True triaxial anchor rod dynamic drawing test system and test method

Abstract

The invention provides a true triaxial anchor rod dynamic drawing test system and test method, and relates to the technical field of anchor rod dynamic drawing test. The true triaxial anchor rod dynamic drawing test system comprises a test platform, the lower side of the test platform is fixedly connected with supporting legs, the upper side of the test platform is provided with a rock sample, and the upper sides of the left end and the right end of the test platform and the upper sides of the front end and the rear end of the test platform are fixedly connected with a first fixing plate and a second fixing plate respectively. First hydraulic rods are fixedly connected to the outer sides of the first fixing plates on the left side and the right side correspondingly, and first moving plates are fixedly connected to the outer ends of the first hydraulic rods. By arranging the testing platform, the left and right pressing plates, the front and rear pressing plates and the top pressing plate, triaxial extrusion on a rock sample is facilitated, and by means of an impact hammer block, a vertical plate, upper and lower side clamping plates and a screw rod, the impact hammer block is conveniently controlled to impact the bottom and the top of an anchor rod, so that the testing range of the testing device is increased.

Description

Technical Field

[0001] The present invention relates to the technical field of bolt dynamic pull-out testing, and specifically to a true triaxial bolt dynamic pull-out testing system and test method. Background Technique

[0002] With the gradual depletion of shallow coal resources, China has entered the state of deep coal resource mining. The deeper the mining depth, the more serious the rock burst hazard. Bolt support is the main support method for preventing rock bursts in roadway support in China. The anchoring force is one of the basic parameters for the design of bolt anti-rock burst support.

[0003] After retrieval, the Chinese patent with the application number "CN202210620009.7", specifically a true triaxial bolt dynamic anchoring force pull-out test device and method for coal mines, includes a test platform, a three-way constraint frame, a magnetic levitation left and right confining pressure device, a magnetic levitation front and rear confining pressure device, a magnetic levitation upper and lower axial pressure device, a cuboid rock sample, a bolt, a drop hammer, a lifting device and a computer. The magnetic levitation left and right confining pressure device, the magnetic levitation front and rear confining pressure device and the magnetic levitation upper and lower axial pressure device are all arranged in the three-way constraint frame and enclose a cuboid pressure application space. The cuboid rock sample is arranged in the cuboid pressure application space. The bolt vertically penetrates and is anchored in the middle of the cuboid rock sample. The drop hammer is slidably sleeved on the bolt. The lifting device is connected to the drop hammer. The computer is respectively signal-connected to the magnetic levitation left and right confining pressure device, the magnetic levitation front and rear confining pressure device, the magnetic levitation upper and lower axial pressure device and the lifting device.

[0004] When the prior art conducts a pull-out test on a bolt, a lifting device is used to control the drop of the drop hammer to impact the bolt, but the impact position on the bolt is fixed. In actual engineering, for working conditions such as rockfall impact and blasting vibration, the bottom of the bolt needs to be impacted. In underground engineering, when the upper support structure is impacted, the top of the bolt will be affected first, and the top of the bolt needs to be impacted for testing. The applicability of the testing device is not high. Summary of the Invention

[0005] Technical Problems to be Solved

[0006] Aiming at the deficiencies of the prior art, the present invention provides a true triaxial bolt dynamic pull-out testing system and test method, which solves the problem of low applicability of the testing device.

[0007] Technical Solution

[0008] To achieve the above object, the present invention is realized through the following technical solutions: A true triaxial anchor dynamic pull-out test system includes a test platform. A support leg is fixedly connected to the lower side of the test platform. A rock specimen is arranged on the upper side of the test platform. Fixing plates one and two are respectively fixedly connected to the upper sides of the left and right ends and the front and rear ends of the test platform. Hydraulic cylinders one are fixedly connected to the outer sides of the fixing plates one on both sides. A moving plate one is fixedly connected to the outer end of the hydraulic cylinder one. A pressure sensor one is fixedly connected to the outer side of the moving plate one. A left and right pressing plate is fixedly connected to the outer end of the pressure sensor one. Hydraulic cylinders two are fixedly connected to the outer ends of the fixing plates two on the front and rear sides. Moving plates two are fixedly connected to the outer ends of the hydraulic cylinders two at the front and rear ends. A pressure sensor two is fixedly connected to the outer side of the moving plate two. A front and rear pressing plate is fixedly connected to the outer side of the pressure sensor two. A top frame is fixedly connected to the upper side of the fixing plate one. A hydraulic cylinder three is fixedly connected to the lower side of the top frame. A top pressing plate is fixedly connected to the lower end of the hydraulic cylinder three. An impact unit is arranged on the lower side of the test platform. The anchor body is anchored in the rock specimen;

