Anchor rod pull-out test device based on new grouting material

Abstract

The invention discloses an anchor rod pull-out test device based on a new grouting material, and belongs to the technical field of material detection, the anchor rod pull-out test device comprises a connecting mechanism, the connecting mechanism comprises an inner sleeve and a jacket structure, the jacket structure is clamped on an anchor rod, the jacket structure abuts against the inner wall of the inner sleeve, and the lower end of the inner sleeve is fixedly connected with a force application mechanism; the connecting mechanism further comprises a stand column, limiting grooves are formed in the two sides of the stand column respectively, limiting blocks are slidably connected into the limiting grooves, a mounting ring is fixedly connected to one sides of the limiting blocks, a rotating disc is rotatably connected into the mounting ring, a handle is rotatably installed on the upper surface of the rotating disc, and the rotating disc is fixedly connected to the top end of the clamping sleeve structure. The edge of the jacket structure is fixedly connected with an outer sleeve, and the outer sleeve is connected to the inner sleeve in a threaded and sleeving mode. It is guaranteed that the jack, the jacket structure, the inner sleeve and the outer sleeve are concentric with the anchor rod, and the stress center of the anchor rod is accurately determined and always kept consistent with the tension center of the jack.

Description

Technical Field

[0001] The invention belongs to the technical field of material detection, and in particular relates to an anchor rod pulling test device based on a new grouting material. Background Art

[0002] In many fields such as geotechnical engineering, mining, and building foundation reinforcement, anchor rods are an important anchoring support component. The reliability of their anchoring performance is directly related to the safety and stability of the project. Therefore, new grouting materials are continuously developed to improve the fixing effect of anchor rods. In order to detect and quantify the fixing effect of new grouting materials on anchor rods, an anchor rod pull-out test device based on new grouting materials is needed.

[0003] During the use of the traditional anchor pull-out test device, the jack and the jacket structure need to be put on the anchor, and the gap between the jacket structure and the anchor is filled with a sheet filling block. The filling block is wedged between the jacket structure and the anchor by a hammer to fix the jacket structure and the anchor. This fixing method cannot ensure the concentricity of the jacket structure, the jack and the anchor, resulting in uneven force on the anchor and eccentric force. This eccentric force will make the pull-out force data measured in the test unable to truly reflect the actual anchoring ability of the new grouting material on the anchor, thereby bringing great uncertainty to the engineering quality assessment. Summary of the invention

[0004] In response to the problems existing in the prior art, the present invention provides an anchor pull-out test device based on a new grouting material, which has the advantages of accurately determining the force center of the anchor and improving the detection accuracy. It solves the problem that the existing jacket structure and anchor fixing method cannot ensure the concentricity of the jacket structure, jack and anchor, resulting in uneven force on the anchor and eccentric force.

[0005] The present invention is achieved in this way. An anchor rod pull-out test device based on a new grouting material includes a connecting mechanism, wherein the connecting mechanism includes an inner sleeve and a jacket structure, the jacket structure is clamped on the anchor rod, the jacket structure is tightly pressed against the inner wall of the inner sleeve, and the lower end of the inner sleeve is fixedly connected to a force-applying mechanism; the connecting mechanism also includes a column, and limiting grooves are respectively provided on both sides of the column, and limiting blocks are slidably connected inside the limiting grooves, one side of the limiting block is fixedly connected to a mounting ring, a turntable is rotatably connected inside the mounting ring, a handle is rotatably installed on the upper surface of the turntable, the turntable is fixedly connected to the top of the jacket structure, the edge of the jacket structure is fixedly connected to an outer sleeve, and the outer sleeve is threadedly sleeved on the inner sleeve.

[0006] Preferably, the jacket structure comprises a clamping body and a bearing body, the clamping body comprises a plurality of arc-shaped plates, and gaps are provided between adjacent arc-shaped plates, and the outer surfaces of the arc-shaped plates are of a stepped structure.

[0007] Preferably, the clamping body is fixedly connected to the lower side of the carrier.

[0008] Preferably, a swivel is fixedly connected to the upper end of the clamp body, and the swivel is rotatably connected to the lower side of the carrier through a bearing.

