On-site rockfill rolling test device and method

Abstract

The invention belongs to the technical field of engineering test equipment, particularly relates to an on-site rockfill rolling test device and method, and provides the following scheme aiming at the problem that an existing on-site rockfill rolling test device has high requirements on a test site: the on-site rockfill rolling test device comprises four symmetrical upright posts; the two connecting frames are fixedly connected between the two stand columns located on the same side, two symmetrical cross beams are arranged between the two connecting frames, and the exteriors of the cross beams are fixedly connected with the exteriors of the stand columns; and the exterior of the bearing frame is fixedly connected with the exteriors of the four stand columns. According to the on-site rockfill rolling test device and method disclosed by the invention, the device can be leveled when the rolling test device performs a rolling test on a construction site, so that the device can reduce the influence of topographic conditions on the rolling test on the construction site to the greatest extent; and the accuracy of a test result is improved while the field erection and test speed of the device is obviously improved.

Description

Technical Field

[0001] This invention relates to the field of engineering testing equipment technology, and in particular to a field riprap compaction test device and method. Background Technology

[0002] Earth-rock dams have significant advantages such as good economic efficiency, maximum utilization of excavated materials and local materials in the reservoir area, and flexible layout and design of the dam axis. They have become the most commonly used dam type for the construction of pumped storage power station reservoirs. The source of the rockfill and the quality of construction and filling directly affect the safety and stability of earth-rock dams.

[0003] Existing riprap compaction test equipment often requires on-site compaction testing. However, due to the influence of the terrain at the construction site, the site where the test equipment is located needs to be leveled before the test can be conducted. This greatly slows down the construction progress, extends the construction period, and has a significant impact on construction efficiency. Summary of the Invention

[0004] This invention discloses an on-site rockfill compaction test device and method, aiming to solve the technical problem in the background art that existing on-site rockfill compaction test devices have high requirements for the test site.

[0005] The present invention proposes an on-site riprap compaction test device, comprising: Four symmetrical columns; Two connecting frames are fixedly connected to the two columns on the same side. Two symmetrical crossbeams are set between the two connecting frames, and the outside of the crossbeams is fixedly connected to the outside of the columns. The support frame is fixedly connected to the exterior of the four columns, and a mounting plate is fixedly connected to the upper side of the support frame. Three mounting plates, the bottom of which are all attached to the upper side of the support frame, which is used to provide sufficient samples for test comparison when the device is used to conduct a rolling test using a single-factor variation method; A hydraulic rod is located above the holding tray, and the output end of the hydraulic rod is fixedly connected to a fixed frame, on which a rolling wheel is provided; Four leveling and stabilizing modules are located at the bottom of the column. These modules are used to level the device when it is erected on the construction site for compaction tests.

[0006] In a preferred embodiment, the leveling and stabilizing module includes ball seats, the upper sides of which are fixedly connected to the bottom of the columns on the same side. Each ball seat has a ball head slidably connected inside, and the bottom of each ball head is movably connected to a threaded rod. Each threaded rod has a base outside, and the bottom of each base is fixedly connected to a load-bearing plate. Each load-bearing plate has multiple circumferentially distributed rivets. The upper sides of the four columns are fixedly connected to the same cover plate, and the bottom of the cover plate is fixedly connected to a linear motor. The output end of the linear motor is fixedly connected to a movable frame, and the bottom of the movable frame is slidably connected to the upper sides of the two crossbeams. Each of the four threaded rods is provided with a sleeve on its outside. The bottom of each sleeve is movably connected to the upper side of the base on the same side. Each threaded rod is provided with a rotating disk on its outside. The bottom of each rotating disk is fixedly connected to the upper side of the sleeve on the same side. Each rotating disk is fixedly connected with a handle on its upper side. Each base is fixedly connected with a fixing cover on its outside. The inner wall of the fixing cover is slidably connected to the outside of the sleeve. Each sleeve is provided with four circumferentially distributed grooves. Each groove is slidably connected with a ball. Each of the four sleeves has four circumferentially spaced fitting grooves on its outer surface. The inner walls of the fitting grooves engage with the outer surfaces of the balls. Each of the four sleeves has a collar slidably connected to its outer surface, and each collar has an annular groove. Each of the four sleeves has a fixed ring fixedly connected to its outer surface, and the outer surface of the fixed ring is slidably connected to the inner wall of the annular groove. A lead screw is movably connected to the movable frame, and a movable block is provided on the outer surface of the lead screw. The bottom of the movable block is fixedly connected to the upper side of the hydraulic rod. A drive motor is fixedly connected to the outer surface of the movable frame, and the output end of the drive motor is connected to one side of the lead screw through a coupling. The side of each of the four fixed rings away from the threaded rod is in contact with the inner wall of the annular groove. Each fixed ring is fixedly connected to a spring on its side closest to the threaded rod, and the other end of each spring is fixedly connected to the inner wall of the annular groove. Each collar has an annular conical groove on its inner wall, and the inner wall of the annular conical groove is in contact with the outer surface of the ball on the same side. Each of the four sleeves has a fixed-point anti-deviation module on its outer surface.

