CN207764102U - Halfbody anchor structure stress and deformation field synchronous test system - Google Patents
Halfbody anchor structure stress and deformation field synchronous test system Download PDFInfo
- Publication number
- CN207764102U CN207764102U CN201820041287.6U CN201820041287U CN207764102U CN 207764102 U CN207764102 U CN 207764102U CN 201820041287 U CN201820041287 U CN 201820041287U CN 207764102 U CN207764102 U CN 207764102U
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- anchor
- halfbody
- anchor structure
- internal baffle
- baffle
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Abstract
The utility model discloses a kind of halfbody anchor structure stress and deformation field synchronous test system, are related to anchor structure technical field of measurement and test.Its test system includes test device for fixing the load fixing device of halfbody anchor structure, being monitored to halfbody anchor structure and carries out the pull-out test machine of pull-out test to halfbody anchor structure.Wherein, it is semi-cylindrical shell that load fixing device, which further includes use the temporarily border tube, border tube for being useful for preparing the internal baffle of halfbody anchor structure, division anchoring matrix and Anchor Agent,.By the coaxial position-limiting tube one of setting and position-limiting tube two at two center of upper beam one and lower beam of load fixing device respectively, phenomena such as ensure that anchor pole along halfbody anchor structure axial direction drawing, prevent from tilting, tilting due to anchor pole caused by eccentric drawing.The utility model realizes anchor structure deformation field and stress synchronism detection, improves the comprehensive of anchor mechanism data acquisition.
Description
Technical field
The utility model is related to anchor structure technical field of measurement and test, and in particular to a kind of halfbody anchor structure stress and deformation
Field synchronization tests system.
Background technology
Anchorage technology is a kind of effective roadway surrounding rock Reinforced Supporting Technology, in engineerings such as mine, water conservancy, tunnel, ground
In be widely used.But due to the property complicated and changeable of roadway surrounding rock condition, anchorage effect mechanism not yet forms system
Theoretical system, insufficient to the quantitative guidance of tunnel anchoring support design, the roof accident caused by fastening invalidation is at home
There is generation more.Engineering accident and laboratory test show that the destruction of anchor structure body appears at greatly on anchoring interface, therefore anchor
Interface is an emphasis for studying anchor mechanism.At this stage, domestic and foreign scholars have carried out a large amount of reasons to anchoring interfacial stress distribution
By and analysis of experiments, obtained many significant achievements in research, but then to country rock body Deformation Characteristics Study near anchoring interface
Relatively fewer, main cause is that anchor structure body internal interface is not visible.
For anchoring interface deformation visual inspection problem, many scholars mostly use slice half of anchor structure body of preparation
Method is observed analysis, but due to lacking special test device, achievement in research is less, and is concentrated mainly on soil layer anchoring body
Interface deformation is analyzed, and such as application No. is in 201610070116.1 and 201610071187.3 patent, discloses a kind of soil layer
Anchoring body visual test device, experimental rig can fail to anchoring body interfacial stress transport mechanism in soil layer and interface deformation
Rule is tested, but there is eccentric drawing, the inclined possibility of the body of rod during the experimental rig anchor rod drawing, influences experiment knot
The accuracy of fruit, and the experimental rig is not suitable for carrying out the rock bolting configuration test under high intensity drawing load.Therefore, having must
Develop a kind of test system for the research of rock bolting configuration interface deformation.
Utility model content
The purpose of this utility model is to provide a kind of halfbody anchor structure stress and deformation field synchronous test system, with reality
Surrouding rock deformation field and anchor stress synchronism detection during existing anchor structure pull-out test.
