CN106120880A - A kind of offshore wind farm single-pile foundation Compressive Bearing Capacity assay device - Google Patents
A kind of offshore wind farm single-pile foundation Compressive Bearing Capacity assay device Download PDFInfo
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- CN106120880A CN106120880A CN201610770632.5A CN201610770632A CN106120880A CN 106120880 A CN106120880 A CN 106120880A CN 201610770632 A CN201610770632 A CN 201610770632A CN 106120880 A CN106120880 A CN 106120880A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D33/00—Testing foundations or foundation structures
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Abstract
The invention discloses a kind of offshore wind farm single-pile foundation Compressive Bearing Capacity assay device, it includes the test pile squeezing into the following supporting course in mud face to obtain stability, tilt to squeeze on the same straight line of described test pile, and it is installed with two reference stakes, lateral symmetry at test pile and reference stake squeezes into many anchoring piles, the top of described many anchoring piles is fixedly linked by spacing steel pipe, is provided with test pile platform at the top of anchoring pile, and the top of described test pile platform is provided with reaction frame system.This assay device is greatly saved the cost of offshore wind farm single-pile foundation test, and improves work efficiency, reduces proof strength.
Description
Technical field
The present invention relates to a kind of offshore wind farm single-pile foundation Compressive Bearing Capacity assay device and implementation thereof, particular for
Single pile compression test under offshore wind farm large scale pile foundation, big load action.
Background technology
China coastal seas wind-resources is abundant, wind speed is stable, little to the negative effect of environment, annual utilization hours is high, be not take up
The advantages such as land resource, are just becoming primary study and the developing direction of countries in the world.
The most domestic on coastal waters marine bed (flour sand, clay and mutual interlayer) grinding the impact of blower fan Pile Bearing Capacity
Study carefully achievement less, also there is no corresponding design specification.The sea bed load of different geographical determine different pile foundation carrying patterns and
Bearer properties.The diameter of offshore wind turbine single-pile foundation is generally up to 4-6m at present, by holding of experimental study large diameter steel pipe pile
Loading capability characteristic is the most necessary, but existing conventional test methods can not meet the test requirements document of large diameter steel pipe pile, therefore, needs
Design a kind of bearing capacity of single pile assay device.
Summary of the invention
The present invention, according to the deficiencies in the prior art, discloses a kind of offshore wind farm single-pile foundation Compressive Bearing Capacity test dress
Putting, this assay device is greatly saved the cost of offshore wind farm single-pile foundation test, and improves work efficiency, reduces
Proof strength.
In order to solve above-mentioned technical problem, the present invention proposes techniques below scheme: a kind of offshore wind farm single-pile foundation resistance to compression
Test device for multifunctional, it includes squeezing into the following supporting course in mud face to obtain the test pile of stability, and described test pile is with the most always
Tilting to squeeze on line, and be installed with two reference stakes, the lateral symmetry at test pile and reference stake squeezes into many anchoring piles, institute
The top stating many anchoring piles is fixedly linked by spacing steel pipe, is provided with test pile platform, described test pile platform at the top of anchoring pile
Top reaction frame system is installed.
Described reaction frame system includes that pile cover, described pile cover are fixedly mounted on the top of anchoring pile, and described pile cover is welded with
Anchoring pile bracket；Being fixed with Two bors d's oeuveres side bar on described anchoring pile bracket, the top of described Two bors d's oeuveres side bar is provided with pressure beam, described pressure beam
Two ends are fixedly linked by the base plate of pull bar Yu anchoring pile bracket and Two bors d's oeuveres side bar are fixed on anchoring pile bracket top, on two groups of Two bors d's oeuveres limits
It is installed with Three kinds of hors d'oeuvres girder by stiffening rib steel plate on beam.
Described anchoring pile bracket includes floor and base plate, and described floor square crossing is arranged, is fixedly welded on the top of base plate.
