CN103728077B - Anchor-holding force of anchor bolt test emulation comprehensive experimental device - Google Patents
Anchor-holding force of anchor bolt test emulation comprehensive experimental device Download PDFInfo
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- CN103728077B CN103728077B CN201410034816.6A CN201410034816A CN103728077B CN 103728077 B CN103728077 B CN 103728077B CN 201410034816 A CN201410034816 A CN 201410034816A CN 103728077 B CN103728077 B CN 103728077B
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Abstract
The present invention relates to anchor-holding force of anchor bolt test emulation comprehensive experimental device, can effectively solve prior art to waste time and energy, the problem that accuracy rate is low simultaneously, its technical scheme solved is, comprise frame, steel pipe, anchor pole and annular cylinder, frame is by supporting leg, upper frame and underframe are formed, 4 supporting legs are welded on the upper frame of level respectively, on the corner of underframe, oil cylinder installing plate is equipped with in the front portion of frame, oil cylinder installing plate is equipped with annular cylinder, upper frame is provided with bearing, manual pump and digital display meter bearing be equipped with, underframe there is steel pipe through Boards wall, anchor pole one end is anchored in steel pipe, the other end is through annular cylinder center, anchor pole stretches out one end of annular cylinder, fixed by the baffle plate of annular cylinder end, cost of the present invention is low, accuracy rate is high, substantially increase work efficiency, effectively prevent the generation of working site top board roof fall accident, it is the innovation on anchor rod anchored force test device.
Description
Technical field
The present invention relates to field, colliery, particularly a kind of anchor-holding force of anchor bolt test emulation comprehensive experimental device.
Background technology
Because the mode of the bolt support has the advantages such as construction cost is low, speed fast, labor strength alleviates, thus become the main support reinforcement mode of roadway and Geotechnical Engineering.Anchor pole quantity for coal road is often only all more than several ten million roots by China.For roadway supported by bolt, can the quality of Detection of Bolt Bonding Integrity have direct impact to improve country rock total bearing capacity, is the important indicator of Safety of Coal Mine Production.Therefore be the important step promoting Safety of Coal Mine Production to the detection of Detection of Bolt Bonding Integrity.In fact, more and more deep along with the China's coal-mine resource exploitation degree of depth, due to by heavily stressed, the rock property difference of country rock with architectonicly to affect, the size of the anchor rod drawing power in same tunnel is all variant, minority anchor rod drawing power does not reach designing requirement, even all will cause the generation across lane, roof fall accident.Present stage Detection of Bolt Bonding Integrity and the detection of stress mostly still rest on the destructive pull-out test stage, this detection means is not only taken a lot of work but also time-consuming, stronger disturbance is also produced to the rock mass reinforced, reduce the reinforcement effect of anchor pole to country rock, be difficult to calculate anchor force exactly simultaneously and whether meet design requirement.If Non-Destructive Testing can be carried out to pulling capacity will certainly will greatly alleviate the labour intensity of workman, cost-saving, in order to strengthen the safety in production in colliery, avoid the generation of this type of accident, application correlation theories knowledge and in conjunction with field condition, develop a kind of anchor rod anchored simulation synthetic experimental provision, by laboratory simulation anchoring rod drawing process, detect the size of anchor force and to carry out the research of Non-Destructive Testing to Detection of Bolt Bonding Integrity imperative.
Summary of the invention
For above-mentioned situation, for solving the defect of prior art, the object of the present invention is just to provide a kind of anchor-holding force of anchor bolt test emulation comprehensive experimental device, can effectively solve prior art to waste time and energy, stronger disturbance is produced to the rock mass reinforced, reduce the reinforcement effect of anchor pole to country rock, the problem that accuracy rate is low simultaneously.
The technical scheme that the present invention solves is, comprise frame, steel pipe, anchor pole and annular cylinder, frame is by supporting leg, upper frame and underframe are formed, be fixed on basis through foot bolt, 4 supporting legs are welded on the upper frame of level respectively, on the corner of underframe, oil cylinder installing plate is equipped with in the front portion of frame, oil cylinder installing plate is equipped with annular cylinder, upper frame is provided with bearing, manual pump and digital display meter bearing be equipped with, underframe there is steel pipe through Boards wall, anchor pole one end is anchored in steel pipe by Anchor Agent, the other end is through annular cylinder center, anchor pole stretches out one end of annular cylinder, fixed by the baffle plate of annular cylinder end.