[0007] In a preferred embodiment, the fixed-point anti-deviation module includes multiple symmetrical mounting components. Each mounting component is fixedly connected to the opposite side of the outer surface of the same-side holding tray. Each mounting component has a circular hole, and a cylinder is slidably connected inside each circular hole. A stop ring is fixedly connected to the outside of each cylinder, and the bottom of each stop ring is in contact with the outside of the mounting component. A circular rod is slidably connected to the inner wall of each of the multiple cylinders. A rotating disk is movably connected to the upper side of each circular rod. A pull rod is fixedly connected to the upper side of each rotating disk, and a T-slot is formed on each cylinder. Each of the multiple rotating discs is fixedly connected to a latch, the outer side of which engages with the inner wall of the T-slot on the same side. Each cylinder has two symmetrical grooves on its outer side. The mounting plate has multiple symmetrical slots, the inner walls of which are slidably connected to the outer side of the cylinder on the same side. Each of the multiple round rods has two symmetrical rectangular slots on its outer side. Each rectangular slot is movably connected to a limiting plate, the outer side of which is slidably connected to the outer side of the groove on the same side. The upper side of each limiting plate engages with the bottom of the mounting plate. A spring is fixedly connected to the inner wall of each rectangular slot.

[0008] A method for conducting an on-site rockfill compaction test, using an on-site rockfill compaction test apparatus as described above, includes the following steps: Step 1: Set up the device at the construction site. Based on the terrain conditions, after the test device is set up, use a leveling and stabilizing module to level the device and keep the mounting plate parallel. Step 2: Place the rockfill treated by the single-factor method on a holding tray, fix the holding tray on the mounting plate using the fixed-point anti-deviation module, and start the hydraulic rod, drive motor and linear motor so that the rolling wheel can perform a rolling test on the rockfill in the holding tray.

[0009] As can be seen from the above, the on-site rockfill compaction test device provided by the present invention can level the device when it is used for compaction testing at the construction site, thereby minimizing the impact of the terrain conditions at the construction site on the compaction test, significantly improving the speed of on-site setup and testing, and improving the accuracy of the test results. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of an on-site rockfill compaction test device proposed in this invention; Figure 2 This is a bottom view of the structure of an on-site rockfill compaction test device proposed in this invention; Figure 3 This is a side view of the on-site rockfill compaction test device proposed in this invention. Figure 4 This is a schematic diagram of the leveling and stabilizing module structure of an on-site rockfill compaction test device proposed in this invention; Figure 5 This is a schematic diagram of the fixed cover structure of an on-site rockfill compaction test device proposed in this invention; Figure 6 This is a schematic diagram of the collar structure of an on-site rockfill compaction test device proposed in this invention; Figure 7 This is a schematic diagram of the fixed-point anti-deviation module structure of an on-site rockfill compaction test device proposed in this invention; Figure 8 This is a schematic diagram of the cylindrical structure of an on-site rockfill compaction test device proposed in this invention.

[0011] In the diagram: 1. Column; 2. Connecting frame; 3. Crossbeam; 4. Support frame; 5. Mounting plate; 6. Placing tray; 7. Hydraulic rod; 8. Leveling and stabilizing module; 801. Ball seat; 802. Ball head; 803. Threaded rod; 804. Rotating disk; 805. Handle; 806. Base; 807. Load-bearing plate; 808. Rivet; 809. Sleeve; 810. Fixing cover; 811. Ball bearing; 812. Fitting groove; 813. Collar; 814. Annular conical groove; 815. Annular groove ; 816. Fixing ring; 817. Spring 1; 9. Fixed-point anti-deviation module; 901. Mounting component; 902. Cylinder; 903. Positioning ring; 904. Groove; 905. Round rod; 906. Rotating disc; 907. T-slot; 908. Locking tenon; 909. Pull rod; 910. Limiting plate; 911. Spring 2; 10. Moving frame; 11. Lead screw; 12. Drive motor; 13. Movable block; 14. Cover plate; 15. Fixing frame; 16. Linear motor; 17. Rolling roller. Detailed Implementation

[0012] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0013] The on-site rockfill compaction test device disclosed in this invention is mainly used in scenarios where existing on-site rockfill compaction test devices have high requirements for the test site.

