CN105951837A - Floating guide positioning device suitable for mounting water pipe pile and application method thereof - Google Patents
Floating guide positioning device suitable for mounting water pipe pile and application method thereof Download PDFInfo
- Publication number
- CN105951837A CN105951837A CN201610382161.0A CN201610382161A CN105951837A CN 105951837 A CN105951837 A CN 105951837A CN 201610382161 A CN201610382161 A CN 201610382161A CN 105951837 A CN105951837 A CN 105951837A
- Authority
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- China
- Prior art keywords
- pile tube
- floating
- waterborne
- locating platform
- applicable
- Prior art date
- 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.)
- Pending
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/08—Sinking workpieces into water or soil inasmuch as not provided for elsewhere
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
The invention relates to the field of bridges, and discloses a floating guide positioning device suitable for mounting a water pipe pile. The device comprises a frame type floating positioning platform; the frame type floating positioning platform includes at least three frames connected end to end; the frames surround a pipe pile channel; multiple platform fixing devices are arranged around the floating positioning platform; and position adjusting devices are arranged on the frames, and are provided with extension parts for adjusting a horizontal position of the water pipe pile. The invention further discloses an application method of the floating guide positioning device suitable for mounting the water pipe pile. The floating guide positioning device is high in positioning precision of the water pipe pile and low in requirements on lifting equipment.
Description
Technical field
The present invention relates to bridge field, be specifically related to a kind of floating being applicable to pile tube waterborne installation
Guide locating device provided and a kind of guide locating device provided making of floating being applicable to pile tube waterborne installation
Use method.
Background technology
In the foundation construction of bridge, pile tube waterborne is application a kind of form, water
The installation of upper pile tube is one critical process in bridge foundation construction, usually uses fixed
Leading truck carries out guide-localization to pile tube waterborne, but along with bridge toward the development of Long span and
The tonnage of whole bridge structure is increasing, and the diameter of pile tube waterborne is the most increasing, fixed
The height of leading truck and deadweight also can correspondingly change, the highest, deadweight is relatively big to fixed
The requirement of the crane gear needed for leading truck self installation is the highest, and during operation, difficulty is relatively big,
Thus the fixed leading truck of employing of routine carries out guide-localization and has been difficult to full pile tube waterborne
The requirement of foot construction.
Summary of the invention
For defect present in prior art, it is an object of the invention to provide one and be applicable to
Pile tube waterborne install floating guide locating device provided and a kind of be applicable to pile tube waterborne install float
The using method that formula is guide locating device provided, high to the positioning precision of pile tube waterborne, and reset rising
Standby requirement is low.
For reaching object above, the present invention adopts the technical scheme that, including: the floating of frame-type
Locating platform, it includes the end to end frame of at least three, and described frame surrounds a pile tube and leads to
Road, and floating locating platform be provided around multiple platform fixing device；Described frame is provided with
Position regulator, described position regulator is provided with and adjusts the flexible of pile tube horizontal level waterborne
Parts.
On the basis of technique scheme, described position regulator includes:
One guidance set being fixed on described frame, described guidance set includes base plate and is mounted on
The guide groove of base plate, and described base plate is positioned at described guide groove side and is additionally provided with counter-force seat；
One extensible member, it push rod including being movably installed in described counter-force seat, described pars contractilis
Part also includes the support member that a Slide Group is located on described guide groove, and described support member and described top
Bar be connected, described push rod drive described support member near and away from described pile tube channel center
Side moves upward.
On the basis of technique scheme, described support member is near one end of described pile tube passage
It is provided with a roller.
On the basis of technique scheme, described floating locating platform is square, and institute
State floating locating platform to be made up of 4 frames the most end to end.
On the basis of technique scheme, the head and the tail of described frame are respectively arranged at two ends with famale connector
And male contact, famale connector and male contact on adjacent two frames are connected by bearing pin.