Being provided with hydraulic jack between described Three kinds of hors d'oeuvres girder and test pile, bottom and the top of described hydraulic jack are each
Being provided with a distribution plate, described hydraulic jack is connected with test apparatus, measurement and data acquisition unit by holding wire.
The overhead concrete bearing platform of described anchoring pile and reference stake, as concrete High-Rise Pile Cap Foundation, holds at concrete
The top fixed installation blower fan tower barrel of platform.
The method have the advantages that:
1, near test pile, squeeze into anchoring pile and reference stake, anchoring pile is set up test pile platform waterborne；Steel corbel it is welded with on anchoring pile
Doing resistance to compression counter-force to support, install single pile pressure-resistant static load experimental reaction frame bridging system, after end to be tested, reference stake and anchoring pile continue
A steel pipe clump of piles as offshore wind farm High-Rise Pile Cap Foundation uses, and the method is greatly saved the test of offshore wind farm single-pile foundation
Cost.This device and method easy construction, effect be notable, low to sea trial equipment Requirement, greatly saves expense.Pass through
The installation strength of anchoring pile can be measured by single pile pressure-resistant static load experimental reaction frame bridging system, and then makes its satisfied design want
Ask, it is ensured that follow-up construction safety.
2, after off-test, continue at the overhead concrete bearing platform of anchoring pile and reference stake as concrete height stake
Cushion cap foundation, then at the top of concrete bearing platform fixed installation blower fan tower barrel, the cost of concrete high-rise pile cap about 11,000,000,
The cost of 1 test pile about 14,000,000, test pile after terminating is used as test pile anchoring pile and reference stake the anchoring pile of concrete high-rise pile cap, joint
About experimentation cost about 10,000,000, cost control is notable.
Accompanying drawing explanation
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
Fig. 1 is the test pile plane graph of the present invention.
Fig. 2 is A-A profile.
Fig. 3 is resistance to compression reaction frame elevation.
Fig. 4 is resistance to compression reaction frame plane graph.
Fig. 5 is anchoring pile bracket plane graph.
Fig. 6 is anchoring pile bracket plane graph.
Fig. 7 is high-rise pile cap schematic diagram.
In figure: test pile 1, anchoring pile 2, distribution plate 3, hydraulic jack 4, Three kinds of hors d'oeuvres girder 5, pile cover 6, Two bors d's oeuveres side bar 7, pressure beam
8, reference stake 9, floor 10, base plate 11, spacing steel pipe 12, test pile platform 13, pull bar 14, stiffening rib steel plate 15, concrete bearing platform
16, blower fan tower barrel 17；
2-1,2-2,2-3,2-4,2-5,2-6 are anchoring pile.
Detailed description of the invention
Below in conjunction with the accompanying drawings embodiments of the present invention are described further.
Such as Fig. 1-7, a kind of offshore wind farm single-pile foundation Compressive Bearing Capacity assay device, it includes squeezing into the following holding force in mud face
Layer, to obtain the test pile 1 of stability, the described same straight line of test pile 1 tilts to squeeze into, and is installed with two reference stakes
9, the lateral symmetry at test pile 1 and reference stake 9 squeezes into many anchoring piles 2, and spacing steel pipe 12 is passed through at the top of described many anchoring piles 2
Being fixedly linked, be provided with test pile platform 13 at the top of anchoring pile 2, the top of described test pile platform 13 is provided with reaction frame system.
Further, anchoring pile 2 work described in the present embodiment has 6, depending on wherein the radical of anchoring pile is incited somebody to action according to demand,
Strengthened the globality of anchoring pile by spacing steel pipe 12, limit anchoring pile and the changing of the relative positions occurs in test, it is ensured that test effect.