Apparatus of the present invention novel and reasonable structure, cost is low, effective, time saving and energy saving, and accuracy rate is high, substantially increases work efficiency, effectively prevent the generation of working site top board roof fall accident, is the innovation on anchor rod anchored force test device.
Accompanying drawing explanation
Fig. 1 is perspective view of the present invention.
Fig. 2 is structural front view of the present invention.
Fig. 3 is structure upward view of the present invention.
Fig. 4 is structure side view of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
Provided by Fig. 1-4, the present invention includes frame, steel pipe, anchor pole and annular cylinder, frame 1 is by supporting leg 5, upper frame 4 and underframe 11 are formed, be fixed on basis through foot bolt, 4 supporting legs 5 are welded on the upper frame 4 of level respectively, on the corner of underframe 11, oil cylinder installing plate 6 is equipped with in the front portion of frame 1, annular cylinder 9 oil cylinder installing plate 6 is equipped with, upper frame 4 is provided with bearing 10, manual pump and digital display meter (not shown in FIG.) bearing 10 be equipped with, underframe 11 is fixed with steel pipe 2 through clamping plate 3, anchor pole 7 one end is anchored in steel pipe 2 by Anchor Agent, the other end is through annular cylinder 9 center, anchor pole 7 stretches out one end of annular cylinder 9, fixed by the baffle plate 8 of annular cylinder 9 end.
In order to ensure result of use, the rectangular parallelepiped of 600 × 60 × 60mm that described supporting leg 5 is made for square steel, supporting leg 5 bottom is equipped with for stable flat board 13, and dull and stereotyped 13 are fixed on basis through foot bolt.
Described upper frame 4, underframe 11 are the rectangle that 4 square steel head and the tail vertically weld together formation successively, and square steel is of a size of 680 × 60 × 60mm.
Described clamping plate 3 have 4, inside surface is arc-shaped, match with the radian of steel pipe 2, there is bolt hole at 4 angles of clamping plate 3, and be fixed on the two ends of underframe 11 and the crossbeam 12 of centre by steel pipe 2 through screw bolt and nut, steel pipe 2 is weldless steel tube, internal diameter is 28mm, long is 2000mm, and wall thickness is 3mm, and one end is closed.
Described oil cylinder installing plate 6 is of a size of 200 × 200 × 10mm, is fixedly mounted on the front portion of frame 1 by angle steel, is used for placing annular cylinder 9.
Described bearing 10 is of a size of 750 × 200 × 10mm, and it has fixed orifice, is used for fixing manual pump and digital display meter.
Described baffle plate 8 diameter is 70mm, and thick is 10mm, is used for blocking annular cylinder and anchor pole.
Described annular cylinder 9, manual pump and digital display meter form pressue device, the stroke of annular cylinder 9 is 60mm, rated pressure is 30T, internal diameter is 45mm, manual pump is of a size of 630 × 175 × 170mm, oil reserve is 0.7L, is used for controlling the flexible of oil cylinder, and digital display meter directly can show the size of pressure.
Described anchor pole 7 diameter is 20mm, and long is 2400mm, and one end anchoring in steel pipe 2, other end annular cylinder 9 pressurizes.
Described oil cylinder installing plate 6 is made up of the lateral part of level and oblique part upwards, it is anterior that lateral part level is contained in underframe 11, oblique part one end is contained on upper frame 4, and the other end and lateral part link together, the fixed support structure of looping oil cylinder 9.
In order to reach result of use, the supporting leg 5 of frame 1 passes through must to placing concrete in foundation pit before flat board is connected with ground, tamping rear fixes on the ground by foot bolt, and this is to ensure that annular cylinder guarantees stability of equilibrium and the personal security of support when pressurizeing anchor system; Steel pipe 2 one end is closed, and is to obtain better anchoring effect like this; Clamping plate 3 are fixed on square steel with screw bolt and nut, and fixing tight, otherwise steel pipe can be pulled out, and do not reach the object of drawing experiment; Anchor pole afterbody leaves the free segment of 100mm, can place the sensor of Detection of Bolt Bonding Integrity the cannot-harm-detection device like this at free segment; Pressure process must be slowly even, otherwise easily occur security incident.
