CN105951909B - Desilting utensil and its construction method below a kind of harbour - Google Patents
Desilting utensil and its construction method below a kind of harbour Download PDFInfo
- Publication number
- CN105951909B CN105951909B CN201610465528.5A CN201610465528A CN105951909B CN 105951909 B CN105951909 B CN 105951909B CN 201610465528 A CN201610465528 A CN 201610465528A CN 105951909 B CN105951909 B CN 105951909B
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- China
- Prior art keywords
- desilting
- drag head
- utensil
- head component
- conveying mechanism
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Classifications
-
- 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
-
- 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
- E02F3/8808—Stationary installations, e.g. installations using spuds or other stationary supports
-
- 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
- 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
- E02F3/907—Measuring or control devices, e.g. control units, detection means or sensors
-
- 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
- E02F3/92—Digging elements, e.g. suction heads
- E02F3/9256—Active suction heads; Suction heads with cutting elements, i.e. the cutting elements are mounted within the housing of the suction head
- E02F3/9268—Active suction heads; Suction heads with cutting elements, i.e. the cutting elements are mounted within the housing of the suction head with rotating cutting elements
- E02F3/9281—Active suction heads; Suction heads with cutting elements, i.e. the cutting elements are mounted within the housing of the suction head with rotating cutting elements with axis of rotation in horizontal and transverse direction of the suction pipe
-
- 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
- E02F5/282—Dredgers or soil-shifting machines for special purposes for cleaning watercourses or other ways with rotating cutting or digging tools
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Underground Or Underwater Handling Of Building Materials (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
The present invention relates to desilting utensil below a kind of harbour, including diesel driven equipment, two slush pumps, high-pressure hydraulic pump, hydraulic pump, conveying mechanism, derricking gear and drag head component；And it is positioned on workbench；Two slush pumps are installed on the rear side of conveying mechanism；Workbench front end passes through activity axis connection conveying mechanism；Above-mentioned workbench is fastened and fixed with four windlass all around.The construction method of desilting, step 1, installation and commissioning equipment；Step 2, desilting utensil moves into construction area, and front and rear eight words anchor/cable；Step 3, desilting drag head component is put in into preset coordinates point with reference to tidal level；Step 4, using segmentation, construction in layer；Step 5, after transferring drag head component, transverse moving left and right is carried out by tense-lax anchor hawser, is so repeatedly completed operation.Participated in during such scheme operation below harbour without personnel, it is easy to operate, safe and reliable in whole implementation process.
Description
Technical field
The invention belongs to port engineering dredging technology field, more particularly to desilting utensil below a kind of harbour and its construction
Method.
Background technology
With the high speed development of China's port construction scale of construction, large quantities of newly-built harbours and berth rapidly put into effect, together
When due near harbour soil body alluvial for a long time cause the reduction of dock structure security performance, now this is special for desilting below harbour
Dredging work, which seems, to be even more important.Intensive pile group structure be present below harbour long piled wharf, under time factor, by tide,
Stormy waves, which holds mud or wharf anchors upgrading etc. under the arm, to be influenceed, and cleaning construction need to be carried out to the warp below harbour and undisturbed soil, due to sky
Between it is narrow, cause some big-and-middle-sized ripe dredging plants can not carry out operation.And the specialty introduced from foreign countries is desilted and dredged equipment
Price is high, rate of return on investment is low.Current such desilting engineering mainly uses slush pump directly to inhale and washed away with artificial giant
Mode implement, work efficiency is low, potential safety hazard is big, quality control degree is poor.The desilting utensil simple installation, drag head rush equipped with high pressure
(operating) water nozzle and small-sized rotation twist device, and ability of breaking ground is good, and quality and safe effect are good.
The content of the invention
The present invention provides one kind for technical problem present in solution known technology and ties easy to use, raising work effect
Rate, the construction method for the desilting utensil that narrow space is constructed, by the desilting utensil and construction method, can be solved below harbour
Under harder soil condition under such construction efficiency, the problems such as security performance is low, quality control degree difference.
