CN109518744A - A kind of construction method of cutter suction dredger dredging - Google Patents
A kind of construction method of cutter suction dredger dredging Download PDFInfo
- Publication number
- CN109518744A CN109518744A CN201811349322.1A CN201811349322A CN109518744A CN 109518744 A CN109518744 A CN 109518744A CN 201811349322 A CN201811349322 A CN 201811349322A CN 109518744 A CN109518744 A CN 109518744A
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- China
- Prior art keywords
- mud
- suction dredger
- pipe
- cutter suction
- laying
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/122—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using filter presses
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
- E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/28—Dredgers or soil-shifting machines for special purposes for cleaning watercourses or other ways
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a kind of construction methods of cutter suction dredger dredging, are related to channel cleanout field, solve the problems, such as that the mud cleared out of in existing dredging technique is dried period length, its key points of the technical solution are that the following steps are included: (one) construction survey；(2) pipe net arrangement: a. pipeline designs；B. float tube is laid；C. drowning pipe is laid；D. bank pipe is laid；E. cutter suction dredger positions；(3) channel cleanout；(4) mud cleans；(5) stirring sedimentation；(6) pressure-filteration drying is quickly dried mud in such a way that filters pressing and dryness in the sun combine, and arid cycle is short.
Description
Technical field
The present invention relates to channel cleanout fields, more specifically, it is related to a kind of construction party of cutter suction dredger dredging
Method.
Background technique
The discharge of present people's sanitary sewage increases significantly, wherein a large amount of sewage has directly been discharged into river and lake
In pool, along with Surface Runoff, production sand after rainfall and producing dirt causes the environment in many river and lake to cause to understand
Deterioration certainly, the siltation area in many river and lake start constantly to be elevated, deposit in river and lake
Mud will cause a series of environment hidden danger.
In order to carry out dredging to river and lake, cutter suction dredger is generallyd use to carry out clearly river and lake
It becomes silted up, the mud of removing is carried out dehydrating using natural seasoning, that is, the silt that will be cleared out of in river and lake
Mud is passed into mud-dumping yard, and mud is dried under field conditions (factors) in mud-dumping yard, is wanted until the aridity of sludge reaches
It asks.But it is this when clearing up mud, the thickness for being stacked into the mud in blowdown field is very thick, and the mud in stratum exists
Dry speed is very slow under natural conditions, generally requires that mud is dried by the very long period, needs one kind now
The method of mud arid cycle can be shortened.
Summary of the invention
In view of the deficiencies of the prior art, the present invention intends to provide a kind of construction of cutter suction dredger dredging
Method is quickly dried mud in such a way that filters pressing and dryness in the sun combine, and arid cycle is short.
To achieve the above object, the present invention provides the following technical scheme that a kind of construction party of cutter suction dredger dredging
Method, comprising the following steps:
(1) construction survey:
When carrying out construction survey, owner and management is needed to measure the review and setting work at control point together, for
Operating provision in measurement process carries out stringent control；Measurement is indicated generic reference numeral before measuring by survey crew, and
And on mark to overall construction site plan, and mutual distance, the elevation angle etc. between related mark are indicated；To guarantee
Measurement accuracy, before construction, according to control point survey setting-out, and the repetition measurement for needing to carry out again is checked, to guarantee work
The precision of journey；
(2) pipe net arrangement:
A. pipeline designs: when carrying out sludge discharge pipeline design, it should be designed using shortening construction array pitch as far as possible as principle；
B. float tube is laid: being carried out float tube laying according to the practical practical position of cutter suction dredger, is worn using the steel pipe of long 6m
Floating drum is to form float tube；Clip between each pipeline section must be solid and reliable；
C. drowning pipe is laid: needing to be selected in more spacious river bank before construction to carry out the connection of dredging tube line, and by pipeline
One end blocked using steel plate and rubber washer, then the dredging tube line to link together is dragged in water simultaneously with workboat
And carry out traction and move ahead, until drowning pipe is sunk to water by way of filling the water exhaust in drowning pipe after pipeline intended orientation
In；
D. bank pipe is laid: bank pipe is formed by connecting when laying using steel pipe, the elbow of different angle and rubber tube, and junction uses
Flange adds the mode of rubber washer to be attached, and the flat straight laying of progress when laying as far as possible is avoided in laying
Occurs dog leg in process；