[0014] Reference Figures 1-8 A field riprap compaction test device, comprising: Four symmetrical pillars 1; Two connecting frames 2 are bolted to the two columns 1 on the same side. Two symmetrical crossbeams 3 are set between the two connecting frames 2. The outside of the crossbeams 3 is bolted to the outside of the column 1. The support frame 4 is bolted to the outside of the four columns 1, and the upper side of the support frame 4 is bolted to the mounting plate 5. The bottom of each of the three mounting plates 5 is attached to the upper side of the support frame 4. The support frame 4 is used to provide sufficient samples for test comparison when the device uses a single-factor variation method to conduct a compaction test. Hydraulic rod 7 is located above the holding tray 6. The output end of hydraulic rod 7 is connected to a fixing frame 15 by bolts. A rolling wheel 17 is installed on the fixing frame 15. Four leveling and stabilizing modules 8 are located at the bottom of the column 1. The leveling and stabilizing modules 8 are used to level the device when it is erected on the construction site for compaction tests.

[0015] The device is set up at the construction site. Based on the terrain conditions, after the test device is set up, the leveling and stabilizing module 8 is used to level the device, ensuring that the mounting plate 5 is parallel. The rock pile treated by the single-factor method is placed in the holding tray 6, and the holding tray 6 is fixed to the mounting plate 5 using the fixed-point anti-deviation module 9. The hydraulic rod 7, drive motor 12, and linear motor 16 are activated, allowing the compaction wheel 17 to perform a compaction test on the rock pile in the holding tray 6. The device utilizes the leveling and stabilizing module 8 to level the device during the compaction test at the construction site, thereby minimizing the impact of the terrain conditions on the compaction test. This significantly improves the speed of on-site setup and testing while also increasing the accuracy of the test results.

[0016] Reference Figure 3 , Figure 4 , Figure 5 and Figure 6 In a preferred embodiment, the leveling and stabilizing module 8 includes ball seats 801. The upper sides of the four ball seats 801 are all bolted to the bottom of the column 1 on the same side. Ball heads 802 are slidably connected inside the ball seats 801. The bottom of the ball heads 802 is rotatably connected to the threaded rods 803 through bearings. The outside of the threaded rods 803 is provided with bases 806. The bottom of the bases 806 is bolted to the bearing plates 807. The bearing plates 807 are provided with a plurality of circumferentially distributed rivets 808. The upper sides of the four columns 1 are bolted to the same cover plate 14. The bottom of the cover plate 14 is bolted to the linear motor 16. The output end of the linear motor 16 is bolted to the movable frame 10. The bottom of the movable frame 10 is slidably connected to the upper sides of the two crossbeams 3. Each of the four threaded rods 803 is provided with a sleeve 809 on the outside. The bottom of each sleeve 809 is rotatably connected to the upper side of the base 806 on the same side via a bearing. Each of the threaded rods 803 is provided with a rotating disk 804 on the outside. The bottom of each rotating disk 804 is connected to the upper side of the sleeve 809 on the same side via bolts. Each rotating disk 804 is provided with a handle 805 via bolts. Each base 806 is provided with a fixed cover 810 via bolts. The inner wall of the fixed cover 810 is slidably connected to the outside of the sleeve 809. Each sleeve 809 is provided with four circumferentially distributed circular grooves. Each circular groove is slidably connected with a ball bearing 811. Four sleeves 809 are provided with four circumferentially distributed fitting grooves 812 on their outer sides. The inner walls of the fitting grooves 812 are engaged with the outer walls of the balls 811. The outer walls of the fixed cover 810 are slidably connected with collars 813. Each collar 813 is provided with annular grooves 815. The outer walls of the fixed cover 810 are connected with fixed rings 816 by bolts. The outer walls of the fixed rings 816 are slidably connected to the inner walls of the annular grooves 815. The movable frame 10 is rotatably connected with a lead screw 11 by bearings. The outer walls of the lead screw 11 are provided with movable blocks 13. The bottom of the movable blocks 13 is connected to the upper side of the hydraulic rod 7 by bolts. The outer walls of the movable frame 10 are connected with a drive motor 12 by bolts. The output end of the drive motor 12 is connected to one side of the lead screw 11 by a coupling. The four fixing rings 816 are attached to the inner wall of the annular groove 815 on the side away from the threaded rod 803. The fixing rings 816 are all connected to the spring 817 by bolts on the side of the threaded rod 803. The other end of the spring 817 is connected to the inner wall of the annular groove 815 by bolts. The inner wall of the collar 813 is provided with an annular conical groove 814. The inner wall of the annular conical groove 814 is in contact with the outside of the ball 811 on the same side. The outside of the holding tray 6 is provided with a fixed-point anti-deviation module 9.

