CN108951530B - Spiral shell removing project of navigation diversion project - Google Patents
Spiral shell removing project of navigation diversion project Download PDFInfo
- Publication number
- CN108951530B CN108951530B CN201811157546.2A CN201811157546A CN108951530B CN 108951530 B CN108951530 B CN 108951530B CN 201811157546 A CN201811157546 A CN 201811157546A CN 108951530 B CN108951530 B CN 108951530B
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- water
- diversion
- canal
- navigation
- spiral
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 85
- 230000001502 supplementing effect Effects 0.000 claims abstract description 18
- 230000000903 blocking effect Effects 0.000 claims abstract description 14
- 239000010813 municipal solid waste Substances 0.000 claims abstract description 10
- 238000012876 topography Methods 0.000 claims abstract description 4
- 230000002265 prevention Effects 0.000 abstract description 4
- 201000004409 schistosomiasis Diseases 0.000 abstract description 4
- 241000237858 Gastropoda Species 0.000 description 15
- 241000565675 Oncomelania Species 0.000 description 12
- 230000007123 defense Effects 0.000 description 11
- 239000008280 blood Substances 0.000 description 8
- 210000004369 blood Anatomy 0.000 description 8
- 238000009792 diffusion process Methods 0.000 description 4
- 208000034699 Vitreous floaters Diseases 0.000 description 3
- 241000242678 Schistosoma Species 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 208000015181 infectious disease Diseases 0.000 description 2
- 208000035473 Communicable disease Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000009193 crawling Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B1/00—Equipment or apparatus for, or methods of, general hydraulic engineering, e.g. protection of constructions against ice-strains
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K61/00—Culture of aquatic animals
- A01K61/50—Culture of aquatic animals of shellfish
- A01K61/51—Culture of aquatic animals of shellfish of gastropods, e.g. abalones or turban snails
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B15/00—Cleaning or keeping clear the surface of open water; Apparatus therefor
- E02B15/04—Devices for cleaning or keeping clear the surface of open water from oil or like floating materials by separating or removing these materials
- E02B15/06—Barriers therefor construed for applying processing agents or for collecting pollutants, e.g. absorbent
-
- 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
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Marine Sciences & Fisheries (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Zoology (AREA)
- Environmental & Geological Engineering (AREA)
- Cleaning Or Clearing Of The Surface Of Open Water (AREA)
Abstract
A spiral shell removing project of a navigation diversion project comprises a plain canal with lower topography and a mountain canal positioned in a watershed area of a river basin, wherein a water supplementing channel is arranged at the highest altitude of the river bed of the mountain canal, and the water supplementing channel is communicated with a water supplementing source area; the system is provided with a water diversion channel connected with a mountain river in parallel, a pump station and a spiral removing pool are sequentially arranged on the water diversion channel, and a trash can and an anti-spiral blocking net are arranged in the spiral removing pool. The canal in the mountain area plays a role in navigation, and the diversion flow of the navigation diversion engineering is conveyed through the diversion channel, so that the difficulty of spiral removal treatment on the navigation canal is avoided. The invention has the advantages of low management cost, small prevention risk and the like, and is suitable for popularization and application in navigation diversion engineering needing to prevent the spreading risk of schistosomiasis.
Description
Technical Field
The invention belongs to the technical field of water conservancy and blood defense, and particularly relates to a spiral removing project of a navigation diversion project.
Background
Schistosomiasis is a serious infectious disease which seriously damages the health of people in China and affects the social and economic development, and has strong infection, multiple transmission links and wide epidemic range. Oncomelania is the biggest disease source carrier of schistosome, is the only intermediate host of schistosome, and practice proves that controlling oncomelania diffusion can effectively block the spread and epidemic of schistosomiasis. The crawling speed of the oncomelania is very slow, the oncomelania is diffused in a long distance mainly by water flow, the oncomelania can be attached to water surface floaters such as dead branches and residual leaves and the like, and can drift along with water, and can also move under the action of the water flow to generate pushing motion, and when the water flow speed is high, the oncomelania can also generate suspending motion in the water.
