CN109736268A - A kind of underwater throwing method of dredged mud using pouch control pollution - Google Patents
A kind of underwater throwing method of dredged mud using pouch control pollution Download PDFInfo
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- CN109736268A CN109736268A CN201811597437.2A CN201811597437A CN109736268A CN 109736268 A CN109736268 A CN 109736268A CN 201811597437 A CN201811597437 A CN 201811597437A CN 109736268 A CN109736268 A CN 109736268A
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- pouch
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- dredged mud
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Abstract
The invention discloses a kind of underwater throwing methods of dredged mud using pouch control pollution, first enter dredging silt or the solidification dredging pump mixed in geotechnological pouch including (1), and manually or mechanical mode seals geotechnological pouch；(2) casting area is transported to equipped with the geotechnological pouch of mud or curing sludge using opening barge or Other Engineering equipment；(3) throwing geotechnique pouch, which enters in water, fills.This method compares existing underwater casting method, and operation is simple, reduces manpower and material resources, and geotechnological pouch also prevents the isolation erosion of mud or curing sludge, controls the secondary pollutions such as dissolution, diffusion, the migration that may occur when mud passes through water body.
Description
Technical field
The present invention relates to underwater placement method, in particular to a kind of method for carrying out underwater placement using waste silt.
Background technique
Pay attention to as China increases water environment treatment, the river and lake sea engineering scale of construction of desilting and dredging increasingly increases.In it is estimated that
For the extra large year dredged mud amount of state's river and lake in 2017 up to 60 billion cubic meters, the dredged mud of the so big scale of construction seeks the approach disposed or utilized
It is a problem to be solved.On the other hand, engineering and seabed sand pit reparation stemming operation are poured in the water such as island in lake, marine make
It carries out like a raging fire, but exists to lack again when filling and pour material or a series of problems, such as welding of cutting into a mountain for quarrying.
It is difficult in conjunction with dredged mud, difficult to utilize and lack the problem for pouring material source in water, it is used as after dredged mud is handled
Construction material pours under water can very effectively solve both of these problems.
Conventional mud casting method is rolled into a ball generally by extensive ship to be cooperated, including air pump ship, curing materials storeship,
The collaborations such as solidification mixing ship pour sludge material to the bottom by the long pipeline pumping that pours.In this series of process
Needed for equipment technique it is all troublesome, and cost is very high, and the requirement to operator is also very high；In addition, directly pouring to water
Under solidification dredged mud secondary pollution problem caused by surrounding water it is also very important.It becomes silted up according to easy directly throwing
Mud, during silt settling, by the erosion of water body, mechanical property is deteriorated, and will cause serious secondary pollution.Therefore, it needs
A kind of new mud or curing sludge underwater casting method are invented, this neoteric casting method is needed with secondary pollution
Feature low, construction technology is simple, project cost is low.
Summary of the invention
Goal of the invention: existing underwater casting method there are aiming at the problem that, the present invention provides it is a kind of using pouch control
The underwater throwing method of the dredged mud of pollution.
Technical solution: the dredged mud underwater throwing method of the present invention using pouch control pollution, including following step
It is rapid: (1) that on construction barge, mud or the solidification dredging pump mixed being entered into geotechnological pouch, pumped geotechnological capsule after filling out
Bag sealing；(2) the geotechnological pouch filled in step (1) is transported to using barge to fill region and (3) are accurately positioned and is opened
Barge opening, by the geotechnological pouch natural subsidence for the dredging silt for being filled with mud or mixing to underwater placement region.
Preferably, in step (1), the solidification dredged mud is mixed by mud and curing agent.
Preferably, the curing agent is one or more of cement, gypsum, lime, flyash and polymeric consolidator.
Visually practical reclamation work requires to determine the specific type of curing agent.
Above-mentioned polymeric consolidator type can be vinyl monomer through polymeric consolidator made of high molecular polymerization.
Preferably, the doping of the curing agent is 60-90kg/m3。
Preferably, in step (1), geotechnique's bladder material is geotechnological woven fabric, selected from spinning geotextiles or non-woven geotextile.
