CN110055925B - Water storage and sand discharge separation system for large and medium reservoir in flood season of sandy river - Google Patents
Water storage and sand discharge separation system for large and medium reservoir in flood season of sandy river Download PDFInfo
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- CN110055925B CN110055925B CN201910205662.5A CN201910205662A CN110055925B CN 110055925 B CN110055925 B CN 110055925B CN 201910205662 A CN201910205662 A CN 201910205662A CN 110055925 B CN110055925 B CN 110055925B
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- 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
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B7/00—Barrages or weirs; Layout, construction, methods of, or devices for, making same
- E02B7/005—Deformable barrages or barrages consisting of permanently deformable elements, e.g. inflatable, with flexible walls
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B8/00—Details of barrages or weirs ; Energy dissipating devices carried by lock or dry-dock gates
- E02B8/02—Sediment base gates; Sand sluices; Structures for retaining arresting waterborne material
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B8/00—Details of barrages or weirs ; Energy dissipating devices carried by lock or dry-dock gates
- E02B8/06—Spillways; Devices for dissipation of energy, e.g. for reducing eddies also for lock or dry-dock gates
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B9/00—Water-power plants; Layout, construction or equipment, methods of, or apparatus for, making same
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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
- 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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- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Sewage (AREA)
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Abstract
The invention relates to a large and medium reservoir of a sandy river, in particular to a reservoir for solving the problem of insufficient water storage in the later flood season caused by precipitation and sand discharge in the flood season, which belongs to the field of hydraulic engineering, and the IPC classification numbers are E02B1/00 and E02B 3/02. The invention discloses a method for separating water storage and sand discharge in a flood season by building a 'water storage and sand discharge separation system' in a reservoir, wherein a single reservoir area is divided into a water storage area, a sand discharge area and an adjusting area which are communicated with each other through a rubber dam group. The water storage area stores clear water for a long time, and a certain amount of standby water resources can be still stored in the water storage area when the sand discharge area is washed by rainfall; the clean water calling the water storage area or the sand discharge area can be conveniently and flexibly used for generating power by utilizing the adjusting area, and the damage of the coarse sand-containing water flow in the sand discharge area to the power station is prevented. The water storage and sand discharge separation system in the flood season solves the contradiction between the water storage and the promotion of large and medium-sized reservoirs and the flood discharge and sand discharge, and does not influence the overall flood control application of the reservoir in the flood season.
Description
Technical Field
The invention relates to a large and medium reservoir of a sandy river, in particular to a reservoir for solving the problem of insufficient water storage in the later flood season caused by precipitation and sand discharge in the flood season, which belongs to the field of hydraulic engineering, and the IPC classification numbers are E02B1/00 and E02B 3/02.
Background
The large and medium size reservoirs in China have a large number and wide distribution range, and play a great role in the aspects of power generation, irrigation, water supply, flood control and the like. However, over time, the large and medium reservoirs in many sandy rivers have reduced interest-making reservoir capacity due to serious sediment accumulation, and the water storage interest-making capacity is weakened, so that the rain flood resources cannot be effectively utilized. If the mechanical dredging technical means is adopted to discharge all the silt deposited in the reservoir, the cost is high and the time is long. At present, large and medium-sized reservoirs mainly use flood season flood water for sand discharging and silt reducing in a low water level operation mode or flood fighting mode of an empty reservoir in a flood season. The operation of reducing the water level in the flood season is beneficial to the sand discharge of the reservoir, but influences the water storage in the later flood season of the reservoir area, and further influences the function exertion of the reservoir, thereby inducing the contradiction between the flood discharge and sand discharge of the large and medium-sized reservoir and the water storage in the reservoir area. Meanwhile, a large amount of coarse-particle silt is often deposited at the position close to the water inlet of the power station, and when power generation and water diversion are carried out, the deposited silt enters the hydropower station, so that the erosion of a water turbine is serious. At present, large and medium reservoirs of sandy rivers do not have precedent for repairing reservoir capacity by building a water storage area in a reservoir area before a dam for storing clear water for a long time, adjusting water diversion of a power station in an adjusting area and simultaneously lowering water and discharging sand in a sand discharging area.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides the water storage and sand discharge separation system in the flood season, which is convenient to construct, low in cost and high in safety, can effectively reduce sediment accumulation in a reservoir area, obviously increase the effective reservoir capacity of the large and medium reservoir in the sandy river, improve the water storage in the later flood season of the reservoir and contribute to the exertion of the functions of the reservoir. The technical solution of the invention is as follows:
a water storage and sand discharge separation system for a large and medium reservoir of a multi-sand river in a flood season comprises a dam and a retaining dam positioned in a reservoir area of the reservoir, wherein a power station water inlet and a flood discharge and sand discharge building are arranged on the dam; the dam and the retaining dam divide the reservoir area into three parts: a closed reservoir area which is enclosed by the dam and the retaining dam and does not contain the power station water inlet and the flood discharge and sand discharge building is a water storage area; a closed reservoir area which is enclosed by the dam and the retaining dam and contains the water inlet of the power station is a regulating area; and the other reservoir areas are sand discharge areas, and flood discharge and sand discharge buildings of the dam are positioned in the sand discharge areas.
