CN105970900A - Offshore wind turbine gravity type foundation installation seabed treatment process - Google Patents
Offshore wind turbine gravity type foundation installation seabed treatment process Download PDFInfo
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- CN105970900A CN105970900A CN201610446628.3A CN201610446628A CN105970900A CN 105970900 A CN105970900 A CN 105970900A CN 201610446628 A CN201610446628 A CN 201610446628A CN 105970900 A CN105970900 A CN 105970900A
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- rail
- foundation
- bedding
- compacting
- leveling
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/42—Foundations for poles, masts or chimneys
- E02D27/425—Foundations for poles, masts or chimneys specially adapted for wind motors masts
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/30—Wind power
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Agronomy & Crop Science (AREA)
- Environmental & Geological Engineering (AREA)
- Soil Sciences (AREA)
- Foundations (AREA)
Abstract
The invention discloses an offshore wind turbine gravity type foundation installation seabed treatment process. The offshore wind turbine gravity type foundation installation seabed treatment process is characterized in that the process includes the following steps of foundation trench excavation, foundation trench riprapping, foundation bed tamping and foundation bed leveling. According to the offshore wind turbine gravity type foundation installation seabed treatment process, an existing domestic construction device is utilized, the domestic port engineering construction technology is used for reference, the gravity type seabed treatment process is designed in combination with characteristics of an offshore wind turbine gravity type foundation, the problem of treatment of a large gravity type offshore wind turbine foundation seabed is effectively solved, powerful support is provided for introducing the gravity type draught fan foundation technology in the offshore wind power industry, and engineering cost is reduced.
Description
Technical field
The present invention relates to offshore wind farm blower foundation technical field of construction, particularly relate to a kind of offshore wind turbine weight
Power formula basis is installed sea bed and is processed technique.
Background technology
What the fixed basis of offshore wind farm unit was the most frequently used has 3 kinds, single pile formula, gravity type, multi-angular bracket
Formula.Gravity type foundation offshore construction operation is less, preferable at seabed conditions, the offshore wind farm that the depth of water is shallower
Field possesses the possibility commonly used.The general height overall of gravity type foundation about 25 meters, bottom is by about 25 meters
The steel bar concrete foundation slab of diameter forms with armored concrete outer cylinder body, and top is diameter about 6 meters
Prestressed reinforced concrete column.Gravity type foundation can complete by one-piece casting the most on the bank, and weight exists
2000～3000 tons, the rear dragging that completes is transported to marine wind electric field, and sinking is located on the sea bed after leveling.
Weight and basis that gravity type foundation body is huge are directly delivered to sea by blower fan, wave with the load of ocean current
Bed surface, has high requirements with bearing capacity to sea bed surface smoothness, so needing before gravity type foundation is in place
Carry out sea bed processing and ensure its engineering property.The most domestic precedent that there is no the construction of gravity type blower foundation.
Solve above-mentioned accordingly, it is desirable to provide a kind of offshore wind turbine gravity type foundation installs sea bed process technique
Problem.
