CN115012371A - Side seepage type bending non-spiral water taking structure - Google Patents
Side seepage type bending non-spiral water taking structure Download PDFInfo
- Publication number
- CN115012371A CN115012371A CN202210202928.2A CN202210202928A CN115012371A CN 115012371 A CN115012371 A CN 115012371A CN 202210202928 A CN202210202928 A CN 202210202928A CN 115012371 A CN115012371 A CN 115012371A
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- channel
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- seepage
- dike
- canal
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 67
- 238000005452 bending Methods 0.000 title description 3
- 238000007667 floating Methods 0.000 claims abstract description 21
- 230000004888 barrier function Effects 0.000 claims abstract description 7
- 241000565675 Oncomelania Species 0.000 claims description 21
- 239000004746 geotextile Substances 0.000 claims description 6
- 201000004409 schistosomiasis Diseases 0.000 abstract description 10
- 230000002262 irrigation Effects 0.000 abstract description 6
- 238000003973 irrigation Methods 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 2
- 230000000903 blocking effect Effects 0.000 description 11
- 239000004575 stone Substances 0.000 description 11
- 241000237858 Gastropoda Species 0.000 description 5
- 238000013461 design Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 208000035473 Communicable disease Diseases 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 244000144972 livestock Species 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B13/00—Irrigation ditches, i.e. gravity flow, open channel water distribution systems
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B13/00—Irrigation ditches, i.e. gravity flow, open channel water distribution systems
- E02B13/02—Closures for irrigation conduits
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Revetment (AREA)
Abstract
The invention discloses a side seepage type bent snail-free water taking structure which comprises a water inlet riverway or a ditch, a bent working section riverway or a ditch, an easy seepage dike, a water outlet riverway or a ditch and a snail-free channel. The water inlet river channel or the ditch consists of a river channel or a ditch, a floating barrier and a control gate; the curved working section river channel or ditch is a concave bank river channel or ditch; the easy-seepage dike mainly comprises a dike bank slope spiral shell resisting facility and a seepage dike; the downstream of the water outlet channel or the channel at the bent working section of the channel or the channel is connected with the channel or the channel at the bent working section. The spiral-free channel is adjacent to the easy-seepage dike, receives spiral-free water flow seeped out by the collecting seepage dike and is used for diversion irrigation. The invention has the advantages of small occupied area, simple structure and convenient maintenance, and is suitable for large-scale popularization and application in vast schistosomiasis epidemic areas.
Description
Technical Field
The invention relates to the field of water conservancy and blood defense technology and farmland irrigation, in particular to a side-permeable bent snail-free water taking structure.
Technical Field
Schistosomiasis is an infectious disease which seriously harms the health of people and influences the development of social economy, and has strong infectivity, multiple transmission links and wide epidemic range. The oncomelania is the largest vector of the source of schistosomiasis and the only intermediate host of schistosomiasis, and practice proves that the control of oncomelania diffusion can effectively block the local propagation and prevalence of schistosomiasis.
After the recent decades of efforts, the number of people suffering from schistosomiasis and sick livestock in China are obviously reduced, and most popular counties (cities and districts) in the Yangtze river basin in provinces reach the standard of transmission blocking or elimination. However, the area of the oncomelania nationwide cannot be effectively compressed and is in a reciprocating state all the time, which is the key point and difficulty in schistosomiasis control work at present. The oncomelania diffuses with water flow to expand the epidemic area of schistosomiasis, and is a great problem for preventing and treating schistosomiasis globally. The Yangtze river valley is an important production base of grains, cotton and oil in China, and the propagation of oncomelania caused by irrigation and water taking is a rare event, so that the safety of water taking and normal production and life of local people are seriously influenced.
The traditional engineering measures for preventing oncomelania from diffusing along with water flow mainly adopt a water blocking technology of water taking in a snail sinking tank and a middle layer, but the conventional measures of water taking in the snail sinking tank and the middle layer have the problems of wide occupied area and large capital investment, are limited by factors such as landform and geomorphology, hydrological conditions and the like, and cannot give full play to the benefits of engineering, so that the new technology for taking water without oncomelania is urgently needed to be researched to adapt to the requirements of water taking and irrigation.
