CN109750693A - Offshore bearing platform pile torsion test device - Google Patents
Offshore bearing platform pile torsion test device Download PDFInfo
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- CN109750693A CN109750693A CN201910229778.2A CN201910229778A CN109750693A CN 109750693 A CN109750693 A CN 109750693A CN 201910229778 A CN201910229778 A CN 201910229778A CN 109750693 A CN109750693 A CN 109750693A
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- cushion cap
- model
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- stake
- trochus
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- 238000012360 testing method Methods 0.000 title claims abstract description 40
- 239000011888 foil Substances 0.000 claims abstract description 22
- 239000002689 soil Substances 0.000 claims abstract description 22
- 239000011521 glass Substances 0.000 claims abstract description 15
- 238000006243 chemical reaction Methods 0.000 claims abstract description 10
- 241001289840 Trochus Species 0.000 claims description 30
- 239000000203 mixture Substances 0.000 claims description 7
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- 230000003447 ipsilateral effect Effects 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 230000035807 sensation Effects 0.000 claims description 3
- 238000004088 simulation Methods 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 230000002457 bidirectional effect Effects 0.000 abstract 2
- 230000005540 biological transmission Effects 0.000 abstract 2
- 230000007613 environmental effect Effects 0.000 abstract 1
- 238000011161 development Methods 0.000 description 4
- 238000011160 research Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention belongs to the technical field of test equipment for buildings, and relates to a marine pile cap torsion test device.A high-strength glass box is placed on a reaction frame, the high-strength glass box is filled with a soil sample required by a test, pile bodies are uniformly arranged at the bottom of a square bearing platform, a strain foil is pasted on each pile body, and the pile bodies pasted with the strain foils are driven into the soil sample required by the test in a model box; a fan model is vertically arranged at the upper part of the square bearing platform, and fan blades are arranged on the fan model; a square hole disc matched with the pile model of the bearing platform is arranged in the rotating force loading system, a gear on the square hole disc is matched with a bidirectional gear device, the bidirectional gear device consists of four hydraulic pressure devices, every two hydraulic pressure devices are arranged on one side, two hydraulic pressures on the same side are connected through a gear strip, and a gear scale strip is arranged on the gear strip; one end of the data transmission line is connected with the controller, and the other end of the data transmission line is connected with the strain gauge; the device has the advantages of simple structure, scientific principle, convenient operation, low maintenance cost and environmental friendliness.
Description
Technical field:
The invention belongs to technical field of test equipment for building, are related to a kind of Offshore Pile Cap stake crane torsion test device.
Background technique:
In recent years, as town and country fast development, fossil energy are constantly reduced, the development and utilization of new energy have been that society can
The inevitable requirement of sustainable development.Wind resource is a kind of sustainable green energy resource of achievable energy-saving and emission-reduction, and wind resource
It is innumerable, environmentally protective.But traditional wind generator system is mostly construction in land, though technology comparative maturity,
But air quantity is smaller, is not able to satisfy people for the demand of the energy, therefore, offshore wind power system is just come into being, and marine
Wind generator system needs to connect by cushion cap with more piles more, and then realizes the stable operation of offshore wind power system.With
For Offshore Pile Cap stake research gradually deeply, research find sea often have the wind with twisting resistance, such as the lower dragon of series
Roll up wind so that cushion cap stake must not non resistance torsion load, and currently, the on-the-spot test means of Offshore Pile Cap stake are insufficient, theoretical mould
The foundation of type is not yet unified, and the scarcity etc. of experimental rig seriously hampers the development of Offshore Pile Cap stake.Therefore, it is necessary to open
A kind of cushion cap stake crane torsion test device is sent out and developed, carries out the stake of Eccentric Loads in Layered Soils and Research cushion cap and surrounding soil in torsion masterpiece
Load transfer mechanism under, the research and extension to Offshore Pile Cap stake technology have most important theories meaning and Engineering Guidance valence
Value.
Summary of the invention:
Present invention aims to overcome that disadvantage of the existing technology, design provides a kind of Offshore Pile Cap stake torsion test dress
It sets, situation of simulation Offshore Pile Cap stake under the conditions of having the wind of twisting resistance, for analyzing cushion cap stake the twisting resistance under the conditions of
Load transmitting.
