CN206070494U - A kind of cofferdam suitable for lake dredging bed mud stockyard - Google Patents

A kind of cofferdam suitable for lake dredging bed mud stockyard Download PDF

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Publication number
CN206070494U
CN206070494U CN201620937896.0U CN201620937896U CN206070494U CN 206070494 U CN206070494 U CN 206070494U CN 201620937896 U CN201620937896 U CN 201620937896U CN 206070494 U CN206070494 U CN 206070494U
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China
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tube bag
geotextile tube
cofferdam
stockyard
lake
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CN201620937896.0U
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楚维国
田鑫
刘东征
杨学师
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China Communications (Tianjin) environmental protection design and Research Institute Co., Ltd.
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CCCC Tianjin Port and Shipping Survey and Design Institute Co Ltd
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Abstract

This utility model is related to a kind of cofferdam suitable for lake dredging bed mud stockyard.This utility model belongs to Dredging Technology field.A kind of cofferdam suitable for lake dredging bed mud stockyard, is characterized in:It is formed by connecting by geotextile tube bag is filled suitable for the cofferdam in lake dredging bed mud stockyard, geotextile tube bag is that geotextile sewing is formed, geotextile tube bag inner stuffing is slush silt from the bottom of lake, water is oozed out from the establishment gap of geotextile tube bag, silt from the bottom of lake is retained consolidation and forms geotextile tube bag levee body, and geotextile tube bag bond constitutes stockyard cofferdam.This utility model adopts filling-up mechanically mode, and can be constructed with the rainy day, with gathering materials on the spot; protecting ecology; construction period is short, artificial less investment, and efficiency of construction is high; weir body good integrity; stability is high, and close structure, surface can use three-dimension vegetative net grass planting; greening can both be increased, improved environment, it is also possible to the advantages of side slope is reinforced.

