CN102621010B - Multifunctional testing machine for deep surrounding rock anchoring performance - Google Patents
Multifunctional testing machine for deep surrounding rock anchoring performance Download PDFInfo
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Abstract
The invention discloses a multifunctional testing machine for deep surrounding rock anchoring performance, which comprises a servo hydraulic control system, an anchoring body vertical pulling and pressing system, a horizontal shearing system and an anchor rod anchor rope shearing system, wherein the servo hydraulic control system is connected with each of the hydraulic oil cylinders of the anchoring body vertical pulling and pressing system, the horizontal shearing system and the anchor rod anchor rope shearing system; the servo hydraulic control system comprises a hydraulic station and a computer control console; a servo hydraulic loading control system is arranged on one side of a base and is connected with the hydraulic oil cylinders of the vertical pulling and pressing system, the horizontal shearing system and the anchor rod anchor rope shearing system; and the computer control console controls the oil feed quantity of the hydraulic station to the oil cylinders of other systems and the oil return quantity. The multifunctional testing machine disclosed by the invention can more truly reflect the deformation rules of the surrounding rock of underground works, more effectively simulate the support under fracture deformation conditions of surrounding rock of underground cavities, and realize the testing of the anchoring performance of an anchor rod, an anchor rope and other support structures.
Description
Technical field
The present invention relates to a kind of a kind of deep wall rock anchoring property multifunctional test machine of applying in the country rock anchoring property experimental study of the deep underground engineering field such as mine, the energy, water power, traffic, national defence.
Background technology
Along with national economic development and fundamental construction advance, the deep underground workss such as mine, the energy, water power, traffic, national defence are more and more.At present, along with applying of anchor pole technology, the supporting of deep Geotechnical Engineering country rock adopts bolting and rope support technology substantially, and particularly deeps mines engineering adopts the coupling supporting technology such as anchor rete cord spray.The engineering use amount of anchor shaft anchor cable is very large, and the anchoring property of anchor pole, anchor cable is related to the safety of engineering, and therefore, deep wall rock anchor mechanism and parameter designing are extremely important.Due to the complicacy of the physico mechanical characteristic of deep wall rock, especially for deep soft rock, its Mechanism of Deformation And Failure is also disputable so far.The reinforcement mechanism of bolting and rope support country rock still rests on qualitative upper, and how the quantitative effect of determining country rock anchoring is the problem that is worth further investigation.Due to the limitation of theoretical and numerical method, definite anchor pole that can't be quantitative, the correlation parameter of cable bolting, adopt analogy method mostly in engineering, and its accuracy is not good enough.How application experiment apparatus system is furtherd investigate failure and deformation of surrounding rocks and anchor mechanism is object of the present invention.
The Site Detection of anchor shaft anchor cable mainly be take pull-out test as main at present, coordinates the monitoring of surrouding rock deformation and support internal force simultaneously.In laboratory, mainly take test separately anchor pole, anchor cable is tested as main.The present Research of relevant anchor pole, anchorage cable anchoring testing machine for testing performance is as follows:
(1) Chinese patent that application number is 87217157 discloses a kind of test equipment for anchor fod, this test unit overlaps and has spring, latch plate and setting nut in guide rod and screw mandrel, and suitably adjust according to surrouding rock deformation rule and the anchor rod experiment done the limiting card that setting nut and fixing anchor bar test specimen are used, can make all kinds of anchor rod experiments that meet surrouding rock deformation rule.This device can be done the anchor rod experiment of Bolt test, the test of local anchoring rod, the test of end anchoring rod, the test of super plastic limit elongate bolt and other classifications, but cannot carry out anchor pole, anchor cable tensile shear compbined test, the test of large-scale crack rock anchoring property etc.Concerning underground works, carrying out along with excavation, country rock not only bears the flatly effect of stress also will be subject to the vertically effect of stress, and the existing tensile force of power acting on anchor pole, anchor cable has again shearing force, and in the middle of country rock, also exists the different crack of development degree.