Summary of the invention
In order to solve this problem, the invention discloses a kind of offshore wind turbine gravity type foundation and sea bed process is installed
Technique, it solves the difficult problem that sea bed processes, introduces gravity type offshore wind turbine foundation technology for sea turn electric industry
Provide and provide powerful support for.A kind of offshore wind turbine gravity type foundation is installed sea bed and is processed technique, it is characterised in that:
Described technique comprises the following steps: foundation trench excavation-foundation trench jackstone-bedding compacting-base bed flattening；
1) foundation trench excavation
Foundation trench excavation selects backacter or grab boat to carry out foundation trench dredging, cuts out sea bed surface
Soft layer until exposing the hard soil layer in bottom meeting foundation bearing capacity and stability requirement, thickness of dredging
Spending different because of the difference of engineering geological condition, generally 0.5-10 rice, when excavating thickness more than 3m
Taking stage excavation, the foundation trench thick less than 3m once excavates；
Foundation trench excavation notices on the premise of thickness of subgrade bed and width meet requirement whether excavation slope meets and sets
Meter requirement, excavation slope is surely as the criterion with depositional gradient, and water under diver should be sent in foundation trench digging process to have checked
Digging part to back-silt situation, according to back-silting, situation formulates corresponding dredging measure, timely jackstone after excavation in case
Foundation ditch back silting；
2) foundation trench jackstone
Jackstone uses 600t side to refute location, and side is refuted across bedding demarcating position, and flat board is refuted shipment block stone and (joined
Grab bucket loop wheel machine) refute throwing by location side, the grab bucket that flat board is refuted captures building stones, and by float drum funnel
Connecting chute or elephant trunk and carry building stones to excavation sea bed successively with s shape order, bedding jackstone staged and layered is entered
OK, every layer thickness≤2.0m, every layer of jackstone thickness should have more 10%-20% as reserved than design thickness
Ramming volume；
3) bedding compacting
The method of bedding compacting mainly has heavy tamping method and underwater demolition compacting method two kinds: tamping is used
Crane gear is sling weight, requires in order to carry out compacting construction；Underwater demolition compacting method utilizes explosion to rush
Hit power and shaking force is tamped；
Majority of case uses heavy tamping method to carry out bedding compacting, before rammer, in order to promote compacting effect,
Arrange the thick flat bedding of diver；For irregular region, local, employing side refutes loop wheel machine, carry out pinpointing,
Quantitatively cover, it is ensured that locally the discrepancy in elevation is not more than 300mm；
Hammer ram selects plane bottom hammer, hammer weight 8t or 12t, controls to fall away from, it is ensured that the impact energy often hammered into shape, presses
Order point vertical, horizontal compacting, for preventing bedding local eminence or leakage from ramming, each tamping area should be with adjacent
Partly overlap 1/3-1/4；Divide twice compacting (just ram and ram with multiple) in principle, specifically ram pass and impact
Energy should be determined by examination rammer, and bedding staged and layered is tamped, and every layer thickness should be roughly equal, and compacted thickness is not
More than 2m, the lap of splice of segmentation compacting is not less than 2m, if heavy tamping energy is bigger, lift height can be fitted
Work as increasing；
4) base bed flattening
Base bed flattening uses " Dow process scraped by guide rail ", and construction procedure is workboat location, measures and controls plane position
Put and absolute altitude, lower railway of diving under water, scrape leveling, rubble filling-in；
The jack-up unit that leveling workboat outfit band 500t level sea work is hung, as construction ship, is equipped with simultaneously
The underwater ship of underwater performance, measures according to design leveling width, discharges front rail, middle rail and rear rail and measure control
Processed, control its plan-position；
Each time one of scope sideline of toe leveling rail before and after leveling basis, forward position, rail passes through drag-line and top
Crossbeam and jack up drilling platform on extra large work hang connection, during lower rail, jack-up unit bedding side position,
Precalculated position, sea bed face transferred to by loop wheel machine lifting rail, controls rail direction with total powerstation, simultaneously according to drawing
Plumb bob to upper end, sea bed face adjusts lowered position；It is high that diver controls rail by concrete pad under water
Journey, after rail two ends sinking to concrete pad, diver then with in the middle part of block stone pad rail, go along with sb. to guard him
Around rail, being sequentially completed all of rail and lay work, rail top is leveling absolute altitude；
Rail has positioned rear diver and has operated under water and leveling scrapes location and installation on rail, along leading
Rail direction promotes and scrapes, and to scrape bottom surface for leveling absolute altitude, goes high to mend low, flattens bedding.At the bottom of floating rule
It is as the criterion and flattens, taken out of outside bedding higher than the block stone at the bottom of floating rule by diver, less than between the stone at the bottom of floating rule
Out-of-flatness part is filled with two slabstones, and the rubble of the space between two slabstones is filled, with two slabstones at the bottom of floating rule
Space rubble is clogged.
The invention have the benefit that
The present invention utilizes domestic existing construction equipment, uses for reference domestic harbor work's construction technology, in conjunction with offshore wind turbine
Gravity type foundation feature, devises gravity type sea bed and processes technique, effectively solves large-scale gravity type sea
The difficult problem that fan basis sea bed processes, introduces gravity type blower foundation technology for sea turn electric industry and provides
Provide powerful support for, reduce construction costs.