Along with the development of economy, the demand for water resources is also larger and larger, water is transferred across watercourses and regions, and the water diversion amount of water diversion projects is also gradually increased, so that the risk of diffusion of oncomelania from an epidemic area to a non-epidemic area is greatly increased, for example, the established river diversion and the common river diversion project both have the schistosomiasis diffusion risk. The hydraulic and blood defense engineering refers to engineering measures adopted for preventing and killing the snails in the hydraulic engineering. How to take effective measures to prevent the oncomelania from diffusing through the water diversion engineering is one of the problems which must be solved by water conservancy blood defense. The traditional water conservancy and blood defense engineering measures, in particular to the spiral sedimentation tank, the spiral defense blocking net, the middle layer water intake and other spiral defense technologies play an important role in controlling the diffusion of oncomelania, however, the traditional water conservancy and blood defense engineering measures are implemented in channels without ship passing. In order to develop economy better, some large-scale river-crossing drainage projects also have navigation functions, and the traditional screw blocking technology is difficult to implement at the middle end of the drainage project (namely, the main line of the drainage canal) because ships come and go in the canal. At present, in the river-crossing navigation diversion engineering, water conservancy and blood defense engineering measures are all placed at the head end or the tail end of the navigation diversion engineering, and the main measures comprise: and (3) performing slope hardening on the river bank of the inlet section, arranging a countersunk snail pool at the inlet of the navigation diversion project, arranging anti-snail blocking nets at the tail end of the navigation diversion project, namely on each branch canal, and the like. The water conservancy and blood defense engineering measures generally have wider range, higher management cost and higher risk of oncomelania breaking through the defense line.
Disclosure of Invention
The invention provides a spiral removing project of a navigation diversion project, which aims to overcome the defect that the traditional water conservancy and blood defense project measures cannot remove and prevent spiral at the middle end of the navigation diversion project crossing a river basin.
The technical scheme of the invention is as follows:
the spiral removing project of the navigation diversion project comprises a plain canal with lower topography and a mountain canal positioned in a watershed area of a river basin, wherein two ship locks are arranged on the mountain canal, a water supplementing channel is arranged at the highest altitude of a mountain canal riverbed between the two ship locks, and the water supplementing channel is communicated with a water supplementing source area; the water diversion channel is connected with the mountain river in parallel, two ends of the water diversion channel are communicated with the plain river, a pump station and a spiral shell removing pool are sequentially arranged on the water diversion channel, and a trash pontoon and an anti-spiral blocking net are arranged in the spiral shell removing pool.
Preferably, the average width and the water depth of the spiral removing pond are more than 3 times of the average width and the water depth of the water diversion channel.
Preferably, the water supplementing source is a reservoir, a lake or a mountain river with higher water level.
Preferably, two spiral removing tanks are arranged so as to be used alternately.
The invention has the beneficial effects that:
1. according to the invention, the navigation function and the water diversion function of the navigation diversion project are separated in the watershed area by additionally arranging the water diversion channel connected with the mountain canal, the required navigation water quantity of the mountain canal in charge of navigation is from the watershed area of the watershed, the difficulty of removing the snails on the navigation canal is avoided, the diversion flow of the navigation diversion project is conveyed through the water diversion channel, the snail removal and prevention is only performed in the snail removal pond on the water diversion channel, the prevention range is small, the management cost is low, and the prevention risk is small.
2. The spiral removing pool adopts combined spiral removing measures such as water surface interception of the trash buoy, pool bottom settlement, spiral preventing blocking net Chi Wei interception and the like, combines up and down, and takes care of front and back, thereby not only ensuring effective removal of oncomelania, but also relieving the garbage blocking pressure of the spiral preventing blocking net.
Drawings
Fig. 1 is a schematic structural view of the present invention.
In the figure: 1-1-plain canal A, 1-2-plain canal B, 2-pump station, 3-spiral removing pond, 4-spiral preventing blocking net, 5-drainage channel, 6-trash pontoon, 7-1-ship lock A, 7-2-ship lock B, 8-water supplementing channel, 9-water supplementing water source and 10-mountain canal.
Detailed Description
The invention will be further described with reference to the drawings and examples.