[0009] The impact unit includes two sliding grooves. Both of the sliding grooves are opened on the lower side of the test platform. Sliders are slidably connected to the inner sides of the left and right ends of the sliding grooves. Vertical plates are fixedly connected to the lower sides of both sides of the sliders. A lifting groove is opened on the outer side of the vertical plate. Lifting blocks are slidably connected to the inner sides of the upper and lower ends of the lifting groove. Lifting plates are fixedly connected to the outer sides of the upper and lower lifting blocks. Fixing rods are fixedly connected to the outer sides of the left and right lifting plates. A clamping plate is fixedly connected to the outer side of the fixing rod. An impact hammer block is arranged on the outer side of the anchor body. A lifting component is arranged on the outer side of the impact hammer block.

[0010] Preferably, a bidirectional screw rod is rotatably connected to the inner side of the lifting groove. Opposite threads are arranged at both ends of the bidirectional screw rod. The two ends of the bidirectional screw rod are respectively threadedly connected to the upper and lower lifting blocks. A motor one is fixedly connected to the lower side of the vertical plate. An electric push rod one is fixedly connected between the outer side of the slider and the inner wall of the sliding groove.

[0011] Preferably, the lifting component includes a guide plate. A guide block is slidably connected to the outer side of the guide plate. Two connecting plates one are fixedly connected between the two vertical plates. A threaded rod is rotatably connected between the two connecting plates one. Two mounting blocks are fixedly connected to the side of the connecting plate two close to the impact hammer block. Fixed cylinders are fixedly connected to the left and right sides of the impact hammer block. A telescopic plate is arranged inside the fixed cylinder. A motor two is fixedly connected to the lower side of the connecting plate one.

[0012] Preferably, the threaded rod is threadedly connected to the connecting plate two. The output end of the motor two is fixedly connected to the upper end of the threaded rod.

[0013] Preferably, limiting holes are formed in both the front and rear sides of the telescopic plate, limiting rods are arranged on the outer sides of the mounting blocks on both the front and rear sides, rectangular grooves are formed at the outer ends of the limiting rods, inclined plates are rotatably connected to the inner sides of the rectangular grooves on both the front and rear sides, a rotating block is rotatably connected to the outer side of the upper end of the inclined plate, a top block is fixedly connected to the outer side of the rotating block, a control block is fixedly connected to the outer side of the top block, and an electric push rod II is fixedly connected between the control block and the second connecting plate.

[0014] Preferably, the limiting rod is slidably connected with the mounting block, and the limiting rod is arranged in a matching manner with the limiting hole.

[0015] Preferably, a perforation is formed in the outer side of the clamping plate.

[0016] A test method for dynamic pull-out test of a true triaxial anchor rod includes the following steps:

[0017] S1. Place the rock sample on the upper side of the test platform, anchor the main body of the anchor rod to the rock sample, and the lower end of the main body of the anchor rod passes through the lower side of the test platform;

[0018] S2. Control the first hydraulic rod, the second hydraulic rod and the third hydraulic rod to drive the left and right pressing plates, the front and rear pressing plates and the top pressing plate to extrude the rock sample;

[0019] S3. Control the electric push rod I to control the clamping plate to clamp the main body of the anchor rod, control the second motor to drive the impact hammer block to rise, then control the electric push rod II to make the impact hammer block impact the bottom clamping plate, then control the second motor to control the mounting block to move to the telescopic plate, and control the electric push rod II to drive the limiting rod to limit the telescopic plate, and control the impact hammer block to rise to impact the top clamping plate.

[0020] Beneficial effects

[0021] The present invention provides a true triaxial anchor rod dynamic pull-out test system and a test method. The following beneficial effects are achieved:

[0022] By providing a test platform, left and right pressing plates, front and rear pressing plates, and a top pressing plate, it is convenient to perform triaxial extrusion on the rock sample, and by the impact hammer block, the vertical plate, the upper and lower clamping plates and the screw rod, it is convenient to control the impact hammer block to impact the bottom and top of the anchor rod, so as to increase the test range of the test device.