E. cutter suction dredger positions: determining the sequence cast anchor according to water flow and wind direction first, generally first throws wind, upstream
Reamer is first transferred to when being cast anchor and dredges on sideline by anchor, then transfers to reamer in mud, and hull is withstood, when casting anchor
The position cast anchor is controlled, the position of side anchor cable with 45 ° of the leading angle of hull at that time is at；It is tightened after casting anchor traversing
Reamer is proposed mud face after anchor is caught by cable；
(3) channel cleanout:
When cutter suction dredger carries out dredging operation in vertically hung scroll of constructing, excavate according to excavation 50~80cm of thickness layering and dredge
It dredges, the total thickness excavated as required carries out stage excavation；
(4) mud cleans:
Mud is discharged in blowdown field in mud conveying pipeline, mud is worked as by multistage grid in blowdown field
In the nondegradable rubbish such as polybag be filtered, be hooked into it on grid；
(5) stirring sedimentation:
By filtering terminate mud from extracted out in blowdown field, be then passed into agitator tank, water added to be stirred,
The mud that stirring terminates is passed into settling tank and is settled；
(6) pressure-filteration drying:
The mud that sedimentation obtains is uniformly mixed, curing agent is added thereto and carries out；Curing agent is added in mud, and will
Mud is uniformly mixed with curing agent, and uniformly mixed mud is transported in filter press and carries out filter-press dehydration processing, then again
It will be placed into natural environment and dry by the obtained mud of filters pressing processing, the control of sunning time is complete at 4~5 days
The processing of pairs of mud.
By using above-mentioned technical proposal, mud is sucked out by cutter suction dredger first, is then discharged into mud
Mud is filtered in blowdown field, the rubbish that the refuse bag etc. in mud can not degrade is filtered out in mud,
Then once into cross sedimentation, the drying of mud is realized in filters pressing and sunning, the dry period compare with it is straight in blowdown field
It taps into row and has been dried to obtain very big reduction.
The present invention is further arranged to: in the step (2), when carrying out pipeline designs, it should reduce as far as possible to week
The influence in collarette border, mostly uses drowning pipe as far as possible, and a small amount of float tube and bank pipe is cooperated to be designed.
By using above-mentioned technical proposal, blowoff line can be reduced for ship normal/cruise on river using float tube less
Caused influence can reduce the destruction to bank vegetation using bank pipe less.
The present invention is further arranged to: in the step (2), when carrying out float tube laying, being used between two adjacent steel pipes
Rubber tube is flexibly connected.
By using above-mentioned technical proposal, it is flexibly connected between the steel pipe of two adjacent float tubes using rubber tube, energy
Enough meeting dredger mud pump housing delivery pipe and drowning pipe has good move place.
The present invention is further arranged to: in the step (2), when carrying out float tube laying, being kedged every two-way on 100m
It is positioned.
By using above-mentioned technical proposal, two-way kedge can control the amplitude of oscillation of float tube, prevent water flow and wind
Speed causes the significantly swing of float tube.
The present invention is further arranged to: in the step (2), when carrying out drowning pipe laying, matching one every three defeated mud steel pipes
Section rubber tube is flexibly connected.
By using above-mentioned technical proposal, match a section rubber tube every three defeated mud steel pipes, drowning pipe swing can either be met
Demand, and will not influence drowning pipe integrated connection stability.
The present invention is further arranged to: in the step (2), carry out bank pipe laying when, mud conveying pipeline pass through road or
When person is dyke facility, passed through as far as possible using culvert, it is necessary to when being passed through, take ramp to set up under either broken road and bury
Mode be laid with, and repaired after completion.
By using above-mentioned technical proposal, by ramp set up and broken road under bury, can reduce as far as possible to friendship
Logical influence.
The present invention is further arranged to: in the step (5), when carrying out silt settling, being obtained after settling for the first time
Top layer liquid continue to be passed into and settled again in next settling tank, carry out five sedimentations altogether.
By using above-mentioned technical proposal, by repeatedly settling, preferably the silt settling in water can be gone out, reduce water
Pollution on the environment after discharge.
The present invention is further arranged to: in the step (6), curing agent includes following component according to parts by weight: raw stone
Grey 20 parts, 15 parts of flyash, 8 parts of polymeric aluminium ferrum silicate, 20 parts of zeolite powder, 5 parts of desulfurized gypsum, 6 parts of lignin calcium sulfate.
By using above-mentioned technical proposal, curing agent can either improve the solidification effect to mud, additionally it is possible to work as with mud
In harmful substance reflected, reduce mud in harmful substance content.
