CN114518297A - Highway subgrade large-grained stone tamping test device - Google Patents
Highway subgrade large-grained stone tamping test device Download PDFInfo
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- CN114518297A CN114518297A CN202210061235.6A CN202210061235A CN114518297A CN 114518297 A CN114518297 A CN 114518297A CN 202210061235 A CN202210061235 A CN 202210061235A CN 114518297 A CN114518297 A CN 114518297A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
- G01N3/34—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces generated by mechanical means, e.g. hammer blows
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
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Abstract
The invention discloses a large gravel compaction test device for highway subgrade, which comprises an experiment frame, wherein a support frame is fixedly connected to the experiment frame, two sliding blocks are slidably connected to the support frame, two rotating shafts are rotatably connected to the two sliding blocks, a box body is fixedly connected between the two rotating shafts, two ends of the box body are provided with openings, a balancing weight is slidably connected to the box body, two ends of the inner wall of the box body are respectively provided with a mounting groove, a fixing component is arranged in each mounting groove, two ends of the box body are respectively fixedly connected with a shell, sliding plates are respectively slidably connected to the two shells, one side of each sliding block is fixedly connected with a square pipe, a connecting rod is slidably connected to the square pipe, and one end of the connecting rod is rotatably connected with an extrusion plate. The device can tamp the arch cambered surface by arranging the rotating extrusion plate, and the box body is kept in a vertical state during tamping, so that the impact effect of the balancing weight on the sliding plate is not influenced, the tamping effect on roadbed materials in the experiment frame is best, and the efficiency is improved.
Description
Technical Field
The invention belongs to the field of roadbed tamping experiments, and particularly relates to a highway roadbed large gravel tamping test device.
Background
The special tamping processes in the highway engineering comprise dynamic tamping, impact rolling, hydraulic tamping and the like, the special tamping can not be evaluated as separate project, and the tamping process is designed for improving the tamping quality and is an effective construction method for improving the bearing capacity of the foundation in a short time.
When the tamping subgrade, can meet bridge floor or domatic equal arch road surface sometimes, the battering ram is real-time, and current machinery is most can't directly tamp the arch road surface, needs to be adjusted, including adjusting the posture, removes apparatus etc. and is very inconvenient, influences efficiency.
Disclosure of Invention
The invention aims to provide a compaction test device for large rubbles on a highway subgrade.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a highway road bed large aggregate stone tamp test device, includes the experiment frame, fixed connection support frame on the experiment frame, two sliding blocks of sliding connection on the support frame, two rotate on the sliding block and connect two pivots, two fixed connection box between the pivot, the box both ends are the opening setting, sliding connection balancing weight in the box, the both ends of box inner wall all are equipped with the mounting groove, two all be equipped with fixed subassembly in the mounting groove, the equal fixed connection casing in both ends of box, two equal sliding connection sliding plate in the casing, the square pipe of one side fixed connection of sliding plate, the sliding connection connecting rod in the square pipe, the one end of connecting rod is rotated and is connected the stripper plate.
Preferably, one of them one side fixed connection mounting bracket of sliding block, the first motor of one side fixed connection of mounting bracket, the first gear of main shaft excircle fixed connection of first motor, one of them one side of sliding block is rotated and is connected the rotating tube, the excircle fixed connection second gear of rotating tube, second gear and first gear engagement, two the sliding block, one of them are all run through in the pivot is located the rotating tube and is in same axle center with the rotating tube, the inner wall of rotating tube is equipped with spiral groove, one of them the excircle of pivot is rotated and is connected the ball, the ball is located spiral groove.
Preferably, one of them the excircle of pivot is equipped with the spout, sliding connection second slider in the spout, the outside fixed connection third gear of second slider, the third gear rotates with the sliding block to be connected, one side fixed connection backup pad of support frame, the first rack of upper surface fixed connection of backup pad, first rack and third gear engagement.
Preferably, the fixed component comprises a support plate, the support plate is rotatably connected with the box body and is located in the placing groove, a torsional spring is arranged at the rotating connection position of the support plate and the box body, a sliding groove is formed in one side of the box body, a support rod is slidably connected in the sliding groove, a first spring is fixedly connected between the support rod and the side wall of the sliding groove, a through groove is formed in one side of the box body, and the through groove is matched with the support plate.