(2) Chinese patent that application number is 200810249631.1 discloses a kind of anchoring body rheologic drawing device and test method.This test unit is, at the top of rheological test machine, a pulling force sensor is installed, and installs two be connected structure in main frame force column bottom with main frame oil cylinder top, by upper and lower two connecting elements, is connected with anchoring testpieces.This test unit can only carry out the pull-out test of anchoring body, can not carry out various combination mode stress deformation coupling test.For underground works, different geologic structures often needs different supporting array modes.
(3) Chinese patent that application number is 200820060577.1 discloses a kind of microcomputer and has controlled static load anchoring testing machine, and ingredient comprises main frame, husky wall car body, microcomputer controlled electro-hydraulic servo system.This testing machine can only carry out the detection of static load anchoring performance, support anchoring performance that can not Reality simulation stress field.For underground works, country rock terrestrial stress is around along with the time is constantly changing.
(4) Chinese patent that application number is 200820232849.1 discloses a kind of anchorage body rheological drawing test device, it is that a pulling force sensor is set at the top of rheological test machine, center section is anchoring body and connecting elements thereof, bottom oil cylinder is implemented pulling force to down stroke, pulling capacity size and action time are controlled by oil cylinder oil inlet and oil return system, and pulling force sensor records the size of the suffered pulling capacity of anchoring body.This test unit can only carry out pull-out test, can not carry out other tests.Along with the development of underground works, the pulling capacity of only testing anchor pole, anchor cable can not meet the needs of Practical Project.
(5) Chinese patent that application number is 201020535350.5 discloses a kind of static load anchoring performance testing device, and this device comprises: mainframe, lifting jack, power value detecting device, displacement transducer and control display.This test unit can only carry out simple static load anchoring performance test, can not carry out anchor pole, the test of anchor cable associating anchoring property.In the middle of actual underground engineering support, tend to adopt the combined supporting of anchor pole, anchor cable.
Current anchoring performance testing device is single anchor shaft anchor cable experimental provision, and function singleness is not considered the coupling of the effect of country rock, particularly anchor pole, anchor cable and support unit and country rock anchoring body.
The present invention is exactly in order to overcome the deficiency of existing anchoring property experimental provision, the multifunctional experiment system that is specifically designed to deep wall rock anchoring experimental study of development.System can realize deep wall rock anchoring property multifunction test, mainly comprise the detection test, supporting combined member Experiment of Mechanical Behavior, country rock of anchor pole, anchorage cable anchoring performance and anchor shaft anchor cable coupling stress deformation test and and country rock anchoring body deformation failure coupling test, can provide load-displacement trial curve, have that compact overall structure is stable, automaticity and an advantage such as test accuracy is high, test function is abundant, simple to operation.
Summary of the invention
Object of the present invention is exactly the function singleness existing in order to solve the anchoring property experimental provision of prior art, do not consider the effect of country rock, the particularly coupling of anchor pole, anchor cable and support unit and country rock anchoring body, simple static load anchoring performance test can only be carried out, the problem of anchor pole, the test of anchor cable associating anchoring property can not be carried out; A kind of deep wall rock anchoring property multifunctional test machine is provided; Can reflect more realistically underground engineering wall rock deformation rule, and more effectively supporting under simulate formation surrounding rock of chamber failure by rupture condition, realize the multifunction test device of the supporting construction anchoring property tests such as anchor pole, anchor cable.
For achieving the above object, the present invention adopts following technical proposals:
A kind of deep wall rock anchoring property multifunctional test machine, comprise servo hydraulic control system, the vertical tension and compression system of anchoring body, horizontal shear system, anchor shaft anchor cable cutting system, servo hydraulic control system is connected with the hydraulic jack of anchor shaft anchor cable cutting system with the vertical tension and compression system of anchoring body, horizontal shear system respectively.
Described servo hydraulic control system comprises Hydraulic Station and console computer, servo-hydraulic Loading Control System is located at a side of pedestal, by high-pressure oil pipe, be connected with the hydraulic jack of vertical tension and compression system, horizontal shear system, anchor pole lateral shear system, console computer is controlled Hydraulic Station controlling to oil mass and recirculating oil quantity oil cylinder in other system.