[0009] Preferably, the outer sleeve comprises an upper sub-sleeve and a lower sub-sleeve, and the upper sub-sleeve and the lower sub-sleeve are connected by a stud;

[0010] The upper sub-tube is fixedly connected to the carrier, the lower end of the upper sub-tube is provided with an annular groove, the upper end of the lower sub-tube is located in the annular groove, and the internal thread is located on the inner wall of the lower sub-tube.

[0011] Preferably, the force-applying mechanism includes a jack and a hydraulic pump, a pipeline is connected between the jack and the hydraulic pump, a pressure gauge is installed at one end of the hydraulic pump, the jack is sleeved on the anchor rod, and the lifting end of the jack is fixedly connected to the inner sleeve.

[0012] Preferably, the lower end of the jack is fixedly connected to a base

[0013] Preferably, a positioning mechanism is provided at the upper end of the connecting mechanism, and the positioning mechanism comprises a positioning block, the positioning block is concentric with the output end of the jack, and the positioning block abuts against the top end of the anchor rod.

[0014] Preferably, the column is fixedly mounted on the upper end of the jack, movable grooves are provided on both sides of the column, and the limit grooves are connected to the middle of the movable grooves;

[0015] The two sides of the positioning block are fixedly connected with lifting blocks, one end of the lifting block is slidably connected to the movable groove, and a guide rod is arranged inside, the upper end of the guide rod is fixedly installed on one side of the column, a spring is installed on the rod body of the guide rod, and the bottom of the spring is fixedly installed on the lifting block.

[0016] Preferably, the turntable is an annular structure, and the inner ring diameter of the turntable is smaller than the inner ring diameter of the carrier.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. High connection reliability: The jacket structure cooperates with the inner sleeve to ensure the coaxiality between the jacket structure and the anchor rod, and can provide greater friction and clamping force, effectively avoiding loosening or slipping between the anchor rod and the connection mechanism during the pull-out test, ensuring stable transmission of tension, and laying a solid foundation for obtaining accurate test data.

[0019] 2. Wide range of applications: The outer surface of the arc plate in the jacket structure is stepped, and it can adapt to anchor rods of different diameters when matched with the inner sleeve. It only needs to adjust the clamping degree to effectively connect and test anchor rods of various specifications, reducing the trouble of frequent replacement of parts due to differences in anchor rod sizes, and has strong versatility.

[0020] 3. Accurate force guarantee: The positioning block of the positioning mechanism is in contact with the top of the anchor rod, and combined with the column, lifting block, guide rod and spring and other components, it ensures that the jack, connecting mechanism and anchor rod are concentric, so that the force center of the anchor rod is consistent with the tension center of the jack, avoiding eccentric force causing data deviation, and truly reflecting the anchoring performance of the new grouting material.

[0021] 4. Accurate and controllable force: The force-applying mechanism adopts a combination of a jack and a hydraulic pump. The hydraulic pump drives the jack to extend and retract through a pipeline. The pressure is monitored in real time with the help of a pressure gauge. The pulling force can be accurately controlled and the output pulling force can be stably output to meet different test requirements, helping to carry out tests in an orderly manner and obtain accurate data.

[0022] 5. Improved disassembly convenience: The outer sleeve is split into an upper sleeve and a lower sleeve and connected with studs. After the pull-out test, the upper and lower sleeves can be separated by rotating the studs, making it easier for the force-applying mechanism to drive the inner sleeve to drop out of the clamp, solving the inconvenience of disassembly of the traditional structure and improving work efficiency.

[0023] 6. Enhanced installation flexibility: The annular turntable and docking nut are suitable for threaded anchor rods. The nut fits the bearing body and the inner ring of the turntable is limited to ensure coaxiality. Even if there is an obstruction at the end of the anchor rod, the split nut can be installed smoothly, enhancing the adaptability of the device to different anchor rod working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall three-dimensional structure of Example 1 of the present invention;

[0025] Figure 2 It is a side view structural schematic diagram of embodiment 1 of the present invention;

[0026] Figure 3 For Example 1 of the present invention Figure 2 Schematic diagram of the three-dimensional structure of the middle AA section;

[0027] Figure 4 For Example 1 of the present invention Figure 3 A magnified view of the structure at B in the middle;

[0028] Figure 5 It is a partial structural exploded diagram of Example 1 of the present invention;

[0029] Figure 6 It is a partial structural cross-sectional view of Example 2 of the present invention;

[0030] Figure 7For Example 2 of the present invention Figure 6 Enlarged view of the structure at point C in the middle.

