CN110439020A - Marine single-pile foundation with sand pile reinforcing ground - Google Patents
Marine single-pile foundation with sand pile reinforcing ground Download PDFInfo
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- CN110439020A CN110439020A CN201910776949.3A CN201910776949A CN110439020A CN 110439020 A CN110439020 A CN 110439020A CN 201910776949 A CN201910776949 A CN 201910776949A CN 110439020 A CN110439020 A CN 110439020A
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- consolidated subsoil
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- 239000004576 sand Substances 0.000 title claims abstract description 72
- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 19
- 239000002689 soil Substances 0.000 claims abstract description 52
- 238000005056 compaction Methods 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 10
- 238000009991 scouring Methods 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 238000006073 displacement reaction Methods 0.000 abstract description 8
- 238000010276 construction Methods 0.000 description 12
- 230000008901 benefit Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 241000239290 Araneae Species 0.000 description 3
- 230000003628 erosive effect Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000009432 framing Methods 0.000 description 1
- 239000004746 geotextile Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
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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
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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
- E02D27/52—Submerged foundations, i.e. submerged in open water
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- 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
- E02D3/02—Improving by compacting
- E02D3/08—Improving by compacting by inserting stones or lost bodies, e.g. compaction piles
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- 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
- E02D3/02—Improving by compacting
- E02D3/10—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains
- E02D3/106—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains by forming sand drains containing only loose aggregates
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/24—Prefabricated piles
- E02D5/28—Prefabricated piles made of steel or other metals
- E02D5/285—Prefabricated piles made of steel or other metals tubular, e.g. prefabricated from sheet pile elements
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Mining & Mineral Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Environmental & Geological Engineering (AREA)
- Soil Sciences (AREA)
- Piles And Underground Anchors (AREA)
- Foundations (AREA)
Abstract
The present invention relates to a kind of marine single-pile foundations with sand pile reinforcing ground in the pile foundation field of ocean engineering, technical solution is that steel-pipe pile is sunk to sea bed, sea bed is soft soil foundation, the consolidated subsoil of sand pile technique is used in the regional area of soft soil foundation, steel-pipe pile is inserted through consolidated subsoil and sinks to soft soil foundation, and consolidated subsoil includes the weak soil between sand pile and sand pile;Sand pile uniform intervals arrangement;The center longitudinal axis of consolidated subsoil and the center longitudinal axis of steel-pipe pile are consistent.Sand pile includes sand compaction pile.Its horizontal bearing capacity is high, Horizontal Displacement is small, pile body inclination angle is small, soil rigidity is big, adapt to the big feature of offshore wind turbine horizontal loading, meet strict demand of the offshore wind turbine to horizontal displacement of foundation and pile body inclination angle, meets the requirement of " structure+basis " the whole natural frequency of vibration.
Description
Technical field
The present invention relates to the horizontal bearing performance in the pile foundation field of ocean engineering more particularly to a kind of soft soil foundation is high
Marine single-pile foundation.
Background technique
Oversea wind power generation is the emphasis of new energy field development, and market prospects are boundless.Blower unit is for basis
Horizontal displacement and differential settlement there is strict control standard, the natural frequency of vibration of " structure+basis " needs to avoid external loads
Driving frequency.Currently, the common basal pattern of offshore wind turbine have single pile, high-rise pile cap, spider, jacket,
Gravity type, negative pressure barrel type and floating platform structure etc..At sea in Wind Power Project, single-pile foundation is widely adopted, because it has
The advantages that taking up an area smaller, simple structure, quick construction, lower cost;But then, single-pile foundation is relative to other basic types
Formula disadvantage is that smaller for rigidity, structure is more soft.China coastal seas sea area sea bed surface layer is mostly deep weak soil, in certain journey
The application on the type basis is constrained on degree.Under complicated marine environment, wave, ocean current etc. can apply huge water to blower foundation
Flat load;As blower single-machine capacity is increasing, hub height is higher and higher, and blade is increasingly longer, and fan loads are increasingly
Greatly.Although steel-pipe pile itself bending stiffness is larger, the horizontal restraint that the soil body on stake week ground surface layer is capable of providing is limited.If
Using conventional single-pile foundation, increase that stake diameter, stake be long or the method for wall thickness will lead to the more materials of consumption, the increase of single pile weight
Also higher difficulty of construction is brought, so that foundation cost increases sharply, influences the power benefit of wind power plant.Therefore research and development weak soil
The high marine single-pile foundation of horizontal bearing performance in ground has actual engineering significance.