Disclosure of Invention
The invention aims to solve the technical problem of providing a water taking structure which has the characteristics of small occupied area, simple structure, convenience in maintenance and the like; the principle is that the water containing oncomelania epidemic water is separated from the water body through the permeable dike by a non-oncomelania seepage mode.
In order to achieve the purpose, the invention adopts the technical scheme that:
a side-penetration type bent water taking channel structure without snail comprises a water inlet river channel or ditch, a bent working section river channel or ditch, an easy-seepage embankment, a water outlet river channel or ditch and a water taking channel without snail.
The water inlet riverway or the ditch comprises an inlet riverway or a ditch, a floating barrier and a control gate. The floating blocking grid is arranged in front of the control gate and used for blocking floating objects in the water body and oncomelania adsorbed on the floating objects; the control gate is mainly used for controlling the flow entering the downstream.
Furthermore, the curved working section river channel or ditch is a concave bank river channel or ditch, and the main purpose is to improve the flow velocity of the working section and prevent silt from silting up and the oncomelania from residing in the region for a long time.
Furthermore, the outlet watercourse or canal is positioned at the downstream of the curved working section watercourse or canal and is connected with the curved working section watercourse or canal.
Furthermore, the snail-free channel is adjacent to the easy seepage dike, receives and collects the snail-free water flow seeped by the seepage dike, and is used for diversion irrigation.
Furthermore, the water inlet river channel or canal, the bent working section river channel or canal and the water outlet river channel or canal have specific drop, so that the normal drainage of the river (canal) water flow is ensured.
Furthermore, the floating blocking grid adopts a floating structure and can fluctuate up and down along with the water level, and when the floating objects to be blocked are more, the floating blocking grid is cleaned in time, so that the floating blocking and water delivery efficiency is improved;
furthermore, in order to increase seepage efficiency and improve the water diversion amount of non-spiral water, the bent working section river channel or ditch is set to be of a concave bank structure, and the angle is preferably controlled to be 120-150 degrees.
Further, the easy seepage dike comprises a dike bank slope screw blocking facility and a seepage dike. The dike bank slope screw-blocking measures are arranged on the seepage dike slope surface and are composed of a Reynolds protection pad and a plurality of layers of geotextiles.
Furthermore, in order to ensure the safety of slope protection, the thickness of the Reynolds protection pad is not less than 100 mm. Pebbles, lump stones and flaked stones filled in the Relo protective pad are preferably 70-150 mm in particle size, and the stone materials are required to be hard and have no weathering; the specification of the geotextile can meet the standard of filament spun-bonded needle-punched non-woven geotextile (GB/T17639-2008). The seepage dike main body is filled with broken stones, rock blocks or stone residues and the like, and the slope surface is kept leveled; in order to ensure the stability of the embankment, the filling material is compacted, the solid volume rate is more than 76 percent, and the relative porosity is not more than 24 percent.
The invention has the advantages that: the device realizes the dynamic process separation of the oncomelania and the water body by using a method of water taking without oncomelania seepage, has the characteristics of small occupied area and flexible use compared with the traditional water taking projects such as a snail sedimentation tank and the like, and can adjust the length of an easy-seepage dike according to the water taking quantity requirement; the structure is convenient to construct and suitable for large-scale popularization and application in vast schistosomiasis epidemic areas.
Drawings
FIG. 1 is a schematic plan view of a side-permeable curved spiral-free water intake channel according to the present invention;
FIG. 2 is a cross-sectional view of an influent channel or ditch of the present invention (I-I) ’ Profile plane);
FIG. 3 is a cross-sectional view of a curved working channel or canal and a screwless canal (II-II) ’ )。
FIG. 4 shows an outlet channel or canal and a screwless canal (III-III) ’ ) A cross-sectional view.
