CN107655662B - A kind of installation of screw pile and combined loading test device - Google Patents
A kind of installation of screw pile and combined loading test device Download PDFInfo
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- CN107655662B CN107655662B CN201710724514.5A CN201710724514A CN107655662B CN 107655662 B CN107655662 B CN 107655662B CN 201710724514 A CN201710724514 A CN 201710724514A CN 107655662 B CN107655662 B CN 107655662B
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- 238000009434 installation Methods 0.000 title claims abstract description 34
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- G—PHYSICS
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- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- G01—MEASURING; TESTING
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Abstract
The invention belongs to spiral pile driving construction and experimental technique fields, disclose a kind of installation of screw pile and combined loading test device, it is made of the power device and horizontal loading apparatus setting up the main support on experimental tank and being mounted on main support, power device includes coupling part, provides vertical power section and control torque portions, and horizontal loading apparatus includes horizontal bracket and horizontal direction electric pushrod.The present invention can be accurately controlled screw pile reverse speed and vertically movable speed, to meet the proportionate relationship of different size screw pile rotation speeds and decrease speed in installation process, preferably complete the installation of screw pile, and it can change the installation speed of screw pile, to measure influence of the different installation speeds for installation process；Different size of vertical force, horizontal force and torque can also be applied after installation is in place, while to screw pile, the most really simulate stress condition of screw pile under the conditions of Complicated Loads.
Description
Technical field
The invention belongs to spiral pile driving construction and experimental technique fields, in particular to a kind of by torsion and same
One time applied minimum pressure and installed screw pile, and applied the examination of vertical force, horizontal force and torque simultaneously after installation is complete
Experiment device.
Background technique
With the quickening of energy consumption speed, the reserves of the traditional energies such as coal, petroleum are more deficient, moreover, pass
Uniting, the energy is very huge for the harm of environment, and required cost of curbing environmental pollution is a huge investment again.Novel
Green energy resource, especially wind-power electricity generation and photovoltaic power generation are more and more favored.Traditional wind-powered electricity generation and photovoltaic plant uses pile foundation
Basis, the installation process of entire pile foundation is complicated, time-consuming, noise is big and huge for the disturbance of neighbours' soil body.
In addition to this, for Oversea wind power generation, quite high, however marine ring is required for the mounting condition of pile foundation
Border is ever-changing, and the soil environment of piling is also sufficiently complex, it is most likely that slips stake and refuses the engineering accidents such as hammer, causes huge
Economic loss.And for screw pile, installation speed is faster, smaller for the disturbance of surrounding soil, the noise of generation
Smaller, it will not slip stake and refuse phenomena such as hammering into shape for offshore wind farm.But the research of screw pile is also needed
Kind, especially screw pile research of (vertical, horizontal and moment of flexure etc. loads simultaneously) under the conditions of Combined Loading is even more relatively fewer.
Therefore, experimental facilities that corresponding problem is studied is directed to regard to very necessary.
Summary of the invention
It, can be according to different tests the present invention is directed to design to propose a kind of installation of screw pile and combined loading test device
The convenient and efficient installation of slot size, adjustable reverse speed and decrease speed complete different size screw pile installations, and in spiral shell
After rotation stake is installed while applying vertical force, horizontal direction power and torque, so that more true simulation screw pile is in top wind
Stress condition after machine installation is in place, the stress variation and soil deformation situation of pile body of further analyzing and researching, passes through interior
Careful analysis and summary are tested, to propose a kind of practical guidance specification as far as possible, is referred to play help for Practical Project
Lead effect.
