CN115492049B - Water conservancy ecological slope protection and construction method - Google Patents
Water conservancy ecological slope protection and construction method Download PDFInfo
- Publication number
- CN115492049B CN115492049B CN202211179873.4A CN202211179873A CN115492049B CN 115492049 B CN115492049 B CN 115492049B CN 202211179873 A CN202211179873 A CN 202211179873A CN 115492049 B CN115492049 B CN 115492049B
- Authority
- CN
- China
- Prior art keywords
- fixedly connected
- filter screen
- floating plate
- rotating shaft
- plate
- 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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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 21
- 238000010276 construction Methods 0.000 title claims description 7
- 238000004140 cleaning Methods 0.000 claims abstract description 10
- 239000010802 sludge Substances 0.000 claims description 8
- 239000002689 soil Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims 1
- 230000003139 buffering effect Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 238000009991 scouring Methods 0.000 description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 230000010405 clearance mechanism Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/12—Revetment of banks, dams, watercourses, or the like, e.g. the sea-floor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
- B01D29/56—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/88—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
- B01D29/94—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for discharging the filter cake, e.g. chutes
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Cleaning Or Clearing Of The Surface Of Open Water (AREA)
Abstract
The invention discloses a water conservancy ecological slope protection, which comprises the following steps: a rectangular frame in a grid shape; the filter screens are fixedly arranged in the rectangular frame at equal intervals; the floating plate is fixedly provided with a connecting plate at the right end of the bottom surface, and a plurality of water seepage holes are formed in the floating plate; the connecting plate is fixedly connected with the sliding plate; the sliding rail is fixedly connected with the filter screen and is in sliding connection with the sliding plate; the silt cleaning mechanism is arranged on the floating plate; the frame fixing mechanism is arranged at the bottom of the rectangular frame. The effect of preventing rain wash is mainly achieved in that firstly, when rain falls, the rain hits the floating plate, the floating plate can play a role in buffering, so that the rain does not directly wash the ground, and secondly, when the rain flows along a river bank side slope, the rain passes through the filter screen, and silt in the rain is trapped by the filter screen.
Description
Technical Field
The invention relates to the field of slope protection, in particular to a water conservancy ecological slope protection and a construction method.
Background
The slope protection refers to a collective term of various paving and planting on the slope surface of a river in order to prevent the side slope from being washed. The slope protection forms have direct protection and indirect protection. The direct protection is to directly strengthen the river bank slope to resist the flushing and brushing of water flow. Construction of polished stones, dry masonry, grouted masonry, gabions, and tip bundles is commonly used. The indirect protection is suitable for river sections with wider riverbed or larger protection length, and can build a spur dike, a downstream dike, a check dam and the like to pick water flow off the river bank.
The existing slope protection is mostly used for preventing river scouring, however, among many reasons of water and soil loss, the scouring of rainwater to a river bank slope is one of important reasons, the slope is impacted when the rainwater falls, the slope is scoured again when the rainwater flows along the slope to the river direction, and the damage of water and soil loss caused by the slope is not inferior to that caused by river scouring.
Therefore, it is necessary to design a slope protection for preventing rain wash.
Disclosure of Invention
The invention aims to provide a water conservancy ecological slope protection and a construction method, which aim to solve the technical problems.
The invention aims to solve the technical problems, and is realized by adopting the following technical scheme:
a water conservancy ecological slope protection comprising: a rectangular frame in a grid shape; the filter screens are fixedly arranged in the rectangular frame at equal intervals; the floating plate is fixedly provided with a connecting plate at the right end of the bottom surface, and a plurality of water seepage holes are formed in the floating plate; the connecting plate is fixedly connected with the sliding plate; the sliding rail is fixedly connected with the filter screen and is in sliding connection with the sliding plate; the silt cleaning mechanism is arranged on the floating plate; the frame fixing mechanism is arranged at the bottom of the rectangular frame.
