CN102874384A - Simple dredger for gravels in flowing water and method for dredging gravels - Google Patents
Simple dredger for gravels in flowing water and method for dredging gravels Download PDFInfo
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- CN102874384A CN102874384A CN2012103264036A CN201210326403A CN102874384A CN 102874384 A CN102874384 A CN 102874384A CN 2012103264036 A CN2012103264036 A CN 2012103264036A CN 201210326403 A CN201210326403 A CN 201210326403A CN 102874384 A CN102874384 A CN 102874384A
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- buoyancy aid
- work pile
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- sandstone
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Abstract
The invention discloses a simple dredger for gravels in flowing water and a method for dredging the gravels. The simple dredger comprises a floating body platform, wherein a flow guide warped body is arranged at one end of the floating body platform; a dredging main unit is arranged on the floating body platform; positioning devices are respectively arranged on two sides of the floating body platform; an auxiliary running structure is arranged on the floating body platform; each positioning device comprises a vertical column support fixed at the edge on one side of the floating body platform; a vertical guide device is arranged on the side of the floating body platform, which is opposite to the vertical column support, and connected with a positioning pile; a positioning pile lifting device is arranged between the vertical column support and the positioning pile; a positioning downward pressing device is arranged between the floating body platform and the positioning pile; and a positioning pile limiting and positioning device is arranged between the floating body platform and the positioning pile. By the simple dredger, a dynamic running structure is not required; and the simple dredger is simple in structure and convenient to use.
Description
Technical field
The invention belongs to bridge pier Reinforcement Technology in the flowing water, when being specifically related in a kind of water the bridge pier maintenance and reinforcement, excavate water bed (riverbed, river bed and sea bed etc.) the tectal dredger of sandstone and construction method.
Background technology
In the water during bridge pier maintenance and reinforcement, usually need to select special dredger (can not with adopting the sand ship) that water bed (riverbed, river bed and sea bed etc.) sandstone overplate is dug to certain depth and reinforce again.Yet, in dynamic current, China southern and northern all without moulding, that adapt, easily specially in the flowing water sand and gravel dredge(r) for.
South and coastland in China's water system and boats and ships prosperity: in sandstone when excavation outside the bridge pier in the Static Water, (depth of water may adopt amphibian digging machine during less than 1.2m to find dredger; The depth of water may adopt at the association of heavy construction barge+excavating machine or special digging pumping vessel during greater than 1.2m); When the bridge pier external-open digs in the Dynamic Water, may adopt association's (having barge orientation problem, digging machine mobile security problem) of heavy construction barge+excavating machine or special digging pumping vessel (quantity is few, volume is large, cost is high, mostly be the hydraulic braking location).When the depth of water is larger, usually can be because underneath clearance be less limited, the water bed overplate of operation cross closely knit very difficult excavation, excavating equipment and cause that in the current factor such as be anxious to help to locate existing excavating equipment can't use.
At China's water system and the underdeveloped northern area of boats and ships, usually not only without the land and water dual-purpose digging machine, but also without large-scale engineering barge, more without special digging pumping vessel, execution conditions and economic condition are more limited.Tend to because space under bridge is narrow and small that operation is limited, the water bed overplate is crossed closely knit very difficult excavation, excavating equipment is difficult to the location in torrent, excavating equipment is easy to the effects limit such as stranded in shallow water, basically can not find the excavating equipment that is adapted to the outer dynamically water bed overplate of bridge pier excavation.
Along with China's expanding economy, bridge pier maintenance and reinforcement engineering at the labour bridge increases, existing excavating equipment will be difficult to adapt to, and in conjunction with the present situation of Bridges in Our Country maintenance and reinforcement engineering, be necessary very much to develop a kind of easy, economic sandstone excavating equipment that is adapted to each area.
Summary of the invention
The object of the invention is to that operation is limited, the water bed overplate is crossed closely knit very difficult excavation based on existing space under bridge is narrow and small, excavating equipment is difficult to locate in torrent, excavating equipment is easy in shallow water under the construction environment of the effects limit such as stranded, propose the method that the simple and easy dredger of sandstone in a kind of flowing water and middle sandstone thereof excavate, thereby address the above problem.