In order to solve the above-mentioned technical problem, the present invention is achieved by technical solution below:
A kind of installation of screw pile and combined loading test device, by setting up the main support on experimental tank and being mounted on main support
On power device and horizontal loading apparatus constitute；
The power device include by four root long fixed optical axis connect upper mounted plate and bottom plate, upper mounted plate and
Bottom plate is equipped with four removable straight optical axis being vertically arranged, four removable straight optical axis by linear bearing
Upper mounted plate and bottom plate are sequentially passed through from top to bottom, and bottom end is fixedly connected with lower shifting board；The lower shifting board setting
Below the bottom plate, centre bore is offered in the middle part of the bottom plate, the lower shifting board is by passing through centre bore
Four short fixed optical axis being vertically arranged are connected with upper shifting board, and the upper shifting board is arranged in fixed plate and institute
It states between bottom plate；
Fixed plate is equipped with vertical servo motor and electric pushrod, and the vertical servo motor is described electronic pushes away
Bar provides power, and the electric pushrod bottom end passes through fixed plate and has pull pressure sensor by flanged joint, described
Pull pressure sensor lower part is by flanged joint in the upper shifting board upper surface；
There is torque servo motor in the upper shifting board lower end surface by flanged joint, and torque servo motor lower end passes through
Flanged joint has torque sensor, and the torque sensor lower end passes through flanged joint at the top of screw pile, the torque sensing
It is supported between the flange on the top of device and the flange of lower part by four torque support axis；The torque servo motor is arranged described
Above lower shifting board, the torque sensor is arranged below the lower shifting board；
The vertical servo motor and the torque servo motor pass through PCL control, and PCL is for coordinating screw pile installation
The ratio between reverse speed that the vertical servo motor vertical velocity provided and the torque servo motor provide in the process
Value, and stop the torque servo motor after screw pile is installed in place, the spiral is measured by the vertical servo motor
The vertical bearing capacity of stake；
The horizontal loading apparatus includes the horizontal bracket being mounted on the main support with its top, the horizontal bracket
Bottom is provided with horizontal direction electric pushrod, and the horizontal direction electric pushrod is used to apply horizontal thrust to the screw pile.
The main support includes two longitudinal steel pipes, is welded with and is equidistantly spaced between two longitudinal steel pipes
Multiple transverse direction steel pipes.
The bottom plate bottom surface is fixed with support base, support base be seated the main support and with the main support
It is welded and fixed.
The vertical servo motor provides the pressure of 1-2.5t, and the stroke of the electric pushrod is 0-1m, the tension and compression
The range of force snesor is 0-2t, and the torque servo motor provides the torque of 0-400Nm, and the measurement of the torque sensor is turned round
Square range is 0-400Nm.
Horizontal direction electric pushrod front end is provided with the horizontal anchor ear an of semi-circular shape, and the horizontal anchor ear is stuck in institute
It states outside screw pile, for horizontal thrust provided by the horizontal direction electric pushrod to be uniformly applied to screw pile.
The horizontal direction electric pushrod tail end is fixedly connected with horizontal position control panel, and the horizontal position control panel is default
There is screw hole；There are two the vertical chutes for the horizontal bracket lower part setting；Also cross the screw hole on the horizontal position control panel
With the screw attaching nut of the vertical chute of the horizontal bracket, the horizontal direction electric pushrod after adjusting vertical position is consolidated
Due to the horizontal bracket.
The horizontal bracket includes rectangular frame structure, is respectively welded in the middle part of two parallel edges of the rectangular frame structure
There are upright bar and diagonal brace, the upright bar is vertically arranged, and the diagonal brace lower end is welded in the upright bar lower part.
Two fixed beams are connected with by screw rod and nut at the top of the horizontal bracket, two fixed beams are erected on institute
Main support is stated, the horizontal bracket behind adjusting horizontal position is fixed on the main support.
The beneficial effects of the present invention are:
The invention proposes a kind of novel screw pile installations and combined loading test device, the device accurately to control
The reverse speed of screw pile processed and vertically movable speed, to meet in installation process different size screw pile rotation speeds under
The proportionate relationship of reduction of speed degree, preferably completes the installation of screw pile, and can change the installation speed of screw pile, to measure
Influence of the different installation speeds for installation process；Different size can also be applied after installation is in place, while to screw pile
Vertical force, horizontal force and torque, the most true stress condition of simulation screw pile under the conditions of Complicated Loads.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of screw pile installation and combined loading test device provided by the present invention；
Fig. 2 is the structural schematic diagram of main support；
Fig. 3 is the structural schematic diagram of power device；
Fig. 4-1 to Fig. 4-3 is the close up fragmentary schematic diagram of power device；
Fig. 5 is the structural schematic diagram of horizontal loading apparatus；
Fig. 6-1 to Fig. 6-2 is the close up fragmentary schematic diagram of horizontal loading apparatus.