Described anchor shaft anchor cable cutting system comprises two cross cylinders, two reaction frames, bolt and shearing facility, wherein a side of cross cylinder is arranged on reaction frame and with shearing facility and is connected, opposite side is connected and is connected with high-pressure oil pipe with lower vertical loading reaction plate, two reaction frames connect, cross cylinder is connected with servo-hydraulic Control experiment platform by high-pressure oil pipe, the opposite side of cross cylinder is connected with lower vertical loading reaction plate by bolt, and two reaction frames connect by four thru-bolts.
Described horizontal shear system comprises shearing oil cylinder, counter-force piece, shear reaction plate, base plate, wherein shear oil cylinder and be connected to the middle and upper part of shearing reaction plate, the piston of shearing oil cylinder is provided with shearing component device, while being used for anchoring test specimen to shear, transmit power, counter-force piece is connected with the bottom of shearing reaction plate, shearing reaction plate for two is fixed together by four long draws, and be connected with base plate, pulley is located in the circular port that base plate reserves, between pulley, array pitch can regulate by the circular port on base plate, pulley coordinates with model rail, along model rail, anchoring test specimen is moved in and out.The anchoring test specimen of anchor pole, anchor cable is placed on the base plate of horizontal shear system, shears oil cylinder and is connected with shearing reaction plate by bolt, and counter-force piece is connected with the bottom of shearing reaction plate by bolt.
The vertical tension and compression system of described anchoring body comprises two vertical loading oil cylinders, four movements fixedly leading screw, four guiding feed rods, base, limiting plate, limit sensors, displacement transducer, upper vertical loading reaction plate, lower vertical loading reaction plates.Wherein mobile fixedly leading screw, guiding feed rod top are connected with limiting plate respectively, bottom is connected with base respectively, base is connected with pedestal, mobile fixedly leading screw, guiding feed rod respectively by movement fixedly leading screw mounting hole be connected with lower vertical loading reaction plate with upper vertical loading reaction plate with the feed rod mounting hole that leads, the cylinder body of two vertical loading oil cylinders is connected with lower vertical loading reaction plate.
Base is connected with pedestal by bolt, and upper vertical loading reaction plate, lower vertical loading reaction plate are connected with mobile fixedly leading screw by nut, and two vertical loading oil cylinders are connected with lower vertical loading reaction plate by bolt.The position of upper vertical loading reaction plate and lower vertical loading reaction plate can regulate by vertical loading oil cylinder and nut.
Described upper vertical loading reaction plate and lower vertical loading reaction plate are provided with displacement transducer, the displacement that one end of displacement transducer is connected with base, is used for measuring upper and lower vertical loading reaction plate, the other end is connected with console computer, to provide load--and displacement curve; Limit sensors is located on the upper vertical loading reaction plate below limiting plate, and limit sensors is connected with console computer.
Described upper vertical loading reaction plate and lower vertical loading reaction plate are respectively monoblock cast fin-plate type structure in length and breadth, the left and right sides is provided with lug structure, is provided with vertical loading oil cylinder mounting hole, wherein one side is plane and is respectively equipped with anchor pole fixture mounting hole, anchor cable fixture mounting hole, and anchor pole fixture mounting hole is by array pitch between the different anchor pole cord clip tool adjustment anchor pole of installation.Different anchor pole fixture mounting holes and anchor cable fixture mounting hole are corresponding from different anchor pole fixture, anchor cable fixture, and anchor pole fixture mounting hole is by array pitch between the different anchor pole fixture adjustment anchor pole of installation.
Principle of work of the present invention:
After Underground Engineering Excavation, because terrestrial stress discharges, country rock produces to the radial displacement in hole, and the redistribution of country rock internal stress, produces tension and shear stress, forms new crack.At this time anchor pole and cable bolting structure can be subject to tensile shear effect.For the tensile shear effect that simulation supporting construction is subject to, this testing machine has been equipped with the vertical tension and compression system of anchoring body, horizontal shear system and anchor shaft anchor cable cutting system, the tensile shear power that regulates anchor pole and anchor cable to be subject to by servo hydraulic control system.