Preferably, one side fixed connection of one of them sliding block is flexible pipe, the one end fixed connection special-shaped block of flexible pipe, special-shaped block rotates with the box to be connected, the pivot is located flexible intraductal, two the bracing piece is contradicted special-shaped block under the effect of first spring.
Preferably, the special-shaped block is provided with an arc-shaped groove, the arc-shaped block is connected with the arc-shaped groove in a sliding mode, the third spring is fixedly connected between the arc-shaped block and the arc-shaped groove, and the special-shaped block is provided with a first inclined plane and a second inclined plane.
The invention has the technical effects and advantages that: compared with the prior art, the compaction test device for the large rubbles on the highway subgrade provided by the invention has the following advantages:
1. the invention rotates the box body by arranging the rotating extrusion plate, when the box body rotates to be in a vertical state, the sliding plate slides downwards to enable the extrusion plate to be attached to the surface of a roadbed material, the extrusion plate and the connecting rod rotate and incline to enable the extrusion plate to be attached to the arched surface to adapt to the arch, the connecting rod slides in the square tube to enable the lower end of the square tube to be abutted against the extrusion plate, when the clump weight impacts the sliding plate, impact force is directly transmitted to the extrusion plate from the square tube, the damage of the rotating connection part of the connecting rod and the extrusion plate is avoided, when the clump weight is arranged at the bottom of the box body, the clump weight is fixed by the fixing component, then the box body rotates, when the box body rotates the clump weight from the bottom to the upper end, then the clump weight is released by the fixing component, the clump weight impacts the sliding plate at the lower end to tamp the arched roadbed material, and the device can tamp the arched cambered surface by arranging the rotating extrusion plate, and when tamping, the box keeps vertical state, does not influence the striking effect of balancing weight to the sliding plate, and it is best to the road bed material tamping effect in the experiment frame, raises the efficiency.
2. The rotating pipe is arranged, the first motor drives the rotating pipe to rotate, the ball moves in the spiral wire groove, the rotating shaft rotates and moves towards one end of the rotating pipe, the box body rotates to tamp the roadbed material, the box body moves along with the rotating shaft in tamping, other parts are tamped, when the first motor rotates reversely, the box body can move back and forth along with the rotating shaft and rotate in moving, the rotating shaft drives the third gear to rotate on the first rack through the second sliding block in rotating, the two sliding blocks slide on the supporting frame, the box body can move along with the two sliding blocks, the moving range of the box body covers the experiment frame, the device can tamp most positions of the surface of the experiment frame, the use is more flexible, and the experiment is more comprehensive.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an enlarged schematic structural view at E in fig. 1.
Fig. 3 is a schematic structural view of the case.
Fig. 4 is a schematic structural view of the first motor and the rotating tube.
Fig. 5 is an enlarged schematic view of F in fig. 4.
Fig. 6 is a plan view of the case.
Fig. 7 is a schematic cross-sectional view taken along line a-a in fig. 6.
Fig. 8 is an enlarged schematic view of the structure at D in fig. 7.
Fig. 9 is a schematic cross-sectional view at B-B in fig. 6.
FIG. 10 is a schematic diagram of a sampling frame on an experimental frame.
Fig. 11 is an enlarged schematic view of the structure at H in fig. 10.
FIG. 12 is a schematic diagram of the operation of the sample block.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. The specific embodiments described herein are merely illustrative of the invention and do not delimit the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a large gravel compaction test device for highway subgrade as shown in figures 1-12, which comprises an experiment frame 1, wherein a support frame 11 is fixedly connected on the experiment frame 1, two sliding blocks 12 are slidably connected on the support frame 11, two rotating shafts 13 are rotatably connected on the two sliding blocks 12, a box body 14 is fixedly connected between the two rotating shafts 13, two ends of the box body 14 are arranged in an opening manner, a balancing weight 15 is slidably connected in the box body 14, two ends of the inner wall of the box body 14 are respectively provided with a placing groove, a fixing component 4 is respectively arranged in the two placing grooves, two ends of the box body 14 are respectively fixedly connected with a shell 16, a sliding plate 17 is slidably connected in the two shell 16, one side of the sliding plate 17 is fixedly connected with a square pipe 18, a connecting rod 2 is slidably connected in the square pipe 18, one end of the connecting rod 2 is rotatably connected with a squeezing plate 21, one side of the squeezing plate 21, which is close to the connecting rod 2, the end of the square pipe 18 is in an arc groove surface, the arc surface of the extrusion plate 21 is matched with the arc groove surface.