The present invention is adopted the technical scheme that to solve technical problem present in known technology：
Desilting utensil below a kind of harbour, including diesel driven equipment, two slush pumps, high-pressure hydraulic pump, hydraulic pump, conveying
Mechanism, derricking gear and drag head component；The diesel driven equipment is slush pump, high-pressure hydraulic pump, hydraulic pump provide power, is put
It is placed on workbench；Two slush pumps are installed on the rear side of conveying mechanism, and one end of slush pump is connected to output pipe；Work
Platform front end passes through activity axis connection conveying mechanism；Above-mentioned workbench has four windlass all around, the anchor of front side two
The hawser of machine is lain on Pile Foundation of Wharf in the same direction respectively, and anchor is fixed in the windlass throwing in the same direction of rear side two；
Conveying mechanism is reinforced integral by ironware, including inhales defeated pipeline, fluid pressure line, high-pressure flush pipeline and depth and visits
Survey connecting line and suspension hook；Inhale the mud suction mouth connection drag head component and slush pump of defeated pipeline, fluid pressure line connection hydraulic pump and rotation
Twist the nozzle of drive device, high-pressure flush pipeline connection high-pressure hydraulic pump and drag head component, depth finding connecting line connection sounding instrument
And depth measurement probe；
The drag head component is in horn-like structure, including the rotation of high-pressure flush nozzle, hydraulic-driven is twisted, depth measurement is popped one's head in and protection
Cover, protective cover or so outside are fixed with elastomeric material protection structure；High-pressure flush nozzle is evenly arranged on the inside of low protection cover,
Depth measurement, which is popped one's head in, is fixed on the rear side of drag head component；
Derricking gear includes driving the hoist engine on front side of bridge, and the steel wire rope of hoist engine passes through portal frame top
Pulley connects conveying mechanism.
Using the construction method of above-mentioned desilting utensil desilting below harbour, this method comprises the following steps：
Step 1, workbench, installation and commissioning equipment are selected；
Step 2, desilting utensil moves into construction area, throws eight word anchors/cable before and after system respectively, and preceding double cables tie up to Pile Foundation of Wharf
On, not preferably less than 80 meters of rear anchor length, horizontal spacing be not preferably less than 60 meters with before and after ensureing ship, it is traversing smooth；
Step 3, desilting drag head component is put in into preset coordinates point with reference to tidal level, drag head components side rear is equipped with hydraulic type water
Deep depth measurement probe；Then operation elevation is gone out according to the depth measurement probe numerical computations of water level at that time and combination drag head, it is high according to design
Journey progressively carries out spoil disposal operation from inside to outside；Using principle loose after first twisting during mobile operation, with carried on job platform four
Platform windlass selects suitable tidal level to ensure that ship movement is steady as mobile power, collision free Pile Foundation of Wharf；
Step 4, when desilting utensil is constructed, using segmentation, construction in layer, with the 0.8~1 of the maximum traversing distance of job platform
Times it is one section, vertical direction 0.5m~1.5m is one layer, to ensure pile sinking security, each reserved 0.5 meter ampere in stake both sides during operation
Full distance；
Step 5, after the decentralization of drag head component, transverse moving left and right is carried out by tense-lax anchor hawser, while opens high-pressure flush, in case of compared with
Hard mud layer is then also opened rotation and twisted, and rotation twists upper regular arrangement and twists tooth, inhales mud when traversing, reaches and is lifted up drag head behind border and is layered
Height, then tighten up rear anchor ship and be moved rearwards, drag head component is transferred, be traversing again, is so repeatedly completed operation.
