CN108385736A - Passage formula clinoform model foundation level load test device - Google Patents
Passage formula clinoform model foundation level load test device Download PDFInfo
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- CN108385736A CN108385736A CN201810006380.8A CN201810006380A CN108385736A CN 108385736 A CN108385736 A CN 108385736A CN 201810006380 A CN201810006380 A CN 201810006380A CN 108385736 A CN108385736 A CN 108385736A
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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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- Mining & Mineral Resources (AREA)
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- General Engineering & Computer Science (AREA)
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a kind of passage formula clinoform model foundation level load test devices, including model frame, sloped ground, bracket, jack, U-shaped transfer beam and model basis, sloped ground is filled in model frame, and model basis bottom end is filled to the slope surface of sloped ground；Bracket is arranged close to the model outer frame side of sloped ground slope surface higher end, and jack is horizontally arranged in bracket, and the piston of jack is towards model frame；The both ends of U-shaped transfer beam open side are connect with the piston on the top on model basis and jack respectively, and U-shaped transfer beam by jack and model basis across being crossed on model in-out-snap both sides.The present invention realizes the self-balancing of horizontal addload (U-shaped transfer beam) under conditions of without increasing counter-force attachment；Horizontal addload is not damaged and is disturbed to sloped ground landform in assembly, loading procedure；Main influence area is tested on front side of basis, convenient for carrying out photologging to it；It is height-adjustable to the load on model basis.
Description
Technical field
The invention belongs to foundation base model test devices, and the present invention relates to a kind of clinoform model foundation level load
Experimental rig designs.
Background technology
In the prior art, the linear engineering of the big region span such as work China Democratic National Construction Association industry, especially railway, highway, transmission line of electricity,
Existence foundation is located at the situation on slope, and basic direction of fall Its ultimate bearing capacity often becomes design control in this case
Condition.Sloped ground real model experiment is optimal research means, but its is costly, the period is long, boundary condition is uppity
Drawback limits it and popularizes, therefore model test becomes the important supplement means of research sloped ground basis bearer properties.
Currently, horizontal foundation foundation level loading structure has towed and 2 class of passage formula.Trail-type horizontal addload structure
In front of basis；And the horizontal addload structure of formula is elapsed at basic rear.Towed under normal circumstances and passage formula horizontal addload
It, can not be straight under the conditions of not destroying or disturbing original ground for the linear structure of the horizontal force transferring structure of experimental basis-- counter-force attachment
It scoops out and is used for clinoform foundation level loading test.
Current horizontal loading apparatus has a disadvantage that：1) horizontal loading apparatus can not self-balancing, i.e., must additionally increase anti-
Power attachment realizes the horizontal addload to subjects；2) horizontal loading apparatus has destruction or disturbance to slope initial land form；3) water
Flat loading device has an impact the main coverage in ground-basis.Therefore, it is necessary to carry out the innovation of structural shape.To improve
The loading test of sloped ground model foundation level is horizontal.
Invention content
Disadvantage in for the above-mentioned prior art and deficiency can be restored highly really the purpose of the present invention is to provide a kind of
The experimental rig of clinoform horizontal load ability in environment.
The purpose of the present invention is what is be achieved through the following technical solutions：
A kind of passage formula clinoform model foundation level load test device, including model frame, sloped ground, bracket,
Jack, U-shaped transfer beam and model basis, the sloped ground is filled in model frame, model basis bottom end fill to
In the slope surface of sloped ground；The bracket is arranged close to the model outer frame side of sloped ground slope surface higher end, described very heavy
Top is horizontally arranged in bracket, and the piston of jack is towards model frame；The both ends of the U-shaped transfer beam open side respectively with model
The top on basis is fixedly connected with the piston of jack, and U-shaped transfer beam by jack and model basis across being crossed on model frame
Inside and outside.
Preferably, further include hanging the crossbeam being arranged on model frame, crossbeam center face model basis, at crossbeam center
Both sides are provided with displacement sensor；It is corresponding that displacement catch, the displacement are separately installed with by cantilever in model basis both sides
The probe tip face face displacement catch of sensor.
Preferably, further include the pressure sensor being arranged between jack and bracket.
Preferably, further include camera, the camera suspension is mounted on model frame, the camera face slope of the camera
The lower one end of ground slope surface.
Preferably, the U-shaped transfer beam is arranged with the cantilever that one end that model basis connects is corresponding model basis both sides
Steel plate, the position of the steel plate face cantilever is provided with card slot, and the card slot is stuck on cantilever.