On the basis of technique scheme, it is also associated with solid between the inner side of described adjacent two frames
Fixed pole, described fixing bar includes 2 strut connectors and a strut, and described 2 struts are even
Fitting lays respectively at the inner side of adjacent two frames, and bearing pin is passed through respectively with 2 in the two ends of described strut
Individual strut connector connects.
On the basis of technique scheme, described platform fixing device includes multiple being positioned at floating
Anchorage outside locating platform, and the outside of described each frame is respectively and fixedly provided with 2 and tightens up connection
Part, each connector that tightens up is all connected with a tightener, and the number of described anchorage is individual with tightener
Number is identical, and one end of described steel wire rope connects tightener, and the other end connects anchorage.
The present invention also provide for a kind of be applicable to pile tube waterborne install floating guide locating device provided
Using method, comprises the following steps:
Step one: the water surface site that mobile floating locating platform to pile tube waterborne is to be positioned, and will
Floating locating platform is fixed；
Step 2: lift by crane pile tube waterborne and pass floating locating platform, and the pile tube waterborne that falls, and
It is positioned at above bedding bottom pile tube waterborne；
Step 3: by the position regulator on floating locating platform frame to pile tube waterborne
Horizontal level is adjusted, and pile tube waterborne is adjusted to predeterminated position；
Step 4: continue the pile tube waterborne that falls, makes the bottom of pile tube waterborne enter bedding.
On the basis of technique scheme, described step one particularly as follows:
The mobile floating locating platform water surface site that extremely pile tube waterborne is to be positioned, and position in floating
The outer periphery of platform casts anchorage, and anchorage connects steel wire rope, and steel wire rope connects tightener,
By tightener tensioning steel wire rope, floating locating platform is fixed.
On the basis of technique scheme, described step 3 is particularly as follows: stretching on corresponding frame
Contracting parts stretch, and support pile tube waterborne and move at horizontal level.
Compared with prior art, it is an advantage of the current invention that:
(1) floating locating platform is made up of multiple frames, and on bubbling through the water column, thus floating
Locating platform when moving, extremely convenient, it is not necessary to large-tonnage crane gear lifts by crane.
(2) connected by bearing pin between adjacent two frames of floating locating platform, and in fixing bar
It is also adopted by bearing pin between parts to be attached, thus behind the location completing pile tube waterborne, dismounting is floating
Seem during formula locating platform extremely convenient.
(3) floating locating platform is frame-type structure, and use 4 orientation is positioned at floating location
Position regulator on platform carries out the adjustment of position to pile tube waterborne, and relative usage plays lifting
Put the position adjusting pile tube waterborne, use multiple position regulator can precisely adjust pipe waterborne
The horizontal level of stake, reduces construction error.
Accompanying drawing explanation
Fig. 1 be the present invention a kind of be applicable to pile tube waterborne install floating guide locating device provided
Structural representation；
Fig. 2 is the front view of position regulator；
Fig. 3 is the side view of position regulator；
Fig. 4 is a kind of to be applicable to the guide locating device provided user of floating that pile tube waterborne is installed
The schematic diagram of method step one；
Fig. 5 is a kind of to be applicable to the guide locating device provided user of floating that pile tube waterborne is installed
The schematic diagram of method step 2；
Fig. 6 is a kind of to be applicable to the guide locating device provided user of floating that pile tube waterborne is installed
The schematic diagram of method step 3；
Fig. 7 is a kind of to be applicable to the guide locating device provided user of floating that pile tube waterborne is installed
The schematic diagram of method step 4.