In figure: 1, main support；2, power device；3, vertical electric pushrod；4, straight optical axis is moved；5, vertical servo electricity
Machine；6, long fixed optical axis；7, short fixed optical axis；8, torque servo motor；9, pull pressure sensor；10, torque sensor；11,
Screw pile；12, upper mounted plate；13, support base；14, bottom plate；15, long fixed optical axis fixation hole；16, support base is solid
Determine hole；17, linear bearing fixation hole；18, centre bore；19, upper shifting board；20, lower shifting board；21, torque support axis；22, straight
Spool is held；23, horizontal bracket；24, horizontal direction electric pushrod；25, horizontal anchor ear；26, horizontal position control panel；27, vertical sliding
Slot；28, screw rod；29, fixed beam.
Specific embodiment
For that can further appreciate that the contents of the present invention, feature and effect, the following examples are hereby given, and cooperates attached drawing detailed
It is described as follows:
As shown in Figure 1, present embodiments provide a kind of installation of screw pile and combined loading test device, by main support 1, dynamic
Power device 2 and horizontal loading apparatus are constituted.
As shown in Fig. 2, main support 1 includes longitudinal steel pipe of two root long 4m, four 1m are welded between two longitudinal steel pipes
Long lateral steel pipe, lateral steel pipe are transversely to the machine direction steel pipe and are equidistantly spaced；Main support 1 its put with longitudinal steel pipe both ends
It sets and is installed on experimental tank cushion cap, therefore the length of longitudinal steel pipe is set according to the size of experimental tank, lateral steel pipe is to two
Root longitudinal direction steel pipe plays support and booster action.Main support 1 rides upon on the experimental tank of 4m long, longitudinal steel pipe both ends and experimental tank
It is placed with concrete balancing weight above the position that cushion cap is in contact, provides reaction of bearing by concrete balancing weight, it is whole to guarantee
The stability of a experimental provision.
As shown in figure 3, power device 2 is made of coupling part, the vertical power section of offer and control torque portions.
As shown in Fig. 4-1 to Fig. 4-3, coupling part includes upper mounted plate 12, bottom plate 14, long fixed optical axis 6, support
Pedestal 13, linear bearing 22, removable straight optical axis 4, upper shifting board 19, lower shifting board 20, short fixed optical axis 7.
Upper mounted plate 12 and bottom plate 14 be parallel to each other and be it is horizontally disposed, upper mounted plate 12 and bottom plate 14 are logical
Cross the four long fixed optical axis 6 being vertically arranged connections.Upper mounted plate 12 and bottom plate 14 are grown there are four being respectively correspondingly arranged
Fixed optical axis fixation hole 15, while the drilling of four root long fixed optical axis, 6 upper and lower ends and tapping, are fixed by passing through long fixed optical axis
The both ends of long fixed optical axis 6 are fixedly connected with upper mounted plate 12 and bottom plate 14 by the screw in hole 15 respectively.
There are two support base 13, two support bases 13 are respectively fixedly connected in lower fixation the installation of 14 bottom of bottom plate
14 both ends of plate.There are four support base fixation holes 16, support base 13 to pass through solid across support base for setting on bottom plate 14
The screw and nut for determining hole 16 are fixed on bottom plate 14.Two 13 bottom surfaces of support base are seated two longitudinal directions of main support 1
It is fixed on steel pipe and with longitudinal steel-pipe welding, support base 13 is supported entire power device 2.
Upper mounted plate 12 and bottom plate 14 the position inner relative to long fixed optical axis fixation hole 15 respectively correspondingly
Setting is equipped with linear bearing 22 on linear bearing fixation hole 17 there are four linear bearing fixation hole 17.Four pieces are vertically arranged
Removable straight optical axis 4 sequentially passes through the linear bearing 22 for being mounted on upper mounted plate 12 and bottom plate 14 from top to bottom, thus
Guarantee to provide vertical electric pushrod 3, pull pressure sensor 9 and the linear motion for controlling torque portions in vertical power section.