Preferably, further include circumferential band, the circumferential band hoop protrudes from the position of sloped ground or more on model basis.
Preferably, the bracket is mounted on by bolt on model frame, and multiple screw threads are vertically provided on model frame
Hole.
Preferably, two cantilever Screw assemblies are in circumferential band.
Preferably, the bracket includes the frame and bottom panel of surrounding, and the U-shaped transfer beam is located at one end end in bracket
Roller bearing is installed on face；The piston of the jack is abutted with the side of U-shaped transfer beam.
Compared with prior art, the embodiment of the present invention has at least the following advantages：
(1) to the measurement of load-displacement；
The measurement to model horizontal displacement of foundation is realized by the displacement sensor being arranged symmetrically, while avoiding foundation torsion
Caused error；The measurement to horizontal loading suffered by model basis is realized by pressure sensor.
(2) horizontal loading apparatus self-balancing
On the one hand very heavy ejecting force passes to experiment frame by bracket, on the other hand pass through U-shaped transfer beam, cantilever and ring-like
Hoop is transferred to model basis, to which under conditions of without increasing counter-force attachment, horizontal loading apparatus realizes self-balancing；
(3) destruction (disturbance) to primitively base shape is avoided；
U-shaped transfer beam realizes passage formula horizontal loading apparatus to not the destroying of sloped ground landform, do not disturb.
(4) the unobstructed of main influence area is tested, observation is facilitated；
Main influence area is tested on front side of basis, carries out photologging to it for ease of camera, top is answered unobstructed
Object.And the structure for elapsing formula horizontal loading apparatus, to test the unobstructed of main influence area, facilitates sight on rear side of basis
It examines；
(5) load height is adjustable
In bracket side, bracket is bolted on the wall surface of experiment frame, passes through the several of the wall surface in experiment frame
The adjusting of bracket height may be implemented in height prepared screw-bolt hole；In model basis side, ring-like hoop assembly is height-adjustable.Pass through
The synchronous adjustment of ring-like hoop and bracket realizes the adjusting for loading height to model basis under the conditions of not changing substrate absolute altitude.
Description of the drawings
Fig. 1 is the structural schematic diagram of passage formula clinoform model foundation level load test device of the present invention.
Specific implementation mode
With reference to embodiment and its attached drawing, the invention will be further described, following embodiment be it is descriptive, no
It is restrictive, protection scope of the present invention cannot be limited with this.
A kind of basic 3 horizontal static-load experiment devices of passage formula clinoform model, including model frame 1, sloped ground 2, support
Slot 10, jack 11, U-shaped transfer beam 9 and model basis 3, the sloped ground 2 are filled in model frame 1, the model basis
3 bottom ends are filled to the slope surface of sloped ground 2；The bracket 10 is arranged close to the model of 2 slope surface higher end of sloped ground
The outside of frame 1, the jack 11 are horizontally arranged in bracket 10, and the piston of jack 11 is towards model frame 1；The U-shaped power transmission
The both ends of 9 open side of beam are fixedly connected with the piston on the top on model basis 3 and jack 11 respectively, and U-shaped transfer beam 9 is across passing through
Jack 11 and model basis 3 are crossed on inside and outside model frame 1.
Further include the crossbeam 8 that suspension is arranged on model frame 1,8 center face model basis 3 of crossbeam, at 8 center two of crossbeam
Side is provided with displacement sensor 7；It is corresponding that displacement catch 6, institute's rheme are separately installed with by cantilever 5 in model basic 3 both sides
The probe tip face face displacement catch 6 of displacement sensor 7.
It further include the pressure sensor 12 being arranged between jack 11 and bracket 10.When it is implemented, pressure sensor
12 can external pressure numeroscope, likewise, displacement sensor 7 also can directly displacement numeroscope facilitate reading.Also front end can be adopted
The pressure sensor 12 and displacement sensor 7 for collecting data are directly connect with computer, are carried out by the corresponding program on computer
The finishing analysis of data.
Further include camera 13, the suspension of the camera 13 is mounted on model frame 1, the camera face slope of the camera 13
The lower one end of 2 slope surface of ground.
The steel that the U-shaped transfer beam 9 is arranged with the cantilever 5 that one end of 3 connection of model basis is basic 3 both sides of corresponding model
The position of plate, the steel plate face cantilever 5 is provided with card slot, and the card slot is stuck on cantilever 5.