The roadbed material is filled in the experiment frame 1 and the roadbed material is filled into an arch shape similar to a bridge deck, during the experiment, the box body 14 is rotated, when the box body 14 rotates to be in a vertical state, the sliding plate 17 slides downwards, the extrusion plate 21 is attached to the surface of the roadbed material, then, because the experiment frame 1 is in the arch shape, the extrusion plate 21 and the connecting rod 2 rotate and incline, the extrusion plate 21 is attached to the arch surface, then the connecting rod 2 slides in the square tube 18, the lower end of the square tube 18 is abutted to the extrusion plate 21, when the counterweight block 15 impacts the sliding plate 17, the impact force is directly transmitted to the extrusion plate 21 from the square tube 18, the damage of the rotating connection part of the connecting rod 2 and the extrusion plate 21 is avoided, when the counterweight block 15 is arranged at the bottom of the box body 14, the counterweight block 15 is fixed by the fixing component 4, then the box body 14 rotates, when the counterweight block 15 rotates from the bottom to the upper end by the box body 14, then the fixing component 4 releases the counterweight block, make sliding plate 12 of 15 striking lower extremes of balancing weight, tamp arch road base material, box 14 rotates the round, 15 striking of balancing weight are twice, the striking efficiency has been improved, promote sliding block 12 during the striking, make box 14 remove, tamp different positions, form the contrast, through setting up pivoted stripper plate 21, make the device can tamp arch cambered surface, and when tamping, box 14 keeps vertical state, do not influence the striking effect of balancing weight 15 to sliding plate 12, it is best to the road bed material tamping effect in the experiment frame 1, the efficiency is improved.
One side of one of sliding blocks 12 is fixedly connected with a mounting frame 22, one side of the mounting frame 22 is fixedly connected with a first motor 23, the excircle of the main shaft of the first motor 23 is fixedly connected with a first gear 24, one side of one of sliding blocks 12 is rotatably connected with a rotating pipe 25, the excircle of the rotating pipe 25 is fixedly connected with a second gear 26, the second gear 26 is meshed with the first gear 24, two rotating shafts 13 both penetrate through the sliding blocks 12, one of the rotating shafts 13 is positioned in the rotating pipe 25 and is positioned at the same axle center with the rotating pipe 25, the inner wall of the rotating pipe 25 is provided with a spiral wire groove, the excircle of one of the rotating shafts 13 is fixedly connected with a ball 28, the ball 28 is positioned in the spiral wire groove, the excircle of one of the rotating shafts 13 is provided with a sliding groove, the sliding groove is slidably connected with a second sliding block 29, the outer side of the second sliding block 29 is fixedly connected with a third gear 3, the third gear 3 is rotatably connected with the sliding blocks 12, one side of a support plate 31 is fixedly connected with the support frame 11, the upper surface of the support plate 31 is fixedly connected with a first rack 32, and the first rack 32 is engaged with the third gear 3.
The first motor 23 drives the rotating pipe 25 to rotate, the ball 28 moves in the spiral line groove, the rotating shaft 13 rotates and moves towards one end of the rotating pipe 25, the box body 14 rotates to tamp the roadbed material, the box body 14 moves along with the rotating shaft 13 to tamp other parts, when the first motor rotates reversely, the box body 14 can move back and forth along with the rotating shaft 13 and rotate when moving, the rotating shaft 13 drives the third gear 3 to rotate on the first rack 32 through the second sliding block 29 when rotating, the two sliding blocks 12 slide on the support frame 11, the box body 14 can move along with the two sliding blocks 12, the moving range of the box body 14 covers the experiment frame 1, the device can tamp most of the surface of the experiment frame 1, the use is more flexible, and the experiment is more comprehensive.