[0031] In the figure: 1. base; 2. connecting mechanism; 21. column; 22. outer sleeve; 221. upper sub-tube; 222. lower sub-tube; 223. stud; 224. annular groove; 23. inner sleeve; 24. jacket structure; 241. clamping body; 242. bearing body; 25. turntable; 26. handle; 27. mounting ring; 28. limit block; 29. ​​limit groove; 210. movable groove; 3. pull-out test mechanism; 31. jack; 32. pipeline; 33. hydraulic pump; 34. pressure gauge; 4. positioning mechanism; 41. positioning block; 42. lifting block; 43. guide rod; 44. spring. DETAILED DESCRIPTION

[0032] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.

[0033] The structure of the present invention is described in detail below in conjunction with the accompanying drawings.

[0034] Example 1

[0035] like Figures 1 to 5 As shown, the anchor rod pull-out test device based on the new grouting material provided by the embodiment of the present invention includes a connecting mechanism 2, wherein the connecting mechanism 2 includes an inner sleeve 23 and a jacket structure 24, wherein the jacket structure 24 is clamped on the anchor rod, the jacket structure 24 is tightly pressed against the inner wall of the inner sleeve 23, and the lower end of the inner sleeve 23 is fixedly connected with a force-applying mechanism; the connecting mechanism 2 also includes a column 21, and limiting grooves 29 are provided on both sides of the column 21, and limiting blocks 28 are slidably connected inside the limiting grooves 29, and one side of the limiting block 28 is fixedly connected with a mounting ring 27, and a turntable 25 is rotatably connected inside the mounting ring 27, and a handle 26 is rotatably installed on the upper surface of the turntable 25, and the turntable 25 is fixedly connected to the top of the jacket structure 24, and an outer sleeve 22 is fixedly connected to the edge of the jacket structure 24, and the outer sleeve 22 is threadedly sleeved on the inner sleeve 23.

[0036] When preparing for the anchor rod pulling test, the jacket structure 24 is first put on the anchor rod, and the operator drives the turntable 25 to rotate by turning the handle 26. Since the turntable 25 is fixedly connected to the jacket structure 24, the jacket structure 24 will rotate with the rotation of the turntable 25. At the same time, the outer sleeve 22 fixedly sleeved on the upper part of the jacket structure 24 is in a threaded sleeve relationship with the inner sleeve 23. The rotation of the jacket structure 24 will cause it to move downward along the thread of the inner sleeve 23 (not rotating), and then gradually clamp the anchor rod, so that the tension applied by the subsequent jack 31 can be reliably transmitted to the anchor rod.

[0037] Compared with the traditional simple connection method, this structure can ensure the coaxiality between the jacket structure 24 and the anchor rod on the one hand, and can provide greater friction and clamping force on the other hand, effectively preventing the anchor rod and the connection mechanism 2 from loosening or slipping during the pull-out test, ensuring the stable transmission of tension, and greatly improving the accuracy and reliability of the test data. In addition, the connection mechanism 2 can adapt to anchor rods of different diameters. By adjusting the clamping degree of the jacket structure 24, anchor rods within a certain range can be effectively connected and tested, which improves the versatility and scope of application of the device, and can play a good role in different anchor rod pull-out test scenarios, reducing the trouble of frequently replacing connection parts due to differences in anchor rod sizes.

[0038] Specifically, the jacket structure 24 includes a clamp body 241 and a carrier body 242, the clamp body 241 includes a plurality of arc-shaped plates, and there is a gap between adjacent arc-shaped plates, and the outer surface of the arc-shaped plates is a stepped structure. When in use, during the downward movement of the jacket structure 24, the inner wall of the inner sleeve 23 will squeeze the arc-shaped plates, thereby causing the arc-shaped plates to elastically deform, specifically, the lower side of the arc-shaped plates tilts toward the middle and holds the anchor rod. Since the outer surface of the arc-shaped plates is a stepped structure with a plurality of outer diameters, the inner sleeve 23 can be matched with different outer diameters, and thus is suitable for anchor rods of different diameters.

[0039] In one embodiment, the clamp body 241 is fixedly connected to the lower side of the carrier body 242. The advantage of this arrangement is that the connection between the clamp body 241 and the carrier body 242 is relatively firm, and when the jacket structure 24 descends, the clamp body 241 and the carrier body 242 rotate synchronously. However, the disadvantage is that when the clamp body 241 and the anchor rod are tightly held to a certain extent, if the clamp body 241 is to be further rotated, it is necessary to overcome not only the friction force of the clamp body 241 moving downward, but also the friction force of the clamp body 241 rotating, which is relatively difficult.