Further include circumferential band 4, the hoop of the circumferential band 4 protrudes from the position of 2 or more sloped ground on model basis 3.
The bracket 10 is mounted on by bolt on model frame 1, and multiple threaded holes are vertically provided on model frame 1.
Two 5 Screw assemblies of cantilever are in circumferential band 4.
The bracket 10 includes the frame and bottom panel of surrounding, and the U-shaped transfer beam 9 is located at one end end face in bracket 10
On roller bearing is installed；The piston of the jack 11 is abutted with the side of U-shaped transfer beam 9.U-shaped transfer beam 9 is located in bracket 10
10 bottom panel of end face and bracket between padded by roller bearing, with achieve the effect that reduce both sliding-frictional resistance.
Experimental rig set-up procedure：
1., then will be oblique into model frame 1 according to landfill depth of the practical basis on clinoform as substrate absolute altitude
2 cubic metres of earth of hillside fields base is filled to the basic 3 substrate absolute altitudes of model；
2. adjusting horizontal position and the verticality on model basis 3；
3. actual slope soil layering situation 2 cubic metres of earth of placement in layers sloped ground into model frame 1 are pressed, until sloped ground 2
Top surface designed elevation；
4. ramping ground 2 fills the redundancy section of process generation, sloped ground 2 is molded；
5. installing circumferential band 4 and bracket 10 on model basis 3 to designed elevation, make output axis, the mould of jack 11
Type 3 axis of basis and 5 axis three of cantilever are mutually orthogonal；
6. placing U-shaped transfer beam 9, U-shaped transfer beam 9 is opening down, and the one end for being provided with roller bearing is placed in bracket 10, separately
One end is stuck in by card slot on the cantilever 5 of basic 3 both sides of model；
7. jack 11, pressure sensor 12, crossbeam 8, displacement sensor 7 and camera 13 (14) is arranged in opsition dependent.
The experiment process of this experimental rig：
1. being pressurizeed to 11 fuel feeding of jack by external discharge oil pump station；On the one hand jack 11 is contributed to be passed by bracket 10
Model frame 1 is passed, cantilever 5 is on the other hand transferred to by U-shaped transfer beam 9.
2. the output of jack 11 will be passed to model basis 3 by 5 one side of cantilever by circumferential band 4, horizontal force is realized
Self-balancing；On the other hand basic 3 displacements of model are led into displacement catch 6, displacement catch 6 is as basic 3 displacement measurements of model
Datum mark.
It is installed 3. the displacement sensor 7 for corresponding to two displacement catch 6 is hung by crossbeam 8, two displacement catch 6 of face,
It is used as basic 3 displacements of model by the displacement measurement to displacement catch 6.
4. jack 11 is contributed, (or horizontal loading suffered by model basis 3) is measured by pressure sensor 12.
5. the image recording of the main coverage of horizontal loading test is measured by camera 13.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, the change or replacement that can be readily occurred in,
It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of claims
Subject to enclosing.
Claims (9)
1. a kind of passage formula clinoform model foundation level load test device, which is characterized in that including model frame, slope land
Base, bracket, jack, U-shaped transfer beam and model basis, the sloped ground are filled in model frame, model basis bottom
On the landfill to the slope surface of sloped ground of end；The bracket is arranged close to the model outer frame side of sloped ground slope surface higher end,
The jack is horizontally arranged in bracket, and the piston of jack is towards model frame；The both ends of the U-shaped transfer beam open side point
It is not connect with the piston on the top on model basis and jack, U-shaped transfer beam by jack and model basis across being crossed on mould
Type in-out-snap both sides.
2. passage formula clinoform model foundation level load test device according to claim 1, which is characterized in that also
Including hanging the crossbeam being arranged on model frame, face model basis in crossbeam center is provided with displacement in crossbeam center both sides and passes
Sensor；It is corresponding that displacement catch, the probe tip face of institute's displacement sensors are separately installed with by cantilever in model basis both sides
Face displacement catch.
3. passage formula clinoform model foundation level load test device according to claim 1, which is characterized in that also
Including the pressure sensor being arranged between jack and bracket.
4. passage formula clinoform model foundation level load test device according to any one of claim 1-3,
It is characterized in that, further includes camera, the camera suspension is mounted on model frame, the camera face sloped ground slope of the camera
The lower one end in face.
