CN104452656A - River channel segmental desilting construction method - Google Patents
River channel segmental desilting construction method Download PDFInfo
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- CN104452656A CN104452656A CN201410689295.8A CN201410689295A CN104452656A CN 104452656 A CN104452656 A CN 104452656A CN 201410689295 A CN201410689295 A CN 201410689295A CN 104452656 A CN104452656 A CN 104452656A
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- mud
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- 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
- E02B3/02—Stream regulation, e.g. breaking up subaqueous rock, cleaning the beds of waterways, directing the water flow
- E02B3/023—Removing sediments
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- General Engineering & Computer Science (AREA)
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- Ocean & Marine Engineering (AREA)
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- Treatment Of Sludge (AREA)
Abstract
The invention discloses a river channel segmental desilting construction method, and belongs to the technical field of river channel regulation. According to the river channel segmental desilting construction method, a river channel is segmented, flexible dams are constructed respectively, silt deposition ditches are excavated in front of dam bodies, and silt at the bottom of the river channel is treated by using the water head difference generated after dam construction and water flow impact force generated after water gates are opened for drawing off water. The structural form of the self-floating type dam bodies is adopted in the river channel segmental desilting construction method, the flexible dams can descend automatically according to variations of the river water level, then segmental treatment is conducted, and therefore deposition conditions of the silt can be improved easily; the drainage gates are used in cooperation with the segmental silt deposition ditches, so that the silt deposition efficiency is improved while the water is drained; net-shaped cover plates are arranged above the silt deposition ditches to be used for shielding impurities and protecting personal security; inorganic composite agents are added for conducting innocent treatment on the silt, so that secondary pollution is prevented from being caused to the environment in the process of recycling the soil body; water drainage and solidification of the silt are accelerated, so that the treatment efficiency of the silt is improved.
Description
Technical field
The invention belongs to river regulation technical field, be specifically related to a kind of river course segmentation Dredging Construction method.
Background technology
China's water environment is faced with many-sided pressure such as water pollution, shortage of water resources and flood.Water pollution exacerbates shortage of water resources, and water ecological environment destroys and impels flood to take place frequently.The pollution of water body mainly comes from human social development process, comprise industry, agricultural, life various aspects produced pollution thing cause, solve the pollution of water body, will control pollution from source on the one hand, the exploitation of pollution clean-up technology will be carried out on the other hand exactly.Water pollution be mainly reflected in river pollution, the river of pollution not only loses resource function and use value, and the environmental landscape around heavy damage, even jeopardizes the health of river resident.River pollution is mainly because a large amount of pollutants is through accumulation year in year out, precipitate and be accumulated in bed mud, be adsorbed on pollutant in sediment particles and pore water exchanges, thus outwards discharge pollutant, cause the secondary pollution of water body, and a large amount of bed muds is the hotbed that microorganism provides breeding, exacerbate the pollution in river.Therefore, in the regulation process in river course, the cleaning of bed mud is extremely important.
If channel cleanout adopts, traditional hydraulic engineering technology and equipment power consumption is high, efficiency is low, construction is slow, and therefore people are constantly developing various effective, practical, workable river course Removal Technology.Following method is had: 1) by subsection setup zanjon with construct rubber dam to carry out regular cleaning technology to river bottom mud in prior art, but rubber dam is not easily constructed, belong to fixed point engineering, desilting work can not be carried out to whole river course, simple air-dry process is just carried out to mud, processing time is longer, does not carry out harmless treatment to the pollutant in mud, easily causes the secondary pollution in periphery place in use procedure; 2) by arranging Drain contamination for river channel pipe, earth dam is constructed in segmentation, cleaning pollutant method, the method constructional difficulties, operation inconvenience, and the processing time is long, can not ensure its validity processed and persistence; 3) supercharging device (large pump) is utilized to rinse river bottom mud in upstream, river course, change the physical arrangement of low-quality, utilize nethike embrane filtration method to be discharged by tiny mud in downstream, river course simultaneously, leach white garbage plastics and large contaminated sediment, modification Resource recoveryization utilize, the method needs subsection setup supercharging device, and need to work long hours, do not set special mud gathering system, processing time and costly, process for mud is not obvious, helpful to the change of water ecology; 4) plant equipment is adopted to carry out the method for riverway sludge cleaning, although these method structures are simple, easy to operate, but in use maintenance process simulation cost is higher for it, because plant equipment itself is comparatively huge, roomy and dark river course can only be applicable to, inapplicable for more shallow and narrow river.