[0017] Specifically, after the device is installed on the construction site, the rivet 808 is driven into the ground, overcoming the elastic force of the spring 817 to push the collar 813 upward. This causes the narrow side of the annular conical groove 814 to release the pressure on the ball 811 as it moves upward, allowing the ball 811 to enter the wide side area of ​​the annular conical groove 814. This releases the ball 811 from locking the fitting groove 812. The handle 805 is then grasped, causing the sleeve 809 to rotate. This causes the threaded rod 803 to move up and down on the base 806, and the ball head 802 to rotate in the ball seat 801. This changes the elevation of the column 1 where the threaded rod 803 is located on the ground. By adjusting the height of the four columns 1, the leveling of the mounting plate 5 is completed.

[0018] In specific application scenarios, the leveling and stabilizing module 8 is mainly used in the leveling and stabilizing stage of the leveling and stabilizing process. That is, the leveling and stabilizing module 8 uses the ball seat 801, ball head 802 and threaded rod 803 to enable the device to adjust the height of the column 1 by driving the ball head 802 and the ball seat 801 to form a certain angle through the threaded rod 803. This improves the adaptability of the device to different terrains. The use of the ball bearing 811, the fitting groove 812 and the annular conical groove 814 can prevent the threaded rod 803 from rotating in the opposite direction due to force, which would cause the device to fail in leveling. The use of the load-bearing plate 807 and the rivet 808 improves the load-bearing capacity of the device and ensures that the device will not slip when under force, thus improving stability.

[0019] It should be noted that the device utilizes the lead screw 11, linear motor 16, and compaction wheel 17 to conduct experimental analysis using a single-factor variation method. By combining different parameters such as compaction thickness, number of compaction passes, and water spraying rate, the device efficiently selects the optimal value, greatly improving construction speed and quality.

[0020] Reference Figure 7 and Figure 8 In a preferred embodiment, the fixed-point anti-deviation module 9 includes multiple symmetrical mounting parts 901. Each mounting part 901 is bolted to the opposite side of the outer surface of the same side of the holding tray 6. Each mounting part 901 has a circular hole, and a cylinder 902 is slidably connected inside each circular hole. Each cylinder 902 has a stop ring 903 bolted to its outer surface, and the bottom of each stop ring 903 is in contact with the outer surface of the mounting part 901. Each cylinder 902 has a circular rod 905 slidably connected to its inner wall. Each circular rod 905 has a rotating disk 906 rotatably connected to its upper surface via a bearing. Each rotating disk 906 has a pull rod 909 bolted to its upper surface. Each cylinder 902 has a T-slot 907. Multiple rotating discs 906 are bolted to the outside of each with a latch 908. The outside of each latch 908 engages with the inner wall of the T-slot 907 on the same side. The outside of each cylinder 902 has two symmetrical cuts 904. The mounting plate 5 has multiple symmetrical slots. The inner wall of each slot is slidably connected to the outside of the cylinder 902 on the same side. Multiple round rods 905 have two symmetrical rectangular slots on the outside. Each rectangular slot is rotatably connected to a limiting plate 910 via a bearing. The outside of the limiting plate 910 is slidably connected to the outside of the cut 904 on the same side. The upper side of each limiting plate 910 engages with the bottom of the mounting plate 5. The inner wall of each rectangular slot is bolted to a spring 911.

[0021] Specifically, after spreading the treated rockfill onto the holding tray 6, the holding tray 6 is placed on the mounting plate 5. The cylinder 902 is inserted into the round hole on the mounting part 901 and the slot on the mounting plate 5, so that the stop ring 903 fits against the mounting part 901. The round rod 905 is inserted into the cylinder 902, so that the limiting plate 910 reaches the cutting groove 904 in the rectangular groove. Under the push of the spring 911, the limiting plate 910 moves into the cutting groove. When the disc 904 is unfolded, the locking tenon 908 on the rotating disc 906 is at the bottom of the vertical groove of the T-slot 907. Pulling the pull rod 909 causes the round rod 905 to rise. When the locking tenon 908 passes through the horizontal groove of the T-slot 907, it rotates, so that the locking tenon 908 engages with the T-slot 907. At this time, the outside of the limiting plate 910 will fit against the bottom of the mounting plate 5, so that the blocking ring 903 and the limiting plate 910 fix the holding tray 6 on the mounting plate 5.