Its technical solution includes：
A kind of halfbody anchor structure stress and deformation field synchronous test system comprising be used to prepare and fix the halfbody
The load fixing device of anchor structure, the test device being monitored to the halfbody anchor structure and being anchored to the halfbody is tied
Structure carries out the pull-out test machine of pull-out test, and the load fixing device includes fixed cylinder, preposition baffle one, preposition baffle
Two, internal baffle one, internal baffle two and pedestal, the fixed cylinder is the vertical cabinet that a section is semicircle shape, described
Semi arch both ends at the top and bottom of fixed cylinder are mounted on crossbeam, are respectively located at the crossbeam one of top surface and are located at bottom
The crossbeam two in face, the crossbeam one and crossbeam two are mutually parallel；The preposition baffle one, preposition baffle two are separately positioned on described
Upper zone in fixed cylinder and middle and lower part region, with the preposition baffle one, the fixed cylinder of two junction of preposition baffle
A card slot is respectively arranged in the inner wall of body, and the internal baffle one, internal baffle two, the internal baffle are installed in the card slot
One, a semicircle orifice, aperture and direct of the anchor pole in halfbody anchor structure of the semicircle orifice are both provided in internal baffle two
Match；
The load fixing device further includes having position-limiting tube one, position-limiting tube two and for dividing in the halfbody anchor structure
The border tube of matrix and Anchor Agent is anchored, the position-limiting tube one, position-limiting tube two are separately positioned on the crossbeam one and crossbeam two
At center；The border tube is semi-cylindrical shell, and the both ends of the shell are connected to the internal baffle one and internal baffle
On two；The position-limiting tube one, position-limiting tube two inner wall on be provided with several balls, the anchor pole in the halfbody anchor structure and institute
The ball stated in position-limiting tube one, position-limiting tube two is in direct contact；
When preparing the halfbody anchor structure, in the fixed cylinder, internal baffle one, internal baffle two and border tube
Between the regional space that is formed prepare anchoring matrix；Between the internal baffle one, internal baffle two, anchoring matrix and anchor pole
Anchor Agent is perfused in the regional space of formation；
The test device includes deformeter, displacement sensor, imager and computer, and the deformeter is for monitoring anchor
Axial strain at bar different location；Institute's displacement sensors are mounted on the crossbeam one, the drawing for monitoring the anchor pole
Pull out displacement；The right opposite in the halfbody anchor structure is arranged in the imager, and knot is anchored for monitoring in anchor rod drawing experiment
The evolutionary process of structure surface deformation field；The computer is used for monitoring obtained by the deformeter, displacement sensor and imager
Data are stored and are handled；
The upper grip of the pull-out test machine is clamped with the anchor pole upper end and is connected；
The circular shaft line of the fixed cylinder, the circular shaft line of border tube, the center of circle of one upper half circular hole of internal baffle, internal baffle
The central axis line setting in the center of circle of two upper half circular holes, the central shaft of anchor pole, position-limiting tube one, position-limiting tube two.
As a preferred embodiment of the utility model, the internal baffle one and crossbeam one, internal baffle two and crossbeam
There is certain distance between two, there are certain spaces for anchoring matrix deformation.
As another preferred embodiment of the utility model, the anchoring section upper surface of the anchor pole is provided with a groove, institute
It states bottom portion of groove and is axially pasted with several strain gauges along anchor pole, the strain gauge is connect with the deformeter.
Above-mentioned optimal technical scheme, the advantageous effects directly brought are：
(1) coaxial position-limiting tube design up and down, avoids phenomena such as anchor pole is tilted, tilted, and the ball of its inner wall arrangement subtracts
The frictional resistance of position-limiting tube when having lacked anchor rod drawing；
(2) halfbody anchor structure surface speckle field and the anchor pole for being disposed with strain gauge are used in combination, and realize anchor structure
The synchronism detection of deformation field and anchor axial force, especially anchor pole are analyzed with Anchor Agent interface stress and Coupling Deformation.
Preferably, it is connected by screw rod between the fixed cylinder and pedestal.
Preferably, the internal baffle one, two shape of internal baffle are semicircle.
Compared with prior art, the utility model brings following advantageous effects：
(1) it ensure that anchor pole is axially pulled out along halfbody anchor structure, prevent due to anchor pole inclination caused by eccentric drawing, stick up
Phenomena such as rising makes halfbody anchor structure metaboly be maximally maintained unanimously with complete structure body pull-out test；
(2) anchor structure deformation field and stress synchronism detection are realized, the complete of anchor mechanism data acquisition is improved
Face property；
(3) the utility model fixes halfbody anchor structure, structure letter by the way of protruding circular ring is arranged on fixed cylinder
It is single easy；
(4) the utility model is provided simultaneously with halfbody anchor structure and prepares and test two functions, increases the other half fixed cylinder
Body can carry out anchor structure routine pull-out test, increase on front side of the fixed cylinder one block transparent preposition baffle entirely after, can
Carry out soil layer anchor structure pull-out test.
Description of the drawings
The utility model is described further below in conjunction with the accompanying drawings：
Fig. 1 is halfbody anchor structure stress and deformation field test chart in the utility model；
Fig. 2 is the preparation facilities figure of halfbody anchor structure in the utility model；
Fig. 3 is the A-A sectional views of Fig. 2 in the utility model；
Fig. 4 is the B-B sectional views of Fig. 2 in the utility model；
Fig. 5 is to basically illustrate the utility model position-limiting tube structural schematic diagram；
Wherein：
1- fixed cylinders；2- pedestals；3- crossbeams；4- position-limiting tubes；4a- balls；5- internal baffles；6- border tubes；7- annulus；
The preposition baffles of 8-；9- anchors matrix；10- Anchor Agents；11- anchor poles；12- strain gauges；13- industrial cameras；14- deformeters；15-
Displacement sensor；16a- pull-out test machine upper grips；16b- pull-out test machine low bottom-discs.