Summary of the invention
Goal of the invention: the object of the present invention is to provide a kind of river course segmentation Dredging Construction method, improve validity and the flexibility of channel cleanout, the method is not only simple and practical, and construction is flexibly, with low cost, and workable.
Technical scheme: for achieving the above object, the present invention adopts following technical scheme:
A method for river course segmentation Dredging Construction, comprises the following steps:
1) carry out river survey, segmentation, every segment distance is 800 ~ 1000m;
2) at the long-pending silt ditch of segmentation place excavation, the degree of depth of long-pending silt ditch is 1.5 ~ 2.5m, installs the netted cover plate for blocking foreign material and protection personal security at the end face of long-pending silt ditch;
3) construct for the drainage gate sluiced respectively in two sides, river course;
4) between the drainage gate of two sides, river course, build flexible dam, flexible dam can with river automatic lifting, and the maximum height of automatic lifting equals the extreme high water in river;
5) build sludge treatment pond on bank, river course, be provided with gutter, outside gutter, wrap up geomembrane bottom sludge treatment pond, gutter forms loop in inside, sludge treatment pond;
6) regularly carry out discharging water of drainage gate, downstream mud flows under water impact effect, deposits in the long-pending silt ditch in another segmentation of downstream;
7) regularly carry out the collection of mud in long-pending silt ditch, and enter in sludge treatment pond;
8) in sludge treatment pond, admix inorganic composite type medicament and carry out silt harmless process;
9) moisture in mud shine upon with gravity double action under respectively from its surface and underdrain hole discharged by gutter, when mud water content is less than 40%, mud is transported out sludge treatment pond, uses as recyclable resource;
10) step 7) ~ 9 are repeated), until the mud of whole section has been cleared up.
In step 3), described drainage gate top exceeds flood level height 1m, exceeds 0.5m bottom riverbed bottom the drainage outlet of drainage gate.
In step 4), described flexible dam is self-floating type flexible dam, is connected bottom it with both sides by anchor pole with press strip with ground and drainage gate, and top is connected by the ground of wire rope with dam body front; Vertical fence is provided with in dam body front.
In step 5), the volume in described sludge treatment pond is at 50 ~ 100m
3, the degree of depth is 2 ~ 3m.
Beneficial effect: compared with prior art, river course segmentation Dredging Construction method tool of the present invention has the following advantages:
1) flexible dam construction method is simple, quick detachable, and adopts self-floating dam structure form, can change and automatic lifting, then carry out segment processing, be beneficial to the sedimentary condition improving mud according to river water level;
2) drainage gate coordinates segmentation to amass the use of silt ditch, improves long-pending silt efficiency, above long-pending silt ditch, be provided with netted cover plate while draining, for blocking foreign material and protection personal security;
3) by adding inorganic composite type medicament, harmless treatment being carried out to mud, avoiding the secondary pollution that the soil body causes environment in recycling process;
4) be provided with the gutter of crisscross connection bottom sludge treatment pond, outside gutter, wrap up geomembrane, in conjunction with shining upon, accelerating the discharging consolidation of mud, improving the treatment effeciency of mud.
Accompanying drawing explanation
Fig. 1 is river course plan view;
Fig. 2 is the river course sectional drawing of ordinary water level state;
Fig. 3 is sludge treatment pond sectional drawing;
Fig. 4 is the part sectioned view of gutter.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described further.
As shown in Fig. 1 ~ 4, prepare, in the river course of desilting, to be provided with vertical fence 9 in the upstream of flexible dam 1, drainage gate 5 is arranged on the both sides of flexible dam 1, be provided with long-pending silt ditch 3 in the upstream of flexible dam 1, long-pending silt ditch 3 covers netted cover plate 4, mud 2 falls into long-pending silt ditch 3 through netted cover plate 4.Flexible dam 1 is also equipped with sludge treatment pond 6, is provided with gutter 7 in sludge treatment pond 6, at the outside of gutter 7 parcel geomembrane 8, is provided with the gully-hole 10 for discharging mud 2 moisture in the bottom in sludge treatment pond 6.
