CN105089006A - Siltation reduction system for reservoir - Google Patents
Siltation reduction system for reservoir Download PDFInfo
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- CN105089006A CN105089006A CN201410214729.9A CN201410214729A CN105089006A CN 105089006 A CN105089006 A CN 105089006A CN 201410214729 A CN201410214729 A CN 201410214729A CN 105089006 A CN105089006 A CN 105089006A
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Abstract
The invention provides a siltation reduction system for a reservoir, relates to a general water conservancy project, and in particular to system engineering for reducing siltation of the reservoir of heavily silt-carrying rivers. The IPC (International Patient Classification) of the siltation reduction system is No. E02B1/00 and No. E02B9/02. According to the system, a submerged sediment control dam is built in the reservoir to divide the reservoir into a clear water reservoir region and a muddy water reservoir region, a sand conveying culvert is adopted to discharge water flow containing sand far away from the upstream of the dam out of the reservoir, dual purposes of water storage of the reservoir and sand discharging are achieved, and the reservoir precipitation erosion distance is widened; tiny particle silt turning over the submerged sediment control dam to the reservoir region before the dam is discharged out of the reservoir through dam flood discharging tunnels in a submersible sand pump reservoir dredging manner; and for wide, shallow and curved deposition forms in the watercourses of the reservoir regions, smooth and straight reservoir river channels beneficial to density flow transport are built in a submersible sand pump sand-excavating dredging manner, and the natural sand discharging effect is improved. The siltation reduction system is suitable for heavily silt-carrying river reservoir building and deposited waste reservoir reformation engineering.
Description
Technical field:
The present invention relates to a kind of general hydraulic engineering, particularly a kind of system engineering for reducing reservoir sedimentation, its IPC international Patent classificating number E02B1/00, E02B9/02, belongs to Water Resources Domain.
Background technology:
Along with the development of economic society, the development and utilization demand of the mankind to river is increasing, river is built water-control project get more and more, As time goes on and extend, a lot of reservoir significantly reduces because of Sediment Siltation problem retaining usefulness, especially quite a few reservoir of heavily silt-carrying river loses normal water storage function because of serious Sediment Siltation, the dam built for the emerging profit of retaining originally and ancillary building also therefore ineffective, cause the serious waste of resource; Simultaneously, along with the mankind are to the undying exploitation in river, dam site river being suitable for build reservoir is fewer and feweri, can not meet the requirement of social development to water resources development and utilization far away, needs further development and utilization water resource to support the sustainable development of economic society; On the other hand; along with Environmental protection strengthens and the improvement of people's living standard; water and soil conservation obtains incremental advances and remarkable result; in addition utilization utilizes and the continuous propelling of filling out and making ground of becoming silted up; the amount of sediment entering reservoir obviously reduces, and utilizing reservoir natural sand discharging to maintain reservoir sustainable utilization in conjunction with the husky desilting of excavated by manual work becomes possibility.Mostly water control project was that building dam formed single reservoir in the past, mainly utilize minimum capacity of a reservoir sediment trapping and discharging by density current, the husky desilting of simple reservoir excavated by manual work also carried out by indivedual reservoir, but the key water control project not also being combined formation clear water and muddy water two reservoir areas at present by building dam, submerged sediment control dam is each other built or transforms precedent, reservoir desilting is not had to discharge the precedent outside storehouse by dam necessary structure yet.
Summary of the invention:
The present invention, in order to solve deficiency of the prior art, provides the system of the minimizing reservoir on hyperconcentration river Sediment Siltation that a kind of construction cost is lower, easy and simple to handle, safety is high.
The technical solution used in the present invention is: a kind of reservoir subtract silt system, be included in dam upstream and build submerged sediment control dam, reservoir is separated into front and back two parts, wherein, be clear water reservoir area between dam and submerged sediment control dam, submerged sediment control dam upstream is muddy water reservoir area; Described submerged sediment control dam is arranged into sand drift road, described enter front end, sand drift road regulating gate is set, at described regulating gate forward position setting pressure sensor, on-line monitoring submerged sediment control dam forward position Sediment Siltation situation; Pressure sensor is connected with gate automatic open and close control system;
Between dam and submerged sediment control dam, build sediment transport culvert, service shaft well built by described sediment transport culvert; Utilize described sediment transport culvert by described enter sand drift road be communicated with the desilting tunnel of dam;
A set of diving sand pump desilting system is respectively laid in clear water reservoir area and muddy water reservoir area, be respectively used to extract clear water reservoir area fine sediment alluvial body and muddy water reservoir area Sediment Siltation body, described diving sand pump desilting system comprises diving sand pump ship, remote sediment delivery pipe and is connected to the spoil disposal flexible pipe of described remote sediment delivery pipe rear end, described remote sediment delivery pipe arranges buoyancy aid every a segment distance, described remote sediment delivery pipe is floated on the surface; Wherein, be laid in the diving sand pump desilting system of clear water reservoir area, its diving sand pump ship is arranged near submerged sediment control dam downstream; Choose the import maintenance gate slot of certain flood discharging tunnel on dam, described maintenance gate slot installs a perforate gate, the described spoil disposal flexible pipe of the described diving sand pump desilting system being laid in clear water reservoir area is connected in the perforate of perforate gate.