In figure: 1-floating locating platform, 11-frame, 12-famale connector, 13-male contact, 14-
Bearing pin, 15-strut, 16-strut connector, 17-tightens up connector, 100-pile tube passage, 2-
Position regulator, 20-guidance set, 21-base plate, 22-extensible member, 23-counter-force seat,
24-push rod, 25-support member, 26-roller, 27-guide groove, 3-tightener, 4-steel wire rope, 5-
Anchorage, 6-pile tube waterborne.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Shown in Figure 1, the present invention provides a kind of and is applicable to the floating guiding that pile tube waterborne is installed
Positioner, the guide locating device provided floating locating platform 1 including frame-type of this floating, this floating
Locating platform 1 at least includes three end to end frames 11, usually, floating is positioned
Platform 1 is set as square, i.e. floating locating platform 1 includes the frame that four first places are connected
11, frame 11 uses buoyancy tank to make, and uses buoyancy tank that floating locating platform 1 can be floated on
Operation on the water surface, when facilitating staff that pile tube waterborne is positioned.Floating location is flat
The frame 11 of platform 1 surrounds a pile tube passage 100, when carrying out the guide-localization of pile tube waterborne,
Pile tube waterborne passes from the centre of floating locating platform 1.
The head and the tail of each frame 11 are respectively arranged at two ends with famale connector 12 and male contact 13, adjacent
Famale connector 12 and male contact 13 on two frames 11 are superimposed with each other, and famale connector 12 and sun connect
Being provided with 2 apertures of correspondence on 13 at overlapping, bolt axle 14 in aperture, by pin
Each frame 11 head and the tail are connected by axle 14, form the floating locating platform 1 of frame-type.Adjacent two
Fixing bar it is also associated with so that the structure of whole floating locating platform 1 between the inner side of frame 11
More stable, fixing bar includes 2 strut connectors 16 and 15,2 struts of a strut
Connector 16 lays respectively at the inner side of adjacent two frames 11, and bearing pin is passed through at the two ends of strut 15
14 are connected with 2 strut connectors 16 respectively.Between adjacent two frames 11 by bearing pin 14 even
Connect, and be also adopted by bearing pin 14 between the parts in fixing bar and be attached, complete pile tube waterborne
Location after, seem extremely convenient during dismounting floating locating platform 1.
Floating locating platform 1 be provided around multiple platform fixing device, specifically, platform is solid
Determine device and include multiple anchorage 5 being positioned at outside floating locating platform 1, and floating locating platform
The outside of each frame 11 of 1 is respectively and fixedly provided with 2 and tightens up connector 17, each tightens up connection
Part 17 is all connected with a tightener 3, and the number of anchorage 5 is identical with the number of tightener 3, anchor
The one end being connected a steel wire rope 4, i.e. steel wire rope 4 between heavy stone used as an anchor 5 with tightener 3 connects tightener 3,
The other end connects anchorage 5.By tightener 3 by steel wire rope 4 tensioning, thus fix floating
Locating platform 1, and anchorage 5 is uniformly distributed in the outside of floating locating platform 1, each frame
It is the most symmetrical that 2 all gone up outside 11 tighten up connector 17, at anchorage 5 and steel wire rope 4
Effect under, floating locating platform 1 can preferably stress balance, convenient flat to floating location
Fixing of platform 1.