The method of river course segmentation Dredging Construction, comprises the following steps:
1) carry out river survey, segmentation, every segment distance is 800 ~ 1000m;
2) at the long-pending silt ditch 3 of segmentation place excavation, the degree of depth of long-pending silt ditch 3 is 1.5 ~ 2.5m, installs the netted cover plate 4 for blocking foreign material and protection personal security at the end face of long-pending silt ditch 3;
3) construct respectively in two sides, river course for the drainage gate 5 sluiced, drainage gate 5 top exceeds flood level height 1m, exceeds 0.5m bottom riverbed bottom drainage outlet;
4) between the drainage gate 5 of two sides, river course, build flexible dam 1, flexible dam 1 can change and automatic lifting according to river water level, and the maximum height of automatic lifting equals the extreme high water in river;
5) build sludge treatment pond 6 on bank, river course, be provided with crisscross connection gutter 7, wrap up geomembrane 8 outside gutter 7 bottom sludge treatment pond 6, gutter 7 forms loop in inside, sludge treatment pond 6; The volume in sludge treatment pond 6 is at 50 ~ 100m
3, the degree of depth 2 ~ 3m;
6) regularly carry out discharging water of drainage gate 5, downstream mud 2 flows under water impact effect, deposits in the long-pending silt ditch 3 in another segmentation of downstream;
7) regularly carry out the collection of mud 2 in long-pending silt ditch 3, and enter in sludge treatment pond 6;
8) in sludge treatment pond 6, admix inorganic composite type medicament and carry out mud 2 harmless treatment;
9) moisture in mud 2 shine upon with gravity double action under respectively from its surface and underdrain hole 10 discharged by gutter 7, when mud 2 water content is less than 40%, mud 2 is transported out sludge treatment pond 6, uses as recyclable resource;
10) step 7 ~ 9 are repeated, until the mud 2 of whole section has been cleared up.
Wherein, in step 4), flexible dam 1 is self-floating type flexible dam, is connected bottom it with both sides by anchor pole with press strip with ground and drainage gate 5, and top is connected by the ground of wire rope with dam body front; Vertical fence 9 is provided with in dam body front.
Claims (4)
1. a method for river course segmentation Dredging Construction, is characterized in that, comprises the following steps:
1) carry out river survey, segmentation, every segment distance is 800 ~ 1000m;
2) at the long-pending silt ditch (3) of segmentation place excavation, the degree of depth of long-pending silt ditch (3) is 1.5 ~ 2.5m, installs the netted cover plate (4) for blocking foreign material and protection personal security at the end face of long-pending silt ditch (3);
3) construct respectively in two sides, river course for the drainage gate (5) sluiced;
4) between the drainage gate (5) of two sides, river course, build flexible dam (1), flexible dam (1) can with river automatic lifting, and the maximum height of automatic lifting equals the extreme high water in river;
5) build sludge treatment pond (6) on bank, river course, be provided with gutter (7) in sludge treatment pond (6) bottom, at gutter (7) outside parcel geomembrane (8), gutter (7) forms loop in sludge treatment pond (6) inside;
6) regularly carry out discharging water of drainage gate (5), downstream mud (2) flows under water impact effect, deposits in the long-pending silt ditch (3) in another segmentation of downstream;
7) regularly carry out the collection of the interior mud of long-pending silt ditch (3) (2), and enter in sludge treatment pond (6);
8) in sludge treatment pond (6), admix inorganic composite type medicament and carry out mud (2) harmless treatment;
9) moisture in mud (2) shine upon with gravity double action under respectively from its surface and underdrain hole (10) discharged by gutter (7), when mud (2) water content is less than 40%, mud (2) is transported out sludge treatment pond (6), uses as recyclable resource;
10) step 7) ~ 9 are repeated), until the mud of whole section (2) has been cleared up.