The vertical tension and compression system of testing machine anchoring body can be controlled the upper and lower vertical loading reaction plate of lifting by displacement.Concrete operations are as follows: when vertical loading reaction plate is fixed on mobile fixedly leading screw by upper lower nut instantly, unclamp the feed screw nut of vertical loading reaction plate, its position of lift adjustment by Vertical Cylinders is to testing requirements.Equally, when upper vertical loading reaction plate is fixed on mobile fixedly leading screw by upper lower nut, unclamp the feed screw nut of lower vertical loading reaction plate, by its position of lift adjustment of Vertical Cylinders.
During the vertical tension and compression system of testing machine isolated operation anchoring body, anchoring body test specimen is fixed by lower vertical loading reaction plate, two Vertical Cylinders promote upper vertical loading reaction plate and drive surperficial country rock test specimen to move up, can carry out anchor shaft anchor cable Erichsen test, anchor shaft anchor cable bottom anchor can be carried out anchor shaft anchor cable anchoring pull-out test in anchoring test specimen.When upper vertical loading reaction plate nut is fixedly time, two Vertical Cylinders promote lower vertical loading reaction plates and move down, and can carry out large-tonnage compression test to anchoring body test specimen or bearing structure.Instantly vertical loading reaction plate is fixed anchoring test specimen, and upper vertical loading reaction plate fixedly time, can be locked anchor nut by dial torque wrench, applies anchoring prestress.
Horizontal shear system can be simulated the reinforcing effect of anchoring body anchor pole and anchor cable under shear stress effect, during test, by shearing oil cylinder, applies the leading flank top that cross shear acts on anchoring body, and counter-force piece applies counter-force and acts on trailing flank bottom.
Operation level cutting system tension and compression system vertical with anchoring body can be carried out tensile shear compbined test to anchor shaft anchor cable simultaneously, and bottom anchor test specimen can carry out large-scale crack rock anchoring property by simulated field wall-rock crack to be tested.
In order to detect the shear resistance of anchor pole or anchor cable, this testing machine has been equipped with anchor shaft anchor cable cutting system, regulates the stroke of two cross cylinders by servo-hydraulic Control experiment platform, is promoted to shear the size that moves horizontally to control shearing force of facility by cross cylinder.
This testing machine leaves anchor shaft anchor cable fixture mounting hole, by changing different anchor shaft anchor cable fixtures, can carry out between anchor shaft anchor cable difference array pitch coupling stress deformation and test, anchor pole, Application of Combined Support with Anchor are carried out to stress deformation analysis, mainly study the anchor pole of different model, the stress deformation of anchor cable array configuration coupling situation.
Testing machine has anchoring test specimen track pusher, and the anchoring test specimen of making can move in testing machine easily, for convenience detach after off-test.
Beneficial effect of the present invention:
(1) the multifunctional examining test that apparatus of the present invention can realize anchor pole, anchorage cable anchoring performance is tested, and mainly comprises anchor shaft anchor cable Erichsen test, the test of anchor shaft anchor cable pretightning force, anchor shaft anchor cable anchoring pull-out test, anchor shaft anchor cable tensile shear compbined test, the test of large-scale crack rock anchoring property etc.
(2) test unit can load and also can load by power by displacement, when loading, displacement can simulate the anchoring support structure stress feature under country rock different distortion velocity conditions, can simulated ground stress and the effect of anchoring pretightning force when power loads, can provide stretching, shearing and pretension test overall process power-displacement time-history curves.
(3) test unit can be realized anchor pole, the test of anchor cable coupling stress deformation, and anchor pole, Application of Combined Support with Anchor are carried out to stress deformation analysis, mainly studies the anchor pole of different model, the stress deformation of anchor cable array configuration coupling situation.By above-mentioned test, can simulate more truly rationality and the security of supporting construction in the middle of actual underground works.
(4) test unit can be realized supporting combined member Experiment of Mechanical Behavior, analyze various girder steels, steel band, pallet, allow power arc plate, allow the mechanical property of the support units such as pressure ring, anchor cable lock, nut, packing ring, for engineering practice provides the guidance of a science.