Description

A kind of cofferdam suitable for lake dredging bed mud stockyard
Technical field
This utility model belongs to Dredging Technology field, more particularly to a kind of suitable for lake dredging bed mud stockyard Cofferdam.
Background technology
At present, in lake dredging engineering, polluted bed mud is dredged and handling project is the emphasis of lake treatment, it is intended to removed The pollutant such as lead of the long time sedimentation in bottom mud in lake, zinc, cadmium, phosphorus, solve the problems, such as lake endogenous pollution.In the past water conservancy, traffic, Cofferdam used in the engineerings such as municipal administration is usually the native build such as stone or concrete and forms, and needs a large amount of building materials, and construction is slow, cost It is higher, and construction usually restricted by the various natural conditions such as traffic, rainfall.Deposit in the cofferdam in existing lake dredging bed mud stockyard Consume big in building materials, it is impossible to which the rainy day constructs, it is impossible to which protecting ecology, construction period are long, artificial input is big, low construction efficiency makes A series of problems, such as high cost.
The content of the invention
This utility model provides a kind of suitable for lake dredging bed mud to solve technical problem present in known technology The cofferdam in stockyard.
The purpose of this utility model is to provide one kind with gathering materials on the spot, and protecting ecology, construction period are short, artificial to put into Few, efficiency of construction is high, weir body good integrity, and stability is high, the features such as close structure suitable for lake dredging bed mud stockyard Cofferdam.
Technological innovation of the present utility model can be removed silt from the bottom of lake and can be saved construction material in stockyard fill again.Will dredging Lake silt is fills up to the geotextile tube bag of new material, and Jing consolidates to form new stockyard cofferdam, prevents lake dredging bed mud random Outer throwing, protects water proximate environment from pollution.
This utility model is applied to the cofferdam in lake dredging bed mud stockyard and is adopted the technical scheme that:
A kind of cofferdam suitable for lake dredging bed mud stockyard, is characterized in:Suitable for enclosing for lake dredging bed mud stockyard Weir is formed by connecting by geotextile tube bag is filled, and geotextile tube bag is that geotextile sewing is formed, and geotextile tube bag inner stuffing becomes silted up for lakebed Mud, water are oozed out from the establishment gap of geotextile tube bag, and silt from the bottom of lake is retained consolidation and forms geotextile tube bag dike, geotextile tube bag Bond constitutes stockyard cofferdam.
This utility model is applied to the cofferdam in lake dredging bed mud stockyard and can also adopt the following technical scheme that:
The described cofferdam suitable for lake dredging bed mud stockyard, is characterized in:Stockyard cofferdam is folded for trapezoidal geotextile tube bag Structure is built, levels geotextile tube bag end is provided with sand pocket, and stockyard surface is covered with geotextiles inverted filter.
The described cofferdam suitable for lake dredging bed mud stockyard, is characterized in:During geotextile tube bag bond, in cofferdam straight line 2~the 3m of the lap of splice of the joint between Duan Xianglin geotextile tube bags.
The described cofferdam suitable for lake dredging bed mud stockyard, is characterized in:Tie up between the geotextile tube bag in stockyard cofferdam There is polyester rope.
The described cofferdam suitable for lake dredging bed mud stockyard, is characterized in:Geotextile tube bag blank area is sewed with to be tied up The ring set of jag, for wire rope handling colligation, the static line that can be arranged around the colligation of geotextile tube bag or with ground is connected.
The described cofferdam suitable for lake dredging bed mud stockyard, is characterized in:Geotextile tube bag basis both sides dig have for The gutter of paving anti-seepage geomembrane, is provided with the blotter on basis, and gutter is together played infiltration, had with basic blotter The effect of tissue draining, prevents a large amount of infiltration water that mud is discharged in pipe bag from washing away or soaking geotextile tube bag basis.
This utility model has the advantages and positive effects that:
Suitable for lake dredging bed mud stockyard cofferdam as a result of the brand-new technical scheme of this utility model, it is and existing Technology is compared, and this utility model has advantages below:
1st, geotextile tube sack cofferdam lake bottom sludge filled geotube, gathers materials on the spot, and protecting ecology prevents erosion, symbol Close the policy of country.
2nd, geotextile tube sack cofferdam adopts filling-up mechanically mode, and artificial less investment, construction period are short, efficiency high.
3rd, the high-performance geotextile materials lightweight used by geotextile tube bag, intensity is high, quality is good, without the need for mechanical transport, Handling, manually shoulder bag.
4th, it is connected by the way of machining sewing between every section of geotextile tube bag, usual tens meters to hundreds of meter cofferdam Overall, the whole weir body good integrity for one, stability are high, and close structure should not be by artificial destruction.
5th, geotextile tube bag uvioresistant, tension, puncture resistant ability are strong, and many decades are not bad, and in pipe, sludge consolidation will not be lost in.
6th, geotextile tube sack cofferdam can be constructed in the rainy day, and the factor such as climate does not affect.
7th, Jing after fully consolidating, three-dimension vegetative net grass planting can be used in surface to geotextile tube sack cofferdam, can both increase greening, improve Environment, it is also possible to which side slope is reinforced.
Description of the drawings
Fig. 1 applies to the cofferdam structure schematic diagram in lake dredging bed mud stockyard.
In figure, 1, geotextile tube bag, 2, filling mud, 3, geotextiles inverted filter, 4, high-strength geotextile, 5, bagged sand, 6, blow Fill out stockyard.
Specific embodiment
For the content of the invention of the present utility model, feature and effect can be further appreciated that, following examples are hereby enumerated, and is coordinated Accompanying drawing describes in detail as follows:
Refering to accompanying drawing 1.
Embodiment 1
A kind of cofferdam suitable for lake dredging bed mud stockyard, is formed by connecting by filling geotextile tube bag, and geotextile tube bag is soil The sewing of work fabric is formed, and geotextile tube bag inner stuffing is silt from the bottom of lake, and water oozed out from the establishment gap of geotextile tube bag, silt from the bottom of lake It is retained consolidation and forms geotextile tube bag dike, geotextile tube bag bond constitutes stockyard cofferdam.Stockyard cofferdam is trapezoidal geotextile tube Bag bond structure, levels geotextile tube bag end are provided with sand pocket, and stockyard surface is covered with geotextiles inverted filter.Geotextile tube bag bond When, the 2~3m of the lap of splice of the joint between the adjacent geotextile tube bag of cofferdam straightway.When stockyard cofferdam reaches absolute altitude requirement, Tied up with strong polyester rope between geotextile tube bag.Geotextile tube bag blank area is sewed with the ring set of tie, for wire rope handling colligation, can be around The colligation of geotextile tube bag or the static line arranged with ground are connected.Geotextile tube bag basis both sides are dug to be had for spreading the row of anti-seepage geomembrane Ditch, is provided with the blotter on basis, and infiltration, functional in organized water drainage are together played a part of with basic blotter in gutter, Prevent a large amount of infiltration water that mud is discharged in pipe bag from washing away or soaking geotextile tube bag basis.
The present embodiment specific implementation process:
A kind of novel cofferdam suitable for lake dredging engineering bed mud stockyard, the cofferdam by fill geotextile tube bag 1 connect and Into geotextile tube bag 1 is formed using the sewing of high intensity geotextile, will dredge silt from the bottom of lake out using the technique of slush Fill into geotextile tube bag 1, water oozes out from the establishment gap of geotextile tube bag 1 and, lakebed filling mud 2 is retained bag Dike, on the top layer of bag dike, the sand 5 that is packed in bag carries out reason slope, and layer overlay geotextiles inverted filter 3, lays in the bottom of bag dike One layer of high-strength geotextile 4, treats that 2 degree of consolidation of filling mud in bag dike reaches standard, and stockyard cofferdam is formed, you can to hydraulic reclamation Hydraulic reclamation silt from the bottom of lake in stockyard 6.
Antifouling curtain take unit module assemble method, being actually needed according to job site, increase or subtract Few unit module, and the simplicity of intermodule connected mode, then subtract job simplification so that installing to tear open, and convenient transport.
Geotextile tube bag 1 using high intensity geotextile sewing form, the material with high molecular polymer as raw material, with anti- The functions such as filter, draining, isolation, protection and waterproof, this material can either be rapidly by the water in hydraulic reclamation mud mixture from bags Ooze out in son, it is also possible to effectively retain mud composition, this mode can improve efficiency of construction, reduce the duration of a project.
The present embodiment can take the mode of artificial laying bagged sand 5, carry out reason slope to cofferdam top layer.Geotextiles inverted filter 3 can make hydraulic reclamation ooze out to come to stockyard Zhong Shui, play a part of draining;High-strength geotextile can face geotextile tube bag 1 with reducing Abrasion, prevent geotextile tube bag gall, mud flow out.
The corner treatment of geotextile tube bag 1 can be knitted according to actual landform scene cutting pipe bag seam and be formed.In cofferdam, straightway is taken Connect, the 2~3m of the lap of splice of the joint between adjacent tubes bag first charges the pipe bag for being overlapped on top, recharges the pipe bag of bottom. When absolute altitude reaches requirement, tied up with strong polyester rope.
1 blank area of geotextile tube bag sews the ring set for tie in advance, rear wire rope handling colligation, also can around the colligation of pipe bag or It is continuous with the static line on ground.The specification of rope used:PETM1000/3DSP1000/4.
Geotextile tube bag laying place need to be laid blotter and be flattened, and reduce the bottom surface discrepancy in elevation as far as possible.
Geotextile tube bag 1 must be fixed before charging, it is to avoid slides, and is carried out using lakebed filling 2 pairs of pipe bags of mud many Secondary to charge, 5~6 suboptimums charge concentration 30%~45% most preferably, and the particle diameter for charging material is more thick better.
After geotextile tube bag 1 is full of, pipe bag basis both sides are excavated for spreading the gutter of anti-seepage geomembrane, itself and basis Blotter together plays a part of infiltration, functional in organized water drainage, prevents a large amount of infiltration water that mud is discharged in pipe bag from washing away or soaking Bubble pipe bag basis.
Before mud being stored up into 6 cofferdam of geotextile tube bag hydraulic reclamation stockyard, should carry out physics to the sampling of mud 2 is filled in pipe bag Index test and consolidation test, at pipe bag hydraulic reclamation mouth, the consolidation of soil is basically completed and is defined.When silt soil natural density in pipe bag ≥11.00KN/m3When, the soil in visual pipe bag reaches consolidation and requires, can be to hydraulic reclamation dredging silt in hydraulic reclamation stockyard 6.
In terms of structure design, stability against sliding and settlement request are met, it is ensured that the cofferdam entirety under hydraulic reclamation load action Stability, while, it is considered to geotextile tube bag charges the discharge with stockyard hydraulic reclamation water body, and detection discharge water quality need to reach standard, prevent Only surrounding enviroment are polluted, environmental protection requirement is met.
The present embodiment adopts filling-up mechanically mode, and can be constructed with the rainy day, and with gathering materials on the spot, protecting ecology is constructed Short time limit, artificial less investment, efficiency of construction are high, weir body good integrity, and stability is high, close structure, and surface can be with three-dimensional vegetation Grass planting on net, can both increase greening, improve environment, it is also possible to which side slope had carried out the good effect such as reinforcing.

