of described guide sand sill 3 is 3.
Both sides, river course 1 are respectively equipped with river course concave bank 101 and river course convex bank 102, by said system, drainage channel 7 is located between river course concave bank 101 and river course convex bank 102, and the inner side abutment wall 4 of drainage channel is located at the side of river course convex bank 102, first, intake 6 is arranged against river course 1 flow direction, builds one section of guide wall 2 close with river course 1 bend radius from the position downstream of the outside abutment wall 5 of drainage channel, and three straight line guide sand sill 3 are set at the end of guide wall 2.
Guide wall 2 length adopts 2 times of intake width, and before guide wall length, 1/3 is drainage channel 7 design flood level, and after guide wall 2,2/3 part is lower than 1/3 part before guide wall 2.After guide wall 2 length, 2/3 is drainage channel 7 design flood level 2/3.
Article three, straight line guide sand sill 3 be arranged in parallel, and angle becomes 35 ° of angles with river course 1 flow direction, and length is 1/2 of intake width, and front two guide sand sill 3 are highly drainage channel 7 design flood level 1/4, and are not less than 1.0 meters, and Article 3 guide sand sill 3 is highly 0.5 meter.
Three guide sand sill 3 one aspects are set and can make guide wall 2 contraction in length, silt can also be avoided to gather at the tail end of guide wall 2 on the other hand.
After arranging guide wall 2, from river course 1 plane, the current cross-section of river by constriction, but due to river course convex bank 102 subregion be recirculating zone, effective cross-section of river of main flow not occupies whole river course 1 section.Therefore, adopt this cloth postpone, the water surface longitudinal gradient in river course 1 falls and does not significantly change, and the water movement situation of main stem is comparatively smooth-going on the contrary.Inside and outside guide wall 2, water-head is also little, changes to some extent, generally within the scope of 5 ~ 25cm according to river course 1 degree of crook and the ratio that takies river course 1.
In sum, the invention has the beneficial effects as follows: layout for water intake is under convex bank unfavorable conditions, and water diversion and sand control problem is very outstanding.By laying guide wall and guide sand sill measure, rationally, effectively solving the anti-silting problem of diversion, illustrating that the water intake engineering being arranged in convex bank also can reach good effect of water diversion and sediment control.And this system architecture is simple, anti-silt effect is better, and diversion is secure.
For a person skilled in the art, according to above technical scheme and design, other various corresponding change and distortion can be made, and all these change and distortion all should belong within the protection domain of the claims in the present invention.
Claims (7)
1. the anti-silting system of convex bank diversion, comprise the drainage channel (7) and guide wall (2) of being located at river course convex bank (102), it is characterized in that: one end of described drainage channel (7) is provided with intake (6), inverse river course (1) flow direction of described intake (6) is arranged, the other end of described drainage channel (7) is provided with several guide sand sill (3).
2. the anti-silting system of a kind of convex bank diversion according to claim 1, is characterized in that: the length of described guide wall (2) is 2-4 times of intake (6) length.
3. the anti-silting system of a kind of convex bank diversion according to claim 2, it is characterized in that: described guide wall (2) height front 1/3 part be design flood level, guide wall (2) afterwards 2/3 part lower than front 1/3 part of guide wall (2).
4. the anti-silting system of a kind of convex bank diversion according to claim 1, is characterized in that: described several guide sand sill (3) are straight line guide sand sill, and arranged in parallel between every bar guide sand sill (3).
5. the anti-silting system of a kind of convex bank diversion according to claim 4, is characterized in that: described several guide sand sill (3) become 35-45 degree angle with river course (1) flow direction.
6. the anti-silting system of a kind of convex bank diversion according to claim 5, is characterized in that: the length of described several guide sand sill (3) is 1/2 of described intake (6) width.