[0040] In another embodiment, a swivel is fixedly connected to the upper end of the clamp body 241, and the swivel is rotatably connected to the lower side of the carrier body 242 through a bearing. The advantage of this arrangement is that when the clamp body 241 and the anchor rod are tightly embraced to a certain extent, the handle 26 can still be used to drive the turntable 25, the carrier body 242, and the outer sleeve 22 to rotate, while the clamp body 241 does not rotate, so there is no need to overcome the friction of the rotation of the clamp body 241, and the clamp body 241 can be more firmly embraced.

[0041] Furthermore, a positioning mechanism 4 is provided at the upper end of the connection mechanism 2, and the positioning mechanism 4 includes a positioning block 41, and the positioning block 41 is concentric with the output end of the jack 31, and the positioning block 41 abuts against the top of the anchor rod. The column 21 is fixedly installed on the upper end of the jack 31, and movable grooves 210 are provided on both sides of the column 21, and the limit grooves 29 are connected to the middle of the movable grooves 210. Lifting blocks 42 are fixedly connected on both sides of the positioning block 41, and one end of the lifting block 42 is slidably connected in the movable groove 210, and a guide rod 43 is provided inside, and the upper end of the guide rod 43 is fixedly installed on one side of the column 21, and a spring 44 is installed on the rod body of the guide rod 43, and the bottom of the spring 44 is fixedly installed on the lifting block 42.

[0042] When in use, after the jack 31 is sleeved on the anchor rod, the positioning block 41 is correspondingly abutted against the top of the anchor rod, thereby ensuring that the jack 31, the jacket structure 24, the inner sleeve 23 and the outer sleeve 22 are concentric with the anchor rod, accurately determining the force center of the anchor rod, so that it is always consistent with the tension center of the jack 31. This concentric force state is crucial for the anchor rod pull-out test, which can ensure that the pull-out force data measured in the test truly and accurately reflects the anchoring performance of the new grouting material on the anchor rod, avoiding deviations in the test data due to eccentric force, and thus providing a reliable basis for engineering quality assessment. The sliding cooperation between the lifting block 42 and the movable groove 210 can ensure the stability of the upward and downward movement of the positioning block 41, and the cooperation between the spring 44 and the guide rod 43 can provide stable pressure for the positioning block 41 to ensure that the positioning block 41 is tightly abutted against the anchor rod.

[0043] Exemplarily, the force-applying mechanism includes a jack 31 and a hydraulic pump 33, a pipe 32 is connected between the jack 31 and the hydraulic pump 33, a pressure gauge 34 is installed at one end of the hydraulic pump 33, the jack 31 is sleeved on the anchor rod, and the lifting end of the jack 31 is fixedly connected to the inner sleeve 23. The lower end of the jack 31 is fixedly connected to the base 1.

[0044] The working principle of the force-applying mechanism is as follows: the hydraulic pump 33 is connected to the jack 31 through the pipeline 32. When the hydraulic pump 33 is started, the hydraulic pump 33 can deliver hydraulic oil to the jack 31, so that the lifting end of the jack 31 can perform telescopic movement under the action of hydraulic pressure. Since the lifting end of the jack 31 is fixedly connected to the inner sleeve 23, and the inner sleeve 23 is reliably connected to the anchor rod through the connecting mechanism 2, the tension generated by the extension and contraction of the jack 31 can be transmitted to the anchor rod, thereby realizing the application of a pulling force to the anchor rod for a pulling test. A pressure gauge 34 is installed at one end of the hydraulic pump 33. The pressure output of the hydraulic pump 33 can be monitored in real time through the pressure gauge 34, and the magnitude of the pulling force applied by the jack 31 to the anchor rod can be indirectly understood. By using the cooperation of the hydraulic pump 33 and the jack 31, the required pulling force can be stably output, ensuring the continuity and stability of the pulling force during the pulling test, so that the test can be carried out in an orderly manner according to the predetermined requirements, creating good conditions for accurately obtaining test data.