The geotechnological pouch that the present invention uses, can obtain in the market, and the prior art is that geotechnological pouch is used as sludge dewatering
Filter medium, in the present invention as mud or the inclusion enclave of curing sludge, for preventing casting process mud or solid
Change erosion of the mud in water flow.Mud or curing sludge are wrapped up using geotechnological pouch, solves following problems:
(1) prior art utilizes the direct throwing of solidified earth, and the solidified earth of throwing has large effect to surrounding water,
Such as the diffusion of heavy metal, fine particle, and the pollution to water body then can be largely reduced with geotechnological pouch.
(2) common geotechnical fabric bag is utilized in the prior art, and cement mortar or concrete are clipped in upper layer and lower layer geotextile
Between, the cementation for only relying on solidified earth becomes an entirety, and leakproofness is relatively poor, and geotechnological pouch is then complete
In solidified earth is wrapped in, good airproof performance, solidified earth discrete will not go out, and decrease the influence to surrounding water.Preferably,
In step (1), the moisture content of the mud is 70%-75%.
The utility model has the advantages that (1) required mechanical equipment of the invention is less, operation is simple, can reduce manpower and material resources well
Cost；(2) solidification dredged mud is wrapped in geotechnological pouch by the present invention, does not have discrete risk in casting process,
Additionally, due to the barrier of geotechnological pouch, solidifying dredged mud is more difficult to form secondary pollution after the completion of pouring；(3) it is of the invention faster
Effective, the great economy of speed, and avoid secondary pollution of water.
Specific embodiment
Combined with specific embodiments below, the present invention is furture elucidated, it should be understood that these embodiments are merely to illustrate the present invention
Rather than limit the scope of the invention, after the present invention has been read, those skilled in the art are to various equivalences of the invention
The modification of form falls within the application range as defined in the appended claims.
Embodiment 1: carrying out small-scale experiment indoors, and dredged mud used is Dalian Bay bed mud, average moisture content 71%, Gu
Agent uses ordinary portland cement, marked as 42.5#, volume 80kg/m3。
Firstly, dredged mud, portland cement are stirred evenly with blender, then being inserted volume is about 0.2 cube
It in the geotechnological pouch of rice, and is tightened with the rope made of hemp, fills up 15 geotechnological pouches altogether.
Then the suspended solid (suspended solid, SS) of tank water and the content of heavy metal before test is thrown into will
These geotechnological pouches, which are thrown into, is about 4 meters, in about 3 meters wide, deep about 1.5 meters of pond, and water sampling measurement immediately is outstanding during throwing
Floating solid is the secondary pollution situation simulated during pouch underwater casting.Throwing complete 7 days after take around water sample survey its SS with
And the content of Zn, Ni, Cr, Cu, that is, simulate the secondary pollution situation after the completion of pouch underwater casting.
Experimental result: SS value is 25mg/L in former pond, and the content of beary metal such as Zn, Cu, Ni and Cr are substantially zeroed.It poured
Water sample SS increment is 12mg/L in journey；7 days water sample SS increments are 2mg/L after the completion of pouring, and pH increment is 1.3, and Zn, Cu content do not have
There is growth, the increment of Ni is 0.008mg/L, and the increment of Cr is 0.003mg/L.One bag of mud is taken to survey it without lateral confinement with Type portable penetration meter
Compression strength is 180kPa.
Comparative example 1: compare with embodiment 1, various types of materials used, proportion, experimental condition are same as Example 1, uniquely
It is not both that curing sludge is not mounted in geotechnological pouch, directly progress underwater casting test.Likewise, measuring the water sample before throwing
Index, water sampling measures SS, i.e. secondary pollution situation during simulation pouch underwater casting to throwing immediately in the process；Throwing is complete
At the content for taking around water sample to survey its SS, pH and Zn, Ni, Cr, Cu after 7 days, i.e. two after the completion of simulation pouch underwater casting
Secondary pollution condition.
Experimental result: SS value is 25mg/L in former pond, and the content of beary metal such as Zn, Cu, Ni and Cr are substantially zeroed.That surveys pours
Water sample SS increment is 152mg/L during building, and takes around water sample to survey the content of its SS and Zn, Ni, Cr, Cu after 7 days, finally surveys
Obtaining water sample SS increment is 8mg/L, and pH increment is 1.5, and Zn, Cu content do not increase, and the increment of Ni is 0.016mg/L, the increasing of Cr
Amount is 0.007mg/L.It takes partially cured mud to survey its unconfined compressive strength with Type portable penetration meter, is 92kPa.