The fixed component 4 comprises a support plate 41, the support plate 41 is rotatably connected with the box body 14 and is located in a mounting groove, a torsional spring is arranged at the rotating connection position of the support plate 41 and the box body 14, a sliding groove is formed in one side of the box body 14, a support rod 42 is slidably connected in the sliding groove, a first spring 44 is fixedly connected between the support rod 42 and the side wall of the sliding groove, a through groove is formed in one side of the box body 14 and matched with the support plate 41, and the support plate 41 can be penetrated through the through groove and supported by the support rod 42.
When the counterweight block 15 is positioned at the bottom end of the vertical box body 14, the support plate 41 is positioned above the counterweight block 15, one end of the support plate 41 passes through the through groove, and extends out of the housing 14, the support bar 42 is held at one end against the support plate 41, and then the housing 14 is rotated, under the action of the support rod 42 and the support plate 41, the situation that the counter weight 15 slides down too early to affect the tamping effect can be avoided, when the counterweight 15 rotates from the bottom to the upper end, the support rod 42 slides downwards, the support of the support rod 42 is lost, the support plate 41 above rotates and releases the counterweight 15, the counterweight 15 slides downwards to firstly cross the support plate 41 below, then the extrusion plate 21 at the bottom end is impacted, the support plate 41 below is reset to be in a horizontal state under the action of the torsion spring, as the rotation of the housing 14 continues, the support rod 42 gradually slides and re-supports the support rod 42, and the weight 15 is released from the upper end, with the best impact on the sliding plate 12.
One side of one of the sliding blocks 12 is fixedly connected with an extension tube 5, one end of the extension tube 5 is fixedly connected with a special-shaped block 51, the special-shaped block 51 is rotatably connected with the box body 14, the rotating shaft 13 is positioned in the extension tube 5, the two supporting rods 42 are abutted against the special-shaped block 51 under the action of the first spring 44, an arc-shaped groove is arranged on the special-shaped block 51, the arc-shaped block 52 is slidably connected in the arc-shaped groove, a third spring 53 is fixedly connected between the arc-shaped block 52 and the arc-shaped groove, and a first inclined plane 54 and a second inclined plane 55 are arranged on the special-shaped block 51.
When the box body 14 rotates, the special-shaped block 51 and the box body 14 rotate, so that the special-shaped block 51 is always kept in a certain state, the supporting rod 42 slides on the surface of the special-shaped block 51 under the action of the first spring 44, when the supporting rod 42 props against the supporting plate 41 to fix the counterweight block 15, the supporting rod 42 is positioned on the second inclined surface 55, the radius of the second inclined surface 55 is gradually increased, the supporting rod 42 pushes the supporting plate 41 to enable the supporting plate 41 to be attached to one side of the counterweight block 15 along with the increase of the radius, the supporting effect on the counterweight block 15 is better as the radius is increased, when the supporting rod 42 leaves the second inclined surface 55 to slide on the arc-shaped block 52, the supporting rod 42 pushes the supporting plate 41 to enable the supporting plate 41 to be attached to one side of the counterweight block 15, the supporting effect on the counterweight block 15 is maximum at the moment, a height difference exists between the arc-shaped block 52 and the first inclined surface 54, when the supporting rod 42 slides from the arc-shaped block 52 to the first inclined surface 54 as the box body 14 rotates to be in a vertical state, the radius at the first inclined surface 54 is fixed and is smaller than the radius of the second inclined surface 55, form instant release, make bracing piece 42 and extension board 41 disappear to the fixed action of balancing weight 15 in the twinkling of an eye, balancing weight 15 whereabouts in the twinkling of an eye, the mounting groove is got back to extension board 41, bracing piece 42 contradicts first inclined plane 54, the radius of first inclined plane 54 department is fixed and is less than the radius of second inclined plane 55, when first motor 23 reversal, when bracing piece 42 slides arc piece 52 one side from first inclined plane 54, bracing piece 42 promotes arc piece 52 and pushes arc piece 52 into the arc wall, form and dodge, arc piece 52 blocks bracing piece 42 when avoiding the reversal, make the device unable function, the automation of the device has been improved, reduce artifical participation, the stone that can take place during the experiment splashes, avoid personnel to receive the injury.