Summary of the invention
In view of the difficult point that single-pile foundation is applied in soft soil foundation sea area, the object of the present invention is to provide one kind to have sand
The marine single-pile foundation of stake consolidated subsoil, horizontal bearing capacity is high, Horizontal Displacement is small, pile body inclination angle is small, soil rigidity is big,
The big feature of offshore wind turbine horizontal loading is adapted to, strict demand of the offshore wind turbine to horizontal displacement of foundation and pile body inclination angle is met,
Meet the requirement of " structure+basis " the whole natural frequency of vibration.
The technical solution of the present invention is as follows: a kind of high-level bearing capacity single-pile foundation in sea with sand pile reinforcing ground, packet
The steel-pipe pile for sinking to sea bed is included, sea bed is soft soil foundation, further includes being formed in the regional area of soft soil foundation using sand pile technique
Consolidated subsoil, steel-pipe pile is inserted through consolidated subsoil and sinks to soft soil foundation, and consolidated subsoil includes soft between sand pile and sand pile
Soil;Sand pile uniform intervals arrangement;The center longitudinal axis of consolidated subsoil and the center longitudinal axis of steel-pipe pile are consistent.
Based on above-mentioned technical characteristic: the periphery and inside of steel-pipe pile are consolidated subsoil.
Based on above-mentioned technical characteristic: the periphery of steel-pipe pile is consolidated subsoil, is weak soil in steel-pipe pile.
Based on above-mentioned technical characteristic: in the upper surface of soft soil foundation, stake week protection against erosion knot is provided with around steel-pipe pile
Structure.
Based on above-mentioned technical characteristic: stake week Anti-scouring structure is jackstone or soft raft or interlock block or what solidified earth was paved into covers
Cap rock.
Based on above-mentioned technical characteristic: sand pile is in concentric circles or positive triangle or arranged in squares.
Based on above-mentioned technical characteristic: sand pile includes sand compaction pile.
Accessory structure is installed in being located at outside the above pile body of sea bed for steel-pipe pile.Accessory structure mainly includes but is not limited to that steel is flat
Platform, berthing structure and cable tube.Reserved location on steel-pipe pile, for being connect with accessory structure.
In above-mentioned technical proposal, the effect of sand pile has several aspects: first is that soft soil foundation locally displacement, i.e. sand pile intensity
Higher than the intensity of surrounding weak soil, form compound foundation, integral strength is improved than original soil body.Second is that surrounding is soft as drainage channel
Water in soil is discharged under outer load action realizes that soil strength improves.Third is that crowd in-out effects, work progress has weak soil around
Squeezing action promotes the water in weak soil to be around discharged and realizes that soil strength improves.
The technical program is also applied for sand compaction pile, and sand compaction pile can become more closely knit under effect of vibration, and intensity can mention
It is high;It is stronger to surrounding soil squeezing action simultaneously, it forces the water in weak soil to be around discharged and realizes that soil strength improves, consolidation effect
Can be better than common sand pile, drainage effect is then slightly weak.
There is the marine single-pile foundation of sand pile reinforcing ground or sand compaction pile consolidated subsoil using this, single-pile foundation can be made
Suitable for wider array of sea area, bigger blower type, from this basic aspect of blower foundation type selecting, avoid using high-rise pile cap,
The higher type of foundation of the costs such as spider, jacket shortens construction work so that offshore wind turbine foundation project cost be effectively reduced
Phase promotes wind power plant power benefit.