Introducing the concept of a series of reduced form in Summary, this will be in detailed description of the invention
Part further describes.Present invention part is not meant to attempt to limit required guarantor
The key feature of the technical scheme protected and essential features, more do not mean that attempt to determine claimed
The protection domain of technical scheme.
In conjunction with advantages and features of the invention described further below.
Accompanying drawing explanation
Fig. 1 is that foundation trench of the present invention excavates floor map schematic diagram；
Fig. 2 is foundation trench jackstone floor map of the present invention；
Fig. 3 is foundation trench jackstone elevational schematic view of the present invention；
Fig. 4 is that foundation trench of the present invention tamps floor map；
Fig. 5 is that foundation trench of the present invention flattens elevational schematic view；
Detailed description of the invention
In the following description, a large amount of concrete details is given to provide to the present invention the most thoroughly
Understand.It will be apparent, however, to one skilled in the art that the present invention can be without one
Or multiple these details and be carried out.In other example, in order to avoid obscuring with the present invention,
Technical characteristics more well known in the art are not described.
In order to thoroughly understand the present invention, detailed technique will be proposed in following description.Obviously, this
Bright execution is not limited to the specific details that those skilled in the art is familiar with.The present invention's is preferable real
Execute example to be described in detail as follows, but in addition to these describe in detail, the present invention can also have other and implement
Mode.
Hereinafter embodiments of the invention are described in detail.
With reference to Fig. 1-Fig. 5, a kind of offshore wind turbine gravity type foundation is installed sea bed and is processed technique, and its feature exists
In: described technique comprises the following steps: foundation trench excavation-foundation trench jackstone-bedding compacting-base bed flattening；
1) foundation trench excavation
Foundation trench excavation selects backacter or grab boat to carry out foundation trench dredging, cuts out sea bed surface
Soft layer until exposing the hard soil layer in bottom meeting foundation bearing capacity and stability requirement, thickness of dredging
Spending different because of the difference of engineering geological condition, generally 0.5-10 rice, when excavating thickness more than 3m
Taking stage excavation, the foundation trench thick less than 3m once excavates；
Foundation trench excavation notices on the premise of thickness of subgrade bed and width meet requirement whether excavation slope meets and sets
Meter requirement, excavation slope is surely as the criterion with depositional gradient, and water under diver should be sent in foundation trench digging process to have checked
Digging part to back-silt situation, according to back-silting, situation formulates corresponding dredging measure, timely jackstone after excavation in case
Foundation ditch back silting；
2) foundation trench jackstone
Jackstone uses 600t side to refute location, and side is refuted across bedding demarcating position, and flat board is refuted shipment block stone and (joined
Grab bucket loop wheel machine) refute throwing by location side, the grab bucket that flat board is refuted captures building stones, and by float drum funnel
Connecting chute or elephant trunk and carry building stones to excavation sea bed successively with s shape order, bedding jackstone staged and layered is entered
OK, every layer thickness≤2.0m, every layer of jackstone thickness should have more 10%-20% as reserved than design thickness
Ramming volume；
3) bedding compacting
The method of bedding compacting mainly has heavy tamping method and underwater demolition compacting method two kinds: tamping is used
Crane gear is sling weight, requires in order to carry out compacting construction；Underwater demolition compacting method utilizes explosion to rush
Hit power and shaking force is tamped；
Majority of case uses heavy tamping method to carry out bedding compacting, before rammer, in order to promote compacting effect,