Reservoir on hyperconcentration river of the present invention subtracts silt system, submerged sediment control dam is built in reservoir area, conventional libraries is divided into muddy water and upper and lower two storehouses of clear water, utilize clear water reservoir area between submerged sediment control dam and dam to build sediment transport culvert to realize reservoir filling and precipitation and wash away the reservoir operation of neglecting neither and use, to be docked with dam desilting tunnel by sediment transport culvert and reservoir sand inlet moved forward to convenient and be beneficial to silt carrying flow and drain in the reservoir area that exports, and utilize be arranged on submerged sediment control dam enter sand drift banister in front of the door pressure sensor to Sediment Siltation situation on-line monitoring and information response before submerged sediment control dam, automatic control and coordinate desilting tunnel and enter the gate opening/closing work of sand drift road, reservoir is discharged in the real-time silt carrying flow of being collected by submerged sediment control dam, expand reservoir precipitation headcut scour scope, improve reservoir sand-flash effect.The situation of likely turning over excessive submerged sediment control dam for the density current entering reservoir, causing clear water reservoir area to deposit on a small quantity, clear water reservoir area diving sand pump desilting system is laid in design.This cover is utilized to subtract silt system, in the emerging profit phase that reservoir filling uses desilting tunnel Service gate to close, the perforate gate of design is utilized to replace dam flood-discharge hole import Emergency Gate, by the UNICOM of diving sand pump spoil disposal flexible pipe by perforate gate, linkage and dam flood-discharge hole, automation synchronous manipulation sand pump is dredged and flood discharging tunnel work, the co-ordination of Emergency Gate headstock gear, the a small amount of fine sediment entering clear water reservoir area is dug discharge reservoir, ensures clear water storage capacity long term maintenance; Likely occur being unfavorable for the sedimentation formation problem of silt carrying flow to the movement of submerged sediment control dam sand inlet for the front river course of submerged sediment control dam, utilize diving sand pump to dig husky river training, mould and be conducive to the defeated straight riverbed moved, density current reservoir area, sand discharge to river course, reservoir area both sides raceway groove or depression carries out silt and fills out and make ground on the one hand; Also can sand discharge to submerged sediment control dam sand inlet, realize the object outside reservoir non-flood period desilting spoil disposal storehouse by sediment transport culvert.Whole system is easy and simple to handle, safe and reliable, is highly suitable for reservoir on hyperconcentration river and builds and waste and old reservoir reconstruction engineering of depositing, have extremely strong application value and replicability.
Accompanying drawing illustrates:
Fig. 1 of the present inventionly subtracts each building and implantation of device schematic diagram in silt system;
Fig. 2 is the linkage schematic diagram that in Fig. 1, in maintenance gate slot, perforate gate is connected with spoil disposal flexible pipe.
In figure, dam 1, maintenance gate slot 2, flood discharging tunnel 3, desilting tunnel 4, sediment transport culvert 5, submerged sediment control dam 6, enter sand drift road 7, muddy water reservoir area Sediment Siltation body 8, clear water reservoir area fine sediment alluvial body 9, perforate gate 10, linkage 11, spoil disposal flexible pipe 12, diving sand pump ship 13, remote sediment delivery pipe 14, hyper-concentration flow 15, remote sediment delivery pipe by-pass valve control 16, buoyancy aid 17.
Detailed description of the invention:
Below in conjunction with Fig. 1 and Fig. 2, the silt system that subtracts of reservoir of the present invention is elaborated.
Build submerged sediment control dam 6 in dam 1 upstream, reservoir is separated into front and back two parts, wherein, be clear water reservoir area between dam 1 and submerged sediment control dam 6, submerged sediment control dam 6 upstream is muddy water reservoir area.The position of submerged sediment control dam 6 and crest elevation, according to the emerging sharp water level of dam, enter the situations such as storehouse flow and sediment, riverbed, reservoir area geology and form, and those skilled in the art according to prior art and design specifications, can determine by calculating, repeating no more here.Described submerged sediment control dam 6 is arranged into sand drift road 7, described enter front end, sand drift road 7 regulating gate is set, at described regulating gate forward position setting pressure sensor, on-line monitoring submerged sediment control dam 6 forward position Sediment Siltation situation; Pressure sensor is connected with gate automatic open and close control system.Enter quantity and the specification size in sand drift road 7, determine according to reservoir capacity, sand content etc.