To achieve the goals above, main structure of the invention includes soil sample, bi-directional teeth trochus needed for testing, square hole circle
Disk, gear scale strip, controller, high strength glass case, reaction frame, data line, pile body, rectangular cushion cap, foil gauge, blower
Model and fan blade；Soil sample needed for testing, high strength glass case and reaction frame composition model case, model casing is for placing needed for test
Soil sample simultaneously provides counter-force supporting point for bi-directional teeth trochus, and high strength glass case is placed on reaction frame, and high strength glass case is equipped with
Soil sample needed for testing, pile body, rectangular cushion cap, foil gauge, blower model and fan blade form cushion cap stake model, more for simulating sea
Stress of the cushion cap of the elongated stake composition of root in the state of having the sea wind of twisting resistance；It uniformly installs the bottom of rectangular cushion cap
Ten six roots of sensation pile bodies post a foil gauge every 10 centimetres on every pile body, and the pile body for posting foil gauge is squeezed into model casing
In soil sample needed for testing；The top of rectangular cushion cap is vertically equipped with blower model, is equipped with fan blade on blower model；Two-way gear
Device and square hole disk form rotary force loading system；It rotates and is equipped with inside force loading system and the square hole of cushion cap stake Model Matching circle
Disk, the gear on square hole disk are matched with bi-directional teeth trochus, apply twisting resistance to cushion cap stake model by bi-directional teeth trochus, two-way
Gear device is made of four hydraulic coupling devices, and every two hydraulic coupling device passes through gear bar phase in side, two ipsilateral hydraulic strength
Even, gear bar is equipped with gear scale strip；Data acquisition control system is made of controller and data line, data line
One end be connected with controller, the other end is connected with foil gauge, and by pile body, the measured data under twisting resistance pass to control to foil gauge
On device processed, is recorded by controller and analyzed；Data acquisition control system can be by inputting the diameter of square hole disk and two-way
The distance of gear device gears slip extrapolates the rotational angle of rectangular cushion cap, also can directly input angle is driven on the controller
Dynamic bi-directional teeth trochus, reaches desired windup-degree.
The present invention carries out the detailed process of cushion cap stake stress-strain tester of each pile body under by torsion wind-force are as follows:
1, preparation: the pile body of cushion cap stake model is sticked in soil sample needed for foil gauge squeezes into the test in model casing,
And data transport line is connect with controller, while adjusting the spacing of bi-directional teeth trochus, then by square hole disk and cushion cap stake model
The connection of rectangular cushion cap, and square hole disk is mounted on bi-directional teeth trochus, opens controller, carry out examination torsion, observation control
Whether the data acquisition on device is normal；
2, formal test: controlling bi-directional teeth trochus by controller, applies twisting resistance to square hole disk, to realize to holding
The twisting action of platform stake model observes and records the ess-strain situation and data of cushion cap stake model；
3, test is completed: test institute's measured data being collected and analyzed, controller is closed, removes square hole disk, will hold
Platform stake model takes out, and pulls open the distance of bi-directional teeth trochus, keeps data transport line well, realizes cushion cap stake each stake under by torsion wind-force
The stress-strain tester of body.
Compared with prior art, the present invention having the advantage that first is that simulating true sea using cushion cap stake and model casing
Upper cushion cap stake is become close with real working condition by the effect of twisting resistance；Second is that by bi-directional teeth trochus and square hole disk to cushion cap
Stake is controlled and is further applied load, and two kinds of torsional modes of angle and load can be used, can be selected according to actual condition；Three
It is that gyration degree is calculated using electronics and scale two ways, it is more accurate measures numerical value；Fourth is that replacement square hole circle can be passed through
The internal diameter of disk adapts to different size of cushion cap stake, more convenient；Its structure is simple, and scientific in principle is easy to operate, maintenance cost
It is low, it is environmental-friendly.
Detailed description of the invention:
Fig. 1 is main structure top view of the invention.
Fig. 2 is cushion cap stake model structure schematic illustration of the present invention.
Fig. 3 is main structure schematic illustration of the invention.
Specific embodiment:
The invention will be further described by way of example and in conjunction with the accompanying drawings.