Shown in Figure 1, each frame of floating locating platform 1 is equipped with position adjustment dress
Putting 2, position regulator 2 includes the guidance set 20 being fixed on frame 11 and for adjusting
The extensible member 22 of whole pile tube horizontal level waterborne.Specifically, see Fig. 2, shown in 3, lead
Include base plate 21 to assembly 20 and be mounted on the guide groove 27 of base plate 21, and base plate 21 is positioned at
Guide groove 27 side is additionally provided with counter-force seat 23；Extensible member 22 includes being movably installed in counter-force seat
The push rod 24 of 23, extensible member 22 also includes the support member that a Slide Group is located on guide groove 27
25, and support member 25 is connected with described push rod 24, push rod 24 drives support member 25 close
Move upward with the side away from pile tube passage 100 center.Support member 25 is near pile tube passage 100
One end be provided with a roller 26, be connected by bearing pin 14 between roller 26 with support member 25, and
Roller 26 can be freely rotatable, movable fixing by nut 23 between push rod 24 and counter-force seat 23,
When carrying out the position adjustment of pile tube waterborne, rotate nut 23, make push rod 24 move, push rod
24 drive support member 25 to move on guide groove 27 so that roller 26 is held in pile tube waterborne,
And the roller 26 of the position regulator 2 on 4 frames 11 is all held in pile tube waterborne,
All around under the active force of four direction, pile tube waterborne is in fixed state, then
Continue to rotate the nut 23 in nut 23, and 4 position regulators 2 and be in cooperation rotation
State, thus drive pile tube horizontal displacement waterborne to predeterminated position.Such as: rotate limit, the left side
Nut 23 on frame 11, makes the roller 26 on the left side march forward, and frame on the right of rotation simultaneously
Nut 23 on 11, makes the roller 26 on the right draw back, and pile tube the most waterborne will be to the right water
Translation is dynamic.Generally, when carrying out location and the inserted to play of pile tube waterborne, can floating in the present invention
What formula was guide locating device provided is provided above an operation platform, in operation platform and the floating of the present invention
Under guide locating device provided common effect, the pile tube waterborne treating inserted to play is positioned to pre-inserted to play position
Put, and the inserted to play angle treating inserted to play pile tube waterborne is fixed, then carry out follow-up pipe waterborne
The inserted to play construction working of stake.
The present invention also provide for a kind of be applicable to pile tube waterborne install floating guide locating device provided
Using method, for using the above-mentioned guide locating device provided guide-localization carrying out pile tube waterborne,
This using method comprises the following steps:
Step one: shown in Figure 4, mobile floating locating platform 1 is undetermined to pile tube 6 waterborne
The water surface site of position, and cast anchorage 5, anchorage 5 in the outer periphery of floating locating platform 1
Connecting and have steel wire rope 4, steel wire rope 4 connects tightener 3, then by tightener 3 tensioning
Steel wire rope 4, fixes floating locating platform 1；
Step 2: shown in Figure 5, lifts by crane pile tube 6 waterborne and passes floating locating platform 1,
And the pile tube 6 waterborne that falls, and it is positioned at above bedding bottom pile tube waterborne 6；
Step 3: shown in Figure 6, the extensible member 22 on corresponding frame 11 stretches, and supports
On water holding, pile tube 6 moves at horizontal level, specifically, rotates nut 23 and drives support member 22
Gathering sill 27 moves, and makes the roller of position regulator 2 on each frame 11
26 are all held in pile tube 6 waterborne, then proceed to rotate the nut on each position regulator 2
It is in mated condition between 23, and each nut 23, drives pile tube 6 waterborne horizontal displacement in advance
If position；
Step 4: shown in Figure 7, continues the pile tube 6 waterborne that falls, makes pile tube 6 waterborne
Bottom enters bedding, completes the installation of pile tube 6 waterborne, then removes floating locating platform 1.
Use the guide locating device provided installation that pile tube 6 waterborne is carried out guide-localization of this floating, because of
This floating is guide locating device provided directly bubble through the water column on, it is not necessary to large-scale lifting appliance lifts by crane this floating
Guide locating device provided so that the guide locating device provided suitability of this floating is relatively strong, and uses 4
The position regulator 2 in orientation carries out the adjustment of position to pile tube 6 waterborne so that pile tube waterborne
The location of 6 is more accurate, reduces construction error.
The present invention is not limited to above-mentioned embodiment, for those skilled in the art
For, under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications,
Within these improvements and modifications are also considered as protection scope of the present invention.This specification is not made in detail
The content described belongs to prior art known to professional and technical personnel in the field.
Claims (10)
1. the floating being applicable to pile tube waterborne installation is guide locating device provided, it is characterised in that
Including: the floating locating platform (1) of frame-type, it includes the end to end frame of at least three
(11), described frame (11) surrounds a pile tube passage (100), and floating locating platform (1)
Be provided around multiple platform fixing device；Described frame (11) is provided with position regulator
(2), described position regulator (2) is provided with the pars contractilis adjusting pile tube horizontal level waterborne
Part (22).