The technical scheme of the simple and easy dredger of sandstone is in the flowing water of the present invention: it comprises the buoyancy aid platform, buoyancy aid platform one end arranges water conservancy diversion and sticks up body, the excavation main frame is set on the buoyancy aid platform, and the both sides of buoyancy aid platform are provided with registration device respectively are set, and the buoyancy aid platform is provided with auxiliary walking structure; Described registration device comprises the column support that is fixed on buoyancy aid platform one lateral edges, position with respect to column support on the side board of buoyancy aid platform is provided with the vertically-guided device, the vertically-guided device is connected with work pile, be provided with the work pile bont between column support and the work pile, be provided with the work pile hold-down devices between buoyancy aid platform and the work pile; Be provided with the work pile spacing positioning apparatus between vertically-guided device and the work pile.
Described auxiliary walking structure is artificial hawser winch mechanism.
Dredger of the present invention need not the power walking structure, utilizes and excavates main frame, and auxiliary walking structure is realized walking, and is simple in structure, easy to use; The location of buoyancy aid platform when registration device is realized excavating construction, its structural framing is simple, and is easy to operate.The ingenious location that utilizes the work pile hold-down devices to realize work pile.
The work pile spacing positioning apparatus comprises the locating rack that is connected and fixed with the buoyancy aid platform, and work pile passes locating rack, and work pile vertically is provided with a plurality of knock holees, is connected by locating dowel pin between the knock hole on locating rack and the work pile.
When said structure further guarantees to locate, the safety of work pile.
Described locating rack comprises the lower supporting plate that is connected and fixed with the buoyancy aid platform, upper support frame, connect anchor structure between lower supporting plate and the upper support frame, upper support frame comprises the up and down dull and stereotyped and left and right sides riser that connects between the flat board up and down, up and down dull and stereotyped and left and right sides riser formation rectangle frame structure; Be symmetrical arranged the knock hole that cooperates with locating dowel pin on the riser of the left and right sides.
The Stability Analysis of Structures of locating rack, positioning supports intensity is high.
The vertically-guided device comprises pilot sleeve, the support and connection plate that is connected with pilot sleeve, and the support and connection plate is connected with the buoyancy aid platform.It is simple in structure, and stable, intensity is high.
Work pile passes pilot sleeve, and the work pile top is provided with hanger.The installation of being convenient to the work pile hold-down devices connects and use.
The work pile hold-down devices comprises the chain block that is located at the work pile top, and hauling rope one end of chain block is connected with buoyancy aid platform end face, and the other end is traction end.
The ingenious chain block that utilizes is implemented to press down, and is simple in structure, easy to operate.
Described artificial hawser winch mechanism comprises the rotating cylinder that is supported on the buoyancy aid platform, establishes hinging supporting shaft in the rotating cylinder, and connection rotating plate on the rotating cylinder, flap are radially established sleeve; Connection cable on the rotating cylinder, escapement is established in the rotating cylinder bottom; Described escapement comprises the positioning plate that even circumferential arranges on the firm banking, is hingedly connected with the sour jujube plate on the rotating cylinder, and the sour jujube plate is corresponding with positioning plate.
Artificial hawser winch mechanism is simple, easy to operate.
The technical scheme of the method that the middle sandstone of the simple and easy dredger of sandstone excavates in the flowing water of the present invention is: the buoyancy aid platform is fastened hawser, start the excavation main frame, dig water-bed fixing by excavating the main frame scraper bowl, utilize dipper-arm and scraper bowl counter-force to drive buoyancy aid platform movement and/or rotation, the associating hawser drives the slow displacement of hull, behind the place that needs to excavate, utilize excavation main frame scraper bowl to dig water-bed fixedly buoyancy aid platform, hanging hawser fixes, recycling work pile hold-down devices is pressed into work pile the water bed overplate synchronously, until the stable horizontality that holds up into of hull, the scraper bowl that excavates main frame leaves first the riverbed, according to the order in downstream behind the first upstream tap point is implemented excavation again.
The method utilization is excavated the antagonistic force realization buoyancy aid platform of main frame scraper bowl and is just located the attitude adjustment.The method is simple,
The technical characterictic such as good, the advanced technology of sand and gravel dredge(r) comformability in the flowing water of the present invention, simple in structure, easy to make, good operability, safe and reliable, good economy performance, application prospect are good:
Comformability is good: can be used for the pebble bed excavation, closely knit channel cleanout, the operation at sea such as small-sized installation, lifting, piling and pile pulling; Be adapted to especially the less (1.2m ~ 5m) of the depth of water, flow velocity delays (2m/s is following), speed of travel requirement little (in the 1m/s), travel distance is shorter, the water project that the water bed overplate is closely knit, construction space is limited (Bridge repair and reinforcement engineering and relevant hydraulic engineering).Can be before excavating machine, left and right surpassing in the 180 degree scopes rotate freely operation, be adapted to the excavation work on less headroom wall body structure next door (outer such as bridge pier).