In conclusion the present invention has the advantages that compared with the prior art
1, the present invention is quickly dried mud by using the mode that filters pressing and dryness in the sun combine, so that arid cycle is big
It is big lower than the arid cycle directly dried in blowdown field；
2, the present invention by using curing agent, the solidification effect of mud can either be improved, additionally it is possible to by with having in mud
Evil substance is reacted, and the content of harmful substance in mud is reduced.
Specific embodiment
A kind of embodiment: construction method of cutter suction dredger dredging, comprising the following steps:
(1) construction survey:
When carrying out construction survey, owner and management is needed to measure the review and setting work at control point together, for
Operating provision in measurement process carries out stringent control；Measurement is indicated generic reference numeral before measuring by survey crew, and
And on mark to overall construction site plan, and mutual distance, the elevation angle etc. between related mark are indicated；To guarantee
Measurement accuracy, before construction, according to control point survey setting-out, and the repetition measurement for needing to carry out again is checked, to guarantee work
The precision of journey；
(2) pipe net arrangement:
A. pipeline designs: when carrying out sludge discharge pipeline design, it should it is designed using shortening construction array pitch as far as possible as principle, and
The influence to ambient enviroment is reduced as far as possible, mostly uses drowning pipe as far as possible, a small amount of float tube and bank pipe is cooperated to be designed；
B. float tube is laid: being carried out float tube laying according to the practical practical position of cutter suction dredger, is worn using the steel pipe of long 6m
Floating drum is flexibly connected between two adjacent steel pipes using rubber tube to form float tube, meets dredger mud with this
Pump housing delivery pipe and drowning pipe have good move place；Because what is generated when float tube to bear water flow, stormy waves and dredge fill rushes
The influence of power is hit, so the clip between each pipeline section must be solid and reliable, while in order to control the amplitude of oscillation of float tube, every 100m
Upper two-way kedge is positioned, to prevent water flow and wind speed from causing the significantly swing of float tube；
C. drowning pipe is laid: need to be selected in more spacious river bank before construction to carry out the connection of dredging tube line, it is defeated every three
Mud steel pipe is flexibly connected with a section rubber tube, and one end of pipeline is blocked using steel plate and rubber washer, so
The dredging tube line to link together is dragged in water with workboat afterwards and carry out traction move ahead, until pipeline intended orientation it
Afterwards, by drowning pipe submerged by way of filling the water exhaust in drowning pipe；
D. bank pipe is laid: bank pipe is formed by connecting when laying using steel pipe, the elbow of different angle and rubber tube, and junction uses
Flange adds the mode of rubber washer to be attached, and the flat straight laying of progress when laying as far as possible is avoided in laying
Occurs dog leg in process；Mud conveying pipeline is passed through using culvert as far as possible when passing through road either dyke facility, it is necessary to
When being passed through, takes ramp to set up the mode buried under either broken road and be laid with, reduce the influence to traffic and complete
It is repaired after work；
E. cutter suction dredger positions: determining the sequence cast anchor according to water flow and wind direction first, generally first throws wind, upstream
Reamer is first transferred to when being cast anchor and dredges on sideline by anchor, then transfers to reamer in mud, and hull is withstood, when casting anchor
The position cast anchor is controlled, the position of side anchor cable with 45 ° of the leading angle of hull at that time is at；It is tightened after casting anchor traversing
Reamer is proposed mud face after anchor is caught by cable；
(3) channel cleanout:
When cutter suction dredger carries out dredging operation in vertically hung scroll of constructing, excavate according to excavation 50~80cm of thickness layering and dredge
It dredges, the total thickness excavated as required carries out stage excavation, so as to effectively reduce silt amount, improves and excavates essence
Degree, what the region that reduction has already passed through dredging occurred when dredging other regions falls silt again；
(4) mud cleans:
Mud is discharged in blowdown field in mud conveying pipeline, mud is worked as by multistage grid in blowdown field
In the nondegradable rubbish such as polybag be filtered, be hooked into it on grid；
(5) stirring sedimentation:
By filtering terminate mud from extracted out in blowdown field, be then passed into agitator tank, water added to be stirred,
The mud that stirring terminates is passed into settling tank and is settled, the top layer liquid obtained after sedimentation continues to be passed into down
It is settled again in one settling tank, carries out five sedimentations altogether；
(6) pressure-filteration drying:
Obtained mud is settled by five times to be uniformly mixed, and curing agent is added thereto and carries out, curing agent includes according to parts by weight
Following component: 20 parts of quick lime, 15 parts of flyash, 8 parts of polymeric aluminium ferrum silicate, 20 parts of zeolite powder, 5 parts of desulfurized gypsum, lignin
6 parts of calcium sulfate；Curing agent is added in mud, and mud is uniformly mixed with curing agent, uniformly mixed mud is defeated
It is sent in filter press and carries out filter-press dehydration processing, then will handle obtained mud by filters pressing again and be placed into natural environment
It is dried in the middle, the control of sunning time completed the processing to mud at 4~5 days.