The present invention has the advantages and positive effects of：The present invention uses above-mentioned technical proposal, and conveying lever can be visited and extend code
Head lower section narrow space operation, the selection of workbench is relatively broad, effectively improves social resources on board allocative efficiency.Break ground energy
Power is strong, hard soil can be crushed, removed, and integrated operation is easy, and mass effect is good, efficiency high, and it is strong to greatly reduce work
Degree.The utensil is installed on the conventional equipments such as anchor ship, barge, participates in without personnel below harbour during operation, entirely implemented
It is easy to operate in journey, safe and reliable.The desilting utensil front end twists equipped with hydraulic spray and the small-sized rotation of hydraulic-driven, can be former to seabed
Shape soil is crushed, and substantially increases its breaking capacity and soil property adaptability, reliable construction quality, and work efficiency is notable.
The job platform that the Dredging Construction method of offer is related to can be by the use of dredging, hydraulic reclamation class piggy-back anchor ship, barge as flat
Platform is slightly transformed, and structure restoration is easy, improves the adaptability of ship platform, is provided in terms of ship platform selection
Great space.This engineering method is based on the ripe way of traditional desilting project, for desilting engineering soil property feature and technology
It is required that further optimizing device structure, quality is rationally effectively controlled, avoids potential safety hazard to greatest extent, flow is simple and direct
Controllable, basic guarantee social resources maximally utilize, and improve overall operation efficiency.
Brief description of the drawings
Fig. 1 is the top view of desilting utensil；
Fig. 2 is the structural representation that present example provides；
Fig. 3 is the A portions profile in Fig. 1；
Fig. 4 is that the rotation in Fig. 3 twists structural representation；
Fig. 5 is the top view for the desilting equipment that present example provides；
Fig. 6 is the long piled wharf schematic diagram that present example provides.
In figure：1st, workbench；2nd, windlass；3rd, hoist engine；4th, Diesel Driven equipment；5th, high-pressure hydraulic pump；6th, hydraulic pump；
7th, portal frame；8th, pulley；9th, steel wire rope；10th, output pipe；11st, movable axis；12nd, slush pump；13rd, conveying mechanism；14th, drag head
Component；14-1, protective cover；15th, rear hanger；16th, preceding suspension hook；17th, rotation twists driving；18th, depth measurement is popped one's head in；19th, rotation twists；20th, upper spray
Mouth；21st, lower nozzle；22 twist tooth；23 Pile Foundation of Wharf；24 construction mud layers.
Embodiment
In order to further understand the content, features and effects of the present invention, hereby enumerating following examples, and coordinate accompanying drawing
Describe in detail as follows：
Fig. 1 to Fig. 6, a kind of harbour lower section desilting utensil, including 4, two slush pumps 12 of diesel driven equipment are referred to, it is high
Water pump 5, hydraulic pump 6, conveying mechanism 13, derricking gear and drag head component 14；The diesel driven equipment is slush pump 12, height
Water pump 5, hydraulic pump 6 provide power, are placed on workbench 1；After two slush pumps 12 are installed on conveying mechanism 13
Side, one end of slush pump, which is connected to, inhales defeated pipeline, and the other end is connected to output pipe 10；The front end of workbench 1 passes through movable axis
11 connection conveying mechanisms 13；Above-mentioned workbench 1 has four windlass 2 all around, the hawser difference of the windlass of front side two
Lie on Pile Foundation of Wharf in the same direction, anchor is fixed in the windlass throwing in the same direction of rear side two；
Conveying mechanism 13 is reinforced integral by ironware, including inhales defeated pipeline, fluid pressure line, high-pressure flush pipeline and depth
Detect connecting line and suspension hook；Inhale the mud suction mouth connection drag head component 14 and slush pump 12 of defeated pipeline, fluid pressure line 13-2 connections
Hydraulic pump 6 and rotation twist the nozzle of drive device 17, high-pressure flush pipeline connection high-pressure hydraulic pump 5 and drag head component, the nozzle bag
Include top nozzle 20 and lower nozzle 21, depth finding connecting line connection sounding instrument and depth measurement probe 18；Above-mentioned suspension hook includes hanging oneself
Hook 15 and lower suspension hook 16；The outer surface for inhaling defeated pipeline is packed in respectively, as hoist engine folding and unfolding hawser reaches adjustment desilting utensil
The purpose of depth is transferred, the length at hook 15 apart from drag head component 14 visits the amount of stretching to be maximum below harbour.