Advanced technology: at present domestic there is no is exclusively used in the dredger waterborne of using at labour bridge pier Bridge repair and reinforcement, and sand and gravel dredge(r) has been filled up this blank in the flowing water of the present invention.
Simple in structure: as only to need simple buoyancy aid platform and water conservancy diversion to stick up the body unit combination and can form floating platform; Only need a small amount of shaped steel, steel plate to connect and compose device, and can realize artificial location and the special power walking of nothing with combinations such as steel rope, chain blocks; Only need top turntable and the equipment of ready-made digging machine to be fixed in floating platform as the excavation main frame; Only need 2 light-duty work piles and shaped steel, steel plate and chain block to be connected and to realize digging operation location in the flowing water; Need not to install automatically controlled especially, numerical control is main hightech assembly.
Easy to make: registration device, manpower winch and attaching parts all can be in the auxiliary lower field fabrications of small-sized hanging device.Floating platform and excavation main frame can obtain in market, can realize by rationalization.
Good operability: when dredger uses, only need 6 crewman (1 driver, 1 commander's hand, 4 operators) can finish all excavation work, unskilled labour power can be competent at operation through training all; Operating process and operating order are independent clear and definite, can decide the people and determine a post.
Safe and reliable: dredger is the market shaped article and device combines, the stable performance of system synthesis each several part; Simple in structure, to be convenient to check, structural safety is secure; The use procedure special-less process, operating mode is stable, is convenient to control, and technical risk is little; Under the combined action of two work piles, counterweight and buoyancy, the structure location is reliable, and digging process is steady.
Good economy performance: 1. dredger is mainly by market shaped article and installation composition, and assembling and processing technology are simple, and cost of manufacture is lower; 2. certainly do hull and reduced a large amount of ship chartering expenses; 3. registration device adopts the light-duty work pile of manually driven, compares energy consumption and the correlative charges of saving steel and hydraulic braking with the hydraulic pressure gravity type boat davit work pile of routine; 4. dredger is under stable position, can realize the excavation work efficiency of normal excavating machine, relatively artificial wet excavation, small-sized grab bucket excavation, work efficiency is remarkable, can be the double-wall steel cofferdam construction on the closely knit cobble riverbed, can improve the construction method that employing " excavates afterwards first ", create preferably economic benefit.
The utilization prospect is good: sand and gravel dredge(r) is as water project equipment in the flowing water, has comformability good, the advantage such as stable performance and economical and convenient, can be adapted to preferably the present situation of Chinese bridge engineering, both can be at labour bridge pier maintenance and reinforcement technical guarantee was provided, also can be relevant water project operation Technical Reference is provided, have preferably application prospect.
Description of drawings
The simple and easy dredger integral structure of sandstone schematic diagram in Fig. 1 flowing water.
Fig. 2 dredger integral structure schematic top plan view.
Fig. 3 positioning device structure master looks schematic diagram.
Schematic diagram is looked on Fig. 4 positioning device structure left side.
Fig. 5 work pile schematic diagram.
Fig. 6 locating rack structure schematic top plan view.
Fig. 7 locating rack part elevation structural representation.
Fig. 8 lower supporting plate structure schematic top plan view.
Fig. 9 assists the walking structure structural representation.
Figure 10 escapement schematic diagram I.
Figure 11 escapement schematic diagram II.
The specific embodiment
As shown in Figure 1, 2, buoyancy aid platform 100 is to be formed by connecting by a plurality of standard steel buoyancy tanks unit, and buoyancy aid platform 100 1 ends arrange water conservancy diversion and stick up body 101.Connect on the buoyancy aid platform 100 to support and excavate main frame 200, excavate main frame 200 and select top turntable and the equipment of the medium-sized single bucket hydraulic excavator of market moulding to form.The top turntable is comprised of turn table, hydraulic actuator, servocontrol device, engine installation, driver's cab, a/c system, electric system etc.Equipment is directly to finish to excavate professional device, and three parts are hinged forms by swing arm, dipper, scraper bowl etc.Upper stage and equipment can directly be used the appropriate section of single bucket hydraulic excavator, need to select suitable brachium and dipper capacity (being determined by cutting depth), and be fixed on the pivoting support of stiffening girder on the buoyancy aid platform 100, substituted the running gear of single bucket hydraulic excavator by buoyancy aid platform 100.