Preferably, the sludge cleaning mechanism comprises: the rotary drum is fixedly arranged at the top of the floating plate; the rotary drum is sleeved on the first rotating shaft, the rotary drum is rotationally connected with the first rotating shaft, and a first bevel gear is fixedly sleeved at the bottom of the first rotating shaft; the second rotating shaft is positioned below the floating plate, a second bevel gear is fixedly sleeved on the second rotating shaft, and the second bevel gear is meshed with the first bevel gear; the auger blade is fixedly wound on the second rotating shaft; and the driving assembly is arranged at the top of the first rotating shaft.
Preferably, the sludge cleaning mechanism further comprises: the first bearing is sleeved at the lower end of the first rotating shaft, the inner ring of the first bearing is fixedly connected with the first rotating shaft, and the outer ring of the first bearing is fixedly connected with the rectangular frame.
Preferably, the sludge cleaning mechanism further comprises: the second bearing is sleeved at the right end of the second rotating shaft, the outer ring of the second bearing is fixedly connected with the sliding rail, and the inner ring of the second bearing is fixedly connected with the second rotating shaft.
Preferably, the driving assembly includes: the wind cups are fixedly connected with the upper end of the first rotating shaft through connecting rods.
Preferably, the frame fixing mechanism includes: the fixed cylinder is fixedly connected with the rectangular frame; the inserted link, the inserted link is located fixed section of thick bamboo, inserted link and fixed section of thick bamboo threaded connection.
Preferably, the frame fixing mechanism further includes: the plug is fixedly connected with the bottom of the inserted link through the connecting column.
Preferably, the frame fixing mechanism further includes: the grooves are formed in the front side and the rear side of the inserted link; the top of the limiting rod is connected with the inner wall of the groove through a hinge; and one end of the spring is fixedly connected with the inner wall of the groove, and the other end of the spring is fixedly connected with the limiting rod.
Preferably, a rotary table is fixedly arranged at the top of the inserted link.
The beneficial effects of the invention are as follows:
1. the effect of preventing rain erosion mainly appears in the invention, firstly, when rain falls, the rain hits the floating plate, the floating plate can play a buffering role, so that the rain can not directly wash the ground, secondly, when the rain flows along the river bank slope, the rain passes through the filter screen, the silt in the rain is trapped by the filter screen, the third silt is accumulated at the bottom of the filter screen to block the filter screen more and more, thus the effect similar to a dyke can be played, the flow rate of the rain is delayed, the rain can infiltrate into the ground for a long time, in addition, as the silt is accumulated at the bottom of the filter screen, the water level of the rain flowing on the river bank slope is raised, the rain drives the floating plate to rise, the floating plate drives the slide plate to rise, the area of the filter screen which is not blocked by the slide plate is enlarged, and part of the rain can pass through the filter screen.
2. When the wind is blown up after rain is stopped, the wind cup rotates around the first rotating shaft, so that the auger blades synchronously rotate to move the sludge accumulated at the bottom of the filter screen in a direction away from the filter screen, and excessive sludge accumulated at the bottom of the filter screen is prevented.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is an enlarged schematic view of portion A of FIG. 1;
FIG. 3 is an enlarged schematic view of portion B of FIG. 1;
FIG. 4 is an enlarged schematic view of portion C of FIG. 1;
FIG. 5 is a side view of the bayonet of FIG. 3;
reference numerals: 1. a rectangular frame; 2. a floating plate; 3. a filter screen; 4. a turntable; 6. a fixed cylinder; 7. a rod; 8. a second bearing; 9. auger blades; 10. a connecting plate; 11. a second bevel gear; 12. a first bearing; 13. a first bevel gear; 14. a second rotating shaft; 15. water seepage holes; 16. a rotating drum; 17. a wind cup; 18. a connecting rod; 19. a first rotating shaft; 20. a slide plate; 21. a slide rail; 22. a groove; 23. a limit rod; 24. a hinge; 25. a connecting column; 27. a plug; 28. and (3) a spring.
Detailed Description
In order that the manner in which the above recited features, objects and advantages of the present invention are obtained, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings. Based on the examples in the embodiments, those skilled in the art can obtain other examples without making any inventive effort, which fall within the scope of the invention.