Principle of work of the present invention is as follows: the work progress of engineering site bolt supporting is, first hole inside country rock with roofbolter, then resin anchoring agent is put into boring, with anchor pole, it is slowly shifted onto at the bottom of hole, with roofbolter, rotation limit, anchor pole limit is advanced at the bottom of hole again, solidify after a period of time until Anchor Agent, namely this anchor system is bonded together.Anchor-holding force of anchor bolt test emulation comprehensive experimental device adopts frame 1 as support, adopts steel pipe 2 to simulate country rock, and the anchor system be made up of anchor pole 7 and Anchor Agent and steel pipe 2 with on-the-spot anchor pole Surrounding Rock System relatively.Adopt annular cylinder 9 to anchor pole pressurization, along with slowly evenly increasing of pressure, between anchor pole and steel pipe, obvious relative displacement can be produced, now record the data that pressue device digital display meter shows, this makes it possible to anchoring rod drawing experimentation that is virtually reality like reality.In the process of laboratory drawing, can the scene of solving be difficult to realize problem.Can analyze the size of anchor force in laboratory, by the size of anchor force under the Anchor Agent anchor situation of research different model, the design of guide field anchor rod drawing power.Can also settle Detection of Bolt Bonding Integrity the cannot-harm-detection device on anchor pole top, realize the Non-Destructive Testing research under the different anchor force of anchor pole, this Non-Destructive Testing for on-the-spot Detection of Bolt Bonding Integrity has very important meaning.
Equipment installation steps of the present invention are: first excavate a foundation pit, placing concrete in foundation pit, is fixed on the ground by the base plate of foot bolt by frame after tamping drying, be placed on by steel pipe on clamping plate, fix tight steel pipe with bolt.Resin anchoring agent is put into steel pipe, then with anchor pole, it is slowly shifted onto bottom weldless steel tube, with roofbolter, rotation limit, anchor pole limit is advanced to bottom steel pipe, anchor pole forms steel pipe-anchor rod system, adds baffle plate at anchor pole exposed junction together with anchoring to steel pipe, annular cylinder is through anchor pole, outer end is blocked with baffle plate again, and finally fixing tight with nut, annular cylinder is linked together by high-pressure oil pipe and manual pump.After installing, start slowly evenly to handle manual pump depression bar, until anchor pole slides or the body of rod destroys, record experimental data, detects the size of anchor force, realizes the analysis to anchor force.When doing anchor rod anchored Non-Destructive Testing, the cannot-harm-detection device sensor being connected to anchor pole top, being pressurizeed by oil cylinder, study the guide properties of anchoring body under different anchor force, draw the detection curve under different anchor force, realize the Non-Destructive Testing of anchor-holding force of anchor bolt.
Apparatus of the present invention novel and reasonable structure, according to true colliery, tunnel anchor rod drawing experimental simulation anchor-holding force of anchor bolt test emulation comprehensive experimental device out, it can the emulation colliery of visual system, the anchor rod drawing experimentations such as tunnel, both the research that on-the-spot anchor rod drawing is analyzed had been conducive to, also help the Non-Destructive Testing of on-the-spot Detection of Bolt Bonding Integrity, simultaneously can experimentally analysis result, guide field anchoring construction process, prevent the generation of working site top board roof fall accident, it is the innovation on anchor rod anchored force test device, there is good economic and social benefit.
Claims (9)
1. an anchor-holding force of anchor bolt test emulation comprehensive experimental device, comprise frame, steel pipe, anchor pole and annular cylinder, it is characterized in that, frame (1) is by supporting leg (5), upper frame (4) and underframe (11) are formed, be fixed on basis through foot bolt, 4 supporting legs (5) are welded on the upper frame (4) of level respectively, on the corner of underframe (11), oil cylinder installing plate (6) is equipped with in the front portion of frame (1), annular cylinder (9) oil cylinder installing plate (6) is equipped with, upper frame (4) is provided with bearing (10), (10) are equipped with manual pump and digital display meter to bearing, underframe (11) is fixed with steel pipe (2) through clamping plate (3), anchor pole (7) one end is anchored in steel pipe (2) by Anchor Agent, the other end is through annular cylinder (9) center, anchor pole (7) stretches out one end of annular cylinder (9), fixed by the baffle plate (8) of annular cylinder (9) end, described oil cylinder installing plate (6) is made up of the lateral part of level and oblique part upwards, it is anterior that lateral part level is contained in underframe (11), oblique part one end is contained on upper frame (4), the other end and lateral part link together, the fixed support structure of looping oil cylinder (9).
2. anchor-holding force of anchor bolt test emulation comprehensive experimental device according to claim 1, it is characterized in that, the rectangular parallelepiped of 600 × 60 × 60mm that described supporting leg (5) is made for square steel, supporting leg (5) bottom is equipped with for stable flat board (13), and dull and stereotyped (13) are fixed on basis through foot bolt.