It is shown in Figure 2 that the both sides of buoyancy aid platform 100 are provided with registration device 300(), buoyancy aid platform 100 is provided with auxiliary walking structure 400.Auxiliary walking structure 400 adopts artificial hawser winch mechanism to realize walking without prime power.
As shown in Figure 9, artificial hawser winch mechanism comprises the rotating cylinder 401 that is supported on the buoyancy aid platform, the rotating cylinder 401 interior pivot shafts 403 that arrange, and pivot shaft 403 lower ends arrange firm banking 402, establish escapement between rotating cylinder 401 lower ends and the firm banking 402; Flap 404 is established on rotating cylinder 401 tops, and it is spacing by limit coil 410 that pivot shaft 403 passes flap 404; Be disposed radially sleeve 405 on the flap 404, sleeve 405 is used for the suit lever, drives winch mechanism with manpower.
Shown in Fig. 9,10, escapement comprises the rotating cylinder base plate 406 that rotating cylinder 401 bottoms are fixing; Be fixedly connected with hinging supporting shaft 407 along circumference on the rotating cylinder base plate 406, it is the sour jujube plate that hinging supporting shaft 407 stretches out the outer parts of the rotating cylinder base plate 406 fork 408(that is articulated and connected), on firm banking 402, be provided with a plurality of positioning plates 409 along the circumference spaced radial; Rotating cylinder base plate 406 is supported on the positioning plate 409, and positioning plate 409 stretches out rotating cylinder base plate 406, and fork 408 is bow.It is spacing that fork 408 can stretch out the part of rotating cylinder base plate 406 by positioning plate 409.Be provided with bearing 412 between firm banking 402 and the rotating cylinder base plate 406.
Hawser around the home on the rotating cylinder 401.
As shown in figure 11, its working process is: lever 411 is inserted in the sleeve 405, manual drive rotating cylinder 401 rotates, drive fork 408 in rotating cylinder 401 rotation processes and rotate, fork 408 is behind process positioning plate 409, because Action of Gravity Field, the other end of fork 408 turns and drops on two firm bankings 402 between the positioning plate 409, this moment, fork 408 formed spacing stopping through the side of positioning plate 409 to fork 408, so that sleeve 405 can not reverse, formed the ratchet motion.
As shown in Figure 4, registration device comprises the column support that is fixed on buoyancy aid platform one lateral edges, and column support is made of two columns 301 and two column top connecting cross beams 302; Hang the work pile bont on the crossbeam 302, the work pile bont comprises that the chain block static line is hung on the chain block 303 on the crossbeam 302, and the lifting end of chain block 303 is connected with work pile 320, and pulling traction rope can be realized the lifting of work pile 320.
Position with respect to column support on the side board of buoyancy aid platform is provided with vertically-guided device 340.The vertically-guided device is connected with work pile.The present embodiment as shown in Figure 4, vertically-guided device 340 comprises pilot sleeve 341, the support and connection plate that is connected with pilot sleeve 341, the support and connection plate is connected with buoyancy aid platform side board.The support and connection plate comprises the top board 342 that is connected with buoyancy aid platform side board top, with buoyancy aid platform side board middle part connecting middle plate 343, and base plate 344.
The work pile hold-down devices comprises that the chain block 323(that is hung on hanger 322 is equivalent to the lifting end of existing chain block 323 is connected with hanger 322), the buoyancy aid platform is provided with static line and connects otic placode 324, the static line of chain block 323 is connected with hauling rope guiding otic placode 324, because the height of hanger 322 connects otic placode 324 greater than static line, form the chain block traction system of oppositely installing, when the hauling rope of traction chain block 323, just form the downforce to work pile, realize work pile decline location action.
Be provided with work pile spacing positioning apparatus 500 between buoyancy aid platform and the work pile.
The work pile spacing positioning apparatus comprises the locating rack that is connected and fixed with buoyancy aid platform 100 as shown in Figure 4, and locating rack comprises the lower supporting plate that is connected and fixed with the buoyancy aid platform, and upper support frame 350 connects anchor structure between lower supporting plate and the upper support frame.
Lower supporting plate is same plates with the top board 342 that is used for supportive guiding sleeve 341 in the present embodiment, as shown in Figure 8, it is the T-shape plate, offers sleeve hole 348 on it, pilot sleeve 341 passes sleeve hole 348, and sleeve hole 348 both sides are provided with four anchor pole connecting bores 349.