7. the anti-silting system of a kind of convex bank diversion according to claim 5, is characterized in that: the quantity of described guide sand sill (3) is 3-5 bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510134698.0A CN104712010B (en) | 2015-03-25 | 2015-03-25 | A kind of anti-silting system of convex bank diversion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510134698.0A CN104712010B (en) | 2015-03-25 | 2015-03-25 | A kind of anti-silting system of convex bank diversion |
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| Publication Number | Publication Date |
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| CN104712010A true CN104712010A (en) | 2015-06-17 |
| CN104712010B CN104712010B (en) | 2017-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510134698.0A Expired - Fee Related CN104712010B (en) | 2015-03-25 | 2015-03-25 | A kind of anti-silting system of convex bank diversion |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106869090A (en) * | 2017-03-24 | 2017-06-20 | 武汉大学 | Dreg-blocking board sub-assembly and diversion tunnel debris retaining Slagoff method |
| CN109063370A (en) * | 2017-11-08 | 2018-12-21 | 四川大学 | Overbank tortuous channel depth of water average current flows to prediction technique |
| CN111622172A (en) * | 2020-04-24 | 2020-09-04 | 中建三局集团有限公司 | Flood control and silt prevention method for large music fountain in natural river basin |
| CN113882332A (en) * | 2021-12-08 | 2022-01-04 | 交通运输部天津水运工程科学研究所 | Bilateral vertical seam type fishway pool chamber silt reducing structure, fishway and silt reducing method thereof |
| CN115012370A (en) * | 2022-07-11 | 2022-09-06 | 兰州理工大学 | Flow guiding and sand discharging device suitable for curved channel |
| CN115075184A (en) * | 2022-07-08 | 2022-09-20 | 江苏百绿园林集团有限公司 | Urban inland river curved river channel anti-erosion revetment structure layout and construction method |
| CN115075184B (en) * | 2022-07-08 | 2024-05-17 | 江苏百绿园林集团有限公司 | Urban inland river curved river erosion protection shore structure layout and construction method |
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| FR2807079A1 (en) * | 2000-04-04 | 2001-10-05 | Eric Panechou | Fresh water retaining procedure for bed of river with variable flow consists of creating storage zone and reservoir in bed upstream of it |
| CN203768858U (en) * | 2014-03-04 | 2014-08-13 | 广东省水利水电科学研究院 | Water-taking sand-preventing guiding wall system |
| CN104032709A (en) * | 2014-06-20 | 2014-09-10 | 中建五局第三建设有限公司 | Silt prevention method for curves of urban rivers |
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2015
- 2015-03-25 CN CN201510134698.0A patent/CN104712010B/en not_active Expired - Fee Related
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| FR2807079A1 (en) * | 2000-04-04 | 2001-10-05 | Eric Panechou | Fresh water retaining procedure for bed of river with variable flow consists of creating storage zone and reservoir in bed upstream of it |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106869090A (en) * | 2017-03-24 | 2017-06-20 | 武汉大学 | Dreg-blocking board sub-assembly and diversion tunnel debris retaining Slagoff method |
| CN106869090B (en) * | 2017-03-24 | 2019-01-18 | 武汉大学 | Dreg-blocking board sub-assembly and diversion tunnel debris retaining Slagoff method |
| CN109063370A (en) * | 2017-11-08 | 2018-12-21 | 四川大学 | Overbank tortuous channel depth of water average current flows to prediction technique |
| CN109063370B (en) * | 2017-11-08 | 2020-06-30 | 四川大学 | Method for predicting water depth average water flow direction of curved riverway of flood plain |
| CN111622172A (en) * | 2020-04-24 | 2020-09-04 | 中建三局集团有限公司 | Flood control and silt prevention method for large music fountain in natural river basin |
| CN113882332A (en) * | 2021-12-08 | 2022-01-04 | 交通运输部天津水运工程科学研究所 | Bilateral vertical seam type fishway pool chamber silt reducing structure, fishway and silt reducing method thereof |
| CN113882332B (en) * | 2021-12-08 | 2022-02-08 | 交通运输部天津水运工程科学研究所 | Bilateral vertical seam type fishway pool chamber silt reducing structure, fishway and silt reducing method thereof |
| CN115075184A (en) * | 2022-07-08 | 2022-09-20 | 江苏百绿园林集团有限公司 | Urban inland river curved river channel anti-erosion revetment structure layout and construction method |
| CN115075184B (en) * | 2022-07-08 | 2024-05-17 | 江苏百绿园林集团有限公司 | Urban inland river curved river erosion protection shore structure layout and construction method |
| CN115012370A (en) * | 2022-07-11 | 2022-09-06 | 兰州理工大学 | Flow guiding and sand discharging device suitable for curved channel |
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| Publication number | Publication date |
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| CN104712010B (en) | 2017-04-05 |
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