Specific embodiments of the present invention are described below with reference to the accompanying drawings.
Example 1
As shown in fig. 1 to 5, a hydraulic ecological slope protection includes: a rectangular frame 1 having a grid shape; the filter screens 3 are fixedly arranged in the rectangular frame 1 at equal intervals; the floating plate 2 is provided with a connecting plate 10 at the right end of the bottom surface of the floating plate 2, and a plurality of water seepage holes 15 are formed in the floating plate 2; the sliding plate 20 is fixedly connected with the connecting plate 10 and the sliding plate 20; the sliding rail 21 is fixedly connected with the filter screen 3, and the sliding rail 21 is in sliding connection with the sliding plate 20; the silt cleaning mechanism is arranged on the floating plate 2; the frame fixing mechanism is arranged at the bottom of the rectangular frame 1.
The frame fixing mechanism includes: the fixed cylinder 6 is fixedly connected with the rectangular frame 1; the top of the inserted link 7 is fixedly provided with a rotary table 4, the inserted link 7 is positioned in the fixed cylinder 6, and the inserted link 7 is in threaded connection with the fixed cylinder 6; the plug 27 is fixedly connected with the bottom of the inserted link 7 through a connecting column 25; the grooves 22 are formed in the front side and the rear side of the inserted link 7; the top of the limiting rod 23 is connected with the inner wall of the groove 22 through a hinge 24; and one end of the spring 28 is fixedly connected with the inner wall of the groove 22, and the other end of the spring 28 is fixedly connected with the limiting rod 23.
Working principle: placing the rectangular frame 1 on a river slope, rotating the rotary table 4, and driving the inserting rod 7 to rotate by the rotary table 4, so that the inserting rod 7 moves downwards to be inserted into the soil, and fixing the rectangular frame 1 on the river slope; when raining, rainwater falls on the floating plate 2, the floating plate 2 can play a role in buffering, so that the rainwater can not directly wash the ground, then flows onto a river slope surface through the water seepage holes 15, then flows along the river slope surface in the river direction, when the rainwater passes through the filter screen 3, and the silt in the rainwater is trapped by the filter screen 3; as the silt is accumulated at the bottom of the filter screen 3 and is higher and higher to block the filter screen 3, the silt can play a role similar to a dam, the flow rate of rainwater is delayed, so that the rainwater can infiltrate into the ground for a certain time, in addition, as the silt is accumulated at the bottom of the filter screen 3, the water level of the rainwater flowing in the river direction is increased, the rainwater drives the floating plate 2 to rise, the floating plate 2 drives the sliding plate 20 to rise, the area of the filter screen 3 which is not blocked by the sliding plate 20 is enlarged, and the rainwater can pass through the filter screen 3;
example 2
As shown in fig. 1 to 5, in the case where the other portions are the same as in embodiment 1, this embodiment differs from embodiment 1 in that: the silt clearance mechanism includes: a rotary drum 16, wherein the rotary drum 16 is fixedly arranged at the top of the floating plate 2; the rotary drum 16 is sleeved on the first rotary shaft 19, the rotary drum 16 is rotationally connected with the first rotary shaft 19, and a first bevel gear 13 is fixedly sleeved at the bottom of the first rotary shaft 19; the second rotating shaft 14 is positioned below the floating plate 2, a second bevel gear 11 is fixedly sleeved on the second rotating shaft 14, and the second bevel gear 11 is meshed with the first bevel gear 13; the auger blade 9, the auger blade 9 is fixedly wound on the second rotating shaft 14; a drive assembly mounted on top of the first shaft 19; the lower end of the first bearing 12 and the lower end of the first rotating shaft 19 are sleeved with the first bearing 12, the inner ring of the first bearing 12 is fixedly connected with the first rotating shaft 19, and the outer ring of the first bearing 12 is fixedly connected with the rectangular frame 1; the second bearing 8 is sleeved on the right end of the second rotating shaft 14, the outer ring of the second bearing 8 is fixedly connected with the sliding rail 21, and the inner ring of the second bearing 8 is fixedly connected with the second rotating shaft 14. The drive assembly includes: the wind cups 17 are fixedly connected with the upper ends of the first rotating shafts 19 through connecting rods 18.