Four removable 4 bottoms of straight optical axis are fixedly connected on lower shifting board 20, and lower shifting board 20 can be made with removable straight optical axis 4
Linear motion up and down, move distance are the stroke of vertical electric pushrod 3.
Upper shifting board 19 is arranged between upper mounted plate 12 and bottom plate 14, and lower shifting board 20 is arranged in bottom plate 14
Lower section offers the centre bore 18 of rectangle in the middle part of bottom plate 14.Upper shifting board 19 and lower shifting board 20 are parallel to each other and are
Horizontally disposed, upper shifting board 19 and lower shifting board 20 are connected by passing through the four short fixed optical axis 7 of centre bore 18.Lower shifting board
20 can not pass through the centre bore 18 of bottom plate 14, be always positioned at 14 lower section of bottom plate.
There is provided vertical power section includes vertical servo motor 5, vertical electric pushrod 3 and pull pressure sensor 9, is vertically watched
Taking motor 5 and being capable of providing pressure is 1.5t, and vertical 3 range of electric pushrod control is in 1m, the range of pull pressure sensor 9
For 2t.Vertical servo motor 5 is mounted on 12 top of upper mounted plate, delivers power to vertical electric pushrod 3 by crawler belt, so as to
Control the lifting of vertical electric pushrod 3.Vertical electric pushrod 3 is installed on upper mounted plate 12, and its push rod bottom end passes through upper fixation
Plate 12.Pull pressure sensor 9 is arranged below upper mounted plate 12, and upper part is connected by flange with vertical 3 bottom of electric pushrod
It connects, its underpart is connected by flange with 19 upper surface of upper shifting board.
Controlling torque portions includes torque servo motor 8, torque sensor 10 and torque support axis 21, torque servo motor
8 are capable of providing the torque of 400Nm, and torque sensor 10 can measure the torque of 400Nm.The setting of torque servo motor 8 is moving up
Between movable plate 19 and lower shifting board 20, the upper end by flanged joint in 19 lower surface of upper shifting board, lower end by flange with
The upper end of torque sensor 10 connects.Torque sensor 10 is arranged below lower shifting board 20, and 10 upper end of torque sensor passes through
Flange is connect with torque servo motor 8, and lower end is by flanged joint on the top of screw pile 11.The method on 10 top of torque sensor
It is supported between the blue and flange of lower part by four torque support axis 21, is guaranteed for bearing due to the vertical counter-force of soil body bring
Torque sensor 10 is only by twisting force.
Vertical electric pushrod 3, pull pressure sensor 9, torque sensor 10 and 11 coaxial line of screw pile, and upper mounted plate
12, bottom plate 14, the removable straight optical axis 4 of the support base 13, four of four root long fixed optical axis 6, two, upper shifting board 19,
The line of symmetry of 20, four short fixed optical axis 7 of lower shifting board and four torque support axis 21 with 11 coaxial line of screw pile, four
The axis and spiral of the removable straight optical axis of long fixed optical axis 6, four 4, four short fixed optical axis 7 and four torque support axis 21
11 axis of stake are parallel, and upper mounted plate 12, bottom plate 14, upper shifting board 19, lower shifting board 20 are sitting in 11 axis of plane and screw pile
Line is vertical.
Vertical servo motor 5 and torque servo motor 8 are controlled by PCL, PCL coordination vertical velocity and reverse speed it
Between ratio, guarantee 11 installation process of screw pile in reverse speed and decrease speed carry out according to a certain percentage, to make
Screw pile 11 is obtained smoothly to be installed in place.Screw pile 11 stops torsion after being installed in place, by fixed vertical load come hierarchical loading
Measure the vertical bearing capacity of 11 pile foundation of screw pile.
As shown in figure 5, horizontal loading apparatus includes horizontal bracket 23 and horizontal direction electric pushrod 24, horizontal bracket 23 is with it
Top is fixedly installed in main support 1, and horizontal direction electric pushrod 24 is mounted on 23 bottom of horizontal bracket.Electric pushrod 24 and screw pile
11 is vertical, and electric pushrod 24 controls power output by regulated power supply, applies horizontal thrust to screw pile 11 from horizontal direction.