At least one rubber dam is arranged on each of the three water retaining dams around the adjusting area, and at least three rubber dams are arranged on the water retaining dam between the water storage area and the sand discharge area; concrete connecting piles are arranged between the rubber dam bags of the rubber dam and between the rubber dam bags and the adjacent retaining dam.
The dam crest elevation of the retaining dam is the same as the normal water storage level of the dam; the top elevation of the rubber dam bag after being inflated or filled with water is the same as the dam top elevation of the retaining dam.
The invention discloses a water storage and sand discharge separation system of a large and medium reservoir in a sandy river flood season, which has the following invention points:
(1) the construction of the water storage and sand discharge separation system in the flood season enables a traditional single reservoir area to be divided into a water storage area, a sand discharge area and an adjusting area, and the water storage area, the sand discharge area and the adjusting area are communicated through a rubber dam group; the water storage area stores clear water for a long time, and a certain amount of standby water resources can be still stored in the water storage area when the sand discharge area is washed by rainfall, so that the waste of a large amount of water resources caused by the reduction of the whole water level of the single reservoir area is reduced, and a standby water source is provided for the reduction of upstream incoming water after rainfall. The adjusting area can conveniently and flexibly call the clear water in the water storage area or the sand discharge area to generate electricity, and the damage of the coarse sand-containing water flow in the sand discharge area to the power station is prevented once and for all. The 'water storage and sand discharge separation system in the flood season' solves the contradiction between the water storage and the promotion of large and medium-sized reservoirs and the flood discharge and sand discharge, and does not influence the overall flood control application in the flood season of the reservoirs.
(2) When flood is discharged in a flood season, a gate of the flood-discharging and sand-discharging building is opened, flood water in the sand-discharging area pulls sand, the sediment silt body is discharged out of the reservoir area through the flood-discharging and sand-discharging building, and the effective reservoir capacity of the sand-discharging area is increased year by year; the water storage area mainly stores clear water, so that less sediment is deposited, and the sediment can be discharged by a manual dredging method; the water storage and sand discharge separation system in the flood season is convenient to construct, economical and practical, and solves the problems of high integral dredging cost and long duration of the large and medium reservoir of the sandy river.
(3) After the flood season, the overall water level of the traditional single reservoir area is low, and the full play of the functions of power generation, irrigation and the like is influenced; after the 'water storage and sand discharge separation system in the flood season' is built, the height of the rubber dam in the adjusting area is adjusted, so that the power station can directly use stored clean water from the water storage area to generate power, supply water to downstream for irrigation, and simultaneously prevent coarse sand from passing through the machine. Through the ingenious design of the adjusting area, when the water level of the sand discharge area is high, the sand content is low, and the water body meets the machine passing requirement, the power station preferentially guides water from the sand discharge area to generate power.