[0045] Example 2

[0046] In Example 1, after the pull-out test, since the outer side of the inner sleeve 23 is threadedly connected to the outer sleeve 22, the inner sleeve 23 cannot be directly moved downward to release the connection between the connecting mechanism 2 and the anchor rod. Therefore, the outer sleeve 22 must be rotated to release the connection with the anchor rod. However, after the pull-out test, the outer sleeve 22 is not easy to rotate, and it is usually necessary to hit the handle 26 with a hammer to achieve the rotation of the outer sleeve 22. In order to solve this problem, this embodiment is configured as follows:

[0047] See also Figure 6 and Figure 7 The outer sleeve 22 includes an upper sub-cylinder 221 and a lower sub-cylinder 222, and the upper sub-cylinder 221 and the lower sub-cylinder 222 are connected by a stud 223; the upper sub-cylinder 221 is fixedly connected to the carrier 242, and an annular groove 224 is provided at the lower end of the upper sub-cylinder 221, and the upper end of the lower sub-cylinder 222 is located in the annular groove 224, and the internal thread is located on the inner wall of the lower sub-cylinder 222.

[0048] With this arrangement, during installation, the upper sub-tube 221 and the lower sub-tube 222 move synchronously (fixedly connected by the stud 223), and the overall process is the same as that of Example 1, which is not described in detail here. After the pull-out test is completed, the upper sub-tube 221 and the lower sub-tube 222 can be separated by rotating the stud 223. At this time, the force-applying mechanism drives the inner sleeve 23 to descend, so that the lower sub-tube 222 can be lowered, while the upper sub-tube 221 does not descend, so that the inner sleeve 23 can be automatically separated from the clamp body 241, and the disassembly is completed.

[0049] Example 3

[0050] The rotating disk 25 is an annular structure, and the inner diameter of the rotating disk 25 is smaller than the inner diameter of the carrier 242. When the anchor rod has threads, the nut can be threadedly connected to the anchor rod, and the lower side of the nut fits the upper surface of the carrier 242. At this time, the connection can be completed only by the nut, and the nut is inscribed in the inner ring of the rotating disk 25, so that the coaxiality of the anchor rod and the device can be achieved.

[0051] Preferably, the nut is formed by butting together the left and right parts, and both the left and right parts are inscribed in the inner ring of the turntable 25. When there is an obstruction at the end of the anchor rod, the complete nut cannot be screwed onto the thread from the end of the anchor rod. At this time, the left and right parts can be butt-jointed to form a complete nut, and the inner ring of the turntable 25 can limit the nut without hindering the rotation of the nut.

[0052] Working principle of the present invention:

[0053] When in use, the base 1, the jack 31 and the connecting mechanism 2 are sleeved on the anchor rod, the base 1 is fixed, and the positioning block 41 is correspondingly abutted against the top of the anchor rod, so as to ensure that the jack 31, the jacket structure 24, the inner sleeve 23 and the outer sleeve 22 are concentric with the anchor rod, and the force center of the anchor rod is accurately determined. The handle 26 is turned to drive the turntable 25 to rotate, and the jacket structure 24 rotates with the turntable 25. The outer sleeve 22 and the inner sleeve 23 are threadedly matched to make the jacket structure 24 move downward, and then gradually clamp the anchor rod, so that the subsequent pulling force applied by the jack 31 can be The pressure is transmitted to the anchor rod by the ground, and the hydraulic pump 33 is operated to make the piston of the jack 31 begin to extend upward, generating an upward pulling force. The jacket structure 24 effectively transmits the pulling force of the jack 31 to the anchor rod, and the pressure gauge 34 monitors the pressure output by the hydraulic pump 33 in real time. The pulling force applied to the anchor rod can be calculated according to the pressure value and the parameters of the jack 31, so as to accurately perform the pulling test until the pulling force required for the test is reached or the anchor rod is pulled out and other test termination conditions. By recording and analyzing the test data, the anchoring performance of the new grouting material on the anchor rod can be evaluated.

[0054] To sum up: the anchor rod pulling test device based on the new grouting material, by placing the positioning block 41 in correspondence with the top end of the anchor rod, ensures that the jack 31, the jacket structure 24, the inner sleeve 23 and the outer sleeve 22 are concentric with the anchor rod, accurately determines the force center of the anchor rod, so that it is always consistent with the tension center of the jack 31, and drives the outer sleeve 22 to rotate through the turntable 25, so that the jacket structure 24 gradually moves downward and gradually clamps the anchor rod, providing greater friction and clamping force, effectively preventing loosening or slipping between the anchor rod and the connecting mechanism 2 during the pulling test, ensuring stable transmission of tension, and greatly improving the accuracy and reliability of the test data.