Specific implementation mode
The utility model proposes a kind of halfbody anchor structure stress and deformation field synchronous test system, in order to make this practicality
Novel advantage, technical solution are clearer, clear, elaborate to the utility model with reference to specific embodiment.
The utility model provides a kind of halfbody anchor structure stress and deformation field synchronous testing device, in conjunction with Fig. 1 to Fig. 4
It is shown, including load fixing device, test device and pull-out test machine, wherein load fixing device includes fixed cylinder 1, bottom
2, two crossbeams 3 (crossbeam one and crossbeam two) of seat, two position-limiting tubes 4 (position-limiting tube one and position-limiting tube two), internal baffles 5 are (built-in
Baffle one and internal baffle two), border tube 6 and preposition baffle 8；Pedestal 2 is connected to 1 lower part of fixed cylinder by screw rod；Pedestal 2
It is connect with pull-out test machine low bottom-disc 16b；The annulus 7 of several protrusions is distributed on 1 inner wall of fixed cylinder, plays fixed halfbody anchoring
The effect of structure side wall.
It is connected with preposition baffle 8 (preposition baffle one and preposition baffle two) on the outside of 1 middle and upper part of fixed cylinder and middle and lower part, is led to
It crosses and preposition baffle one and preposition baffle two is set, to prevent halfbody anchor structure evagination from moving；Fixed cylinder 1 and preposition baffle
One, respectively there is a card slot in the junction of preposition baffle two, and an internal baffle 5 (corresponding internal baffle one and built-in is can be inserted into card slot
Baffle two, superposed is internal baffle one, is internal baffle two positioned at lower part), upper and lower internal baffle 5 and border tube 6
Both ends connect；5 circle centre position of internal baffle is a semicircle orifice, aperture and 11 diameter matches of anchor pole.
Further, fixed cylinder 1, above the space preparation anchoring matrix 9 between lower internal baffle 5, border tube 6, above and below
Anchor Agent 10 is perfused in space between internal baffle 5, anchoring matrix 9 and anchor pole 11；Upper and lower internal baffle 5 is spaced one with crossbeam 3
Set a distance, there are anchoring 9 deformation spaces of matrix, and prevent the material for preparing of anchoring matrix 9 from blocking position-limiting tube 4.
Further, 1 top and bottom of fixed cylinder are connected with crossbeam 3, and the setting of position-limiting tube 4 is at 3 middle part of crossbeam；Position-limiting tube
Several row's ball 4a are disposed on 4 inner walls, as shown in Figure 5, ball 4a is in direct contact with anchor pole 11, can reduce 11 drawing of anchor pole
When frictional force, and prevent the eccentric drawing of anchor pole 11.
Further, the circular shaft line of fixed cylinder 1, the circular shaft line of border tube 6, the aperture center of circle of internal baffle 5, anchor pole 11
Central shaft, 4 central axis line of position-limiting tube.
The load fixing device of the utility model, internal prepare have halfbody anchor structure, wherein halfbody anchor structure packet
Including anchoring matrix 9, Anchor Agent 10 and anchor pole 11, the anchoring section upper surface of wherein anchor pole 11 has a shallow grooves, and bottom portion of groove is along anchor
Bar is axially pasted with several strain gauges 12；Anchor pole 11 passes through upper and lower limit pipe 4, the upper end to be pressed from both sides with pull-out test machine upper grip 16a
It is close to and connects；Spray artificial speckle field in halfbody anchor structure outer surface.
The stress of the halfbody anchor structure of the utility model carries out data with deformation field by stress and deformation measuring system
Monitoring, corresponding test device includes imager such as industrial camera 13, deformeter 14, displacement sensor 15, computer etc.；Wherein
Displacement sensor 15 is mounted on the top of the upper end floor beam 3 (i.e. crossbeam one) of load fixing device, and is connect with anchor pole 11, monitors
11 drawing displacement of anchor pole；Industrial camera 13 is arranged in halfbody anchor structure right opposite, and imaging region covers entire halfbody anchoring
Structure monitors the evolutionary process of anchor structure surface deformation field in 11 pull-out test of anchor pole；In deformeter 14 and 11 groove of anchor pole
The meter connection of strain 12, monitor the axial strain at 11 different location of anchor pole, and then obtain 11 axle power of anchor pole and shear stress on interface
The regularity of distribution；The monitoring data of industrial camera 13, deformeter 14 and displacement sensor 15 are passed in computer, using computer into
Row data storage and processing.