(4) The 'water storage and sand discharge separation system in the flood season' is designed in the reservoir area in front of the dam, so that the dependence of engineering construction on topographic conditions is obviously reduced, the construction is safer and more convenient, and the influence of sediment accumulation in front of the dam on water diversion of a power station and urban water supply is reduced; adopt rubber dam group intercommunication water storage area, arrange husky district and regulatory region, economical and practical controls efficiently.
The water storage and sand discharge separation system in the flood season ensures that the reservoir capacity of the silt and the damaged reservoir is effectively recovered, prevents coarse sand from passing through the machine, maintains the safety performance of the power station unit, obviously improves the utilization rate of water resources in the reservoir area, has simple principle, convenient operation, safety, reliability, economy and practicability, and has higher practical value for reducing silt in the large and medium-sized reservoir of the sandy river.
Drawings
FIG. 1 is a plane layout diagram of a water storage and sand discharge separation system in flood season;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is a cross-sectional view B-B of FIG. 1;
FIG. 4 is a cross-sectional view taken at C-C of FIG. 1 (the rubber dam bag is inflated or filled with water);
FIG. 5 is a cross-sectional view C-C of FIG. 1 (rubber dam bag vented or drained);
FIG. 6 is a longitudinal sectional view of a rubber dam employed in the present invention in an inflated or water-filled state;
fig. 7 is a longitudinal sectional view of a rubber dam used in the present invention in a state of air discharge or water discharge.
Wherein, 1 is the dam, 2 is the power station water inlet, 3 is flood discharge desilting building, 4 is flood discharge desilting building gate, 5 is the retaining dam, 6 is the concrete connection stake, 7 is rubber dam sack, 8 is the concrete connection post, 9 is anchoring device, 10 is the impoundment district, 11 is rubber dam A, 12 is rubber dam B, 13 is rubber dam C, 14 is rubber dam D, 15 is rubber dam E, 16 is rubber dam F, 17 is the desilting district, 18 is the regulation district.
Detailed Description
The present invention is described in detail below with reference to the accompanying drawings.
The utility model provides a big-and-middle-sized reservoir flood season retaining desilting piece-rate system of many husky rivers, includes dam 1 and the manger plate dam 5 that is located reservoir area, be equipped with power station water inlet 2 and flood discharge desilting building 3 on dam 1 be equipped with flood discharge desilting building gate 4 on the flood discharge desilting building 3. The dam 1 and the retaining dam 5 divide the reservoir area into three parts: a closed reservoir area which is enclosed by the dam 1 and the retaining dam 5 and does not contain the power station water inlet 2 and the flood discharge and sand discharge building 3 is a water storage area 10; a closed reservoir area which is enclosed by the dam 1 and the retaining dam 5 and contains the power station water inlet 2 is a regulating area 18; the other reservoir areas are sand discharge areas 17, and the flood discharge and sand discharge building 3 of the dam 1 is positioned in the sand discharge areas 17.
The elevation of the top of the retaining dam 5 is the same as the normal water storage level of the dam 1, and concrete connecting columns 8 are built at the corner joints of the retaining dam 5 in different arrangement directions. The retaining dam is characterized in that a plurality of rubber dams are arranged on the retaining dam 5, rubber dam bags 7 of the rubber dams are fixedly arranged at the top of the retaining dam 5 through anchoring devices 9, and concrete connecting piles 6 are arranged between the rubber dam bags 7 and between the adjacent rubber dam bags 7 and the retaining dam 5 so as to stabilize the rubber dam bags 7. And in the place where the rubber dam bag 7 is arranged on the retaining dam 5, the dam crest elevation of the retaining dam 5 is lower than the elevations of other parts of the retaining dam 5, so that the crest elevation of the rubber dam bag 7 after being inflated or filled with water is the same as the normal water storage level of the dam 1. The concrete connecting piles 6, the mounting elevations of the rubber dam bag 7, the positions and scales of the concrete connecting columns 8 and the water storage area 10 can be calculated by professional technicians in the field according to actual requirements and design specifications according to the conditions of the characteristic water level of the dam 1, upstream water and sand conditions, reservoir geological conditions and the like, and the method belongs to the prior art and is not repeated.