Arrange the thick flat bedding of diver；For irregular region, local, employing side refutes loop wheel machine, carry out pinpointing,
Quantitatively cover, it is ensured that locally the discrepancy in elevation is not more than 300mm；
Hammer ram selects plane bottom hammer, hammer weight 8t or 12t, controls to fall away from, it is ensured that the impact energy often hammered into shape, presses
Order point vertical, horizontal compacting, for preventing bedding local eminence or leakage from ramming, each tamping area should be with adjacent
Partly overlap 1/3-1/4；Divide twice compacting (just ram and ram with multiple) in principle, specifically ram pass and impact
Energy should be determined by examination rammer, and bedding staged and layered is tamped, and every layer thickness should be roughly equal, and compacted thickness is not
More than 2m, the lap of splice of segmentation compacting is not less than 2m, if heavy tamping energy is bigger, lift height can be fitted
Work as increasing；
4) base bed flattening
Base bed flattening uses " Dow process scraped by guide rail ", and construction procedure is workboat location, measures and controls plane position
Put and absolute altitude, lower railway of diving under water, scrape leveling, rubble filling-in；
The jack-up unit that leveling workboat outfit band 500t level sea work is hung, as construction ship, is equipped with simultaneously
The underwater ship of underwater performance, measures according to design leveling width, discharges front rail, middle rail and rear rail and measure control
Processed, control its plan-position；
Each time one of scope sideline of toe leveling rail before and after leveling basis, forward position, rail passes through drag-line and top
Crossbeam and jack up drilling platform on extra large work hang connection, during lower rail, jack-up unit bedding side position,
Precalculated position, sea bed face transferred to by loop wheel machine lifting rail, controls rail direction with total powerstation, simultaneously according to drawing
Plumb bob to upper end, sea bed face adjusts lowered position；It is high that diver controls rail by concrete pad under water
Journey, after rail two ends sinking to concrete pad, diver then with in the middle part of block stone pad rail, go along with sb. to guard him
Around rail, being sequentially completed all of rail and lay work, rail top is leveling absolute altitude；
Rail has positioned rear diver and has operated under water and leveling scrapes location and installation on rail, along leading
Rail direction promotes and scrapes, and to scrape bottom surface for leveling absolute altitude, goes high to mend low, flattens bedding.At the bottom of floating rule
It is as the criterion and flattens, taken out of outside bedding higher than the block stone at the bottom of floating rule by diver, less than between the stone at the bottom of floating rule
Out-of-flatness part is filled with two slabstones, and the rubble of the space between two slabstones is filled, with two slabstones at the bottom of floating rule
Space rubble is clogged.
Having the beneficial effect that of the present embodiment
The present invention it utilize domestic existing construction equipment, use for reference domestic harbor work's construction technology, in conjunction with marine
Blower fan gravity type foundation feature, devises gravity type sea bed and processes technique, effectively solve large-scale gravity
The difficult problem that formula offshore wind turbine foundation sea bed processes, introduces gravity type blower foundation technology for sea turn electric industry and carries
Supply to provide powerful support for, reduced construction costs.
The present invention is illustrated by above-described embodiment, but it is to be understood that, above-described embodiment
It is only intended to citing and descriptive purpose, and is not intended to limit the invention to described scope of embodiments
In.In addition it will be appreciated by persons skilled in the art that and the invention is not limited in above-described embodiment, root
Can also make more kinds of variants and modifications according to the teachings of the present invention, these variants and modifications all fall within this
Within inventing scope required for protection.Protection scope of the present invention by the appended claims and etc.
Effect scope is defined.