Shown in Fig. 6,7, upper support frame 350 comprises up and down dull and stereotyped 351,352 and the left and right sides riser 353,354 that connects between the flat board up and down, up and down dull and stereotyped and left and right sides riser formation rectangle frame structure; Be symmetrical arranged the knock hole 355 that cooperates with locating dowel pin on the riser of the left and right sides.
As shown in Figure 5, work pile 320 is provided with knock hole 321.Work pile 320 inner bottom parts are provided with back cover plate 328.
Lower supporting plate and upper support frame 350 utilize anchor pole 358 to connect into integral body.
Utilize apparatus of the present invention work progress to be:
Excavation method: before the excavation, check first hull, after guaranteeing safety, dig water-bed location by the scraper bowl that excavates main frame, hanging hawser fixes, synchronously work pile is pressed into the water bed overplate by the work pile hold-down devices again, until the stable horizontality that holds up into of hull, the locating dowel pin of work pile spacing positioning apparatus is implemented the location; During excavation, the scraper bowl that excavates main frame leaves first the riverbed, excavates (generally needing carrier to cooperate scarfing cinder) according to the order of the excavation point " downstream behind the first upstream " that designs again.Digging process is followed the tracks of the mode of operation of adjusting backpressure device and fender guard, keeps work pile reliably to locate.Other operation and protection are with reference to the related request of common hull.
Traveling method: at first rise work pile by the work pile bont and be fixed on the sleeve arrangement; Then with the good hawser of hull band (comprising the steel rope on the manpower winch), start the excavation main frame, dig water-bedly fixing at correct position by scraper bowl, drive hull by the scraper bowl counter-force and move and rotate, the associating hawser drives the slow displacement of hull, and (head sticks up the unit and keeps towards the current upstream side; Large distance moving then need repeat above step; When current are larger, large distance moving need towboat to cooperate or by special propeller-driven); Be with hawser after moving into place, by the work pile hold-down devices work pile be pressed into water bed overplate location again.
Claims (9)
1. the simple and easy dredger of sandstone in the flowing water, it comprises the buoyancy aid platform, and buoyancy aid platform one end arranges water conservancy diversion and sticks up body, and the excavation main frame is set on the buoyancy aid platform, the both sides that it is characterized in that the buoyancy aid platform arrange respectively registration device, and the buoyancy aid platform is provided with auxiliary walking structure; Described registration device comprises the column support that is fixed on buoyancy aid platform one lateral edges, position with respect to column support on the side board of buoyancy aid platform is provided with the vertically-guided device, the vertically-guided device is connected with work pile, be provided with the work pile bont between column support and the work pile, be provided with the work pile hold-down devices between buoyancy aid platform and the work pile; Be provided with the work pile spacing positioning apparatus between vertically-guided device and the work pile.
2. the simple and easy dredger of sandstone in the flowing water as claimed in claim 1, it is characterized in that the work pile spacing positioning apparatus comprises the locating rack that is connected and fixed with the buoyancy aid platform, work pile passes locating rack, work pile vertically is provided with a plurality of knock holees, is connected by locating dowel pin between the knock hole on locating rack and the work pile.
3. the simple and easy dredger of sandstone in the flowing water as claimed in claim 2, it is characterized in that described locating rack comprises the lower supporting plate that is connected and fixed with the buoyancy aid platform, upper support frame, connect anchor structure between lower supporting plate and the upper support frame, upper support frame comprises the up and down dull and stereotyped and left and right sides riser that connects between the flat board up and down, up and down dull and stereotyped and left and right sides riser formation rectangle frame structure; Be symmetrical arranged the knock hole that cooperates with locating dowel pin on the riser of the left and right sides.
4. the simple and easy dredger of sandstone in the flowing water as claimed in claim 1 is characterized in that the vertically-guided device comprises pilot sleeve, the support and connection plate that is connected with pilot sleeve, and the support and connection plate is connected with the buoyancy aid platform.
5. the simple and easy dredger of sandstone in the flowing water as claimed in claim 4 is characterized in that work pile passes pilot sleeve, and the work pile top is provided with hanger.
6. such as the simple and easy dredger of sandstone in the flowing water as described in claim 1 or 4, it is characterized in that the work pile hold-down devices comprises the chain block that is located at the work pile top, hauling rope one end of chain block is connected with buoyancy aid platform end face, and the other end is traction end.
7. the simple and easy dredger of sandstone in the flowing water as claimed in claim 1 is characterized in that described auxiliary walking structure is artificial hawser winch mechanism.