Between dam 1 and submerged sediment control dam 6, build sediment transport culvert 5, service shaft well built by described sediment transport culvert 5; Utilize described sediment transport culvert 5 by described enter sand drift road 7 be communicated with the part desilting tunnel 4 of dam 1.Dam on reservoir on hyperconcentration river, generally many desilting tunnel 4 are all built, method of the present invention, the number entering sand drift road 7 generally can be less than the number of drainage tunnel, therefore, only wherein part desilting tunnel 4 need be selected to be communicated with described sediment transport culvert 5, the mode of connection, be generally the corresponding sediment transport culvert 5 of a desilting tunnel 4.
A set of diving sand pump desilting system is respectively laid in clear water reservoir area and muddy water reservoir area, be respectively used to extract clear water reservoir area fine sediment alluvial body 9 and muddy water reservoir area Sediment Siltation body 8, often overlap the spoil disposal flexible pipe 12 that described diving sand pump desilting system comprises diving sand pump ship 13, remote sediment delivery pipe 14 and is connected to described remote sediment delivery pipe 14 rear end, described remote sediment delivery pipe 14 arranges buoyancy aid 17 every a segment distance, described remote sediment delivery pipe 14 is floated on the surface.Due to the water crossing submerged sediment control dam 6 enter clear water reservoir area time, silt wherein mainly deposits near submerged sediment control dam 6, therefore, is laid in the diving sand pump desilting system of clear water reservoir area, and its diving sand pump ship 13 is arranged near submerged sediment control dam 6 downstream.Choose the import maintenance gate slot 2 of certain flood discharging tunnel 3 on dam 1, described maintenance gate slot 2 installs a perforate gate 10, replace conventional Emergency Gate, perforate gate 10 is provided with perforate, linkage 11 is utilized to be connected in the perforate of perforate gate 10 by the described spoil disposal flexible pipe 12 of the described diving sand pump desilting system being laid in clear water reservoir area, the object of this linkage 11 is connected as one spoil disposal flexible pipe 12 and perforate gate 10, and perforate can be closed completely, make perforate gate 10 water-tight, those skilled in the art can be easy to make according to actual needs, its this manual of concrete structure repeats no more.
This cover subtracts the method for operation of silt system: during flood discharge in flood season, described in enter sand drift road 7 described regulating gate be held open, dam flood-discharge hole 3 is also all opened, and the silt of reservoir area siltation is washed away rapidly, discharges from desilting tunnel 4 and flood discharging tunnel 3; Carry out precipitation before flood when washing away, described in enter sand drift road 7 described regulating gate be held open, flood discharging tunnel 3 is partly or entirely closed, and muddy water reservoir area Sediment Siltation body 8 is discharged by described desilting tunnel;
During non-flood period reservoir filling, flood discharging tunnel 3 Close All on the described regulating gate of submerged sediment control dam 6 and dam 1, the Sediment Siltation situation in submerged sediment control dam 6 forward position gives described gate automatic open and close control system by pressure sensor real-time Transmission, when the pressure caused when depositing reaches the limit value of setting, described gate automatic open and close control system opens described regulating gate, and silt passes through to discharge into sand drift road 7 and sediment transport culvert 5.When there is clear water reservoir area fine sediment alluvial body 9, start described clear water reservoir area diving sand pump desilting system, the high sand-carrying water of extraction flows through the perforate of described perforate gate 10, discharges from flood discharging tunnel 3;
When muddy water reservoir area Sediment Siltation body 8 appears in submerged sediment control dam 6 upstream, be unfavorable for silt carrying flow to submerged sediment control dam 6 enter sand drift road 7 move time, start the described diving sand pump desilting system being laid in muddy water reservoir area, for extracting muddy water reservoir area Sediment Siltation body 8, silt is drained into river course, reservoir area both sides raceway groove or depression, mould and be conducive to the defeated straight riverbed moved, density current reservoir area, carry out silt simultaneously and fill out with making; Or sand discharge is entered near sand drift road 7 to submerged sediment control dam 6, realizes reservoir non-flood period desilting sand discharge by sediment transport culvert 5.