As in Figure 6-1,24 front end of horizontal direction electric pushrod is provided with a horizontal anchor ear 25, and the horizontal anchor ear 25 is in half
Circular ring shape, thus can be stuck in outside screw pile 11, so that horizontal thrust provided by horizontal direction electric pushrod 24 is uniform
It is applied on screw pile 11.24 tail end of horizontal direction electric pushrod is fixedly connected with a horizontal position control panel 26, the horizontal position
The axis perpendicular of control panel 26 and horizontal direction electric pushrod 24.The four corners of horizontal position control panel 26 offer spiral shell in advance
Hole, the screw hole are coated with screw and by screw connection in 23 lower part of horizontal bracket.
As in fig. 6-2, horizontal bracket 23 is welded by channel steel, including the upright bar parallel with screw pile 11, upright bar top
Portion side is provided with rectangular frame structure, that is to say, that the centre bit of one long side of rectangular frame structure is welded at the top of upright bar
It sets, between the center and upright bar lower part of another long side of rectangular frame structure (parallel with the long side welded at the top of upright bar)
It is welded with a diagonal brace, prevents upright bar from deforming with control moment.There are two be parallel to each other for the upright bar lower part setting of horizontal bracket 23
The vertical chute 27, by passing through 26 four corners screw hole of horizontal position control panel and can be with also cross the screw of the vertical chute 27
Horizontal position control panel 26 is adjusted in the relative position of the upright bar lower part of horizontal bracket 23, so that horizontal direction electric pushrod 24
Height the suitable position of screw pile 11 is set, horizontal position control panel 26 can be made by being tightened again by nut after adjusting in place
And horizontal direction electric pushrod 24 is fixed on a certain position of the upright bar lower part of horizontal bracket 23.Rectangular frame structure upper surface quadrangle
Place is respectively arranged with screw hole, and the screw rod being vertically arranged 28 is equipped in each screw hole；Every two screw rod 28 is one group in spiral shell
A fixed beam 29 is fixedly connected with by nut at the top of bar 28, two fixed beams 29 are respectively parallel to the two of rectangular frame structure
Long side.When horizontal bracket 23 is connect with main support 1, two fixed beams 29 ride upon two perpendicular to longitudinal steel pipe of main support 1
On the steel pipe of root longitudinal direction, the both ends of two fixed beams 29 stretch out in two longitudinal steel pipes of main support 1 and connect water by screw rod 28
The rectangular frame structure of flat bracket 23, to enable horizontal bracket 23 to adjust the position on main support 1 and adjust in place
After fix.
Screw pile installation and combined loading test device of the invention, installation and test process are as follows:
Main support 1 is pre-installed on the experimental tank of 4m*4m, and then power device 2 is mounted on main support 1 and is incited somebody to action
Support base 13 and main support 1 weld to further fix the two.The screw pile 11 of required experiment is passed through into flange and bolt
It is connect with the torque sensor 10 of device lower end, vertical servo motor 5 is controlled simultaneously by PCL after the completion of connection and torque is watched
Take motor 8.
Upper mounted plate 12, bottom plate 14 and 6 holding position of long fixed optical axis between the two are constant, vertical servo electricity
Machine 5 drive electric pushrod 3 move downward, electric pushrod 3 drive pull pressure sensor 9, upper shifting board 19, short fixed optical axis 7, under
Straight line declines together for movable plate 20, removable straight optical axis 4, torque servo motor 8, torque sensor 10, torque support axis 21,
Decrease speed is controlled by vertical servo motor 5, while torque servo motor 8 controls rotation speed of the screw pile 11 during decline
Degree, to smoothly complete the installation of screw pile.In the installation process of screw pile 11, the test of pull pressure sensor 9 was installed
In journey the soil body provide counter-force size and by data acquisition device export, torque sensor 10 test installation process needed for torsion
Square size is simultaneously exported by data acquisition device.
After completing installment work, torque sensor 10 stops providing further torque, only by vertical servo electricity
Machine 5 applies vertical load or controls vertical velocity to measure the vertical bearing capacity of screw pile 11, and the measurement of pull pressure sensor 9 is perpendicular
It is exported to load provided by servo motor 5 and by data acquisition device.