It is fixed that a kind of floating being applicable to pile tube waterborne installation guides
Position device, it is characterised in that described position regulator (2) including:
One guidance set (20) being fixed on described frame (11), described guidance set (20)
Including base plate (21) and the guide groove (27) that is mounted on base plate (21), and described base plate (21)
It is positioned at described guide groove (27) side and is additionally provided with counter-force seat (23)；
One extensible member (22), it push rod including being movably installed in described counter-force seat (23)
(24), described extensible member (22) also includes that a Slide Group is located on described guide groove (27)
Support member (25), and described support member (25) is connected with described push rod (24), described
Push rod (24) drive described support member (25) near and away from described pile tube passage (100)
The side at center moves upward.
It is fixed that a kind of floating being applicable to pile tube waterborne installation guides
Position device, it is characterised in that: described support member (25) is near described pile tube passage (100)
One end be provided with a roller (26).
It is fixed that a kind of floating being applicable to pile tube waterborne installation guides
Position device, it is characterised in that: described floating locating platform (1) is square, and described
Floating locating platform (1) is made up of 4 the most end to end frames (11).
It is fixed that a kind of floating being applicable to pile tube waterborne installation guides
Position device, it is characterised in that: the head and the tail of described frame (11) are respectively arranged at two ends with famale connector (12)
With male contact (13), the famale connector (12) on adjacent two frames (11) and male contact (13)
Connected by bearing pin (14).
It is fixed that a kind of floating being applicable to pile tube waterborne installation guides
Position device, it is characterised in that: it is also associated with fixing between the inner side of described adjacent two frames (11)
Bar, described fixing bar includes 2 strut connectors (16) and a strut (15), described
2 strut connectors (16) lay respectively at the inner side of adjacent two frames (11), described strut
(15) two ends are connected with 2 strut connectors (16) respectively by bearing pin (14).
It is fixed that a kind of floating being applicable to pile tube waterborne installation guides
Position device, it is characterised in that: described platform fixing device includes multiple being positioned at floating locating platform
(1) anchorage (5) in outside, and the outside of described each frame (11) is respectively and fixedly provided with 2
Tightening up connector (17), each connector (17) that tightens up is all connected with a tightener (3), institute
The number stating anchorage (5) is identical with the number of tightener (3), described steel wire rope (4)
One end connects tightener (3), and the other end connects anchorage (5).
8. one kind as described in any one of claim 1 to 7 be applicable to pile tube waterborne install
The using method that floating is guide locating device provided, it is characterised in that comprise the following steps:
Step one: the water surface that mobile floating locating platform (1) to pile tube waterborne (6) is to be positioned
Position, and floating locating platform (1) is fixed；
Step 2: lift by crane pile tube waterborne (6) through floating locating platform (1), and under overboard
It is positioned at above bedding bottom upper pile tube (6), and pile tube waterborne (6)；
Step 3: by the position regulator on floating locating platform (1) frame (11)
(2) horizontal level of pile tube waterborne (6) is adjusted, pile tube waterborne (6) is adjusted
To predeterminated position；
Step 4: continue the pile tube waterborne (6) that falls, make the bottom of pile tube waterborne (6) enter
Bedding.
It is fixed that a kind of floating being applicable to pile tube waterborne installation guides
Position device using method, it is characterised in that described step one particularly as follows:
Mobile floating locating platform (1) water surface site that extremely pile tube waterborne (6) is to be positioned, and
Outer periphery at floating locating platform (1) casts anchorage (5), and anchorage (5) connects steel
Cord (4), steel wire rope (4) connects has tightener (3), by tightener (3) tensioning steel
Cord (4), fixes floating locating platform (1).