Embodiment:
Main structure of the invention include test needed for soil sample 1, bi-directional teeth trochus 2, square hole disk 3, gear scale strip 4,
Controller 5, high strength glass case 6, reaction frame 7, data line 8, pile body 11, rectangular cushion cap 12, foil gauge 13, blower model
14 and fan blade 15；7 composition model case of soil sample 1, high strength glass case 6 and reaction frame needed for testing, model casing is for placing test
Required soil sample 1 simultaneously provides counter-force supporting point for bi-directional teeth trochus 2, and high strength glass case 6 is placed on reaction frame 7, high-strength glass
Glass case 6 forms cushion cap equipped with soil sample 1 needed for testing, pile body 11, rectangular cushion cap 12, foil gauge 13, blower model 14 and fan blade 15
Stake model, for simulating stress of the cushion cap of marine more elongated stake compositions in the state of having the sea wind of twisting resistance；
Ten six roots of sensation pile bodies 11 are uniformly installed in the bottom of rectangular cushion cap 12, and a foil gauge 13 is posted every 10 centimetres on every pile body 11,
Post foil gauge 13 pile body 11 squeeze into the test in model casing needed in soil sample 1；The top of rectangular cushion cap 12 is vertically equipped with
Blower model 14 is equipped with fan blade 15 on blower model 14；Bi-directional teeth trochus 2 and the composition rotation force loading system of square hole disk 3；
Rotate the square hole disk 3 being equipped with inside force loading system with cushion cap stake Model Matching, gear and two-way gear on square hole disk 3
Device 2 matches, and applies twisting resistance to cushion cap stake model by bi-directional teeth trochus 2, and bi-directional teeth trochus 2 is made of four hydraulic coupling devices 9,
Every two hydraulic coupling device 9 is connected in side, the hydraulic strength 9 of ipsilateral two by gear bar 10, and gear bar 10 is equipped with gear
Scale strip 4；Data acquisition control system is made of controller 5 and data line 8, one end of data line 8 and controller 5
It is connected, the other end is connected with foil gauge 13, and by pile body 11, the measured data under twisting resistance pass on controller 5 foil gauge 13,
It is recorded and is analyzed by controller 5；Data acquisition control system can pass through the diameter and bi-directional teeth trochus 2 of input square hole disk
The distance of gears slip extrapolates the rotational angle of rectangular cushion cap 12, input angle can also drive directly on controller 5
Bi-directional teeth trochus 2 reaches desired windup-degree.
The present embodiment carries out the detailed process of cushion cap stake stress-strain tester of each pile body under by torsion wind-force are as follows:
1, the pile body 11 of cushion cap stake model preparation: is sticked into soil sample needed for foil gauge 13 squeezes into the test in model casing
In 1, and data transport line 8 is connect with controller 5, while adjusting the spacing of bi-directional teeth trochus 2, then by square hole disk 3 with hold
The rectangular cushion cap 12 of platform stake model connects, and square hole disk 3 is mounted on bi-directional teeth trochus 2, opens controller 5, is tried
Whether torsion, the data acquisition observed on controller 5 are normal；
2, formal test: controlling bi-directional teeth trochus 2 by controller 5, applies twisting resistance to square hole disk 3, to realize
To the twisting action of cushion cap stake model, the ess-strain situation and data of cushion cap stake model are observed and recorded；
3, test is completed: test institute's measured data is collected and is analyzed, controller 5 is closed, removes square hole disk 3, it will
Cushion cap stake model takes out, and pulls open the distance of bi-directional teeth trochus 2, keeps data transport line 8 well, realizes cushion cap stake under by torsion wind-force
The stress-strain tester of each pile body.
Claims (2)
1. a kind of Offshore Pile Cap stake crane torsion test device, it is characterised in that main structure includes soil sample, two-way gear needed for testing
Device, gear scale strip, controller, high strength glass case, reaction frame, data line, pile body, rectangular cushion cap, is answered at square hole disk
Become piece, blower model and fan blade；Soil sample needed for testing, high strength glass case and reaction frame composition model case, model casing is for putting
Soil sample needed for setting test simultaneously provides counter-force supporting point for bi-directional teeth trochus, and high strength glass case is placed on reaction frame, high-intensitive
Glass box forms cushion cap stake model, is used for equipped with soil sample needed for testing, pile body, rectangular cushion cap, foil gauge, blower model and fan blade
Stress of the cushion cap of simulation marine more elongated stake compositions in the state of having the sea wind of twisting resistance；The bottom of rectangular cushion cap
Ten six roots of sensation pile bodies are uniformly installed in portion, a foil gauge are posted every 10 centimetres on every pile body, the pile body for posting foil gauge is squeezed into
In soil sample needed for test in model casing；The top of rectangular cushion cap is vertically equipped with blower model, is equipped with wind on blower model
Leaf；Bi-directional teeth trochus and square hole disk form rotary force loading system；It rotates and is equipped with and cushion cap stake model inside force loading system
Matched square hole disk, the gear on square hole disk are matched with bi-directional teeth trochus, are applied by bi-directional teeth trochus to cushion cap stake model
Add twisting resistance, bi-directional teeth trochus is made of four hydraulic coupling devices, and every two hydraulic coupling device is in side, two ipsilateral hydraulic strength
It is connected by gear bar, gear bar is equipped with gear scale strip；Data acquisition control system is by controller and data line group
At one end of data line is connected with controller, and the other end is connected with foil gauge, and foil gauge is surveyed pile body under twisting resistance
It obtains data to pass on controller, is recorded by controller and analyzed.