[0023] By providing a bidirectional threaded rod, a lifting block, a lifting plate, a vertical plate and a first motor, it is convenient to control the up and down movement of the clamping plate, convenient to adjust the impact position of the anchor rod, and increase the applicability of the test. Description of the drawings

[0024] Figure 1The overall three-dimensional structure diagram of a true triaxial anchor rod dynamic pull-out test system proposed by the present invention;

[0025] Figure 2 The partial three-dimensional combined diagram of a true triaxial anchor rod dynamic pull-out test system proposed by the present invention;

[0026] Figure 3 The front three-dimensional structure diagram of a true triaxial anchor rod dynamic pull-out test system proposed by the present invention;

[0027] Figure 4 The three-dimensional structure diagram of the impact unit in a true triaxial anchor rod dynamic pull-out test system proposed by the present invention;

[0028] Figure 5 The partial three-dimensional structure diagram of the impact unit in a true triaxial anchor rod dynamic pull-out test system proposed by the present invention;

[0029] Figure 6 The partial sectional three-dimensional structure diagram of the impact unit in a true triaxial anchor rod dynamic pull-out test system proposed by the present invention.

[0030] Wherein, 1, test platform; 2, support leg; 3, rock specimen; 4, anchor rod main body; 5, impact unit; 6, first fixing plate; 7, first hydraulic rod; 8, first moving plate; 9, first pressure sensor; 10, left and right pressing plates; 11, second fixing plate; 12, second hydraulic rod; 13, second moving plate; 14, second pressure sensor; 15, front and rear pressing plates; 16, top frame; 17, third hydraulic rod; 18, top pressing plate; 501, chute; 502, slider; 503, first electric push rod; 504, vertical plate; 505, lifting groove; 506, lifting block; 507, lifting plate; 508, fixing rod; 509, clamping plate; 510, perforation; 511, first motor; 512, first connecting plate; 513, second motor; 514, guide plate; 515, guide block; 516, second connecting plate; 517, threaded rod; 518, fixed cylinder; 519, telescopic plate; 520, limiting hole; 521, mounting block; 522, limiting rod; 523, rectangular groove; 524, inclined plate; 525, rotating block; 526, top block; 527, control block; 528, second electric push rod; 529, bidirectional screw rod; 530, impact hammer block. Detailed implementation manners

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] As Figure 1 - Figure 6 shown, an embodiment of the present invention provides a true triaxial anchor dynamic pull-out test system, including a test platform 1. A support leg 2 is fixedly connected to the lower side of the test platform 1. A rock specimen 3 is arranged on the upper side of the test platform 1. A first fixing plate 6 and a second fixing plate 11 are fixedly connected to the upper sides of the left and right ends and the front and rear ends of the test platform 1 respectively. Hydraulic cylinders 7 are fixedly connected to the outer sides of the first fixing plates 6 on both left and right sides. A first moving plate 8 is fixedly connected to the outer ends of the hydraulic cylinders 7. A first pressure sensor 9 is fixedly connected to the outer side of the first moving plate 8. A left and right pressing plate 10 is fixedly connected to the outer end of the first pressure sensor 9. Hydraulic cylinders 12 are fixedly connected to the outer ends of the second fixing plates 11 on both front and rear sides. Second moving plates 13 are fixedly connected to the outer ends of the hydraulic cylinders 12 at both front and rear ends. A second pressure sensor 14 is fixedly connected to the outer end of the second moving plate 13. A front and rear pressing plate 15 is fixedly connected to the outer side of the second pressure sensor 14. A top frame 16 is fixedly connected to the upper side of the first fixing plate 6. A hydraulic cylinder 17 is fixedly connected to the lower side of the top frame 16. A top pressing plate 18 is fixedly connected to the lower end of the hydraulic cylinder 17. An impact unit 5 is arranged on the lower side of the test platform 1. The anchor main body 4 is anchored in the rock specimen 3. During the triaxial test, control the hydraulic cylinder 7 to drive the first moving plate 8 to move. The first moving plate 8 drives the left and right pressing plate 10 on the first pressure sensor 9 to move, so that the left and right pressing plates 10 on both left and right sides squeeze the rock specimen 3. Then control the hydraulic cylinder 12 to drive the second moving plate 13 to move. The second moving plate 13 drives the front and rear pressing plate 15 on the second pressure sensor 14 to move, so that the front and rear pressing plates 15 squeeze the front and rear sides of the rock specimen 3. Then control the hydraulic cylinder 17 to drive the top pressing plate 18 to descend, so that the top pressing plate 18 squeezes the bottom of the rock specimen 3, facilitating the triaxial direction test.