It is fixed that a kind of floating being applicable to pile tube waterborne installation guides
The using method of position device, it is characterised in that described step 3 is particularly as follows: corresponding frame (11)
On extensible member (22) stretch, support pile tube waterborne (6) and move at horizontal level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610382161.0A CN105951837A (en) | 2016-05-31 | 2016-05-31 | Floating guide positioning device suitable for mounting water pipe pile and application method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610382161.0A CN105951837A (en) | 2016-05-31 | 2016-05-31 | Floating guide positioning device suitable for mounting water pipe pile and application method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105951837A true CN105951837A (en) | 2016-09-21 |
Family
ID=56908576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610382161.0A Pending CN105951837A (en) | 2016-05-31 | 2016-05-31 | Floating guide positioning device suitable for mounting water pipe pile and application method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105951837A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107651113A (en) * | 2017-09-30 | 2018-02-02 | 长江勘测规划设计研究有限责任公司 | Adapt to big luffing, the water surface photovoltaic anchor system in high flow rate waters and design and construction method |
| CN109572950A (en) * | 2019-01-16 | 2019-04-05 | 华电郑州机械设计研究院有限公司 | A kind of protective device of the automatic adaptation water level for water surface photovoltaic power station |
| CN109778839A (en) * | 2019-03-18 | 2019-05-21 | 中铁四局集团有限公司 | Construction system and construction method for steel pipe pile with deep-water compact pebble covering layer |
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| DE3743431A1 (en) * | 1986-12-22 | 1988-06-30 | Petroleo Brasileiro Sa | FLOATING OFFSHORE |
| JP2003119783A (en) * | 2001-10-18 | 2003-04-23 | Daiei Kensetsu Kk | Pile keeper device in pile driving working craft |
| WO2003087569A1 (en) * | 2002-04-04 | 2003-10-23 | Lunatech, Llc | Barge-mounted tidal-powered desalinization system |
| KR100804054B1 (en) * | 2006-09-18 | 2008-02-18 | 신호근 | Apparatus supporting for a pile in the float assembly |
| CN102312442A (en) * | 2011-07-01 | 2012-01-11 | 中铁大桥局股份有限公司 | Construction method of trestle steel pipe pile foundation |
| CN103953043A (en) * | 2014-05-05 | 2014-07-30 | 广东明阳风电产业集团有限公司 | Floating box type locating tool for piling offshore wind power foundation |
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2016
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3743431A1 (en) * | 1986-12-22 | 1988-06-30 | Petroleo Brasileiro Sa | FLOATING OFFSHORE |
| JP2003119783A (en) * | 2001-10-18 | 2003-04-23 | Daiei Kensetsu Kk | Pile keeper device in pile driving working craft |
| WO2003087569A1 (en) * | 2002-04-04 | 2003-10-23 | Lunatech, Llc | Barge-mounted tidal-powered desalinization system |
| KR100804054B1 (en) * | 2006-09-18 | 2008-02-18 | 신호근 | Apparatus supporting for a pile in the float assembly |
| CN102312442A (en) * | 2011-07-01 | 2012-01-11 | 中铁大桥局股份有限公司 | Construction method of trestle steel pipe pile foundation |
| CN103953043A (en) * | 2014-05-05 | 2014-07-30 | 广东明阳风电产业集团有限公司 | Floating box type locating tool for piling offshore wind power foundation |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107651113A (en) * | 2017-09-30 | 2018-02-02 | 长江勘测规划设计研究有限责任公司 | Adapt to big luffing, the water surface photovoltaic anchor system in high flow rate waters and design and construction method |
| CN107651113B (en) * | 2017-09-30 | 2023-04-25 | 长江勘测规划设计研究有限责任公司 | Water surface photovoltaic anchoring system suitable for large-amplitude high-flow-speed water area and design and construction method |
| CN109572950A (en) * | 2019-01-16 | 2019-04-05 | 华电郑州机械设计研究院有限公司 | A kind of protective device of the automatic adaptation water level for water surface photovoltaic power station |
| CN109778839A (en) * | 2019-03-18 | 2019-05-21 | 中铁四局集团有限公司 | Construction system and construction method for steel pipe pile with deep-water compact pebble covering layer |
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Application publication date: 20160921 |