Claims (1)
1. an offshore wind turbine gravity type foundation is installed sea bed and is processed technique, it is characterised in that: described technique
Comprise the following steps: foundation trench excavation-foundation trench jackstone-bedding compacting-base bed flattening；
1) foundation trench excavation
Foundation trench excavation selects backacter or grab boat to carry out foundation trench dredging, cuts out sea bed surface
Soft layer until exposing the hard soil layer in bottom meeting foundation bearing capacity and stability requirement, thickness of dredging
Spending different because of the difference of engineering geological condition, generally 0.5-10 rice, when excavating thickness more than 3m
Taking stage excavation, the foundation trench thick less than 3m once excavates；
Foundation trench excavation notices on the premise of thickness of subgrade bed and width meet requirement whether excavation slope meets and sets
Meter requirement, excavation slope is surely as the criterion with depositional gradient, and water under diver should be sent in foundation trench digging process to have checked
Digging part to back-silt situation, according to back-silting, situation formulates corresponding dredging measure, timely jackstone after excavation in case
Foundation ditch back silting；
2) foundation trench jackstone
Jackstone uses 600t side to refute location, and side is refuted across bedding demarcating position, and flat board is refuted shipment block stone and (joined
Grab bucket loop wheel machine) refute throwing by location side, the grab bucket that flat board is refuted captures building stones, and by float drum funnel
Connecting chute or elephant trunk and carry building stones to excavation sea bed successively with s shape order, bedding jackstone staged and layered is entered
OK, every layer thickness≤2.0m, every layer of jackstone thickness should have more 10%-20% as reserved than design thickness
Ramming volume；
3) bedding compacting
The method of bedding compacting mainly has heavy tamping method and underwater demolition compacting method two kinds: tamping is used
Crane gear is sling weight, requires in order to carry out compacting construction；Underwater demolition compacting method utilizes explosion to rush
Hit power and shaking force is tamped；
Majority of case uses heavy tamping method to carry out bedding compacting, before rammer, in order to promote compacting effect,
Arrange the thick flat bedding of diver；For irregular region, local, employing side refutes loop wheel machine, carry out pinpointing,
Quantitatively cover, it is ensured that locally the discrepancy in elevation is not more than 300mm；
Hammer ram selects plane bottom hammer, hammer weight 8t or 12t, controls to fall away from, it is ensured that the impact energy often hammered into shape, presses
Order point vertical, horizontal compacting, for preventing bedding local eminence or leakage from ramming, each tamping area should be with adjacent
Partly overlap 1/3-1/4；Divide twice compacting (just ram and ram with multiple) in principle, specifically ram pass and impact
Energy should be determined by examination rammer, and bedding staged and layered is tamped, and every layer thickness should be roughly equal, and compacted thickness is not
More than 2m, the lap of splice of segmentation compacting is not less than 2m, if heavy tamping energy is bigger, lift height can be fitted
Work as increasing；
4) base bed flattening
Base bed flattening uses " Dow process scraped by guide rail ", and construction procedure is workboat location, measures and controls plane position
Put and absolute altitude, lower railway of diving under water, scrape leveling, rubble filling-in；
The jack-up unit that leveling workboat outfit band 500t level sea work is hung, as construction ship, is equipped with simultaneously
The underwater ship of underwater performance, measures according to design leveling width, discharges front rail, middle rail and rear rail and measure control
Processed, control its plan-position；
Each time one of scope sideline of toe leveling rail before and after leveling basis, forward position, rail passes through drag-line and top
Crossbeam and jack up drilling platform on extra large work hang connection, during lower rail, jack-up unit bedding side position,
Precalculated position, sea bed face transferred to by loop wheel machine lifting rail, controls rail direction with total powerstation, simultaneously according to drawing
Plumb bob to upper end, sea bed face adjusts lowered position；It is high that diver controls rail by concrete pad under water
Journey, after rail two ends sinking to concrete pad, diver then with in the middle part of block stone pad rail, go along with sb. to guard him
Around rail, being sequentially completed all of rail and lay work, rail top is leveling absolute altitude；