Claims (6)

1. a kind of cofferdam suitable for lake dredging bed mud stockyard, is characterized in that:Suitable for the cofferdam in lake dredging bed mud stockyard It is formed by connecting by filling geotextile tube bag, geotextile tube bag is that geotextile sewing is formed, and geotextile tube bag inner stuffing is silt from the bottom of lake, Water is oozed out from the establishment gap of geotextile tube bag, and silt from the bottom of lake is retained consolidation and forms geotextile tube bag dike, and geotextile tube bag is folded Build and constitute stockyard cofferdam.
2. the cofferdam suitable for lake dredging bed mud stockyard according to claim 1, is characterized in that:Stockyard cofferdam is trapezoidal Geotextile tube bag bond structure, levels geotextile tube bag end are provided with sand pocket, and stockyard surface is covered with geotextiles inverted filter.
3. the cofferdam suitable for lake dredging bed mud stockyard according to claim 1 and 2, is characterized in that:Geotextile tube bag is folded During block, the 2~3m of the lap of splice of the joint between the adjacent geotextile tube bag of cofferdam straightway.
4. the cofferdam suitable for lake dredging bed mud stockyard according to claim 1 and 2, is characterized in that:Stockyard cofferdam Polyester rope has been tied up between geotextile tube bag.
5. the cofferdam suitable for lake dredging bed mud stockyard according to claim 1 and 2, is characterized in that:Geotextile tube bag connects Head parting is formed with the ring set of tie, and for wire rope handling colligation, the static line that can be arranged around the colligation of geotextile tube bag or with ground connects Connect.
6. the cofferdam suitable for lake dredging bed mud stockyard according to claim 1 and 2, is characterized in that:Geotextile tube bag base Plinth both sides are dug to be had for spreading the gutter of anti-seepage geomembrane, is provided with the blotter on basis, the blotter on gutter and basis Together play a part of infiltration, functional in organized water drainage, prevent a large amount of infiltration water that mud is discharged in pipe bag from washing away or soaking geotextile tube Bag basis.
CN201620937896.0U 2016-08-25 2016-08-25 A kind of cofferdam suitable for lake dredging bed mud stockyard Active CN206070494U (en)