The drag head component 14 is in horn-like structure, including high-pressure flush top nozzle 20 and lower nozzle 21, hydraulic-driven rotation
Twist and be fixed with elastomeric material protection structure on the outside of 19, depth measurement probe, 18 and protective cover 14-1, protective cover or so；Sprayed in high-pressure flush
Mouth 20 and lower nozzle 21 are evenly arranged on the inside of low protection cover, and high-pressure flush nozzle 20,21 is evenly arranged in low protection cover
Inner side, nozzle direction is in alternately fixed angle over the ground, to increase its cutting power；Rotation twist 19 in cylinder, using centre position as
Boundary twists tooth 22 according to forward-reverse spiral rule welding, side force is cancelled each other, keeps the stability of drag head, harder original-pack when running into
When native, hydraulic pressure reamer is opened, strengthens hack ability；Cause to damage when preventing drag head component from colliding with pile group, depth measurement probe 18 is solid
Due to the rear side of drag head component；
Derricking gear includes driving the hoist engine 3 on front side of bridge, and the steel wire rope 9 of hoist engine is pushed up by portal frame 7
The pulley 8 at end connects conveying mechanism 13.
Using above-mentioned technical proposal, conveying lever, which can be visited, extends narrow space operation below harbour, the selection of workbench compared with
To be extensive, social resources on board allocative efficiency is effectively improved.Ability of breaking ground is strong, hard soil can be crushed, removed, overall behaviour
Make simplicity, mass effect is good, efficiency high, greatly reduces labor intensity.The utensil is installed on into the routines such as anchor ship, barge to set
It is standby, participated in during operation below harbour without personnel, it is easy to operate, safe and reliable in whole implementation process.Match somebody with somebody the desilting utensil front end
There is hydraulic spray and the small-sized rotation of hydraulic-driven to twist, seabed undisturbed soil can be crushed, substantially increase its breaking capacity and
Soil property adaptability, reliable construction quality, work efficiency are notable.
Utilize the construction method of above-mentioned desilting utensil desilting below harbour, it is characterised in that：This method includes following
Step：
Step 1, workbench, installation and commissioning equipment are selected；
Step 2, desilting utensil moves into construction area, throws eight word anchors/cable before and after system respectively, and preceding double cables tie up to Pile Foundation of Wharf
On, not preferably less than 80 meters of rear anchor length, horizontal spacing be not preferably less than 60 meters with before and after ensureing ship, it is traversing smooth；
Step 3, desilting drag head component is put in into preset coordinates point with reference to tidal level, drag head components side rear is equipped with hydraulic type water
Deep depth measurement probe；Then operation elevation is gone out according to the depth measurement probe numerical computations of water level at that time and combination drag head, it is high according to design
Journey progressively carries out spoil disposal operation from inside to outside；Using principle loose after first twisting during mobile operation, with carried on job platform four
Platform windlass selects suitable tidal level to ensure that ship movement is steady as mobile power, collision free Pile Foundation of Wharf；
Step 4, when desilting utensil is constructed, using segmentation, construction in layer, with the 0.8~1 of the maximum traversing distance of job platform
Times it is one section, vertical direction 0.5m~1.5m is one layer, to ensure pile sinking security, each reserved 0.5 meter ampere in stake both sides during operation
Full distance；
Step 5, after the decentralization of drag head component, transverse moving left and right is carried out by tense-lax anchor hawser, while opens high-pressure flush, in case of compared with
Hard mud layer is then also opened rotation and twisted, and mud is inhaled when traversing, is lifted up the height that drag head is layered after reaching border, then tightens up rear anchor
Ship is moved rearwards, and drag head component is transferred, be traversing again, is so repeatedly completed operation.