Rail has positioned rear diver and has operated under water and leveling scrapes location and installation on rail, along leading
Rail direction promotes and scrapes, and to scrape bottom surface for leveling absolute altitude, goes high to mend low, flattens bedding.At the bottom of floating rule
It is as the criterion and flattens, taken out of outside bedding higher than the block stone at the bottom of floating rule by diver, less than between the stone at the bottom of floating rule
Out-of-flatness part is filled with two slabstones, and the rubble of the space between two slabstones is filled, with two slabstones at the bottom of floating rule
Space rubble is clogged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610446628.3A CN105970900A (en) | 2016-06-16 | 2016-06-16 | Offshore wind turbine gravity type foundation installation seabed treatment process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610446628.3A CN105970900A (en) | 2016-06-16 | 2016-06-16 | Offshore wind turbine gravity type foundation installation seabed treatment process |
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| CN201610446628.3A Withdrawn CN105970900A (en) | 2016-06-16 | 2016-06-16 | Offshore wind turbine gravity type foundation installation seabed treatment process |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107989061A (en) * | 2018-01-12 | 2018-05-04 | 中交第三航务工程勘察设计院有限公司 | A kind of floating LNG liquefaction plants sit bottom foundation structure and its method of construction |
| CN108313219A (en) * | 2018-04-02 | 2018-07-24 | 长江南京航道工程局 | Stone dumper, jackstone system waterborne and jackstone method waterborne waterborne |
| CN108330977A (en) * | 2017-12-28 | 2018-07-27 | 中交烟台环保疏浚有限公司 | SA sand bedding course throwing constructions |
| CN108360499A (en) * | 2018-02-11 | 2018-08-03 | 北京中科力***技术工程有限公司 | A kind of closely knit processing method of runway basis large area explosion |
| CN109680647A (en) * | 2018-12-21 | 2019-04-26 | 大连交通大学 | A kind of Construction at ports technique convenient for later maintenance |
| CN109898557A (en) * | 2019-01-21 | 2019-06-18 | 中交第二航务工程局有限公司 | Underwater rubble bedding laying method |
| CN111456017A (en) * | 2020-04-13 | 2020-07-28 | 河海大学 | Construction device for underwater riprap foundation bed |
| CN113882421A (en) * | 2021-09-24 | 2022-01-04 | 中交一航局第三工程有限公司 | Offshore wind power generation gravity type foundation and installation method |
| CN116084381A (en) * | 2023-03-07 | 2023-05-09 | 中交第一航务工程局有限公司 | Method for feeding, tamping and leveling after underwater block stone foundation bed is blasted |
| CN116202728A (en) * | 2023-01-18 | 2023-06-02 | 天津大学 | Submarine cross pipe cable local three-dimensional scouring experiment simulation device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108330977A (en) * | 2017-12-28 | 2018-07-27 | 中交烟台环保疏浚有限公司 | SA sand bedding course throwing constructions |
| CN107989061B (en) * | 2018-01-12 | 2023-08-11 | 中交第三航务工程勘察设计院有限公司 | Construction method of floating LNG liquefaction plant foundation structure |
| CN107989061A (en) * | 2018-01-12 | 2018-05-04 | 中交第三航务工程勘察设计院有限公司 | A kind of floating LNG liquefaction plants sit bottom foundation structure and its method of construction |
| CN108360499A (en) * | 2018-02-11 | 2018-08-03 | 北京中科力***技术工程有限公司 | A kind of closely knit processing method of runway basis large area explosion |
| CN108313219A (en) * | 2018-04-02 | 2018-07-24 | 长江南京航道工程局 | Stone dumper, jackstone system waterborne and jackstone method waterborne waterborne |
| CN109680647A (en) * | 2018-12-21 | 2019-04-26 | 大连交通大学 | A kind of Construction at ports technique convenient for later maintenance |
| CN109898557A (en) * | 2019-01-21 | 2019-06-18 | 中交第二航务工程局有限公司 | Underwater rubble bedding laying method |
| CN109898557B (en) * | 2019-01-21 | 2024-02-20 | 中交第二航务工程局有限公司 | Laying method of underwater broken stone foundation bed |
| CN111456017A (en) * | 2020-04-13 | 2020-07-28 | 河海大学 | Construction device for underwater riprap foundation bed |
| CN111456017B (en) * | 2020-04-13 | 2021-04-16 | 河海大学 | Construction device for underwater riprap foundation bed |
| CN113882421A (en) * | 2021-09-24 | 2022-01-04 | 中交一航局第三工程有限公司 | Offshore wind power generation gravity type foundation and installation method |
| CN116202728A (en) * | 2023-01-18 | 2023-06-02 | 天津大学 | Submarine cross pipe cable local three-dimensional scouring experiment simulation device |
| CN116202728B (en) * | 2023-01-18 | 2023-08-25 | 天津大学 | Submarine cross pipe cable local three-dimensional scouring experiment simulation device |
| CN116084381A (en) * | 2023-03-07 | 2023-05-09 | 中交第一航务工程局有限公司 | Method for feeding, tamping and leveling after underwater block stone foundation bed is blasted |
| CN116084381B (en) * | 2023-03-07 | 2023-06-20 | 中交第一航务工程局有限公司 | Method for feeding, tamping and leveling after underwater block stone foundation bed is blasted |
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Application publication date: 20160928 |