This has the marine single-pile foundation of sand pile reinforcing ground or sand compaction pile consolidated subsoil, single relative to common sea
Pile foundation, horizontal bearing capacity effectively improve, and are effectively reduced stake top horizontal comparison, and corner is effectively reduced at single pile mud face, improve
" structure+basis " entirety natural frequency of vibration, while there is the benefit for saving single-pile foundation steel using amount.
As above, the high marine single-pile foundation of horizontal bearing performance in soft soil foundation of the present invention, has the advantages that
The high marine single-pile foundation of horizontal bearing performance in the soft soil foundation, it is economical, safe and reliable, it is suitable for wider array of sea area, more
Big blower type, having in terms of project cost significantly reduces;And construction technology is simple, need to only increase small range
Sandy pile construction, carry out get up easily and effectively.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for the marine single-pile foundation that the present invention has sand pile reinforcing ground.
Fig. 2 is the plan view of the first embodiment of the marine single-pile foundation that the present invention has sand pile reinforcing ground.
Fig. 3 is the plan view of second of embodiment of the marine single-pile foundation that the present invention has sand pile reinforcing ground.
Fig. 4 is the plan view of the third embodiment of the marine single-pile foundation that the present invention has sand pile reinforcing ground.
Label declaration
Soft soil foundation 1;Steel-pipe pile 2;Sand pile 3;Consolidated subsoil 4;The all Anti-scouring structures 5 of stake;Accessory structure 6;Mud face 7.
Specific embodiment
Specific embodiments of the present invention will be described in further detail with reference to the accompanying drawing.These embodiments are only used for
Illustrate the present invention, and not limitation of the present invention.
In the description of the present invention, it should be noted that term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair
Limitation of the invention.In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply opposite
Importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected;It can
To be mechanical connection, it is also possible to be electrically connected;It can be directly connected, can be also possible to indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood as the case may be
Concrete meaning in the present invention.
In addition, in the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or more.
As shown in Figure 1, steel-pipe pile 2 is sunk to sea bed, sea bed is soft soil foundation 1, the partial zones setting in soft soil foundation 1
Using the consolidated subsoil 4 of sand pile technique, steel-pipe pile 2 is inserted through consolidated subsoil 4 and sinks to soft soil foundation, and consolidated subsoil 4 includes
Sand pile 3 and weak soil therebetween.The center longitudinal axis of consolidated subsoil 4 is consistent with the center longitudinal axis of steel-pipe pile 2.Consolidated subsoil 4 is risen
Journey is located at 7 or less the position of mud face of soft soil foundation, and the bottom elevation incorporation engineering of consolidated subsoil needs and construction equipment condition determines.
The size of consolidated subsoil can be practical according to each engineering, comprehensively considers Bearing Capacity of Steel Pipe Piles requirement, Deformation control and project cost
It determines.In the upper surface of soft soil foundation, stake week Anti-scouring structure 5 is set around 2 surrounding of steel-pipe pile, stake week Anti-scouring structure can be with
The coating being paved into using different schemes, such as jackstone, soft raft, interlock block, solidified earth etc., function are prevented around stake
The soil body washed away by water flow.Soft raft includes geotextile and filler material etc.;Interlock block includes armored concrete etc..The all erosion controls of stake
The flat shape of brush configuration 5 is unlimited, and outer edge can be designed to that round or polygon or irregular shape, size can bases
Each engineering is practical to be determined.Accessory structure 6 is installed in being located at outside the above pile body of sea bed for steel-pipe pile.Accessory structure 6 mainly includes but not
It is limited to steel platform, berthing structure and cable tube.Reserved location on steel-pipe pile, for being connect with accessory structure 6.