After completing installment work, horizontal bracket 23 is fixed on by the suitable of main support 1 by screw rod 28 and fixed beam 29
Position is to bear horizontal reacting force, after the vertical position that horizontal direction electric pushrod 24 is adjusted by horizontal position control panel 26, leads to
It crosses and is fixed on the horizontal direction electric pushrod 24 of 23 lower part of horizontal bracket to apply horizontal loading, complete the horizontal bearing of screw pile 11
Power test.
In addition to this, vertical force, water can also be applied simultaneously according to the difference of test requirements document after completing installment work
Flat power and torque carry out combined loading test.
Although the preferred embodiment of the present invention is described above in conjunction with attached drawing, the invention is not limited to upper
The specific embodiment stated, the above mentioned embodiment is only schematical, be not it is restrictive, this field it is common
Technical staff under the inspiration of the present invention, can be with when not departing from invention objective and scope of the claimed protection
The specific transformation of many forms is made, within these are all belonged to the scope of protection of the present invention.
Claims (8)
1. a kind of screw pile installation and combined loading test device, which is characterized in that by setting up main support and peace on experimental tank
Power device and horizontal loading apparatus on main support are constituted；
The power device includes the upper mounted plate and bottom plate connected by four root long fixed optical axis, upper mounted plate and lower solid
Fixed board is equipped with four removable straight optical axis being vertically arranged by linear bearing, and four removable straight optical axis are by upper
Upper mounted plate and bottom plate are sequentially passed through under, and bottom end is fixedly connected with lower shifting board；The lower shifting board is arranged in institute
It states below bottom plate, offers centre bore in the middle part of the bottom plate, the lower shifting board is by passing through four of centre bore
The short fixed optical axis being vertically arranged is connected with upper shifting board, and the upper shifting board is arranged in fixed plate and the lower fixation
Between plate；
Fixed plate is equipped with vertical servo motor and electric pushrod, and the vertical servo motor is that the electric pushrod mentions
For power, the electric pushrod bottom end passes through fixed plate and has pull pressure sensor, the tension and compression by flanged joint
Force snesor lower part is by flanged joint in the upper shifting board upper surface；
There is torque servo motor in the upper shifting board lower end surface by flanged joint, and torque servo motor lower end passes through flange
It is connected with torque sensor, the torque sensor lower end passes through flanged joint at the top of screw pile, the torque sensor
It is supported between the flange on top and the flange of lower part by four torque support axis；The torque servo motor setting is moved down described
Above movable plate, the torque sensor is arranged below the lower shifting board；
The vertical servo motor and the torque servo motor pass through PCL control, and PCL is for coordinating screw pile installation process
Described in ratio between the reverse speed that provides of the vertical servo motor vertical velocity provided and the torque servo motor, and
Stop the torque servo motor after screw pile is installed in place, the perpendicular of the screw pile is measured by the vertical servo motor
To bearing capacity；
The horizontal loading apparatus includes the horizontal bracket being mounted on the main support with its top, the horizontal bracket bottom
It is provided with horizontal direction electric pushrod, the horizontal direction electric pushrod is used to apply horizontal thrust to the screw pile.
2. a kind of screw pile installation according to claim 1 and combined loading test device, which is characterized in that the main branch
Frame includes two longitudinal steel pipes, and the multiple lateral steel pipes being equidistantly spaced are welded between two longitudinal steel pipes.
3. a kind of screw pile installation according to claim 1 and combined loading test device, which is characterized in that described lower solid
Fixed board bottom surface is fixed with support base, and support base is seated the main support and is welded and fixed with the main support.
4. a kind of screw pile installation according to claim 1 and combined loading test device, which is characterized in that described vertical
Servo motor provides the pressure of 1-2.5t, and the stroke of the electric pushrod is 0-1m, and the range of the pull pressure sensor is
0-2t, the torque servo motor provide the torque of 0-400Nm, and the measurement torque range of the torque sensor is 0-400Nm.