[0033] The impact unit 5 includes two sliding grooves 501, both of which are opened on the lower side of the test platform 1. The inner sides of the left and right ends of the sliding groove 501 are both slidably connected with sliders 502. The lower sides of the two sliders 502 are both fixedly connected with vertical plates 504. The outer sides of the vertical plates 504 are provided with lifting grooves 505. The inner sides of the upper and lower ends of the lifting grooves 505 are both slidably connected with lifting blocks 506. The outer sides of the upper and lower lifting blocks 506 are both fixedly connected with lifting plates 507. The outer sides of the left and right lifting plates 507 are both fixedly connected with fixing rods 508. The outer sides of the fixing rods 508 are fixedly connected with clamping plates 509. An impact hammer block 530 is arranged on the outer side of the anchor rod main body 4. A lifting assembly is arranged on the outer side of the impact hammer block 530. A through hole 510 is opened on the outer side of the clamping plate 509. An electric push rod 503 is fixedly connected between the outer side of the slider 502 and the inner wall of the sliding groove 501. During the pull-out test, the electric push rod 503 is controlled. The electric push rod 503 drives the slider 502 to move. The slider 502 drives the vertical plate 504 to move. The vertical plate 504 drives the clamping plate 509 on the fixing rod 508 to move, so that the clamping plates 509 on the left and right sides clamp the anchor rod main body 4, facilitating the subsequent dynamic pull-out impact. Then, the impact hammer block 530 is controlled to impact the bottom and top of the anchor rod main body 4 by controlling the lifting assembly.

[0034] The lifting component includes a guide plate 514. A guide block 515 is slidably connected to the outer side of the guide plate 514. A second connecting plate 516 is fixedly connected to the outer side of the guide block 515. Two first connecting plates 512 are fixedly connected between the two vertical plates 504. A threaded rod 517 is rotatably connected between the two first connecting plates 512. Two mounting blocks 521 are fixedly connected to the side of the second connecting plate 516 close to the impact hammer block 530. Fixed cylinders 518 are fixedly connected to the left and right sides of the impact hammer block 530. A telescopic plate 519 is arranged inside the fixed cylinder 518. A second motor 513 is fixedly connected to the lower side of the first connecting plate 512. The threaded rod 517 is threadedly connected to the second connecting plate 516. The output end of the second motor 513 is fixedly connected to the upper end of the threaded rod 517. Limit holes 520 are formed in the front and rear sides of the telescopic plate 519. Limit rods 522 are arranged on the outer sides of the front and rear mounting blocks 521. Rectangular grooves 523 are formed at the outer ends of the limit rods 522. Inclined plates 524 are rotatably connected to the inner sides of the front and rear rectangular grooves 523. A rotating block 525 is rotatably connected to the outer side of the upper end of the inclined plate 524. A top block 526 is fixedly connected to the outer side of the rotating block 525. A control block 527 is fixedly connected to the outer side of the top block 526. An electric push rod two 528 is fixedly connected between the control block 527 and the second connecting plate 516. The limit rod 522 is slidably connected to the mounting block 521. The limit rod 522 is adapted to the limit hole 520. When impacting the bottom of the anchor rod body 4, control the second motor 513. The second motor 513 drives the threaded rod 517 to rotate. The threaded rod 517 drives the second connecting plate 516 to rise. The second connecting plate 516 drives the telescopic plate 519 to rise. The telescopic plate 519 drives the fixed cylinder 518 to rise. The fixed cylinder 518 drives the impact hammer block 530 to rise. Then control the electric push rod two 528 to drive the control block 527 to descend. The control block 527 drives the inclined plate 524 to rotate. Due to the symmetrical structure of the front and rear inclined plates 524, the inclined plate 524 drives the limit rod 522 to move, so that the front and rear limit rods 522 move away from each other. The limit rod 522 is separated from the telescopic plate 519. Under the action of gravity, the impact hammer block 530 impacts the bottom clamping plate 509 to complete the bottom pull-out test of the anchor rod body 4. When testing the top of the anchor rod body 4, control the second connecting plate 516 to descend. The second connecting plate 516 drives the mounting block 521 to descend. Then control the electric push rod two 528 to drive the limit rod 522 to insert into the limit hole 520. Then control the second connecting plate 516 to rise, so that the second connecting plate 516 drives the impact hammer block 530 to rise and contact the upper clamping plate 509, and the top of the anchor rod body 4 is impacted to increase the test range.