(5) test unit can be realized anchoring force-bearing of surrounding rock mass Coupling Deformation test under supporting combined member various combination mode, under different support unit matching relationships, stress deformation by each member in loading procedure is monitored, analyze its combination stressed performance, adjust and coordinate parameter, realize stress deformation coupling, for the safety and stability of underground works provides a rational supporting scheme.
(6) test unit has anchoring test specimen track pusher, and the anchorage model of making can move in testing machine easily, for convenience detach after off-test; Be equipped with advanced feeding hydraulic pressure and take loading system and displacement measurement system, realize computing machine high precision in control test overall process.
Accompanying drawing explanation
Fig. 1 is testing machine structure schematic diagram of the present invention;
Fig. 2 is the front view of Fig. 1;
Fig. 3 is the side view of Fig. 1;
Fig. 4 is the vertical view of Fig. 1;
Fig. 5 is the structural representation of anchor pole cutting system;
Fig. 6 is the structural representation of vertical loading reaction plate.
1. limiting plate, 2. anchor cable, 3. anchor pole, 4. feed rod leads, 5. move fixedly leading screw, 6. limit sensors, 7. displacement transducer, 8. go up vertical loading reaction plate, 9. descend vertical loading reaction plate, 10. pull bar, 11. shear reaction plate, 12. vertical loading oil cylinders, 13. Hydraulic Stations, 14. console computers, 15. model rails, 16. pedestals, 17. base plates, 18. pallets, 19. nuts, 20. surperficial country rock test specimens, 21. pulleys, 22. shear oil cylinder, 23. anchoring test specimens, 24. counter-force pieces, 25. shearing component devices, 26. cross cylinders, 27. bolts, 28. reaction frames, 29. shear facility, 30. anchor pole fixture mounting holes, 31. anchor cable fixture mounting holes, 32. guiding feed rod mounting holes, 33. move fixedly leading screw mounting hole, 34. vertical loading oil cylinder mounting holes, 35. bases.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further described.
A kind of deep wall rock anchoring property multifunctional test machine, in conjunction with Fig. 1 to Fig. 6, comprise servo hydraulic control system, the vertical tension and compression system of anchoring body, horizontal shear system, anchor shaft anchor cable cutting system, servo hydraulic control system is connected with the hydraulic jack of anchor shaft anchor cable cutting system with the vertical tension and compression system of anchoring body, horizontal shear system respectively.
Described servo-hydraulic Loading Control System comprises Hydraulic Station 13 and console computer 14, servo-hydraulic Loading Control System is located at a side of pedestal 16, by high-pressure oil pipe, be connected with the hydraulic jack of vertical tension and compression system, horizontal shear system, anchor pole lateral shear system, in 13 pairs of other systems of console computer 14 control Hydraulic Stations, give oil mass and the recirculating oil quantity of oil cylinder are controlled.
Described anchor shaft anchor cable cutting system comprises two cross cylinders 26, two reaction frames 28, bolts 27 and shears facility 29, wherein a side of cross cylinder 26 is arranged on reaction frame 28 and with shearing facility 29 and is connected, opposite side is connected and is connected with high-pressure oil pipe with lower vertical loading reaction plate 9, two reaction frames 28 connect, and cross cylinder 26 is connected with servo-hydraulic Control experiment platform by high-pressure oil pipe.The opposite side of cross cylinder 26 is connected with lower vertical loading reaction plate 9 by bolt, and two reaction frames 28 connect by four thru-bolts 27.