Working principle: when the wind starts up after the rain stops, the wind blows the wind cup 17, the wind cup 17 rotates around the first rotating shaft 19, the wind cup 17 drives the first rotating shaft 19 to rotate through the connecting rod 18, the first rotating shaft 19 drives the second rotating shaft 14 to rotate through the first bevel gear 13 and the second bevel gear 11, and the second rotating shaft 14 drives the auger blade 9 to rotate, so that the auger blade 9 can synchronously rotate to move the sludge accumulated at the bottom of the filter screen 3 in a direction away from the filter screen 3, and excessive sludge accumulation at the bottom of the filter screen 3 is prevented.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present invention, and are not intended to limit the invention, and that various changes and modifications may be made therein without departing from the spirit and scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a water conservancy ecology bank protection which characterized in that: comprising the following steps:
a grid-shaped rectangular frame (1);
the filter screens (3) are fixedly arranged in the rectangular frame (1) at equal intervals;
the floating plate (2), the right end of the bottom surface of the floating plate (2) is fixedly provided with a connecting plate (10), and a plurality of water seepage holes (15) are formed in the floating plate (2);
the connecting plate (10) is fixedly connected with the sliding plate (20);
the sliding rail (21), the said sliding rail (21) is fixedly connected with filter screen (3), the said sliding rail (21) is connected with slide plate (20) slidably;
the silt cleaning mechanism is arranged on the floating plate (2);
the frame fixing mechanism is arranged at the bottom of the rectangular frame (1);
the silt cleaning mechanism includes:
the rotary drum (16), the rotary drum (16) is fixedly arranged at the top of the floating plate (2);
the rotary drum (16) is sleeved on the first rotary shaft (19), the rotary drum (16) is rotationally connected with the first rotary shaft (19), and a first bevel gear (13) is fixedly sleeved at the bottom of the first rotary shaft (19);
the second rotating shaft (14) is positioned below the floating plate (2), a second bevel gear (11) is fixedly sleeved on the second rotating shaft (14), and the second bevel gear (11) is meshed with the first bevel gear (13);
the auger blade (9) is fixedly wound on the second rotating shaft (14);
a drive assembly mounted on top of the first shaft (19);
the silt cleaning mechanism further comprises:
the lower end of the first rotating shaft (19) is sleeved with the first bearing (12), the inner ring of the first bearing (12) is fixedly connected with the first rotating shaft (19), and the outer ring of the first bearing (12) is fixedly connected with the rectangular frame (1);
the silt cleaning mechanism further comprises:
the right end of the second rotating shaft (14) is sleeved with a second bearing (8), the outer ring of the second bearing (8) is fixedly connected with a sliding rail (21), and the inner ring of the second bearing (8) is fixedly connected with the second rotating shaft (14);
the drive assembly includes:
the wind cups (17) are fixedly connected with the upper ends of the first rotating shafts (19) through connecting rods (18).
2. A hydraulic ecological slope protection according to claim 1, wherein: the frame fixing mechanism includes:
the fixed cylinder (6), the said fixed cylinder (6) is fixedly connected with rectangular frame (1);
the inserting rod (7) is positioned in the fixed cylinder (6), and the inserting rod (7) is in threaded connection with the fixed cylinder (6).
3. A hydraulic ecological slope protection according to claim 2, characterized in that: the frame fixing mechanism further includes:
the plug (27) is fixedly connected with the bottom of the inserted link (7) through the connecting column (25).
4. A hydraulic ecological slope protection according to claim 3, wherein: the frame fixing mechanism further includes:
the grooves (22) are formed in the front side and the rear side of the inserted link (7);
the top of the limiting rod (23) is connected with the inner wall of the groove (22) through a hinge (24);
and one end of the spring (28) is fixedly connected with the inner wall of the groove (22), and the other end of the spring (28) is fixedly connected with the limiting rod (23).