[0035] A bidirectional screw rod 529 is rotatably connected to the inner side of the lifting groove 505. Opposite threads are provided at both ends of the bidirectional screw rod 529. Both ends of the bidirectional screw rod 529 are threadedly connected to the upper and lower lifting blocks 506 respectively. A first motor 511 is fixedly connected to the lower side of the vertical plate 504. During the test, control the first motor 511 to drive the bidirectional screw rod 529 to rotate. The bidirectional screw rod 529 drives the upper and lower lifting blocks 506 to move towards each other. The lifting blocks 506 drive the lifting plate 507 to move. Under the action of the fixed rod 508, control the position of the clamping plate 509 to facilitate controlling the position of the impact on the anchor rod body 4 and increase the applicability of the test.

[0036] A test method for a true triaxial anchor rod dynamic pull-out test includes the following steps:

[0037] S1. Place the rock specimen 3 on the upper side of the test platform 1. Anchor the anchor rod body 4 to the rock specimen 3. The lower end of the anchor rod body 4 passes through the lower side of the test platform 1.

[0038] S2. Control the first hydraulic rod 7, the second hydraulic rod 12 and the third hydraulic rod 17 to drive the left and right pressing plates 10, the front and rear pressing plates 15 and the top pressing plate 18 to extrude the rock specimen 3.

[0039] S3. Control the first electric push rod 503 to control the clamping plate 509 to clamp the anchor rod body 4. Control the second motor 513 to drive the impact hammer block 530 to rise. Then control the second electric push rod 528 to make the impact hammer block 530 impact the bottom clamping plate 509. Then control the second motor 513 to control the mounting block 521 to move to the telescopic plate 519 and control the second electric push rod 528 to drive the limiting rod 522 to limit the telescopic plate 519. Control the impact hammer block 530 to rise and impact the top clamping plate 509.

[0040] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A true triaxial anchor bolt dynamic pull-out test system, comprising a test platform (1), wherein a support leg (2) is fixedly connected to the lower side of the test platform (1), a rock sample (3) is arranged on the upper side of the test platform (1), a fixed plate 1 (6) and a fixed plate 2 (11) are fixedly connected to the upper sides of the left and right ends and the upper sides of the front and rear ends of the test platform (1), respectively, the outer sides of the fixed plates 1 (6) on the left and right sides are fixedly connected to hydraulic rods 1 (7), the outer ends of the hydraulic rods 1 (7) are fixedly connected to movable plates 1 (8), the outer sides of the movable plates 1 (8) are fixedly connected to pressure sensors 1 (9), and the outer sides of the pressure sensors 1 (9) are fixedly connected to the outer sides of the movable plates 1 (8). The ends are fixedly connected with left and right pressure plates (10), the outer ends of the fixed plates (11) on the front and rear sides are fixedly connected with hydraulic rods (12), the outer ends of the hydraulic rods (12) on the front and rear ends are fixedly connected with movable plates (13), the outer ends of the movable plates (13) are fixedly connected with pressure sensors (14), the outer sides of the pressure sensors (14) are fixedly connected with front and rear pressure plates (15), the upper side of the fixed plate (6) is fixedly connected with a top frame (16), the lower side of the top frame (16) is fixedly connected with hydraulic rods (17), and the lower end of the hydraulic rods (17) is fixedly connected with a top pressure plate (18), characterized in that: An impact unit (5) is provided on the lower side of the test platform (1), and the anchor rod body (4) is anchored to the rock sample (3); The impact unit (5) comprises two slide grooves (501), the two slide grooves (501) are both provided at the lower side of the test platform (1), the inner sides of the left and right ends of the slide grooves (501) are slidably connected with sliders (502), the lower sides of the sliders (502) on both sides are fixedly connected with vertical plates (504), the outer sides of the vertical plates (504) are provided with lifting grooves (505), the inner sides of the upper and lower ends of the lifting grooves (505) are slidably connected with lifting blocks (506), the outer sides of the lifting blocks (506) on the upper and lower sides are fixedly connected with lifting plates (507), the outer sides of the lifting plates (507) on the left and right sides are fixedly connected with fixed rods (508), the outer sides of the fixed rods (508) are fixedly connected with clamping plates (509), the outer side of the anchor rod body (4) is provided with an impact hammer block (530), and the outer side of the impact hammer block (530) is provided with a lifting assembly.