[0022] In specific application scenarios, the fixed-point anti-deviation module 9 is mainly applicable to the vertex anti-deviation stage in the fixed-point anti-deviation process. That is, the fixed-point anti-deviation module 9 uses the cylinder 902, the limiting plate 910 and the blocking ring 903 to quickly and conveniently fix the holding tray 6 on the mounting plate 5. This ensures that when the rolling wheel 17 rolls the rock pile in the holding tray 6, the holding tray 6 will not shift on the mounting plate 5 due to the force, so that the rolling effect meets the test requirements and ensures the reliability of the test results.

[0023] A method for conducting an on-site rockfill compaction test, using an on-site rockfill compaction test apparatus as described above, includes the following steps: Step 1: Set up the device at the construction site. Based on the terrain conditions, after setting up the test device, use the leveling and stabilizing module 8 to level the device and keep the mounting plate 5 parallel. (After the device is set up at the construction site, push the rivet 808 into the ground to overcome the elastic force of the spring 817 and push the collar 813 upward. As the narrow side of the annular conical groove 814 moves upward, it releases the pressure on the ball 811, allowing the ball 811 to enter the wide side area of ​​the annular conical groove 814. This releases the ball 811 from locking the fitting groove 812. Grasp the handle 805 and drive the sleeve 809 to rotate, causing the threaded rod 803 to move up and down on the base 806 and the ball head 802 to rotate in the ball seat 801. This changes the elevation of the column 1 where the threaded rod 803 is located on the ground. By adjusting the height of the four columns 1, the leveling of the mounting plate 5 is completed.) Step 2: Place the treated rockfill material using the single-factor method onto the holding tray 6. Use the fixed-point anti-deviation module 9 to fix the holding tray 6 onto the mounting plate 5. Start the hydraulic rod 7, drive motor 12, and linear motor 16 so that the compaction wheel 17 can perform a compaction test on the rockfill material in the holding tray 6. (After spreading the treated rockfill material onto the holding tray 6, place the holding tray 6 onto the mounting plate 5, insert the cylinder 902 into the round hole on the mounting part 901 and the slot on the mounting plate 5, so that the stop ring 903 fits against the mounting part 901, and insert the round rod 905 into the cylinder.) In step 902, the limiting plate 910 reaches the cutting groove 904 in the rectangular groove. Under the push of the second spring 911, the limiting plate 910 unfolds in the cutting groove 904. At this time, the latch 908 on the rotating disc 906 is at the bottom of the vertical groove of the T-shaped groove 907. Pull the pull rod 909, which drives the round rod 905 to rise. When the latch 908 passes through the horizontal groove of the T-shaped groove 907, it rotates, so that the latch 908 engages with the T-shaped groove 907. At this time, the outside of the limiting plate 910 will fit against the bottom of the mounting plate 5, so that the blocking ring 903 and the limiting plate 910 fix the holding tray 6 on the mounting plate 5.

[0024] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A field test device for compaction of rockfill, characterized in that, include: Four symmetrical columns; Two connecting frames are fixedly connected to the two columns on the same side. Two symmetrical crossbeams are set between the two connecting frames, and the outside of the crossbeams is fixedly connected to the outside of the columns. The support frame is fixedly connected to the exterior of the four columns, and a mounting plate is fixedly connected to the upper side of the support frame. Three mounting plates, the bottom of which are all attached to the upper side of the support frame, which is used to provide sufficient samples for test comparison when the device is used to conduct a rolling test using a single-factor variation method; A hydraulic rod is located above the holding tray, and the output end of the hydraulic rod is fixedly connected to a fixed frame, on which a rolling wheel is provided; Four leveling and stabilizing modules are located at the bottom of the column. These modules are used to level the device when it is erected on the construction site for compaction tests.