Steel-pipe pile 2 transmits superstructure load for supporting blower fan tower barrel in the present invention.The consolidated subsoil 4 of sand pile technique
Main function is to provide horizontal restraint for steel-pipe pile 2, horizontal loading is spread and is transmitted to soft soil foundation 1.The all protection against erosion knots of stake
Structure 5 for protecting soft soil foundation 1 and consolidated subsoil 4 avoids that level can not be provided about since 2 surrounding soil of steel-pipe pile is washed away
Beam.
Fig. 2 show the plane of the first embodiment of marine single-pile foundation of the present invention with sand pile reinforcing ground
Figure.The concentric circles interval of different radii of the sand pile 3 outside steel-pipe pile 2 is evenly arranged.Sand pile 3 can be cut by steel-pipe pile 2, be realized
The close contact of sand pile and steel-pipe pile.Sand pile, i.e. adding using sand pile technique can be not provided with inside steel-pipe pile 2 shown in Fig. 2
Gu ground 4 is arranged only at the peripheral region of steel-pipe pile 2.
Fig. 3 and Fig. 4 is the flat of the other two kinds of embodiments for the marine single-pile foundation that the present invention has sand pile reinforcing ground
Face figure.Sand pile 3 is evenly arranged.It is illustrated in figure 33 quadrate array of sand pile arrangement.3 Triangular array of sand pile as shown in Figure 4
Arrangement.The insertion of steel-pipe pile 2 has the consolidated subsoil 4 of sand pile, the center longitudinal axis of consolidated subsoil 4 and the center longitudinal axis one of steel-pipe pile 2
It causes.There is sand pile 3 in steel-pipe pile 2, forms uniform consolidated subsoil 4 preferably.The arrangement mode of sand pile or sand compaction pile is usually just
Rectangular or equilateral triangle should be evenly arranged, and the setting of stake diameter and spacing can refer to " marine traffic engineering code for foundation design "
(JTS147-2017)。
Marine single-pile foundation construction method citing of the invention: first by design drawing concentric circles or positive triangle arrangement or just
Square arrangement carries out sand pile or sand compaction pile construction, belongs to mature technology, so far realize sand pile or sand compaction pile technique plus
Gu ground 4.Then 2 piling construction of steel-pipe pile is completed.Anti-scouring structure 5 is carried out, accessory structure 6 is finally installed.The present invention realizes
Horizontal fan load passes to sand pile by steel-pipe pile 2 or the consolidated subsoil 4 of sand compaction pile technique passes to soft soil foundation 1 around again,
Path of Force Transfer is succinctly direct.
To sum up, the present invention improves the strength and stiffness of pile peripheral earth using sand pile or sand compaction pile, improves soft soil foundation
Horizontal bearing performance, it is economical, safe and reliable.Horizontal bearing capacity of the present invention is high, Horizontal Displacement is small, pile body inclination angle is small, basic
Rigidity is big, adapts to the big feature of offshore wind turbine horizontal loading, meets offshore wind turbine to the tight of horizontal displacement of foundation and pile body inclination angle
Lattice requirement meets the requirement of " structure+basis " the whole natural frequency of vibration.The high sea of horizontal bearing performance in this soft soil foundation is single
Pile foundation breaks through restriction of the soft soil foundation to single-pile foundation, wheel hub height bigger suitable for single-machine capacity suitable for wider array of sea area
The blower that Du Genggao, blade are longer, horizontal loading is bigger can be avoided from this basic aspect of blower foundation type selecting using height
The higher type of foundation of the costs such as pile framing, spider, jacket subtracts so that offshore wind turbine foundation project cost be effectively reduced
The short construction period improves the economic benefit of marine wind electric field;And construction technology is simple, need to only increase small-scale sand pile or squeeze
Close sandy pile construction is carried out easily and effectively.So the present invention effectively overcome in existing single-pile foundation in soft soil foundation
The difficult point of application, thus have high industrial utilization value.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
The personage for knowing this technology all without departing from the spirit and scope of the present invention, carries out modifications and changes to above-described embodiment.Cause
This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as
At all equivalent modifications or change, should be covered by the claims of the present invention.