5. The hydraulic ecological slope protection according to claim 4, wherein: the top of the inserted link (7) is fixedly provided with a rotary table (4).
6. The construction method of the hydraulic ecological slope protection according to claim 5, wherein the construction method comprises the following steps: the method comprises the following steps:
a: placing the rectangular frame (1) on a river slope, rotating the rotary table (4), and driving the inserting rod (7) to rotate by the rotary table (4) so that the inserting rod (7) moves downwards to be inserted into the soil, and fixing the rectangular frame (1) on the river slope;
b: when raining, rainwater falls on the floating plate (2), flows onto the river slope surface through the water seepage holes (15), flows along the river slope surface and flows in the river direction, and when the rainwater passes through the filter screen (3), and silt in the rainwater is trapped by the filter screen (3);
c: as the silt is accumulated at the bottom of the filter screen (3) and blocks the filter screen (3), the water level of the rainwater flowing in the river direction is increased, so that the rainwater drives the floating plate (2) to ascend, the floating plate (2) drives the sliding plate (20) to ascend, the area of the filter screen (3) which is not blocked by the sliding plate (20) is enlarged, and the rainwater passes through the filter screen (3);
d: when the wind starts after the rain stops, the wind cup (17) rotates around the first rotating shaft (19), so that the auger blades (9) synchronously rotate to move the sludge accumulated at the bottom of the filter screen (3) in a direction away from the filter screen (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211179873.4A CN115492049B (en) | 2022-09-27 | 2022-09-27 | Water conservancy ecological slope protection and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211179873.4A CN115492049B (en) | 2022-09-27 | 2022-09-27 | Water conservancy ecological slope protection and construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115492049A CN115492049A (en) | 2022-12-20 |
| CN115492049B true CN115492049B (en) | 2023-10-13 |
Family
ID=84471487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211179873.4A Active CN115492049B (en) | 2022-09-27 | 2022-09-27 | Water conservancy ecological slope protection and construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115492049B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212175684U (en) * | 2020-04-09 | 2020-12-18 | 浙江锦华建设有限公司 | River course gabion structure slope type ecological revetment |
| CN212865795U (en) * | 2020-06-16 | 2021-04-02 | 上海帅腾环保科技有限公司 | Slope protection structure for preventing water and soil loss |
| CN213476762U (en) * | 2020-10-10 | 2021-06-18 | 李泽槟 | Ecological slope protection structure for hydraulic engineering |
| CN215210858U (en) * | 2021-07-29 | 2021-12-17 | 朱以明 | Ecological bank protection that water utilized |
| CN114000464A (en) * | 2021-10-04 | 2022-02-01 | 魏冬梓 | Hydraulic engineering bank protection device |
| CN217419502U (en) * | 2021-11-18 | 2022-09-13 | 华北水利水电大学 | River bank purification barrier for yellow river channel treatment |
-
2022
- 2022-09-27 CN CN202211179873.4A patent/CN115492049B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212175684U (en) * | 2020-04-09 | 2020-12-18 | 浙江锦华建设有限公司 | River course gabion structure slope type ecological revetment |
| CN212865795U (en) * | 2020-06-16 | 2021-04-02 | 上海帅腾环保科技有限公司 | Slope protection structure for preventing water and soil loss |
| CN213476762U (en) * | 2020-10-10 | 2021-06-18 | 李泽槟 | Ecological slope protection structure for hydraulic engineering |
| CN215210858U (en) * | 2021-07-29 | 2021-12-17 | 朱以明 | Ecological bank protection that water utilized |
| CN114000464A (en) * | 2021-10-04 | 2022-02-01 | 魏冬梓 | Hydraulic engineering bank protection device |
| CN217419502U (en) * | 2021-11-18 | 2022-09-13 | 华北水利水电大学 | River bank purification barrier for yellow river channel treatment |
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| Publication number | Publication date |
|---|---|
| CN115492049A (en) | 2022-12-20 |
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