2. The on-site rockfill compaction test device according to claim 1, characterized in that, The leveling and stabilizing module includes ball seats. The upper sides of the four ball seats are fixedly connected to the bottom of the columns on the same side. A ball head is slidably connected inside each ball seat. A threaded rod is movably connected to the bottom of each ball head. A base is provided on the outside of each threaded rod. A load-bearing plate is fixedly connected to the bottom of each base. Multiple rivets are equidistantly distributed around the circumference on each load-bearing plate. The upper sides of the four columns are fixedly connected to the same cover plate. A linear motor is fixedly connected to the bottom of the cover plate. A movable frame is fixedly connected to the output end of the linear motor. The bottom of the movable frame is slidably connected to the upper sides of the two crossbeams.

3. The on-site rockfill compaction test device according to claim 2, characterized in that, Each of the four threaded rods is provided with a sleeve on its outside. The bottom of each sleeve is movably connected to the upper side of the base on the same side. Each threaded rod is provided with a rotating disk on its outside. The bottom of each rotating disk is fixedly connected to the upper side of the sleeve on the same side. Each rotating disk is fixedly connected with a handle on its upper side. Each base is fixedly connected with a fixing cover on its outside. The inner wall of the fixing cover is slidably connected to the outside of the sleeve. Each sleeve has four circumferentially distributed grooves, and each groove is slidably connected with a ball bearing.

4. The on-site rockfill compaction test device according to claim 3, characterized in that, Each of the four sleeves has four circumferentially distributed fitting grooves on its outer surface. The inner walls of the fitting grooves are engaged with the outer surface of the balls. Each of the fixed covers has a collar slidably connected to its outer surface. Each collar has an annular groove. Each of the fixed covers has a fixed ring fixedly connected to its outer surface. The outer surface of the fixed ring is slidably connected to the inner wall of the annular groove. A lead screw is movably connected to the moving frame. A movable block is provided on the outer surface of the lead screw. The bottom of the movable block is fixedly connected to the upper side of the hydraulic rod. A drive motor is fixedly connected to the outer surface of the moving frame. The output end of the drive motor is connected to one side of the lead screw through a coupling.

5. The on-site rockfill compaction test device according to claim 4, characterized in that, The four fixing rings are attached to the inner wall of the annular groove on the side away from the threaded rod. A spring is fixedly connected to the side of each fixing ring near the threaded rod. The other end of each spring is fixedly connected to the inner wall of the annular groove. The inner wall of each ring is provided with an annular conical groove. The inner wall of each annular conical groove is in contact with the outside of the ball on the same side. A fixed-point anti-deviation module is provided on the outside of each holding tray.

6. The on-site rockfill compaction test device according to claim 5, characterized in that, The fixed-point anti-deviation module includes multiple symmetrical mounting components. Each mounting component is fixedly connected to the opposite side of the outer surface of the same-side holding tray. Each mounting component has a circular hole, and a cylinder is slidably connected inside each circular hole. Each cylinder is fixedly connected to a positioning ring, and the bottom of each positioning ring is in contact with the outside of the mounting component.

7. The on-site rockfill compaction test device according to claim 6, characterized in that, The inner walls of the cylinders are slidably connected with round rods, the upper sides of the round rods are movably connected with rotating disks, the upper sides of the rotating disks are fixedly connected with pull rods, and the cylinders are provided with T-slots.

8. The on-site rockfill compaction test device according to claim 7, characterized in that, Each of the rotating discs is fixedly connected to a tenon, and the outer side of the tenon engages with the inner wall of the T-slot on the same side. Each cylinder has two symmetrical grooves on its outer side, and the mounting plate has multiple symmetrical slots, the inner walls of which are slidably connected to the outer side of the cylinder on the same side.

9. The on-site rockfill compaction test device according to claim 8, characterized in that, Each of the round rods has two symmetrical rectangular grooves on its exterior. Each rectangular groove is movably connected to a limiting plate. The exterior of the limiting plate is slidably connected to the exterior of the groove on the same side. The upper side of each limiting plate is engaged with the bottom of the mounting plate. Each rectangular groove has a spring fixedly connected to its inner wall.

10. A method for conducting an on-site rockfill compaction test, using the on-site rockfill compaction test apparatus as described in claim 9, characterized in that... Includes the following steps: Step 1: Set up the device at the construction site. Based on the terrain conditions, after the test device is set up, use a leveling and stabilizing module to level the device and keep the mounting plate parallel. Step 2: Place the rockfill treated by the single-factor method on a holding tray, fix the holding tray on the mounting plate using the fixed-point anti-deviation module, and start the hydraulic rod, drive motor and linear motor to make the rolling wheel perform a rolling test on the rockfill in the holding tray.

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