As can be seen from the above results, the present invention reduces two using geotechnological pouch, solidification dredged mud after the completion of pouring
Secondary pollution, secondly, not having discrete risk after pouring.
Claims (6)
1. a kind of underwater throwing method of dredged mud using pouch control pollution, which comprises the following steps:
(1) on construction barge, mud or the solidification dredging pump mixed are entered into geotechnological pouch, pumped geotechnological capsule after filling out
Bag sealing；
(2) the geotechnological pouch filled in step (1) is transported to using barge and fills region and is accurately positioned；
(3) barge opening is opened, by the geotechnological pouch natural subsidence for the dredging silt for being filled with mud or mixing to filling out under water
Build region.
2. the dredged mud underwater throwing method according to claim 1 using pouch control pollution, it is characterised in that step
(1) in, the solidification dredged mud is mixed by mud and curing agent.
3. the dredged mud underwater throwing method according to claim 2 using pouch control pollution, which is characterized in that described
Curing agent is one or more of cement, gypsum, lime, flyash and polymeric consolidator.
4. the dredged mud underwater throwing method according to claim 3 using pouch control pollution, which is characterized in that described
The doping of curing agent is 60-90kg/m3。
5. the dredged mud underwater throwing method according to claim 1 using pouch control pollution, it is characterised in that step
(1) in, geotechnique's bladder material is geotechnological woven fabric, selected from spinning geotextiles or non-woven geotextile.
6. the dredged mud underwater throwing method according to claim 1 using pouch control pollution, it is characterised in that step
(1) in, the moisture content of the mud is 70%-75%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811597437.2A CN109736268A (en) | 2018-12-26 | 2018-12-26 | A kind of underwater throwing method of dredged mud using pouch control pollution |
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| CN201811597437.2A CN109736268A (en) | 2018-12-26 | 2018-12-26 | A kind of underwater throwing method of dredged mud using pouch control pollution |
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| CN109736268A true CN109736268A (en) | 2019-05-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112456743A (en) * | 2020-12-08 | 2021-03-09 | 中交天津港湾工程研究院有限公司 | Method for industrially producing bagged solidified soil by using dredged sludge |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02161016A (en) * | 1988-12-13 | 1990-06-20 | Kumagai Gumi Co Ltd | Underwater placement method of filling material and water-soluble substance used for the method |
| CN1673165A (en) * | 2005-03-24 | 2005-09-28 | 湘潭大学 | Bagged cement soil and its engineering application |
| CN102617078A (en) * | 2012-03-30 | 2012-08-01 | 连云港港口工程设计研究院有限公司 | Harbor construction sea reclaimed material utilizing silt and preparation method thereof |
| CN202466513U (en) * | 2011-12-27 | 2012-10-03 | 天津市海岸带工程有限公司 | Isolation structure mainly made of soft clay and capable of solidifying rapidly |
| CN206624331U (en) * | 2017-02-21 | 2017-11-10 | 中交疏浚技术装备国家工程研究中心有限公司 | A kind of dividing plate conveyer dress throws bagging apparatus |
-
2018
- 2018-12-26 CN CN201811597437.2A patent/CN109736268A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02161016A (en) * | 1988-12-13 | 1990-06-20 | Kumagai Gumi Co Ltd | Underwater placement method of filling material and water-soluble substance used for the method |
| CN1673165A (en) * | 2005-03-24 | 2005-09-28 | 湘潭大学 | Bagged cement soil and its engineering application |
| CN202466513U (en) * | 2011-12-27 | 2012-10-03 | 天津市海岸带工程有限公司 | Isolation structure mainly made of soft clay and capable of solidifying rapidly |
| CN102617078A (en) * | 2012-03-30 | 2012-08-01 | 连云港港口工程设计研究院有限公司 | Harbor construction sea reclaimed material utilizing silt and preparation method thereof |
| CN206624331U (en) * | 2017-02-21 | 2017-11-10 | 中交疏浚技术装备国家工程研究中心有限公司 | A kind of dividing plate conveyer dress throws bagging apparatus |
Non-Patent Citations (1)
| Title |
|---|
| 谢荣星等: "土工织物充填泥袋筑堤现场试验研究", 《工程勘察》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112456743A (en) * | 2020-12-08 | 2021-03-09 | 中交天津港湾工程研究院有限公司 | Method for industrially producing bagged solidified soil by using dredged sludge |
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