Further, described reaction frame system includes that pile cover 6, described pile cover 6 are fixedly mounted on the top of anchoring pile 2, described
Anchoring pile bracket it is welded with on pile cover 6；Being fixed with Two bors d's oeuveres side bar 7 on described anchoring pile bracket, the top of described Two bors d's oeuveres side bar 7 is provided with
Pressure beam 8, the two ends of described pressure beam 8 are fixedly linked by the base plate of pull bar 14 with anchoring pile bracket and Two bors d's oeuveres side bar 7 are fixed on anchoring pile
Bracket top, is installed with Three kinds of hors d'oeuvres girder 5 by stiffening rib steel plate 15 on two groups of Two bors d's oeuveres side bars 7.
Further, described anchoring pile bracket includes floor 10 and base plate 11, and described floor 10 square crossing is arranged, fixing weldering
It is connected on the top of base plate 11.Ensureing to connect rigidity and the reliability of node by welding, concrete size is according to load demand
It is fixed,
Further, hydraulic jack 4, the end of described hydraulic jack 4, are installed between described Three kinds of hors d'oeuvres girder 5 and test pile 1
End and top are respectively provided with a distribution plate 3, and described hydraulic jack 4 is by holding wire and test apparatus, measurement and data acquisition
Storage is connected.
Further, the overhead concrete bearing platform 16 of described anchoring pile 2 and reference stake 9 is as concrete high-rise pile cap base
Plinth, fixedly mounts blower fan tower barrel 17 at the top of concrete bearing platform 16.
The work process of the present invention and operation principle be:
The size of test pile 1 and driving depth are typically based on testing program and adopt calmly；The size of Two bors d's oeuveres side bar 7 and Three kinds of hors d'oeuvres girder 5 needs
According to the load that provided of test, ensure to occur without strength failure and stability destroy on the premise of according to calculating determine height,
Width, length and wall thickness.Anchoring pile bracket position is it is important to note that need to carry out calculating and Numerical-Mode according to the load of testing program
Intending, wherein floor 10 and the size of base plate 11 and thickness determine according to calculating, and the determination of the quantity and spacing of floor need to be by weldering
The calculating of seam determines, to ensure rigidity and the reliability of junction point；The stake footpath of anchoring pile 2 is generally less than the stake footpath of test pile 1, waits to try
After having tested, anchoring pile 2 and reference stake 9 can continue to use, greatly as a steel pipe clump of piles for offshore wind farm High-Rise Pile Cap Foundation
Save experimentation cost.
As it is shown in fig. 7, after off-test, continue the overhead concrete bearing platform 16 at anchoring pile 2 and reference stake 9 and make
For concrete High-Rise Pile Cap Foundation, then fixedly mount blower fan tower barrel 17, concrete high pile at the top of concrete bearing platform 16
The cost of platform about 11,000,000, the cost of 1 test pile about 14,000,000, test pile is used as concrete test pile anchoring pile and reference stake after terminating
The anchoring pile of high-rise pile cap, saves experimentation cost about 10,000,000, and cost control is notable.
By above-mentioned description, those skilled in the art completely can be at the model without departing from this invention technological thought
In enclosing, carry out various change and amendment all within protection scope of the present invention.The unaccomplished matter of the present invention, belongs to ability
The common knowledge of field technique personnel.
Claims (5)
1. an offshore wind farm single-pile foundation Compressive Bearing Capacity assay device, it is characterised in that: it includes that squeezing into below mud face holds
Power layer, to obtain the test pile (1) of stability, described test pile (1) same straight line tilts to squeeze into, and is installed with two
Reference stake (9), the lateral symmetry at test pile (1) and reference stake (9) squeezes into many anchoring piles (2), the top of described many anchoring piles (2)
Portion is fixedly linked by spacing steel pipe (12), is provided with test pile platform (13), described test pile platform (13) at the top of anchoring pile (2)
Top reaction frame system is installed.