2. A true triaxial anchor dynamic pull-out test system according to claim 1, characterized in that: A bidirectional screw rod (529) is rotatably connected to the inner side of the lifting groove (505), and opposite threads are arranged at both ends of the bidirectional screw rod (529). The two ends of the bidirectional screw rod (529) are respectively threadedly connected to the upper and lower lifting blocks (506). A motor 1 (511) is fixedly connected to the lower side of the vertical plate (504), and an electric push rod 1 (503) is fixedly connected between the outer side of the slider (502) and the inner wall of the slide groove (501).

3. A true triaxial anchor dynamic pull-out test system according to claim 1, characterized in that: The lifting assembly comprises a guide plate (514), the outer side of the guide plate (514) is slidably connected to a guide block (515), the outer side of the guide block (515) is fixedly connected to a connecting plate 2 (516), two connecting plates 1 (512) are fixedly connected between the vertical plates (504) on both sides, a threaded rod (517) is rotatably connected between the two connecting plates 1 (512), two mounting blocks (521) are fixedly connected to a side of the connecting plate 2 (516) close to the impact hammer block (530), the left and right sides of the impact hammer block (530) are fixedly connected to a fixing cylinder (518), a telescopic plate (519) is provided on the inner side of the fixing cylinder (518), and a motor 2 (513) is fixedly connected to the lower side of the connecting plate 1 (512).

4. A true triaxial anchor dynamic pull-out test system according to claim 3, characterized in that: The threaded rod (517) is threadedly connected to the second connecting plate (516), and the output end of the second motor (513) is fixedly connected to the upper end of the threaded rod (517).

5. A true triaxial anchor dynamic pull-out test system according to claim 3, characterized in that: Limiting holes (520) are provided on both the front and rear sides of the telescopic plate (519); limiting rods (522) are provided on the outer sides of the mounting blocks (521) on the front and rear sides; rectangular grooves (523) are provided on the outer ends of the limiting rods (522); inclined plates (524) are rotatably connected to the inner sides of the rectangular grooves (523) on the front and rear sides; a rotating block (525) is rotatably connected to the outer side of the upper end of the inclined plate (524); a top block (526) is fixedly connected to the outer side of the rotating block (525); a control block (527) is fixedly connected to the outer side of the top block (526); and a second electric push rod (528) is fixedly connected between the control block (527) and the second connecting plate (516).

6. A true triaxial anchor dynamic pull-out test system according to claim 5, characterized in that: The limiting rod (522) is slidably connected to the mounting block (521), and the limiting rod (522) is adaptively arranged to the limiting hole (520).

7. A true triaxial anchor dynamic pull-out test system according to claim 1, characterized in that: The outer side of the clamping plate (509) is provided with a through hole (510).

8. A test method for a true triaxial anchor dynamic pull-out test, according to a true triaxial anchor dynamic pull-out test system according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1. placing a rock sample (3) on the upper side of a test platform (1), anchoring an anchor rod body (4) to the rock sample (3), and allowing the lower end of the anchor rod body (4) to pass through the lower side of the test platform (1); S2, controlling hydraulic rod 1 (7), hydraulic rod 2 (12) and hydraulic rod 3 (17) to drive left and right pressure plates (10), front and rear pressure plates (15) and top pressure plate (18) to press the rock sample (3); S3, control the electric push rod 1 (503) to control the clamping plate (509) to clamp the anchor rod body (4), control the motor 2 (513) to drive the impact hammer block (530) to rise, and then control the electric push rod 2 (528) to make the impact hammer block (530) impact the bottom clamping plate (509), and then control the motor 2 (513) to control the mounting block (521) to move to the telescopic plate (519), and control the electric push rod 2 (528) to drive the limit rod (522) to limit the telescopic plate (519), and control the impact hammer block (530) to rise and impact the top clamping plate (509).

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