2. the method for segmentation Dredging Construction in river course according to claim 1, is characterized in that: in step 3), and described drainage gate (5) top exceeds flood level height 1m, exceeds 0.5m bottom riverbed bottom the drainage outlet of drainage gate (5).
3. the method for segmentation Dredging Construction in river course according to claim 1, it is characterized in that: in step 4), described flexible dam (1) is self-floating type flexible dam, be connected with ground and drainage gate (5) with press strip by anchor pole with both sides bottom it, top is connected by the ground of wire rope with dam body front; Vertical fence (9) is provided with in dam body front.
4. the method for segmentation Dredging Construction in river course according to claim 1, is characterized in that: in step 5), and the volume in described sludge treatment pond (6) is at 50 ~ 100m
3, the degree of depth is 2 ~ 3m.
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105421288A (en) * | 2015-11-20 | 2016-03-23 | 中国电建集团贵阳勘测设计研究院有限公司 | Large reservoir disc reservoir silt beach sand flushing structure and construction method thereof |
| CN107460847A (en) * | 2016-04-27 | 2017-12-12 | 南通大学 | Reduce soil erosion, the method suitable for river network in plain areas water and soil conservation |
| CN109024749A (en) * | 2018-09-20 | 2018-12-18 | 苏州希克曼物联技术有限公司 | Accrete clearing device and its dredging method are dug in small punching in the scouring type river bottom mud waterpower that drops |
| CN109111065A (en) * | 2018-08-07 | 2019-01-01 | 上海久树环境科技有限公司 | A kind of riverbed ecology synthesis restorative procedure |
| CN110485378A (en) * | 2019-07-23 | 2019-11-22 | 中国科学院南京地理与湖泊研究所 | A kind of stage type urban river water retains system |
| CN110528612A (en) * | 2019-08-27 | 2019-12-03 | 中国建筑一局(集团)有限公司 | Urban underground river dredging system and construction method for dredging by using same |
| CN111335383A (en) * | 2020-04-03 | 2020-06-26 | 广州市璞境生态保护技术有限公司 | Black and odorous water body dredging system and method |
| CN112391994A (en) * | 2020-11-25 | 2021-02-23 | 中铁北京工程局集团有限公司 | Construction process for mechanically removing floating mud in lake area |
| CN112482299A (en) * | 2020-10-19 | 2021-03-12 | 广州建筑股份有限公司 | Construction method based on water system area field transformation |
| CN112523160A (en) * | 2020-08-31 | 2021-03-19 | 济南金宇公路产业发展有限公司 | River water ecological management method |
| CN113233723A (en) * | 2021-05-11 | 2021-08-10 | 中国水利水电第五工程局有限公司 | Dredging method capable of improving dredging effect of river channel |
| CN115094822A (en) * | 2022-06-22 | 2022-09-23 | 海峡建工集团有限公司 | River channel treatment system and river channel transformation method thereof |
| CN116145610A (en) * | 2023-02-14 | 2023-05-23 | 中国电建集团贵阳勘测设计研究院有限公司 | Ecological dismantling and ecological restoration method for sediment accumulation reservoir |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005030070A (en) * | 2003-07-14 | 2005-02-03 | Ohbayashi Corp | Flowing-down promoting dam structure and flowing-down promoting method of deposit sediment in dam water reservoir |
| CN101967821A (en) * | 2010-10-19 | 2011-02-09 | 上海交通大学 | Dredged sediment dewatering and drying stockyard and establishment method thereof |
| CN102877497A (en) * | 2012-08-02 | 2013-01-16 | 上海市离心机械研究所有限公司 | River channel desilting method |
| CN203346870U (en) * | 2013-07-03 | 2013-12-18 | 中交天津港航勘察设计研究院有限公司 | Drainage device of dredging hydraulic fill storage yards of high-organic-content rivers and lakes |
| CN103669281A (en) * | 2013-12-16 | 2014-03-26 | 重庆大学 | Method for assisting in fixed-point dredging of black and odorous watercourse through rubber dams |
-
2014