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Application Number Priority Date Filing Date Title
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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108532611A (en) * 2018-04-27 2018-09-14 中国铁道科学研究院深圳研究设计院 A kind of foundation pit supporting construction and construction method
CN108978577A (en) * 2018-07-27 2018-12-11 中交天航港湾建设工程有限公司 The construction method of irrigation canals and ditches bed mud dredging is carried out based on hydraulicking filling geotextile tube bag
CN109457687A (en) * 2018-12-17 2019-03-12 湖州职业技术学院 A kind of drainage arrangement for sludge solidification
CN111892275A (en) * 2020-07-16 2020-11-06 天津大学 Method for ecological bank protection after dehydration of eutrophic polluted bottom mud geotextile tube bags
CN111997076A (en) * 2020-08-27 2020-11-27 河北省水利科学研究院 Rapid temporary cofferdam construction method
CN112592009A (en) * 2020-11-18 2021-04-02 河海大学 Multi-layer flat tube bag rapid dehydration system and dehydration method for slurry treatment
CN113557334A (en) * 2018-09-04 2021-10-26 湖泊修复解决方案公司 Lake restoration system and method
CN114150649A (en) * 2021-12-23 2022-03-08 武汉大学 Annular cavity grid earthwork tube bag storage sludge retaining structure
CN114427230A (en) * 2021-12-23 2022-05-03 黄河水利委员会黄河水利科学研究院 Ring type cavity lattice earthwork tube bag structure
CN114482086A (en) * 2021-12-23 2022-05-13 黄河水利委员会黄河水利科学研究院 Construction method of supporting and retaining structure for storing sludge

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108532611A (en) * 2018-04-27 2018-09-14 中国铁道科学研究院深圳研究设计院 A kind of foundation pit supporting construction and construction method
CN108978577A (en) * 2018-07-27 2018-12-11 中交天航港湾建设工程有限公司 The construction method of irrigation canals and ditches bed mud dredging is carried out based on hydraulicking filling geotextile tube bag
CN113557334A (en) * 2018-09-04 2021-10-26 湖泊修复解决方案公司 Lake restoration system and method
CN109457687A (en) * 2018-12-17 2019-03-12 湖州职业技术学院 A kind of drainage arrangement for sludge solidification
CN111892275A (en) * 2020-07-16 2020-11-06 天津大学 Method for ecological bank protection after dehydration of eutrophic polluted bottom mud geotextile tube bags
CN111997076A (en) * 2020-08-27 2020-11-27 河北省水利科学研究院 Rapid temporary cofferdam construction method
CN112592009A (en) * 2020-11-18 2021-04-02 河海大学 Multi-layer flat tube bag rapid dehydration system and dehydration method for slurry treatment
CN112592009B (en) * 2020-11-18 2022-04-08 河海大学 Multi-layer flat tube bag rapid dehydration system and dehydration method for slurry treatment
CN114150649A (en) * 2021-12-23 2022-03-08 武汉大学 Annular cavity grid earthwork tube bag storage sludge retaining structure
CN114427230A (en) * 2021-12-23 2022-05-03 黄河水利委员会黄河水利科学研究院 Ring type cavity lattice earthwork tube bag structure
CN114482086A (en) * 2021-12-23 2022-05-13 黄河水利委员会黄河水利科学研究院 Construction method of supporting and retaining structure for storing sludge

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Address after: 300461 Tianjin Binhai New Area Tianjin Port Free Trade Zone Yuejin Road shipping service center 9 building.

Patentee after: China Communications (Tianjin) environmental protection design and Research Institute Co., Ltd.

Address before: 300461 Tianjin Binhai New Area Tianjin Port Free Trade Zone Yuejin Road shipping service center 9 building.

Patentee before: Tianjin Pore Avigation Survey and Design Research Co., Ltd. of China Communications Construction Co.

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