In this embodiment, three water dams 5 around the adjusting area 18 are respectively provided with a rubber dam, which is a rubber dam a 11, a rubber dam B12 and a rubber dam C13; and three rubber dams, namely a rubber dam D14, a rubber dam E15 and a rubber dam F16 are arranged on the water retaining dam 5 between the water storage area 10 and the sand discharge area 17. The power station water inlet 2 can selectively lead water from the impoundment area 10 or the sand discharge area 17 to generate electricity through the adjusting area 18. Inflating or filling water into the dam bag of the rubber dam A11 to enable the height of the dam bag to be increased, and isolating the water storage area 10 from the adjusting area 18; at this time, the dam bags of the rubber dam B12 and the rubber dam C13 are exhausted or drained to reduce the height of the dam bags, and the power station water inlet 2 can directly guide water from the sand drainage area 17 to generate power.
And exhausting or draining the dam bag of the rubber dam A11 to reduce the height of the dam bag, inflating or filling the dam bags of the rubber dam B12 and the rubber dam C13 to increase the height of the dam bags, wherein the water storage area 10 is communicated with the adjusting area 18, and the water inlet 2 of the power station can directly guide water from the water storage area 10 to generate power. The positions and the lengths of the rubber dam A11, the rubber dam B12 and the rubber dam C13 can be determined according to the position of the power station water inlet 2, the scale of the impoundment area 10 and the like, and details are not repeated here. The flood discharging and sand discharging building 3 of the dam 1 is not contained in the impoundment area 10 and the adjustment area 18, and is entirely located in the sand discharging area 17.
The rubber dam A, the rubber dam B, the rubber dam C, the rubber dam D, the rubber dam E and the rubber dam F are all the same type of rubber dam, wherein the numbers A to F only represent the difference of the positions.
The number of rubber dams and their specifications are not limited to those listed in the embodiments of the present invention, and can be determined by those skilled in the art according to the actual water supply and storage requirements and by using the existing techniques.
The operation mode of the water storage and sand discharge separation system of the large and medium size reservoir in the flood season of the sandy river is as follows: when the water level of the water storage area 10 is low and water needs to be stored, the dam bag of the rubber dam A11 is inflated or filled with water, the height of the dam bag is increased to a normal water storage level, then the dam bags of the rubber dam D14, the rubber dam E15 and the rubber dam F16 are exhausted or drained, the height of the dam crest of the dam bag is reduced to be lower than the upstream water level, upstream water above the dam bag height of the rubber dam D14, the rubber dam E15 and the rubber dam F16 enters the water storage area 10, and according to the water depth distribution rule of silt, the water entering the water storage area 10 is clean water with low silt content. When the water level of the water storage area 10 gradually rises to a normal water storage level, the heights of the dam bags of the rubber dam D14, the rubber dam E15 and the rubber dam F16 are gradually increased to the normal water storage level, so that the water level of the clear water stored in the water storage area 10 is still kept at the normal water storage level when the upstream incoming water is reduced.
When the water is lowered before a flood, the dam bag heights of the rubber dam A11, the rubber dam D14, the rubber dam E15 and the rubber dam F16 in the water storage area 10 are located at a normal water storage level, so that the clear water stored in the water storage area 10 is located at the normal water storage level. And exhausting or draining the dam bags of the rubber dam B12 and the rubber dam C13 to reduce the height of the dam bags to the lowest height, wherein the adjusting area 18 is communicated with the sand draining area 17, the flood discharging and sand draining building gate 4 is opened, and the water level of the sand draining area 17 is gradually reduced. At this time, because the silt content of the water body in the sand discharge area 17 is not high, the water diversion port 2 of the power station can directly divert water from the sand discharge area 17 for power generation.