2. Offshore Pile Cap stake crane torsion test device according to claim 1, it is characterised in that carry out cushion cap stake by torsion wind-force
Under each pile body stress-strain tester detailed process are as follows:
(1) preparation: the pile body of cushion cap stake model is sticked in soil sample needed for foil gauge squeezes into the test in model casing, and will
Data transport line is connect with controller, while adjusting the spacing of bi-directional teeth trochus, then by the side of square hole disk and cushion cap stake model
The connection of shape cushion cap, and square hole disk is mounted on bi-directional teeth trochus, controller is opened, examination torsion is carried out, is observed on controller
Data acquisition it is whether normal；
(2) formal test: controlling bi-directional teeth trochus by controller, applies twisting resistance to square hole disk, to realize to cushion cap
The twisting action of stake model, observes and records the ess-strain situation and data of cushion cap stake model；
(3) test is completed: test institute's measured data being collected and analyzed, controller is closed, square hole disk is removed, by cushion cap stake
Model takes out, and pulls open the distance of bi-directional teeth trochus, keeps data transport line, realization cushion cap stake each pile body under by torsion wind-force well
Stress-strain tester.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910229778.2A CN109750693A (en) | 2019-03-26 | 2019-03-26 | Offshore bearing platform pile torsion test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910229778.2A CN109750693A (en) | 2019-03-26 | 2019-03-26 | Offshore bearing platform pile torsion test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109750693A true CN109750693A (en) | 2019-05-14 |
Family
ID=66409357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910229778.2A Pending CN109750693A (en) | 2019-03-26 | 2019-03-26 | Offshore bearing platform pile torsion test device |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101846561A (en) * | 2010-06-18 | 2010-09-29 | 长沙理工大学 | Mollisol area friction pile load transference curve tester |
| CN203337376U (en) * | 2013-07-11 | 2013-12-11 | 宁夏青山试验机有限公司 | Pre-twisting machine |
| CN204626476U (en) * | 2015-05-14 | 2015-09-09 | 长安大学 | Based on geotechnical centrifuge, experimental rig that is vertical and torsion load is applied to pile foundation |
| KR101756755B1 (en) * | 2016-12-14 | 2017-07-12 | 태경개발(주) | System for evaluating impact safety of leveling tool for offshore wind turbine, and method for the same |
| CN107907481A (en) * | 2017-12-19 | 2018-04-13 | 浙江大学 | Stress state and the controllable hollow cylinder interface torsion shear apparatus of load path |
| CN108360577A (en) * | 2018-02-06 | 2018-08-03 | 太原理工大学 | Simulate the torque loading device and method of stake top linearly or nonlinearly deflection constraint |
| CN108385738A (en) * | 2018-02-06 | 2018-08-10 | 太原理工大学 | A kind of torque loading device and method of the constraint of simulation stake top linear rigidity |
| CN209816939U (en) * | 2019-03-26 | 2019-12-20 | 青岛理工大学 | Offshore bearing platform pile torsion test device |
-
2019
- 2019-03-26 CN CN201910229778.2A patent/CN109750693A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101846561A (en) * | 2010-06-18 | 2010-09-29 | 长沙理工大学 | Mollisol area friction pile load transference curve tester |
| CN203337376U (en) * | 2013-07-11 | 2013-12-11 | 宁夏青山试验机有限公司 | Pre-twisting machine |
| CN204626476U (en) * | 2015-05-14 | 2015-09-09 | 长安大学 | Based on geotechnical centrifuge, experimental rig that is vertical and torsion load is applied to pile foundation |
| KR101756755B1 (en) * | 2016-12-14 | 2017-07-12 | 태경개발(주) | System for evaluating impact safety of leveling tool for offshore wind turbine, and method for the same |
| CN107907481A (en) * | 2017-12-19 | 2018-04-13 | 浙江大学 | Stress state and the controllable hollow cylinder interface torsion shear apparatus of load path |
| CN108360577A (en) * | 2018-02-06 | 2018-08-03 | 太原理工大学 | Simulate the torque loading device and method of stake top linearly or nonlinearly deflection constraint |
| CN108385738A (en) * | 2018-02-06 | 2018-08-10 | 太原理工大学 | A kind of torque loading device and method of the constraint of simulation stake top linear rigidity |
| CN209816939U (en) * | 2019-03-26 | 2019-12-20 | 青岛理工大学 | Offshore bearing platform pile torsion test device |
Non-Patent Citations (1)
| Title |
|---|
| 夏登文: "《现役海洋平台结构检测与安全评估技术》", 中国海洋大学出版社, pages: 134 - 105 * |
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