Described horizontal shear system comprises shears oil cylinder 22, counter-force piece 24, shear reaction plate 11, base plate 17, wherein shear oil cylinder 22 and be connected to the middle and upper part of shearing reaction plate 11, the piston of shearing oil cylinder 22 is provided with shearing component device 25, while being used for anchoring test specimen 23 to shear, transmit power, counter-force piece 24 is connected with the bottom of shearing reaction plate 11, shearing reaction plate 11 for two is fixed together by four long draws 10, and be connected with base plate 17, pulley 21 is located in the circular port that base plate 17 reserves, between pulley 21, array pitch can regulate by the circular port on base plate 17, pulley 21 coordinates with model rail 15, along model rail 15, anchoring test specimen 23 is moved in and out.Shear oil cylinder 22 and be connected with shearing reaction plate 11 by bolt, counter-force piece 24 is connected with the bottom of shearing reaction plate 11 by bolt.The anchoring test specimen 23 of anchor pole 3, anchor cable 2 is placed on the base plate 17 of lateral shear system.
The vertical tension and compression system of described anchoring body comprises two vertical loading oil cylinders 12, four movements fixedly leading screw 5, four guiding feed rods 4, base 35, limiting plate 1, limit sensors 6, displacement transducer 7, upper vertical loading reaction plate 8, lower vertical loading reaction plate 9.Wherein mobile fixedly leading screw 5, guiding feed rod 4 tops are connected with limiting plate 1 respectively, bottom is connected with base 35 respectively, base 35 is connected with pedestal 16, mobile fixedly leading screw 5, guiding feed rod 4 respectively by movement fixedly leading screw mounting hole 33 be connected with lower vertical loading reaction plate 9 with upper vertical loading reaction plate 8 with the feed rod mounting hole 32 that leads, the cylinder body of two vertical loading oil cylinders 12 is connected with lower vertical loading reaction plate 9.
Described upper vertical loading reaction plate 8 and lower vertical loading reaction plate 9 are provided with displacement transducer 7, the displacement that one end of displacement transducer 7 is connected, is used for measuring upper and lower vertical loading reaction plate with base 35, the other end is connected with console computer 14, to provide load--and displacement curve; Limit sensors 6 is located on limiting plate 1 upper vertical loading reaction plate 8 below, limit sensors 6 is connected with console computer 14, the safe distance of the limit sensors upper vertical loading reaction plate 8 of 6 monitoring and limiting plate 1 stops the running of vertical loading oil cylinder 12 in the time being less than safe distance.Anchor cable 2 and anchor pole 3 bottoms are anchored in anchoring test specimen 23, and top can tray 18 at the exposure end of country rock test specimen 20, and applies a pretightning force by nut 19, and can increase the support units such as net and steel band.
Described upper vertical loading reaction plate 8 and lower vertical loading reaction plate 9 are respectively monoblock cast fin-plate type structure in length and breadth, the left and right sides is provided with lug structure, is provided with vertical loading oil cylinder mounting hole 34, wherein one side is plane and is respectively equipped with anchor pole fixture mounting hole 30, anchor cable fixture mounting hole 31, and anchor pole fixture mounting hole 30 is by array pitch between the different anchor pole cord clip tool adjustment anchor pole of installation, anchor cable.Different anchor pole fixture mounting holes 30 and anchor cable fixture mounting hole 31 are corresponding from different anchor pole fixture, anchor cable fixture, and bolt interval can regulate by changing different anchor pole fixtures.
Although above-mentioned, by reference to the accompanying drawings the embodiment of invention is described; but be not limiting the scope of the invention; one of ordinary skill in the art should be understood that; on the basis of technical scheme of the present invention, those skilled in the art do not need to pay various modifications that creative work can make or distortion still in protection scope of the present invention.
Claims (6)
1. a deep wall rock anchoring property multifunctional test machine, it is characterized in that, comprise servo hydraulic control system, the vertical tension and compression system of anchoring body, horizontal shear system, anchor shaft anchor cable cutting system, servo hydraulic control system is connected with the hydraulic jack of anchor shaft anchor cable cutting system with the vertical tension and compression system of anchoring body, horizontal shear system respectively;
Described servo hydraulic control system comprises Hydraulic Station and console computer, servo hydraulic control system is located at a side of pedestal, by high-pressure oil pipe, be connected with the hydraulic jack of vertical tension and compression system, horizontal shear system, anchor shaft anchor cable cutting system, console computer is controlled Hydraulic Station controlling to oil mass and recirculating oil quantity oil cylinder in vertical tension and compression system, horizontal shear system, anchor shaft anchor cable cutting system;
Described anchor shaft anchor cable cutting system comprises two cross cylinders, two reaction frames, bolt and shearing facility, wherein a side of cross cylinder is arranged on reaction frame and with shearing facility and is connected, opposite side is connected and is connected with high-pressure oil pipe with lower vertical loading reaction plate, two reaction frames connect, cross cylinder is connected with servo hydraulic control system by high-pressure oil pipe, the opposite side of cross cylinder is connected with lower vertical loading reaction plate by bolt, and two reaction frames connect by four thru-bolts.