When flood discharge and sand pulling are carried out in a flood season, the dam bag heights of the rubber dam A11, the rubber dam D14, the rubber dam E15 and the rubber dam F16 in the water storage area 10 are located at a normal water storage level, so that the clear water stored in the water storage area 10 is located at the normal water storage level. At this time, since the sand discharge area 17 is mostly muddy water, in order to prevent a large amount of silt from passing through the machine, the dam bag heights of the rubber dam B12 and the rubber dam C13 are inflated or filled with water, so that the heights of the dam bags are raised to the highest level, the adjusting area 18 is isolated from the sand discharge area 17, and the power station water inlet 2 does not guide water from the sand discharge area 17 any more. And opening the flood discharge and sand discharge building gate 4, and draining water and sand through the flood discharge and sand discharge building 3 to reduce the sediment deposition of the sand discharge area 17 and recover the sediment loss reservoir capacity.
When a flood is forecasted to occur at the upstream, all dam bags of the rubber dam A11, the rubber dam B12, the rubber dam C13, the rubber dam D14, the rubber dam E15 and the rubber dam F16 are exhausted or drained, the height of the dam bags is reduced to the lowest height, the flood and sand discharging building gate 4 is opened, and the water storage area 10, the adjusting area 18 and the sand discharging area 17 participate in flood control scheduling together.
When a reservoir undertakes water using tasks such as power generation, downstream irrigation and the like, if the water level elevation and the sediment content of the sand discharge area 17 meet the machine passing requirements, the adjusting area 18 is isolated from the water storage area 10 but communicated with the sand discharge area 17, and the water inlet 2 of the power station preferentially selects to lead water from the sand discharge area 17; otherwise, the dam bags of the rubber dam B12 and the rubber dam C13 are inflated or filled with water, the heights of the dam bags are raised to the highest elevation, and the dam bags of the rubber dam A11 are exhausted or drained, so that the heights of the dam bags are lowered to the water level calculated according to the water using task; the conditioning area 18 is in communication with the impoundment area 10 and is isolated from the sand discharge area 17. The clean water stored in the water storage area 10 enters the water inlet 2 of the power station through the rubber dam A11 to finish the water transfer task. And finally discharging the sediment accumulation body in the water storage area 10 in a manual dredging mode.
Under the condition of ensuring that sediment accumulation in the reservoir area is reduced, the invention solves the problems of contradiction between water storage interest promotion and flood discharge and sediment discharge in the large and medium reservoir area of the sandy river and high cost and long duration of integral desilting of the reservoir area by establishing the water storage and sediment discharge separation system in the flood season. The silt reduction machine has the advantages that the silt loss storage capacity is recovered, the coarse sand is prevented from passing through the machine, the utilization rate of water resources in a reservoir area is obviously improved, the principle is simple, the operation is convenient, the safety and the reliability are high, the economy and the practicability are realized, and the silt reduction machine has high practical value for water storage and silt reduction of large and medium-sized reservoirs of multi-sand rivers.
Claims (1)
1. The utility model provides a big-and-middle-sized reservoir flood season of sandy river retaining desilting piece-rate system which characterized in that includes: the water-saving and sand-discharging dam comprises a dam (1) and a retaining dam (5) positioned in a reservoir area, wherein a power station water inlet (2) and a flood-discharging and sand-discharging building (3) are arranged on the dam (1); the dam (1) and the retaining dam (5) divide the reservoir area into three parts: a closed reservoir area which is enclosed by the dam (1) and the retaining dam (5) and does not comprise the power station water inlet (2) and the flood discharge and sand discharge building (3) is a water storage area (10); a closed reservoir area which is enclosed by the dam (1) and the retaining dam (5) and contains the power station water inlet (2) is a regulating area (18); the other reservoir areas are sand discharge areas (17), and the flood discharge and sand discharge building (3) of the dam (1) is positioned in the sand discharge areas (17);