[0055] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0056] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anchor pull-out test device based on a new grouting material, comprising a connecting mechanism (2), characterized in that: The connecting mechanism (2) comprises an inner sleeve (23) and a jacket structure (24); the jacket structure (24) is clamped on the anchor rod, the jacket structure (24) is tightly pressed against the inner wall of the inner sleeve (23); and the lower end of the inner sleeve (23) is fixedly connected with a force applying mechanism; The connecting mechanism (2) also includes a column (21), and limit grooves (29) are respectively provided on both sides of the column (21), and a limit block (28) is slidably connected inside the limit groove (29), and a mounting ring (27) is fixedly connected to one side of the limit block (28), and a turntable (25) is rotatably connected inside the mounting ring (27), and a handle (26) is rotatably mounted on the upper surface of the turntable (25), and the turntable (25) is fixedly connected to the top of the jacket structure (24), and the edge of the jacket structure (24) is fixedly connected to an outer sleeve (22), and the outer sleeve (22) is threadedly sleeved on the inner sleeve (23).

2. The anchor pull-out test device based on the new grouting material according to claim 1, characterized in that: The jacket structure (24) comprises a clamp body (241) and a carrier body (242); the clamp body (241) comprises a plurality of arc-shaped plates, and gaps are provided between adjacent arc-shaped plates; and the outer surfaces of the arc-shaped plates are of a stepped structure.

3. The anchor pull-out test device based on the new grouting material according to claim 2, characterized in that: The clamping body (241) is fixedly connected to the lower side of the supporting body (242).

4. The anchor pull-out test device based on the new grouting material according to claim 2, characterized in that: A rotating ring is fixedly connected to the upper end of the clamp body (241), and the rotating ring is rotatably connected to the lower side of the carrier (242) via a bearing.

5. The anchor pull-out test device based on the new grouting material according to claim 3 or 4, characterized in that: The outer sleeve (22) comprises an upper sub-sleeve (221) and a lower sub-sleeve (222), and the upper sub-sleeve (221) and the lower sub-sleeve (222) are connected via a stud (223); The upper sub-tube (221) is fixedly connected to the carrier (242), the lower end of the upper sub-tube (221) is provided with an annular groove (224), the upper end of the lower sub-tube (222) is located in the annular groove (224), and the internal thread is located on the inner wall of the lower sub-tube (222).

6. The anchor pull-out test device based on the new grouting material according to claim 1, characterized in that: The force-applying mechanism comprises a jack (31) and a hydraulic pump (33); a pipeline (32) is connected between the jack (31) and the hydraulic pump (33); a pressure gauge (34) is installed at one end of the hydraulic pump (33); the jack (31) is sleeved on the anchor rod; and the lifting end of the jack (31) is fixedly connected to the inner sleeve (23).

7. The anchor pull-out test device based on the new grouting material according to claim 6, characterized in that: The lower end of the jack (31) is fixedly connected to a base (1).

8. The anchor pull-out test device based on the new grouting material according to claim 3 or 4, characterized in that: A positioning mechanism (4) is provided at the upper end of the connection mechanism (2), and the positioning mechanism (4) comprises a positioning block (41), the positioning block (41) is concentric with the output end of the jack (31), and the positioning block (41) abuts against the top end of the anchor rod.

9. The anchor pull-out test device based on the new grouting material according to claim 8, characterized in that: The column (21) is fixedly mounted on the upper end of the jack (31), movable grooves (210) are provided on both sides of the column (21), and the limiting groove (29) is connected to the middle of the movable groove (210); Both sides of the positioning block (41) are fixedly connected with a lifting block (42); one end of the lifting block (42) is slidably connected to the movable groove (210), and a guide rod (43) is provided inside; the upper end of the guide rod (43) is fixedly installed on one side of the column (21); a spring (44) is installed on the rod body of the guide rod (43); and the bottom of the spring (44) is fixedly installed on the lifting block (42).

10. The anchor pull-out test device based on the new grouting material according to claim 2, characterized in that: The rotating disk (25) is an annular structure, and the inner diameter of the rotating disk (25) is smaller than the inner diameter of the supporting body (242).

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