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
Those of ordinary skill for, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (8)
1. a kind of construction method of cutter suction dredger dredging, it is characterised in that: the following steps are included:
(1) construction survey:
When carrying out construction survey, owner and management is needed to measure the review and setting work at control point together, for
Operating provision in measurement process carries out stringent control；Measurement is indicated generic reference numeral before measuring by survey crew, and
And on mark to overall construction site plan, and mutual distance, the elevation angle etc. between related mark are indicated；To guarantee
Measurement accuracy, before construction, according to control point survey setting-out, and the repetition measurement for needing to carry out again is checked, to guarantee work
The precision of journey；
(2) pipe net arrangement:
A. pipeline designs: when carrying out sludge discharge pipeline design, it should be designed using shortening construction array pitch as far as possible as principle；
B. float tube is laid: being carried out float tube laying according to the practical practical position of cutter suction dredger, is worn using the steel pipe of long 6m
Floating drum is to form float tube；Clip between each pipeline section must be solid and reliable；
C. drowning pipe is laid: needing to be selected in more spacious river bank before construction to carry out the connection of dredging tube line, and by pipeline
One end blocked using steel plate and rubber washer, then the dredging tube line to link together is dragged in water simultaneously with workboat
And carry out traction and move ahead, until drowning pipe is sunk to water by way of filling the water exhaust in drowning pipe after pipeline intended orientation
In；
D. bank pipe is laid: bank pipe is formed by connecting when laying using steel pipe, the elbow of different angle and rubber tube, and junction uses
Flange adds the mode of rubber washer to be attached, and the flat straight laying of progress when laying as far as possible is avoided in laying
Occurs dog leg in process；
E. cutter suction dredger positions: determining the sequence cast anchor according to water flow and wind direction first, generally first throws wind, upstream
Reamer is first transferred to when being cast anchor and dredges on sideline by anchor, then transfers to reamer in mud, and hull is withstood, when casting anchor
The position cast anchor is controlled, the position of side anchor cable with 45 ° of the leading angle of hull at that time is at；It is tightened after casting anchor traversing
Reamer is proposed mud face after anchor is caught by cable；
(3) channel cleanout:
When cutter suction dredger carries out dredging operation in vertically hung scroll of constructing, excavate according to excavation 50~80cm of thickness layering and dredge
It dredges, the total thickness excavated as required carries out stage excavation；
(4) mud cleans:
Mud is discharged in blowdown field in mud conveying pipeline, mud is worked as by multistage grid in blowdown field
In the nondegradable rubbish such as polybag be filtered, be hooked into it on grid；
(5) stirring sedimentation:
By filtering terminate mud from extracted out in blowdown field, be then passed into agitator tank, water added to be stirred,
The mud that stirring terminates is passed into settling tank and is settled；
(6) pressure-filteration drying:
The mud that sedimentation obtains is uniformly mixed, curing agent is added thereto and carries out；Curing agent is added in mud, and will
Mud is uniformly mixed with curing agent, and uniformly mixed mud is transported in filter press and carries out filter-press dehydration processing, then again
It will be placed into natural environment and dry by the obtained mud of filters pressing processing, the control of sunning time is complete at 4~5 days
The processing of pairs of mud.
2. a kind of construction method of cutter suction dredger dredging according to claim 1, it is characterised in that: the step
(2) in, when carrying out pipeline designs, it should reduce the influence to ambient enviroment as far as possible, mostly use drowning pipe as far as possible, cooperation is few
Amount float tube and bank pipe are designed.
3. a kind of construction method of cutter suction dredger dredging according to claim 1, it is characterised in that: the step
(2) it in, when carrying out float tube laying, is flexibly connected between two adjacent steel pipes using rubber tube.
4. a kind of construction method of cutter suction dredger dredging according to claim 1, it is characterised in that: the step
(2) it in, when carrying out float tube laying, is positioned every two-way kedge on 100m.