8. the simple and easy dredger of sandstone in the flowing water as claimed in claim 6 is characterized in that described artificial hawser winch mechanism comprises the rotating cylinder that is supported on the buoyancy aid platform, establishes hinging supporting shaft in the rotating cylinder, and connection rotating plate on the rotating cylinder, flap are radially established sleeve; Connection cable on the rotating cylinder, escapement is established in the rotating cylinder bottom; Described escapement comprises the positioning plate that even circumferential arranges on the firm banking, is hingedly connected with the sour jujube plate on the rotating cylinder, and the sour jujube plate is corresponding with positioning plate.
9. method that the middle sandstone of the simple and easy dredger of sandstone excavates in the flowing water as claimed in claim 1, the buoyancy aid platform is fastened hawser, start the excavation main frame, dig water-bed fixing by excavating the main frame scraper bowl, utilize dipper-arm and scraper bowl counter-force to drive buoyancy aid platform movement and/or rotation, the associating hawser drives the slow displacement of hull, behind the place that needs to excavate, utilize excavation main frame scraper bowl to dig water-bed fixedly buoyancy aid platform, hanging hawser fixes, recycling work pile hold-down devices is pressed into work pile the water bed overplate synchronously, until the stable horizontality that holds up into of hull, the scraper bowl that excavates main frame leaves first the riverbed, according to the order in downstream behind the first upstream tap point is implemented excavation again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210326403.6A CN102874384B (en) | 2012-09-06 | 2012-09-06 | Simple dredger for gravels in flowing water and method for dredging gravels |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210326403.6A CN102874384B (en) | 2012-09-06 | 2012-09-06 | Simple dredger for gravels in flowing water and method for dredging gravels |
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| CN102874384A true CN102874384A (en) | 2013-01-16 |
| CN102874384B CN102874384B (en) | 2015-05-27 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105544636A (en) * | 2014-09-19 | 2016-05-04 | 卜建余 | Double-bucket-wheel three-reamer cutter-suction underwater silt remover |
| WO2016201685A1 (en) * | 2015-06-18 | 2016-12-22 | 刘惠河 | Dredging device |
| CN108313218A (en) * | 2018-03-23 | 2018-07-24 | 江苏省船舶设计研究所有限公司 | A kind of marine mining and ore dressing platform |
| CN110696975A (en) * | 2019-11-08 | 2020-01-17 | 海南绿峰资源开发有限公司 | Bearing floating body of machine-made sand equipment and machining and sand collecting method thereof |
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| JP2006264343A (en) * | 2005-03-22 | 2006-10-05 | Ouchi Ocean Consultant Inc | Generating enrichment floating body |
| CN201169790Y (en) * | 2008-01-01 | 2008-12-24 | 许武 | Sliding amphibious dredging machine |
| CN201291991Y (en) * | 2008-11-26 | 2009-08-19 | 张志国 | Sullage digging pumping vessel for ocean intertidal zone |
| CN202169995U (en) * | 2011-07-22 | 2012-03-21 | 浙江省疏浚工程股份有限公司 | Hydraulic dredger with positioning piles |
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| CN2388223Y (en) * | 1999-08-17 | 2000-07-19 | 陈义锋 | Amphibian multi-functional excavator |
| JP2006264343A (en) * | 2005-03-22 | 2006-10-05 | Ouchi Ocean Consultant Inc | Generating enrichment floating body |
| CN201169790Y (en) * | 2008-01-01 | 2008-12-24 | 许武 | Sliding amphibious dredging machine |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105544636A (en) * | 2014-09-19 | 2016-05-04 | 卜建余 | Double-bucket-wheel three-reamer cutter-suction underwater silt remover |
| WO2016201685A1 (en) * | 2015-06-18 | 2016-12-22 | 刘惠河 | Dredging device |
| CN108313218A (en) * | 2018-03-23 | 2018-07-24 | 江苏省船舶设计研究所有限公司 | A kind of marine mining and ore dressing platform |
| CN110696975A (en) * | 2019-11-08 | 2020-01-17 | 海南绿峰资源开发有限公司 | Bearing floating body of machine-made sand equipment and machining and sand collecting method thereof |
| CN110696975B (en) * | 2019-11-08 | 2023-08-29 | 海南绿峰资源开发有限公司 | Bearing floating body of sand making equipment and processing and sand collecting method thereof |
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| Publication number | Publication date |
|---|---|
| CN102874384B (en) | 2015-05-27 |
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