The job platform that the Dredging Construction method of offer is related to can be by the use of dredging, hydraulic reclamation class piggy-back anchor ship, barge as flat
Platform is slightly transformed, and structure restoration is easy, improves the adaptability of ship platform, is provided in terms of ship platform selection
Great space.This engineering method is based on the ripe way of traditional desilting project, for desilting engineering soil property feature and technology
It is required that further optimizing device structure, quality is rationally effectively controlled, avoids potential safety hazard to greatest extent, flow is simple and direct
Controllable, basic guarantee social resources maximally utilize, and improve overall operation efficiency.
It is described above to be only the preferred embodiments of the present invention, any formal limitation not is made to the present invention,
Every technical spirit according to the present invention belongs to any simple modification made for any of the above embodiments, equivalent variations and modification
In the range of technical solution of the present invention.
Claims (1)
- A kind of 1. construction method of desilting utensil desilting below harbour, it is characterised in that：The desilting utensil of use drives including diesel oil Dynamic equipment (4), two slush pumps (12), high-pressure hydraulic pump (5), hydraulic pump (6), conveying mechanism (13), derricking gear and drag head group Part (14)；The diesel driven equipment is slush pump (12), high-pressure hydraulic pump (5), hydraulic pump (6) offer power, is placed in work Make on platform (1)；Two slush pumps (12) are installed on the rear side of conveying mechanism (13), and one end of slush pump is connected to output pipe (10)；Workbench (1) front end connects conveying mechanism (13) by movable axis (11)；Above-mentioned workbench (1) has front and rear The windlass (2) of left and right four, the hawser of two windlass in front side are lain on Pile Foundation of Wharf in the same direction respectively, the windlass throwing in the same direction of rear side two Fixed anchor；Conveying mechanism (13) is reinforced integral by ironware, including inhales defeated pipeline, fluid pressure line, high-pressure flush pipeline and depth and visits Survey connecting line and suspension hook；Inhale the mud suction mouth connection drag head component and slush pump (12) of defeated pipeline, fluid pressure line connection hydraulic pump (6) and rotation twists the nozzle of drive device (17), high-pressure flush pipeline connection high-pressure hydraulic pump (5) and drag head component, and depth finding connects Wiring connects sounding instrument and depth measurement probe (18)；The drag head component (14) is in horn-like structure, including the rotation of high-pressure flush nozzle, hydraulic-driven twists (19), depth measurement is popped one's head in (18) and protective cover (14-1), protective cover or so outside are fixed with elastomeric material protection structure；High-pressure flush nozzle is evenly arranged On the inside of upper low protection cover, depth measurement probe (18) is fixed on the rear side of drag head component；Derricking gear includes driving the hoist engine (3) on front side of bridge, and the steel wire rope (9) of hoist engine passes through portal frame (7) Pulley (8) the connection conveying mechanism (13) on top；Using above-mentioned desilting utensil, the construction method of desilting comprises the following steps below harbour：Step 1, workbench, installation and commissioning equipment are selected；Step 2, desilting utensil moves into construction area, throws eight word anchors/cable before and after system respectively, and preceding double cables tie up to Pile Foundation of Wharf (23) On, not preferably less than 80 meters of rear anchor length, horizontal spacing be not preferably less than 60 meters with before and after ensureing ship, it is traversing smooth；Step 3, desilting drag head component is put in into preset coordinates point with reference to tidal level, drag head components side rear is surveyed equipped with the hydraulic type depth of water Deep probe；Then according to water level at that time and