- 2014-11-26 CN CN201410689295.8A patent/CN104452656B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005030070A (en) * | 2003-07-14 | 2005-02-03 | Ohbayashi Corp | Flowing-down promoting dam structure and flowing-down promoting method of deposit sediment in dam water reservoir |
| CN101967821A (en) * | 2010-10-19 | 2011-02-09 | 上海交通大学 | Dredged sediment dewatering and drying stockyard and establishment method thereof |
| CN102877497A (en) * | 2012-08-02 | 2013-01-16 | 上海市离心机械研究所有限公司 | River channel desilting method |
| CN203346870U (en) * | 2013-07-03 | 2013-12-18 | 中交天津港航勘察设计研究院有限公司 | Drainage device of dredging hydraulic fill storage yards of high-organic-content rivers and lakes |
| CN103669281A (en) * | 2013-12-16 | 2014-03-26 | 重庆大学 | Method for assisting in fixed-point dredging of black and odorous watercourse through rubber dams |
Non-Patent Citations (1)
| Title |
|---|
| 陈金枝: "橡胶坝与闸坝联合应用工程实例", 《水利科技》, 30 December 2005 (2005-12-30), pages 14 - 17 * |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105421288A (en) * | 2015-11-20 | 2016-03-23 | 中国电建集团贵阳勘测设计研究院有限公司 | Large reservoir disc reservoir silt beach sand flushing structure and construction method thereof |
| CN107460847A (en) * | 2016-04-27 | 2017-12-12 | 南通大学 | Reduce soil erosion, the method suitable for river network in plain areas water and soil conservation |
| CN107460847B (en) * | 2016-04-27 | 2019-03-05 | 南通大学 | Reduce soil erosion, suitable for the method for river network in plain areas water and soil conservation |
| CN109111065A (en) * | 2018-08-07 | 2019-01-01 | 上海久树环境科技有限公司 | A kind of riverbed ecology synthesis restorative procedure |
| CN109024749A (en) * | 2018-09-20 | 2018-12-18 | 苏州希克曼物联技术有限公司 | Accrete clearing device and its dredging method are dug in small punching in the scouring type river bottom mud waterpower that drops |
| CN109024749B (en) * | 2018-09-20 | 2023-08-08 | 苏州希克曼物联技术有限公司 | Drop flushing type river bottom mud force medium and small flushing dredging device and dredging method thereof |
| CN110485378B (en) * | 2019-07-23 | 2020-07-31 | 中国科学院南京地理与湖泊研究所 | Two-stage river water impoundment system |
| CN110485378A (en) * | 2019-07-23 | 2019-11-22 | 中国科学院南京地理与湖泊研究所 | A kind of stage type urban river water retains system |
| CN110528612A (en) * | 2019-08-27 | 2019-12-03 | 中国建筑一局(集团)有限公司 | Urban underground river dredging system and construction method for dredging by using same |
| CN111335383A (en) * | 2020-04-03 | 2020-06-26 | 广州市璞境生态保护技术有限公司 | Black and odorous water body dredging system and method |
| CN112523160A (en) * | 2020-08-31 | 2021-03-19 | 济南金宇公路产业发展有限公司 | River water ecological management method |
| CN112482299A (en) * | 2020-10-19 | 2021-03-12 | 广州建筑股份有限公司 | Construction method based on water system area field transformation |
| CN112391994A (en) * | 2020-11-25 | 2021-02-23 | 中铁北京工程局集团有限公司 | Construction process for mechanically removing floating mud in lake area |
| CN113233723A (en) * | 2021-05-11 | 2021-08-10 | 中国水利水电第五工程局有限公司 | Dredging method capable of improving dredging effect of river channel |
| CN115094822A (en) * | 2022-06-22 | 2022-09-23 | 海峡建工集团有限公司 | River channel treatment system and river channel transformation method thereof |
| CN115094822B (en) * | 2022-06-22 | 2024-04-19 | 海峡建工集团有限公司 | River course treatment system and river course transformation method thereof |
| CN116145610A (en) * | 2023-02-14 | 2023-05-23 | 中国电建集团贵阳勘测设计研究院有限公司 | Ecological dismantling and ecological restoration method for sediment accumulation reservoir |
| CN116145610B (en) * | 2023-02-14 | 2024-05-31 | 中国电建集团贵阳勘测设计研究院有限公司 | Ecological dismantling and ecological restoration method for sediment accumulation reservoir |
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