three water retaining dams (5) around the adjusting area (18) are respectively provided with a rubber dam A (11), a rubber dam B (12) and a rubber dam C (13); three rubber dams, namely a rubber dam D (14), a rubber dam E (15) and a rubber dam F (16), are arranged on the water retaining dam (5) between the water storage area (10) and the sand discharge area (17);
concrete connecting piles (6) are arranged between the rubber dam bags (7) of the rubber dam A (11), the rubber dam B (12), the rubber dam C (13), the rubber dam D (14), the rubber dam E (15) and the rubber dam F (16) and between the rubber dam bag (7) and the adjacent retaining dam (5);
the elevation of the top of the retaining dam (5) is the same as the normal water storage level of the dam (1); the top elevation of the rubber dam bag (7) after being inflated or filled with water is the same as the dam top elevation of the water retaining dam (5);
the power station water inlet (2) selects to draw water from the water storage area (10) or the sand discharge area (17) through the adjusting area (18) to generate electricity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910205662.5A CN110055925B (en) | 2019-03-18 | 2019-03-18 | Water storage and sand discharge separation system for large and medium reservoir in flood season of sandy river |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910205662.5A CN110055925B (en) | 2019-03-18 | 2019-03-18 | Water storage and sand discharge separation system for large and medium reservoir in flood season of sandy river |
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| CN110055925A CN110055925A (en) | 2019-07-26 |
| CN110055925B true CN110055925B (en) | 2021-06-29 |
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| CN201910205662.5A Active CN110055925B (en) | 2019-03-18 | 2019-03-18 | Water storage and sand discharge separation system for large and medium reservoir in flood season of sandy river |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112982274A (en) * | 2021-03-02 | 2021-06-18 | 黄河勘测规划设计研究院有限公司 | Desilting method for restoring reservoir sediment storage capacity by utilizing daily incoming water |
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| JP2001073349A (en) * | 1999-09-02 | 2001-03-21 | Kansai Electric Power Co Inc:The | Method and facility for discharging sand from reservoir |
| CN102134844A (en) * | 2010-01-21 | 2011-07-27 | 孟顺利 | Automatic dredging and desilting system for rubber dam |
| CN103882838A (en) * | 2014-02-27 | 2014-06-25 | 黄河水利委员会黄河水利科学研究院 | Sediment releasing method for water intake of low-head river channel pivotal power station |
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| KR20160095811A (en) * | 2015-02-04 | 2016-08-12 | 최영환 | Multipurpose Dam For Preventing Water Pollution |
| CN207436013U (en) * | 2017-11-03 | 2018-06-01 | 商丘市梁园区水利局 | A kind of reservoir |
| CN108755617A (en) * | 2018-06-01 | 2018-11-06 | 四川旭昊德环保设备有限公司 | A kind of reservoir row silt system and method |
| CN108842716A (en) * | 2018-07-11 | 2018-11-20 | 李建英 | A kind of comprehensive permanent device for persistently removing water storage reservoir area silt sediment |
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2019
- 2019-03-18 CN CN201910205662.5A patent/CN110055925B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001073349A (en) * | 1999-09-02 | 2001-03-21 | Kansai Electric Power Co Inc:The | Method and facility for discharging sand from reservoir |
| CN102134844A (en) * | 2010-01-21 | 2011-07-27 | 孟顺利 | Automatic dredging and desilting system for rubber dam |
| CN103882838A (en) * | 2014-02-27 | 2014-06-25 | 黄河水利委员会黄河水利科学研究院 | Sediment releasing method for water intake of low-head river channel pivotal power station |
| CN103938578A (en) * | 2014-02-27 | 2014-07-23 | 黄河水利委员会河南黄河河务局 | Silting reduction system for heavily silt-carrying river reservoir |
| KR20160095811A (en) * | 2015-02-04 | 2016-08-12 | 최영환 | Multipurpose Dam For Preventing Water Pollution |
| CN207436013U (en) * | 2017-11-03 | 2018-06-01 | 商丘市梁园区水利局 | A kind of reservoir |
| CN108755617A (en) * | 2018-06-01 | 2018-11-06 | 四川旭昊德环保设备有限公司 | A kind of reservoir row silt system and method |
| CN108842716A (en) * | 2018-07-11 | 2018-11-20 | 李建英 | A kind of comprehensive permanent device for persistently removing water storage reservoir area silt sediment |
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| CN110055925A (en) | 2019-07-26 |
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