5. a kind of construction method of cutter suction dredger dredging according to claim 1, it is characterised in that: the step
(2) it in, when carrying out drowning pipe laying, is flexibly connected every three defeated mud steel pipes with a section rubber tube.
6. a kind of construction method of cutter suction dredger dredging according to claim 1, it is characterised in that: the step
(2) in, when carrying out the laying of bank pipe, mud conveying pipeline is logical using culvert as far as possible when passing through road either dyke facility
It crosses, it is necessary to when being passed through, take ramp to set up the mode buried under either broken road and be laid with, and be carried out after completion
It repairs.
7. a kind of construction method of cutter suction dredger dredging according to claim 1, it is characterised in that: the step
(5) in, obtained top layer liquid, which continues to be passed into next settling tank, when carrying out silt settling, after settling for the first time works as
In settled again, altogether carry out five times sedimentation.
8. a kind of construction method of cutter suction dredger dredging according to claim 1, it is characterised in that: the step
(6) in, curing agent includes following component according to parts by weight: 20 parts of quick lime, 15 parts of flyash, 8 parts of polymeric aluminium ferrum silicate,
20 parts of zeolite powder, 5 parts of desulfurized gypsum, 6 parts of lignin calcium sulfate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811349322.1A CN109518744A (en) | 2018-11-14 | 2018-11-14 | A kind of construction method of cutter suction dredger dredging |
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| CN201811349322.1A CN109518744A (en) | 2018-11-14 | 2018-11-14 | A kind of construction method of cutter suction dredger dredging |
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| CN109518744A true CN109518744A (en) | 2019-03-26 |
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| CN201811349322.1A Pending CN109518744A (en) | 2018-11-14 | 2018-11-14 | A kind of construction method of cutter suction dredger dredging |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110255857A (en) * | 2019-05-28 | 2019-09-20 | 路德环境科技股份有限公司 | Low alkali conditioner and dewatering for construction slurry deep dehydration |
| CN111894069A (en) * | 2020-07-03 | 2020-11-06 | 中建新疆建工集团第五建筑工程有限公司 | Underwater environment-friendly cutter suction type dredging device for urban ecological river and construction method thereof |
| CN115748871A (en) * | 2022-10-26 | 2023-03-07 | 广东佛水建设有限公司 | Construction method for river dredging engineering |
| CN117645455A (en) * | 2024-01-30 | 2024-03-05 | 天津中岩大地材料科技有限公司 | Dredged silt curing material and pipeline curing hydraulic filling method |
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| CN108218317A (en) * | 2018-01-19 | 2018-06-29 | 湖北工业大学 | A kind of high-moisture percentage sullage solidifying method |
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| CN201258503Y (en) * | 2008-07-21 | 2009-06-17 | 谭胜伟 | Environment protection dredging boat for river |
| CN105672195A (en) * | 2016-01-20 | 2016-06-15 | 浙江水利水电学院 | Underwater cutter-suction type dredging construction method for urban ecological river |
| CN105859068A (en) * | 2016-06-20 | 2016-08-17 | 广州市水电建设工程有限公司 | Sludge treatment process |
| CN107386195A (en) * | 2017-09-13 | 2017-11-24 | 中交第三航务工程局有限公司 | A kind of Dredging Construction method for the canal that drains off floodwaters |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110255857A (en) * | 2019-05-28 | 2019-09-20 | 路德环境科技股份有限公司 | Low alkali conditioner and dewatering for construction slurry deep dehydration |
| CN110255857B (en) * | 2019-05-28 | 2021-12-14 | 路德环境科技股份有限公司 | Low-alkali conditioner for deep dehydration of building slurry and dehydration method |
| CN111894069A (en) * | 2020-07-03 | 2020-11-06 | 中建新疆建工集团第五建筑工程有限公司 | Underwater environment-friendly cutter suction type dredging device for urban ecological river and construction method thereof |
| CN115748871A (en) * | 2022-10-26 | 2023-03-07 | 广东佛水建设有限公司 | Construction method for river dredging engineering |
| CN117645455A (en) * | 2024-01-30 | 2024-03-05 | 天津中岩大地材料科技有限公司 | Dredged silt curing material and pipeline curing hydraulic filling method |
| CN117645455B (en) * | 2024-01-30 | 2024-03-26 | 天津中岩大地材料科技有限公司 | Dredged silt curing material and pipeline curing hydraulic filling method |
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