5. a kind of screw pile installation according to claim 1 and combined loading test device, which is characterized in that the level
The horizontal anchor ear an of semi-circular shape is provided with to electric pushrod front end, the horizontal anchor ear is stuck in outside the screw pile, is used
In horizontal thrust provided by the horizontal direction electric pushrod is uniformly applied to screw pile.
6. a kind of screw pile installation according to claim 1 and combined loading test device, which is characterized in that the level
It is fixedly connected with horizontal position control panel to electric pushrod tail end, the horizontal position control panel is preset with screw hole；The level
There are two the vertical chutes for the setting of bracket lower part；Also cross the screw hole and the horizontal bracket on the horizontal position control panel
The horizontal direction electric pushrod after adjusting vertical position is fixed on the horizontal branch by the screw attaching nut of the vertical chute
Frame.
7. a kind of screw pile installation according to claim 1 and combined loading test device, which is characterized in that the level
Bracket includes rectangular frame structure, is respectively welded upright bar and diagonal brace in the middle part of two parallel edges of the rectangular frame structure, institute
It states upright bar to be vertically arranged, the diagonal brace lower end is welded in the upright bar lower part.
8. a kind of screw pile installation according to claim 1 and combined loading test device, which is characterized in that the level
Cradle top is connected with two fixed beams by screw rod and nut, and two fixed beams are erected on the main support, will adjust
The horizontal bracket behind horizontal position is fixed on the main support.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710724514.5A CN107655662B (en) | 2017-08-22 | 2017-08-22 | A kind of installation of screw pile and combined loading test device |
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| CN201710724514.5A CN107655662B (en) | 2017-08-22 | 2017-08-22 | A kind of installation of screw pile and combined loading test device |
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| CN107655662B true CN107655662B (en) | 2019-06-28 |
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| CN114778806B (en) * | 2022-04-13 | 2023-11-14 | 国网江苏省电力有限公司连云港供电分公司 | Model test device of slip casting formula screw pile |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002286625A (en) * | 2001-03-28 | 2002-10-03 | Nippon Steel Corp | Method for execution and loading test in model sand ground, device therefor, and ground creating method |
| CN103149091A (en) * | 2013-02-26 | 2013-06-12 | 吉林建筑工程学院 | Anti-pulling vertical tension loading test device of building pile |
| CN103510551A (en) * | 2013-09-18 | 2014-01-15 | 中交公路长大桥建设国家工程研究中心有限公司 | Three-directional static and dynamic loading model test platform for deep water foundations of bridges |
| CN103953079A (en) * | 2014-05-20 | 2014-07-30 | 武汉大学 | Single pile bearing mechanical and physical model test device based on CT (computed tomography) scanning |
| CN204128785U (en) * | 2014-06-30 | 2015-01-28 | 广东保威新能源有限公司 | A kind of spiral ground pile pull-out test device |
| CN104631519A (en) * | 2015-01-13 | 2015-05-20 | 河海大学 | Pile foundation bearing characteristic model test device and method under complicated load effect |
-
2017
- 2017-08-22 CN CN201710724514.5A patent/CN107655662B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002286625A (en) * | 2001-03-28 | 2002-10-03 | Nippon Steel Corp | Method for execution and loading test in model sand ground, device therefor, and ground creating method |
| CN103149091A (en) * | 2013-02-26 | 2013-06-12 | 吉林建筑工程学院 | Anti-pulling vertical tension loading test device of building pile |
| CN103510551A (en) * | 2013-09-18 | 2014-01-15 | 中交公路长大桥建设国家工程研究中心有限公司 | Three-directional static and dynamic loading model test platform for deep water foundations of bridges |
| CN103953079A (en) * | 2014-05-20 | 2014-07-30 | 武汉大学 | Single pile bearing mechanical and physical model test device based on CT (computed tomography) scanning |
| CN204128785U (en) * | 2014-06-30 | 2015-01-28 | 广东保威新能源有限公司 | A kind of spiral ground pile pull-out test device |
| CN104631519A (en) * | 2015-01-13 | 2015-05-20 | 河海大学 | Pile foundation bearing characteristic model test device and method under complicated load effect |
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