As shown in fig. 1, a spiral removing project of a navigation diversion project comprises a plain canal A1-1 with a lower topography, a plain canal B1-2 and a mountain canal 10 positioned in a watershed area of a river basin, wherein a diversion channel 5 connected with the mountain canal 10 in parallel is excavated in the watershed area of the river basin, the elevation of the river bottom of the mountain canal 10 connected with the diversion channel 5 in parallel is highest in the whole canal, two ship locks 7-1 and 7-2 are arranged on the mountain canal 10, a water supplementing channel 8 is arranged at the highest elevation of the river bed of the mountain canal 10 between the two ship locks 7-1 and 7-2, the water supplementing channel 8 is communicated with a water supplementing source 9, and the water supplementing source 9 is a reservoir, lake or mountain river with higher water level; a pump station 2 and a spiral removing pool 3 are sequentially arranged on the water diversion channel 5, and a trash can 6 and an anti-spiral barrier 4 are arranged in the spiral removing pool 3; the average width and the water depth of the spiral removing pond 3 are more than 3 times of the average width and the water depth of the water diversion channel 5.
In FIG. 1, arrows indicate the direction of water flow, the water flow enters the plain canal A1-1 from the diversion river, water can be pumped by a water pump to raise the canal water level when necessary, one path of the water flow flows to the river basin diversion ridge region, the water flow passes through the diversion channel 5 to cross the river basin diversion ridge region and then flows to the downstream plain canal B1-2, and finally enters the river needing water supplementing, so that the diversion task is completed. The diversion flow of the navigation diversion engineering is totally treated by removing the snail through the snail removing pond 3, a pump station 2 is arranged on the diversion channel 5, water flows into the snail removing pond 3 after being lifted, the snail removing pond 3 is wide and deep, the water flow becomes gentle, heavier garbage and partial snails in the water are settled to the bottom of the pond, a trash pontoon 6 is arranged on the water surface of the snail removing pond 3, floaters in the water and snails adsorbed on the floater are intercepted, and the snails of the left drain net are intercepted by the snail blocking preventing net 4 at the tail end of the snail removing pond 3. The water passing area of the anti-spiral blocking net 4 is larger, so that the water flow resistance of the dirt blocking net is smaller. Two such spiral removing tanks 3 may be provided so as to be alternately used. When one spiral removing pond 3 runs for a long time, the spiral removing pond can be suspended for a period of time, and bottom dredging, water garbage recovery or spiral preventing blocking net 4 replacement can be carried out in the period of time. The ship realizes the passing by means of the ship lock A7-1 and the ship lock B7-2 on the canal, and the water required by the navigation of the mountain canal 10 is supplemented by adopting a water diversion method from a high-altitude water supplementing water source 9 such as a mountain river or a reservoir in the watershed area, and the water flow flows from the middle end of the mountain canal 10 to the plain canal A1-1 and the plain canal B1-2 on the two sides, so that the oncomelania is fundamentally prevented from migrating along one path of the navigation water flow.
Claims (3)
1. The utility model provides a spiral shell project that removes of navigation diversion project, includes plain canal that the topography is lower and is located the mountain area canal in watershed area, its characterized in that: two ship locks are arranged on the mountain canal, and a water supplementing channel is arranged at the highest altitude of the mountain canal bed and is communicated with a water supplementing source; the water diversion channel is connected with the mountain river in parallel, two ends of the water diversion channel are communicated with the plain river, a pump station and a spiral shell removing pool are sequentially arranged on the water diversion channel, and a trash pontoon and an anti-spiral blocking net are arranged in the spiral shell removing pool.
2. The spiral removing project of the navigation diversion project according to claim 1, wherein: the average width and the water depth of the spiral removing pond are more than 3 times of the average width and the water depth of the water diversion channel.
3. The spiral removing project of the navigation diversion project according to claim 1, wherein: the water supplementing source is a reservoir, a lake or a mountain river with higher water level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811157546.2A CN108951530B (en) | 2018-09-30 | 2018-09-30 | Spiral shell removing project of navigation diversion project |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811157546.2A CN108951530B (en) | 2018-09-30 | 2018-09-30 | Spiral shell removing project of navigation diversion project |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108951530A CN108951530A (en) | 2018-12-07 |
| CN108951530B true CN108951530B (en) | 2024-04-16 |
Family
ID=64472746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811157546.2A Active CN108951530B (en) | 2018-09-30 | 2018-09-30 | Spiral shell removing project of navigation diversion project |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108951530B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115012371B (en) * | 2021-10-15 | 2024-01-12 | 长江水利委员会长江科学院 | Side seepage type bending spiral water-taking structure |
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| CN108951530A (en) | 2018-12-07 |
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