the depth measurement probe numerical computations of drag head combined go out operation elevation, according to design altitude by Step carries out spoil disposal operation from inside to outside；Using principle loose after first twisting during mobile operation, with four anchors carried on job platform Machine selects suitable tidal level to ensure that ship movement is steady as mobile power, collision free Pile Foundation of Wharf；Step 4, when desilting utensil is constructed, using segmentation, construction in layer, 0.8~1 times with the maximum traversing distance of job platform is One section, vertical direction 0.5m~1.5m is one layer, to ensure pile sinking security, each reserved 0.5 meter ampere range in stake both sides during operation From；Step 5, after the decentralization of drag head component, transverse moving left and right is carried out by tense-lax anchor hawser, while opens high-pressure flush, in case of compared with stiff mud Layer is then also opened rotation and twisted, and rotation twists upper regular arrangement and twists tooth (22), inhales mud when traversing, reaches and is lifted up drag head behind border and is layered Height, then tighten up rear anchor ship and be moved rearwards, drag head component is transferred, be traversing again, is so repeatedly completed operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610465528.5A CN105951909B (en) | 2016-06-21 | 2016-06-21 | Desilting utensil and its construction method below a kind of harbour |
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|---|---|---|---|
| CN201610465528.5A CN105951909B (en) | 2016-06-21 | 2016-06-21 | Desilting utensil and its construction method below a kind of harbour |
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| CN105951909A CN105951909A (en) | 2016-09-21 |
| CN105951909B true CN105951909B (en) | 2018-04-06 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108487357A (en) * | 2018-04-13 | 2018-09-04 | 张剑 | A kind of water conservancy chute |
| CN110056031A (en) * | 2019-03-05 | 2019-07-26 | 中船第九设计研究院工程有限公司 | A kind of trailing suction hopper dredger high-pressure flush system |
| CN112709274A (en) * | 2020-12-22 | 2021-04-27 | 武汉理工大学 | Water-spraying jet rock digging device of dredging dredger |
| CN116641431A (en) * | 2023-05-30 | 2023-08-25 | 中交第四航务工程勘察设计院有限公司 | Dredging method suitable for full-tide motorized positioning operation under high-pile wharf beam plate |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2349266Y (en) * | 1998-08-25 | 1999-11-17 | 孙加林 | Rotary cutting suction disc type underwater soil-shifting machine |
| CN2435432Y (en) * | 2000-08-16 | 2001-06-20 | 陶松垒 | Pollutionless sludge removing and conveying equipment |
| FR2860532B1 (en) * | 2003-10-03 | 2007-04-27 | Michel Poteur | DEVICE FOR DEVASEMENT WITHOUT POLLUTION OR NOTABLE WATER CONSUMPTION |
| CN204001012U (en) * | 2014-06-26 | 2014-12-10 | 三一海洋重工有限公司 | A kind of multi-functional dredger |
| CN104452852A (en) * | 2014-11-19 | 2015-03-25 | 江苏荣基重工科技有限公司 | Operating mechanism of bucket-wheel dredger |
| CN205975745U (en) * | 2016-06-21 | 2017-02-22 | 中交天航港湾建设工程有限公司 | Pier below desilting utensil |
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Effective date of registration: 20211015 Address after: No.8, Dongheng street, Hangu, Binhai New Area, Tianjin 300450 Patentee after: CCCC TIANJIN DREDGING HARBOUR CONSTRUCTION ENGINEERING Co.,Ltd. Patentee after: CCCC TIANJIN DREDGING Co.,Ltd. Patentee after: CCCC-TDC BINHAI ENVIRONMENTAL CHANNEL DREDGING Co.,Ltd. Patentee after: CCCC-TDC ENVIRONMENTAL ENGINEERING Co.,Ltd. Patentee after: CCCC TIANJIN PORT & WATERWAY PROSPECTION & DESIGN RESEARCH INSTITUTE Co.,Ltd. Patentee after: NATIONAL ENGINEERING RESEARCH CENTER OF DREDGING TECHNOLOGY AND EQUIPMENT Address before: No.8, Dongheng street, Hangu, Binhai New Area, Tianjin 300450 Patentee before: CCCC TIANJIN DREDGING HARBOUR CONSTRUCTION ENGINEERING Co.,Ltd. Patentee before: CCCC TIANJIN DREDGING Co.,Ltd. Patentee before: CCCC-TDC BINHAI ENVIRONMENTAL CHANNEL DREDGING Co.,Ltd. Patentee before: CCCC-TDC ENVIRONMENTAL ENGINEERING Co.,Ltd. Patentee before: CCCC TIANJIN PORT & WATERWAY PROSPECTION & DESIGN RESEARCH INSTITUTE Co.,Ltd. |
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