The test method of the utility model halfbody anchor structure stress and deformation field synchronous testing device is done into one below
Walk explanation：
A kind of test method using the halfbody anchor structure stress and deformation field synchronous testing device comprising following
Step：
A, the card slot of the insertion fixed cylinder 1 of the upper and lower internal baffle 5 in fixing device will be loaded, 6 both ends of border tube are caught in
Upper and lower internal baffle 5；Upper and lower preposition baffle 8 is connected on fixed cylinder 1, makes 6 clamping of internal baffle 5 and border tube；Solid
The material that the preparations such as sand, cement anchoring matrix 9 is inserted in 6 space of internal baffle 5 and border tube of safety barrel body 1, stirs evenly
After be placed on jolt ramming on bobbing machine, be put into after being conserved 7 days in curing box and take out；
B, border tube 6 is removed, anchor pole is inserted into position-limiting tube 4, so that the groove location for posting strain gauge is in built in two and keeps off
Between plate 5, and groove is upward；10 materials of Anchor Agents such as mortar are added in space between anchoring matrix 9 and anchor pole 11, and stir
Uniformly, it is then conserved；
C, after the maintenance of halfbody anchor structure, upper and lower internal baffle 5 and preposition baffle 8 are removed；Using cutting machine by anchor
10 surface rubbing of fixing structure matrix 9 and Anchor Agent, and prepare artificial speckle field using spray painting；Reconnect upper and lower preposition baffle
8, the fixed cylinder 1 containing halfbody anchor structure is connect fastening with firm banking 2 by screw rod, by pedestal 2 and pull-out test
The 16b connections of machine low bottom-disc；Pull-out test machine stroke is adjusted, pull-out test machine upper grip 16a is clamped into anchor pole 11；
D, place industrial camera 13 in halfbody anchor structure front, industrial camera 13 it is horizontal and with halfbody anchor structure center
On a horizontal line, 13 focal length of industrial camera is adjusted, halfbody anchor structure entirety speckle image is made clearly to be presented on calculating
On machine；Set speckle image frequency acquisition, generally higher than 5 frames/second；Position is installed in the upper beam 3 of load fixing device
Displacement sensor 15；Strain gauge 12 in 11 groove of anchor pole is accessed into deformeter 14；
E, pull-out test machine drawing bolt 11 is opened, 11 drawing load of record anchor pole, drawing displacement, axial direction during experiment
The data such as strain, speckle image；After anchor pole 11 pulls out, stop experiment, carries out data analysis.
The part that do not addressed in the utility model uses or uses for reference prior art and can be realized.
Although more herein used the terms such as border tube, position-limiting tube, it is not precluded and uses other terms
Possibility, the simple replacement that those skilled in the art do these terms under the enlightenment of the utility model, should all this
Within the protection domain of utility model.
Claims (5)
1. a kind of halfbody anchor structure stress and deformation field synchronous test system comprising be used to prepare and fix the halfbody anchor
The load fixing device of fixing structure, the test device that the halfbody anchor structure is monitored and to the halfbody anchor structure
Carry out the pull-out test machine of pull-out test, it is characterised in that：
The load fixing device includes fixed cylinder, preposition baffle one, preposition baffle two, internal baffle one, internal baffle two
And pedestal, the fixed cylinder is the vertical cabinet that a section is semicircle shape, at the top and bottom of the fixed cylinder
Semi arch both ends are mounted on crossbeam, are respectively located at the crossbeam one of top surface and the crossbeam two positioned at bottom surface, one He of the crossbeam
Crossbeam two is mutually parallel；The preposition baffle one, preposition baffle two are separately positioned on the upper zone in the fixed cylinder
With middle and lower part region, one card slot is respectively set with the inner wall of the preposition baffle one, the fixed cylinder of two junction of preposition baffle,
The internal baffle one, internal baffle two are installed in the card slot, one is both provided in the internal baffle one, internal baffle two
The aperture of semicircle orifice, the semicircle orifice is directly matched with the anchor pole in halfbody anchor structure；
The load fixing device further includes having position-limiting tube one, position-limiting tube two and being anchored for dividing in the halfbody anchor structure
The border tube of matrix and Anchor Agent, the position-limiting tube one, position-limiting tube two are separately positioned on the center of the crossbeam one and crossbeam two
Place；The border tube is semi-cylindrical shell, and the both ends of the shell are connected in the internal baffle one and internal baffle two；