In FIG. 1: 1-import river course or ditch, 2-stop spiral shell bars, 3-water inlet gates, 4-bending working section river course or ditch, 5-easy seepage dike, 6-water outlet river course or ditch, and 7-no spiral channel.
In fig. 2: 8-difficult seepage dike, 9-hardened revetment, 10-designed flood level and 11-ballast foot.
In fig. 3: 8-difficult seepage dike, 9-hardened revetment, 10-designed flood level, 11-ballast foot, 12-easy seepage dike, 13-spiral shell prevention measure, 14-revetment and 15-channel designed water level.
In fig. 4: 8-difficult seepage dike, 9-hardened revetment, 10-designed flood level, 11-ballast foot, 14-revetment and 15-channel designed water level.
Detailed Description
The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings.
Fig. 1 is a plan view of a side-seepage curved snail-free water intake structure according to the present invention, which includes a water intake channel or canal, a curved working segment channel or canal, an easy-seepage embankment, a water outlet channel or canal, and a snail-free channel.
The water inlet riverway or the ditch comprises an inlet riverway or a ditch 1, a floating barrier 2 and a control gate 3. The floating stopping fence 1 is used for stopping floating objects in a river channel or a ditch and is composed of a stainless steel wire mesh, the height of the wire mesh is not less than 1.2m, the length of the wire mesh is consistent with the length of the river (ditch), and the upper part of the wire mesh is connected with a floating body which can float up and down along with the water level; the control gate 3 is used for controlling the flow entering the river channel or the channel from the inlet river channel or the channel; the floating barrier 1 is arranged in front of the control gate 3.
The curved working section river channel or ditch 4 is a bank-concave river channel or ditch, and the main purpose is to improve the flow velocity of the working section and prevent silt from silting up and the oncomelania from staying in the region for a long time. In order to keep the river channel or the ditch smooth, prevent the water flow from being washed violently and improve the water delivery efficiency, the angle of the concave bank can not be too large or too small and is preferably controlled between 120 degrees and 150 degrees.
The easy-seepage embankment 5 mainly comprises an embankment bank slope screw blocking facility and a seepage embankment (the specific description is shown in figure 3). The spiral shell prevention measure is arranged on the slope surface of the seepage dike and consists of a Reynolds protection pad and a plurality of layers of geotextiles; the seepage-prone dike is mainly built by water-permeable stones, gravels or stone residues.
The outlet watercourse or ditch 6 is connected with the lower part of the curved working section watercourse or ditch.
The spiral-free channel 7 is adjacent to the easy seepage dike 5, receives spiral-free water flow seeped by the seepage dike and is used for water diversion and irrigation.
The detailed structure of the present invention will be further described with reference to the cross-sectional views (fig. 2 to 4).
FIG. 2 shows an influent channel or canal (I-I) ’ ) A cross-sectional view. The two banks of the water inlet riverway or the ditch are difficult to seep into the dike 8, the dike body of the difficult to seep into the dike 8 is mainly formed by filling clay, the upstream surface of the dike needs to be hardened to protect the slope 9 for preventing the propagation of oncomelania, and the slope protection material can be concrete or stone mortar; combining with flood control requirements, the hardening height of the embankment slope is higher than the designed water level by 10 and is generally higher than the designed flood level by more than 0.5 m; in order to prevent the dike feet from washing, the dike should be subjected to foot-fixing 11, and concrete or stone-masonry foot-fixing is adopted.