5. passage formula clinoform model foundation level load test device according to claim 1, which is characterized in that institute
State U-shaped transfer beam and the steel plate for the cantilever setting that one end that model basis connects is corresponding model basis both sides, the steel plate is just
Card slot is provided with to the position of cantilever, the card slot is stuck on cantilever.
6. passage formula clinoform model foundation level load test device according to claim 5, which is characterized in that also
Including circumferential band, the circumferential band hoop protrudes from the position of sloped ground or more on model basis.
7. passage formula clinoform model foundation level load test device according to claim 6, which is characterized in that institute
It states bracket to be mounted on model frame by bolt, multiple threaded holes is vertically provided on model frame.
8. passage formula clinoform model foundation level load test device according to claim 7, which is characterized in that two
Root cantilever Screw assembly is in circumferential band.
9. passage formula clinoform model foundation level load test device according to claim 1, which is characterized in that institute
The frame and bottom panel that bracket includes surrounding are stated, roller bearing is installed on one end end face that the U-shaped transfer beam is located in bracket；Institute
The piston for stating jack is abutted with the side of U-shaped transfer beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810006380.8A CN108385736B (en) | 2018-01-04 | 2018-01-04 | Passage formula clinoform model foundation level load test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810006380.8A CN108385736B (en) | 2018-01-04 | 2018-01-04 | Passage formula clinoform model foundation level load test device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108385736A true CN108385736A (en) | 2018-08-10 |
| CN108385736B CN108385736B (en) | 2019-10-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810006380.8A Expired - Fee Related CN108385736B (en) | 2018-01-04 | 2018-01-04 | Passage formula clinoform model foundation level load test device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110284531A (en) * | 2019-05-17 | 2019-09-27 | 长安大学 | Oblique Steep Slope Bridge pile foundation lateral bearing capacity correction factor and bearing capacity computation method |
| CN114892731A (en) * | 2022-05-30 | 2022-08-12 | 合肥工业大学 | Power transmission line tower foundation drawing test system considering cliff and slope terrain |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011102527A (en) * | 2009-10-13 | 2011-05-26 | Japan Pile Corp | Horizontal load testing method of pile |
| CN202351126U (en) * | 2011-11-24 | 2012-07-25 | 清华大学 | Lateral limiting device for steel structure pressed component loading test |
| CN103217348A (en) * | 2013-04-12 | 2013-07-24 | 同济大学 | Testing device for simulating mechanical behaviors of gravel soil subgrade under reciprocating traffic moving load |
| CN206189478U (en) * | 2016-10-31 | 2017-05-24 | 武汉科技大学 | Horizontal pile foundation single pile horizontal load test device |
| CN206591549U (en) * | 2017-02-28 | 2017-10-27 | 中交武汉港湾工程设计研究院有限公司 | A kind of steel-pipe pile horizontal cyclic experimental provision of simulated waves load |
-
2018
- 2018-01-04 CN CN201810006380.8A patent/CN108385736B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011102527A (en) * | 2009-10-13 | 2011-05-26 | Japan Pile Corp | Horizontal load testing method of pile |
| CN202351126U (en) * | 2011-11-24 | 2012-07-25 | 清华大学 | Lateral limiting device for steel structure pressed component loading test |
| CN103217348A (en) * | 2013-04-12 | 2013-07-24 | 同济大学 | Testing device for simulating mechanical behaviors of gravel soil subgrade under reciprocating traffic moving load |
| CN206189478U (en) * | 2016-10-31 | 2017-05-24 | 武汉科技大学 | Horizontal pile foundation single pile horizontal load test device |
| CN206591549U (en) * | 2017-02-28 | 2017-10-27 | 中交武汉港湾工程设计研究院有限公司 | A kind of steel-pipe pile horizontal cyclic experimental provision of simulated waves load |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110284531A (en) * | 2019-05-17 | 2019-09-27 | 长安大学 | Oblique Steep Slope Bridge pile foundation lateral bearing capacity correction factor and bearing capacity computation method |
| CN114892731A (en) * | 2022-05-30 | 2022-08-12 | 合肥工业大学 | Power transmission line tower foundation drawing test system considering cliff and slope terrain |
| CN114892731B (en) * | 2022-05-30 | 2024-02-13 | 合肥工业大学 | Transmission line tower foundation drawing test system considering facing cliff and slope topography |
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|---|---|
| CN108385736B (en) | 2019-10-15 |
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Granted publication date: 20191015 Termination date: 20220104 |