A kind of offshore wind farm single-pile foundation Compressive Bearing Capacity assay device the most according to claim 1, it is characterised in that: institute
State reaction frame system and include that pile cover (6), described pile cover (6) are fixedly mounted on the top of anchoring pile (2), the upper welding of described pile cover (6)
There is anchoring pile bracket；Being fixed with Two bors d's oeuveres side bar (7) on described anchoring pile bracket, the top of described Two bors d's oeuveres side bar (7) is provided with pressure beam
(8), the two ends of described pressure beam (8) are fixedly linked by the base plate of pull bar (14) with anchoring pile bracket and are fixed on by Two bors d's oeuveres side bar (7)
Anchoring pile bracket top, is installed with Three kinds of hors d'oeuvres girder (5) by stiffening rib steel plate (15) on two groups of Two bors d's oeuveres side bars (7).
A kind of offshore wind farm single-pile foundation Compressive Bearing Capacity assay device the most according to claim 2, it is characterised in that: institute
Stating anchoring pile bracket and include floor (10) and base plate (11), described floor (10) square crossing is arranged, is fixedly welded on base plate (11)
Top.
A kind of offshore wind farm single-pile foundation Compressive Bearing Capacity assay device the most according to claim 2, it is characterised in that: institute
State and hydraulic jack (4) is installed between Three kinds of hors d'oeuvres girder (5) and test pile (1), the bottom of described hydraulic jack (4) and top
Respectively being provided with a distribution plate (3), described hydraulic jack (4) is by holding wire and test apparatus, measurement and data acquisition unit
It is connected.
A kind of offshore wind farm single-pile foundation Compressive Bearing Capacity assay device the most according to claim 1, it is characterised in that: institute
State the overhead concrete bearing platform (16) of anchoring pile (2) and reference stake (9) as concrete High-Rise Pile Cap Foundation, hold at concrete
Top fixed installation blower fan tower barrel (17) of platform (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610770632.5A CN106120880A (en) | 2016-08-31 | 2016-08-31 | A kind of offshore wind farm single-pile foundation Compressive Bearing Capacity assay device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610770632.5A CN106120880A (en) | 2016-08-31 | 2016-08-31 | A kind of offshore wind farm single-pile foundation Compressive Bearing Capacity assay device |
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| CN106120880A true CN106120880A (en) | 2016-11-16 |
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| CN201610770632.5A Pending CN106120880A (en) | 2016-08-31 | 2016-08-31 | A kind of offshore wind farm single-pile foundation Compressive Bearing Capacity assay device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106638588A (en) * | 2017-01-18 | 2017-05-10 | 中交航局第工程有限公司 | Steel pipe pile cap bottom lifting device and mounting method thereof |
| CN109778926A (en) * | 2019-03-22 | 2019-05-21 | 交通运输部天津水运工程科学研究所 | A kind of single pile compression dead load test device, construction method and specific purpose tool |
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| CN103074909A (en) * | 2013-01-28 | 2013-05-01 | 中国水电顾问集团西北勘测设计研究院 | Static test method of vertical compression bearing capacity of single pile of wind farm fan foundation |
| JP2014088689A (en) * | 2012-10-30 | 2014-05-15 | Ssc Pile Association | Loading test method and loading test device for composite reinforcement ground |
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2016
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106638588A (en) * | 2017-01-18 | 2017-05-10 | 中交航局第工程有限公司 | Steel pipe pile cap bottom lifting device and mounting method thereof |
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| CN109778926A (en) * | 2019-03-22 | 2019-05-21 | 交通运输部天津水运工程科学研究所 | A kind of single pile compression dead load test device, construction method and specific purpose tool |
| CN109778926B (en) * | 2019-03-22 | 2024-02-02 | 交通运输部天津水运工程科学研究所 | Single pile compression-resistant static load test device, construction method and special tool |
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Effective date of registration: 20161219 Address after: 443002 Jianshe Road, Hubei, No. 1, Applicant after: China Three Gorges Corporation Address before: 443001 Dongshan Avenue, Hubei, Yichang, No. 80 Applicant before: Three Gorges Ecology Garden Co., Ltd. |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161116 |