Claims (1)
1. reservoir on hyperconcentration river subtract a silt system, be included in dam upstream and build submerged sediment control dam, reservoir is separated into front and back two parts, wherein, be clear water reservoir area between dam and submerged sediment control dam, submerged sediment control dam upstream is muddy water reservoir area; Described submerged sediment control dam is arranged into sand drift road, described enter front end, sand drift road regulating gate is set, at described regulating gate forward position setting pressure sensor, on-line monitoring submerged sediment control dam forward position Sediment Siltation situation; Pressure sensor is connected with gate automatic open and close control system;
Between dam and submerged sediment control dam, build sediment transport culvert, service shaft well built by described sediment transport culvert; Utilize described sediment transport culvert by described enter sand drift road be communicated with the desilting tunnel of dam;
A set of diving sand pump desilting system is respectively laid in clear water reservoir area and muddy water reservoir area, be respectively used to extract clear water reservoir area fine sediment alluvial body and muddy water reservoir area Sediment Siltation body, described diving sand pump desilting system comprises diving sand pump ship, remote sediment delivery pipe and is connected to the spoil disposal flexible pipe of described remote sediment delivery pipe rear end, described remote sediment delivery pipe arranges buoyancy aid every a segment distance, described remote sediment delivery pipe is floated on the surface; Wherein, be laid in the diving sand pump desilting system of clear water reservoir area, its diving sand pump ship is arranged near submerged sediment control dam downstream; Choose the import maintenance gate slot of certain flood discharging tunnel on dam, described maintenance gate slot installs a perforate gate, the described spoil disposal flexible pipe of the described diving sand pump desilting system being laid in clear water reservoir area is connected in the perforate of perforate gate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410214729.9A CN105089006A (en) | 2014-05-21 | 2014-05-21 | Siltation reduction system for reservoir |
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| CN201410214729.9A CN105089006A (en) | 2014-05-21 | 2014-05-21 | Siltation reduction system for reservoir |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106193160A (en) * | 2016-07-18 | 2016-12-07 | 王兴奎 | A kind of mole lifts sandbox automatic sand discharging and silt efficient utilization device |
| CN109778798A (en) * | 2019-03-12 | 2019-05-21 | 黄河勘测规划设计研究院有限公司 | Multi-stage porous pipe weir shunts and warps method |
| CN111058416A (en) * | 2018-10-16 | 2020-04-24 | 成秉功 | Reservoir repair system |
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| CN1067084A (en) * | 1992-06-04 | 1992-12-16 | 黄国宏 | Silt partition method in the Hydraulic and Hydro-Power Engineering |
| CN2273737Y (en) * | 1994-07-04 | 1998-02-04 | 曾民先 | Moveable suction dredger for reservoir and rivers |
| CN1182817A (en) * | 1996-11-19 | 1998-05-27 | 冯灿周 | Method for quick harnessing wide river course silted by mud and sand |
| JP4594748B2 (en) * | 2005-01-19 | 2010-12-08 | 大成建設株式会社 | Dam sediment removal support method and dam sediment removal support system |
| CN103938591A (en) * | 2014-02-27 | 2014-07-23 | 黄河水利委员会河南黄河河务局 | Method for reducing heavily silt-carrying river reservoir deposition |
| 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 |
| CN203904907U (en) * | 2014-04-27 | 2014-10-29 | 天津虹炎科技有限公司 | A silt reduction system for a reservoir |
-
2014
- 2014-05-21 CN CN201410214729.9A patent/CN105089006A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1067084A (en) * | 1992-06-04 | 1992-12-16 | 黄国宏 | Silt partition method in the Hydraulic and Hydro-Power Engineering |
| CN2273737Y (en) * | 1994-07-04 | 1998-02-04 | 曾民先 | Moveable suction dredger for reservoir and rivers |
| CN1182817A (en) * | 1996-11-19 | 1998-05-27 | 冯灿周 | Method for quick harnessing wide river course silted by mud and sand |
| JP4594748B2 (en) * | 2005-01-19 | 2010-12-08 | 大成建設株式会社 | Dam sediment removal support method and dam sediment removal support system |
| CN103938591A (en) * | 2014-02-27 | 2014-07-23 | 黄河水利委员会河南黄河河务局 | Method for reducing heavily silt-carrying river reservoir deposition |
| 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 |
| CN203904907U (en) * | 2014-04-27 | 2014-10-29 | 天津虹炎科技有限公司 | A silt reduction system for a reservoir |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106193160A (en) * | 2016-07-18 | 2016-12-07 | 王兴奎 | A kind of mole lifts sandbox automatic sand discharging and silt efficient utilization device |
| CN111058416A (en) * | 2018-10-16 | 2020-04-24 | 成秉功 | Reservoir repair system |
| CN109778798A (en) * | 2019-03-12 | 2019-05-21 | 黄河勘测规划设计研究院有限公司 | Multi-stage porous pipe weir shunts and warps method |
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