2. deep wall rock anchoring property multifunctional test machine as claimed in claim 1, it is characterized in that, described horizontal shear system comprises shearing oil cylinder, counter-force piece, shear reaction plate, base plate, wherein shear oil cylinder and be connected to the middle and upper part of shearing reaction plate, the piston of shearing oil cylinder is provided with shearing component device, while being used for anchoring test specimen to shear, transmit power, counter-force piece is connected with the bottom of shearing reaction plate, shearing reaction plate for two is fixed together by four long draws, and be connected with base plate, pulley is located in the circular port that base plate reserves, between pulley, array pitch regulates by the circular port on base plate, pulley coordinates with model rail, along model rail, anchoring test specimen is moved in and out, shearing oil cylinder is connected with shearing reaction plate by bolt, counter-force piece is connected with the bottom of shearing reaction plate by bolt.
3. deep wall rock anchoring property multifunctional test machine as claimed in claim 1, it is characterized in that, the vertical tension and compression system of described anchoring body comprises two vertical loading oil cylinders, four movements are leading screw fixedly, four guiding feed rods, base, limiting plate, limit sensors, displacement transducer, upper vertical loading reaction plate, lower vertical loading reaction plate, wherein move fixedly leading screw, guiding feed rod top is connected with limiting plate respectively, bottom is connected with base respectively, base is connected with pedestal, mobile fixedly leading screw, guiding feed rod respectively by movement fixedly leading screw mounting hole be connected with lower vertical loading reaction plate with upper vertical loading reaction plate with the feed rod mounting hole that leads, the cylinder body of two vertical loading oil cylinders is connected with lower vertical loading reaction plate.
4. deep wall rock anchoring property multifunctional test machine as claimed in claim 3, it is characterized in that, base is connected with pedestal by bolt, upper vertical loading reaction plate, lower vertical loading reaction plate are connected with mobile fixedly leading screw by nut, two vertical loading oil cylinders are connected with lower vertical loading reaction plate by bolt, and the position of upper vertical loading reaction plate and lower vertical loading reaction plate regulates by vertical loading oil cylinder and nut.
5. the deep wall rock anchoring property multifunctional test machine as described in claim 3 or 4, it is characterized in that, described upper vertical loading reaction plate and lower vertical loading reaction plate are provided with displacement transducer, one end of displacement transducer is connected with base, be used for measuring the displacement of upper and lower vertical loading reaction plate, the other end is connected with console computer, to provide load--displacement curve; Limit sensors is located on the upper vertical loading reaction plate below limiting plate, and limit sensors is connected with console computer.
6. the deep wall rock anchoring property multifunctional test machine as described in claim 3 or 4, it is characterized in that, described upper vertical loading reaction plate and lower vertical loading reaction plate are respectively monoblock cast fin-plate type structure in length and breadth, the left and right sides is provided with lug structure, is provided with vertical loading oil cylinder mounting hole, wherein one side is plane, and being respectively equipped with anchor pole fixture mounting hole, anchor cable fixture mounting hole, anchor pole fixture mounting hole is by array pitch between the different anchor pole fixture adjustment anchor pole of installation.
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| CN201210108853.8A CN102621010B (en) | 2012-04-13 | 2012-04-13 | Multifunctional testing machine for deep surrounding rock anchoring performance |
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| CN201210108853.8A CN102621010B (en) | 2012-04-13 | 2012-04-13 | Multifunctional testing machine for deep surrounding rock anchoring performance |
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