Claims (7)
1. a kind of marine single-pile foundation with sand pile reinforcing ground, the steel-pipe pile (2) including sinking to sea bed, the sea bed are soft
Soil base (1), it is characterised in that: further include the soft soil foundation regional area use sand pile technique formed consolidated subsoil
(4), the steel-pipe pile (2) is inserted through the consolidated subsoil (4) and sinks to the soft soil foundation, consolidated subsoil (4) packet
Include the weak soil between sand pile (3) and sand pile (3);Sand pile (3) the uniform intervals arrangement;The center longitudinal axis of the consolidated subsoil (4)
It is consistent with the center longitudinal axis of the steel-pipe pile (2).
2. a kind of marine single-pile foundation with sand pile reinforcing ground according to claim 1, it is characterised in that: the steel
The periphery and inside of tubular pole (2) are the consolidated subsoil (4).
3. a kind of marine single-pile foundation with sand pile reinforcing ground according to claim 1, it is characterised in that: the steel
The periphery of tubular pole (2) is the consolidated subsoil (4), is weak soil in the steel-pipe pile (2).
4. a kind of marine single-pile foundation with sand pile reinforcing ground according to claim 1, it is characterised in that: described
The upper surface of soft soil foundation (1) is provided with stake week Anti-scouring structure (5) around the steel-pipe pile (2).
5. a kind of marine single-pile foundation with sand pile reinforcing ground according to claim 4, it is characterised in that: the stake
All Anti-scouring structures (5) are jackstone or soft raft or interlock block or the coating that solidified earth is paved into.
6. a kind of marine single-pile foundation with sand pile reinforcing ground according to claim 1, it is characterised in that: the sand
Stake is in concentric circles or positive triangle or arranged in squares.
7. a kind of marine single-pile foundation with sand pile reinforcing ground described in any one of -6 according to claim 1, special
Sign is: the sand pile includes sand compaction pile.
Priority Applications (1)
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CN201910776949.3A CN110439020A (en) | 2019-08-22 | 2019-08-22 | Marine single-pile foundation with sand pile reinforcing ground |
Applications Claiming Priority (1)
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CN201910776949.3A CN110439020A (en) | 2019-08-22 | 2019-08-22 | Marine single-pile foundation with sand pile reinforcing ground |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112211215A (en) * | 2020-09-30 | 2021-01-12 | 同济大学建筑设计研究院(集团)有限公司 | Negative pressure ring reinforced rigid short pile foundation and installation method |
CN112663668A (en) * | 2021-01-15 | 2021-04-16 | 中国能源建设集团浙江省电力设计院有限公司 | Disc type composite single-pile fan foundation suitable for soft soil seabed and construction method |
CN112922019A (en) * | 2021-03-08 | 2021-06-08 | 中国长江三峡集团有限公司 | Single-pile foundation for reinforcing soft soil foundation by offshore wind power vibroflotation cemented pile and construction method |
CN115075283A (en) * | 2021-03-16 | 2022-09-20 | 中国电建集团华东勘测设计研究院有限公司 | Anti-scouring structure for single pile foundation of offshore wind turbine generator and construction method of anti-scouring structure |
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CN112211215A (en) * | 2020-09-30 | 2021-01-12 | 同济大学建筑设计研究院(集团)有限公司 | Negative pressure ring reinforced rigid short pile foundation and installation method |
CN112663668A (en) * | 2021-01-15 | 2021-04-16 | 中国能源建设集团浙江省电力设计院有限公司 | Disc type composite single-pile fan foundation suitable for soft soil seabed and construction method |
CN112922019A (en) * | 2021-03-08 | 2021-06-08 | 中国长江三峡集团有限公司 | Single-pile foundation for reinforcing soft soil foundation by offshore wind power vibroflotation cemented pile and construction method |
CN115075283A (en) * | 2021-03-16 | 2022-09-20 | 中国电建集团华东勘测设计研究院有限公司 | Anti-scouring structure for single pile foundation of offshore wind turbine generator and construction method of anti-scouring structure |
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