3. anchor-holding force of anchor bolt test emulation comprehensive experimental device according to claim 1, it is characterized in that, described upper frame (4), underframe (11) are the rectangle that 4 square steel head and the tail vertically weld together formation successively, and square steel is of a size of 680 × 60 × 60mm.
4. anchor-holding force of anchor bolt test emulation comprehensive experimental device according to claim 1, it is characterized in that, described clamping plate (3) have 4, inside surface is arc-shaped, match with the radian of steel pipe (2), there is bolt hole at 4 angles of clamping plate (3), through screw bolt and nut, steel pipe (2) is fixed on the two ends of underframe (11) and the crossbeam (12) of centre, steel pipe (2) is weldless steel tube, internal diameter is 28mm, long is 2000mm, and wall thickness is 3mm, and one end is closed.
5. anchor-holding force of anchor bolt test emulation comprehensive experimental device according to claim 1, it is characterized in that, described oil cylinder installing plate (6) is of a size of 200 × 200 × 10mm, be fixedly mounted on the front portion of frame (1) by angle steel, be used for placing annular cylinder (9).
6. anchor-holding force of anchor bolt test emulation comprehensive experimental device according to claim 1, is characterized in that, described bearing (10) is of a size of 750 × 200 × 10mm, it has fixed orifice, is used for fixing manual pump and digital display meter.
7. anchor-holding force of anchor bolt test emulation comprehensive experimental device according to claim 1, is characterized in that, described baffle plate (8) diameter is 70mm, and thick is 10mm, is used for blocking annular cylinder and anchor pole.
8. anchor-holding force of anchor bolt test emulation comprehensive experimental device according to claim 1, it is characterized in that, described annular cylinder (9), manual pump and digital display meter form pressue device, the stroke of annular cylinder (9) is 60mm, and rated pressure is 30T, and internal diameter is 45mm, manual pump is of a size of 630 × 175 × 170mm, oil reserve is 0.7L, is used for controlling the flexible of oil cylinder, and digital display meter directly can show the size of pressure.
9. anchor-holding force of anchor bolt test emulation comprehensive experimental device according to claim 1, it is characterized in that, described anchor pole (7) diameter is 20mm, and long is 2400mm, one end anchoring in steel pipe (2), other end annular cylinder (9) pressurizes.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410034816.6A CN103728077B (en) | 2014-01-24 | 2014-01-24 | Anchor-holding force of anchor bolt test emulation comprehensive experimental device |
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| CN201410034816.6A CN103728077B (en) | 2014-01-24 | 2014-01-24 | Anchor-holding force of anchor bolt test emulation comprehensive experimental device |
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| CN103728077B true CN103728077B (en) | 2015-12-02 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104075835B (en) * | 2014-06-30 | 2016-08-17 | 天地科技股份有限公司 | A kind of testing stand for rockbolt installation pretension and method of testing |
| CN104458115A (en) * | 2014-11-27 | 2015-03-25 | 中国电建集团成都勘测设计研究院有限公司 | Stress detector calibration device |
| CN105366312B (en) * | 2015-12-09 | 2018-01-30 | 重庆市桑麻环保科技有限公司 | A kind of powdery paints pulverizer vibrating transportation fixed mount |
| CN106996302A (en) * | 2017-05-27 | 2017-08-01 | 河南理工大学 | Bore the integrated anchorage technology multi-function test stand of envelope note and its test method |
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| FR2808877B1 (en) * | 2000-05-12 | 2002-07-12 | Potain Sa | METHOD AND DEVICE FOR SIMULATING LOADS ON LIFTING EQUIPMENT |
| US20100206089A1 (en) * | 2009-02-19 | 2010-08-19 | Griswold Jr William A | Method and apparatus for testing post-installed anchor rods |
| CN102507330B (en) * | 2011-11-15 | 2014-08-06 | 煤炭科学研究总院 | Overall drawing test device for mining anchor rod |
| CN102636397B (en) * | 2012-04-19 | 2014-07-02 | 山西潞安环保能源开发股份有限公司 | Device and method for rapidly testing comprehensive mechanical properties of anchor bolt |
| CN203672537U (en) * | 2014-01-24 | 2014-06-25 | 河南理工大学 | Simulated integrated experiment apparatus for anchor rod anchoring force testing |
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