FIG. 3 shows curved working section channels or ditches and screwless channels (II-II) ’ ) A cross-sectional view. One side of the channel or the ditch of the curved working section is provided with a difficult-to-seep dike 8, and the specific implementation mode is as the same as that of the difficult-to-seep dike 8 in the figure 2. The easy seepage dike 12 is arranged between the curved working section river channel or ditch and the non-spiral channel. The easy-seepage dike 12 is filled with crushed stone, lump stone or stone slag and compacted, and the solid volume rate is preferably more than 76%, and the relative porosity is not preferably more than 24%. In order to prevent oncomelania from diffusing, oncomelania blocking measures 13 are arranged on the upstream surface of the seepage dike, the oncomelania blocking measures 13 are composed of Reynolds protection pads and multiple layers of geotextiles, and oncomelania diffusion can be prevented while the seepage of the dike is kept; in combination with the flood control requirement, the height of the spiral shell prevention measures 13 should be higher than the designed flood level 10, and generally should be higher than the designed flood level by more than 0.5 m. In order to prevent the dike feet from washing, the dike should be subjected to foot-fixing 11, and concrete or stone-masonry foot-fixing is adopted. In order to better prevent oncomelania from diffusing, oncomelania-stopping measures 13 are also arranged on the back water surface of the seepage dike, and the design parameters of the oncomelania-stopping measures are consistent with those of the oncomelania-stopping measures on the upstream surface. In order to prevent the non-spiral channel from being washed by water flow, the other side of the non-spiral channel is provided with a slope protection 14, and the slope protection form adopts an ecological formThe height of the slope protection is higher than the designed water level 15 of the channel, generally higher than the designed water level 0.5m of the channel, and is lower than the bottom of the channel.
FIG. 4 shows an outlet channel or canal and a screwless canal (III-III) ’ ) A cross-sectional view. The two banks of the outlet river or the channel are difficult seepage embankments 8, and the specific embodiment of the difficult seepage embankments 8 is the same as that of the difficult seepage embankments 8 in fig. 2. Slope protection 14 is carried out on both sides of the spiral-free channel, the slope protection form adopts ecological slope protection, the height of the slope protection is higher than the channel design water level 15, generally higher than the channel design water level by 0.5m, and the slope protection is arranged at the bottom of a channel.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A side-permeable curved snail-free water intake channel structure is characterized by comprising a water intake river channel or ditch, a curved working section river channel or ditch, an easy-seepage embankment, a water outlet river channel or ditch and a snail-free channel.
2. The channel structure according to claim 1, wherein the intake river or channel comprises an intake river or channel, a floating barrier and a control gate, the floating barrier is arranged in front of the control gate and is used for intercepting floating objects in the water body and oncomelania adsorbed on the floating objects; the control gate is mainly used for controlling the size of the flow entering the downstream.
3. The channel structure of claim 1, wherein the curved work section channel or trench is a valley bank channel or trench.
4. The channel structure of claim 1 wherein the outlet channel or canal is downstream of the curved working section channel or canal and is contiguous with the curved working section channel or canal.
5. The channel structure according to claim 1, wherein the non-helical channel is adjacent to the easy-to-seep dam.
6. The channel structure of claim 1 wherein the incoming watercourse or canal, curved bench watercourse or canal and outgoing watercourse or canal have a slope.
7. The channel structure of claim 1 wherein the floating barriers are floating structures.
8. The channel structure of claim 1 wherein the angle of the curved working channel or canal is controlled between 120 ° and 150 °.
9. The channel structure according to claim 1, wherein said easy-to-seep embankment comprises an embankment bank screw-stop facility and a seep embankment.
10. The channel structure according to claim 9, wherein said embankment bank slope screw-stopping means are arranged on said seepage embankment slope surface, and are composed of a reynolds protection pad and a plurality of layers of geotextiles.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111203617X | 2021-10-15 | ||
| CN202111203617 | 2021-10-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115012371A true CN115012371A (en) | 2022-09-06 |
| CN115012371B CN115012371B (en) | 2024-01-12 |
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| CN202210202928.2A Active CN115012371B (en) | 2021-10-15 | 2022-03-03 | Side seepage type bending spiral water-taking structure |
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5228932A (en) * | 1975-08-25 | 1977-03-04 | Nippon Chem Ind Co Ltd:The | Shellfish killing agent |
| CN1150200A (en) * | 1995-11-13 | 1997-05-21 | 同济医科大学 | Culvert and sluice canal system and method for separating and interception snail from water |
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2022
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| CN115012371B (en) | 2024-01-12 |
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