The position-limiting tube one, position-limiting tube two inner wall on be provided with several balls, the anchor pole in the halfbody anchor structure and the limit
Ball in position pipe one, position-limiting tube two is in direct contact；
When preparing the halfbody anchor structure, between the fixed cylinder, internal baffle one, internal baffle two and border tube
The regional space of formation prepares anchoring matrix；It is formed between the internal baffle one, internal baffle two, anchoring matrix and anchor pole
Regional space be perfused Anchor Agent；
The test device includes deformeter, displacement sensor, imager and computer, and the deformeter is for monitoring anchor pole not
With the axial strain at position；Institute's displacement sensors are mounted on the crossbeam one, the drawing position for monitoring the anchor pole
It moves；The right opposite in the halfbody anchor structure is arranged in the imager, for monitoring anchor structure table in anchor rod drawing experiment
The evolutionary process of facial disfigurement field；The computer is used for monitoring data obtained by the deformeter, displacement sensor and imager
It is stored and is handled；
The upper grip of the pull-out test machine is clamped with the anchor pole upper end and is connected；
The circular shaft line of the fixed cylinder, the circular shaft line of border tube, the center of circle of one upper half circular hole of internal baffle, in internal baffle two
The central axis line setting in the center of circle of semicircle orifice, the central shaft of anchor pole, position-limiting tube one, position-limiting tube two.
2. a kind of halfbody anchor structure stress according to claim 1 and deformation field synchronous test system, it is characterised in that：
There is certain distance between the internal baffle one and crossbeam one, internal baffle two and crossbeam two, is stayed for anchoring matrix deformation
There is certain space.
3. a kind of halfbody anchor structure stress according to claim 1 and deformation field synchronous test system, it is characterised in that：
The anchoring section upper surface of the anchor pole is provided with a groove, and the bottom portion of groove is axially pasted with several strain gauges along anchor pole,
The strain gauge is connect with the deformeter.
4. a kind of halfbody anchor structure stress according to claim 1 and deformation field synchronous test system, it is characterised in that：
It is connected by screw rod between the fixed cylinder and pedestal.
5. a kind of halfbody anchor structure stress according to claim 1 and deformation field synchronous test system, it is characterised in that：
The internal baffle one, two shape of internal baffle are semicircle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820041287.6U CN207764102U (en) | 2018-01-11 | 2018-01-11 | Halfbody anchor structure stress and deformation field synchronous test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820041287.6U CN207764102U (en) | 2018-01-11 | 2018-01-11 | Halfbody anchor structure stress and deformation field synchronous test system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207764102U true CN207764102U (en) | 2018-08-24 |
Family
ID=63183994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820041287.6U Withdrawn - After Issue CN207764102U (en) | 2018-01-11 | 2018-01-11 | Halfbody anchor structure stress and deformation field synchronous test system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207764102U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108303369A (en) * | 2018-01-11 | 2018-07-20 | 山东科技大学 | Halfbody anchor structure stress and deformation field synchronous test system and test method |
| CN110261235A (en) * | 2019-07-05 | 2019-09-20 | 山东科技大学 | Crack country rock anchoring property damage measure device and test method |
| CN112647994A (en) * | 2021-01-29 | 2021-04-13 | 河南理工大学 | Anchor rod centering degree experiment device and method based on numerical control drilling machine |
-
2018
- 2018-01-11 CN CN201820041287.6U patent/CN207764102U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108303369A (en) * | 2018-01-11 | 2018-07-20 | 山东科技大学 | Halfbody anchor structure stress and deformation field synchronous test system and test method |
| CN108303369B (en) * | 2018-01-11 | 2019-07-09 | 山东科技大学 | Halfbody anchor structure stress and deformation field synchronous test system and test method |
| CN110261235A (en) * | 2019-07-05 | 2019-09-20 | 山东科技大学 | Crack country rock anchoring property damage measure device and test method |
| CN112647994A (en) * | 2021-01-29 | 2021-04-13 | 河南理工大学 | Anchor rod centering degree experiment device and method based on numerical control drilling machine |
| CN112647994B (en) * | 2021-01-29 | 2023-02-24 | 河南理工大学 | Anchor rod centering degree experiment device and method based on numerical control drilling machine |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180824 Effective date of abandoning: 20190709 |
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| AV01 | Patent right actively abandoned |