Two sample frames 56 of one side sliding connection of experiment frame 1, the square pole 66 of one side fixed connection of two sample frames 56, one side sliding connection guide bar 57 of square pole 66, guide bar 57 and square pole 66 fixed connection fourth spring 7, rotate on the backup pad 31 and connect round bar 58, the excircle fixed connection disc 59 of round bar 58, a plurality of stirring pieces 6 of excircle fixed connection of disc 59, the one end fixed connection cam 61 of round bar 58, cam 61 and guide bar 57 mesh, the diameter of disc 59 is greater than the diameter of cam 61, the upper surface of backup pad 31 is equipped with two spouts, equal sliding connection pole setting 62 in two spouts, fixed connection reset spring 63 between two pole setting 62 and the spout, the upper end fixed connection horizontal pole 64 of two pole setting 62, the one end of horizontal pole 64 is rotated and is connected second one-way extension board 65, second one-way extension board 65 cooperatees with stirring piece 6, second one-way extension board 65 is equipped with the torsional spring with horizontal pole 64 junction.
When the rotating shaft 13 slides back and forth on the two sliding blocks 12, one of the rotating shafts 13 pushes the cross rod 64, the second one-way supporting plate 65 at one end of the cross rod 64 pulls the plurality of shifting blocks 6 on the excircle of the disc 59, the disc 59 rotates to drive the cam 61 to rotate by a certain angle, then the rotating shaft 13 slides in the opposite direction, the cross rod 64 is reset under the action of the reset spring 63, during resetting, the second one-way supporting plate 65 rotates to avoid the shifting blocks 6, then the rotating shaft 13 pushes the cross rod 64 again to enable the cam 61 to rotate by a certain angle again, after repeating for several times, the cam 61 protrudes to push out the two sampling frames 56, the tamping effect of the device is conveniently detected, the sampling frames 56 are at different depths, and comparison can be formed.
When the device is used, the first motor 23 drives the rotating pipe 25 to rotate, the box body 14 rotates, the extruding plate 21 and the connecting rod 2 are inclined in a rotating mode, the extruding plate 21 is attached to the arched surface, then the connecting rod 2 slides in the square pipe 18, the lower end of the square pipe 18 is abutted to the extruding plate 21, when the counterweight block 15 impacts the sliding plate 17, impact force is directly transmitted to the extruding plate 21 from the square pipe 18, the box body 14 moves along with the rotating shaft 13, the rotating shaft 13 drives the third gear 3 to rotate on the first rack 32 through the second sliding block 29 when rotating, the two sliding blocks 12 slide on the supporting frame 11, the box body 14 can move along with the two sliding blocks 12, the moving range of the box body 14 covers the experiment frame 1, and when the box body 14 rotates, the counterweight block 15 rotates from the bottom end to the upper end of the box body 14 and falls from the upper end.
In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (6)
1. The utility model provides a highway road bed large aggregate stone tamping test device, includes experiment frame (1), its characterized in that: the experimental box is characterized in that a supporting frame (11) is fixedly connected to the experimental frame (1), two sliding blocks (12) are slidably connected to the supporting frame (11), two rotating shafts (13) are rotatably connected to the two sliding blocks (12), a box body (14) is fixedly connected between the two rotating shafts (13), two ends of the box body (14) are provided with openings, a balancing weight (15) is connected in the box body (14) in a sliding way, both ends of the inner wall of the box body (14) are provided with placing grooves, both placing grooves are internally provided with fixing components (4), both ends of the box body (14) are fixedly connected with the shells (16), the two shells (16) are connected with the sliding plate (17) in a sliding way, one side of the sliding plate (17) is fixedly connected with a square tube (18), the square tube (18) is connected with the connecting rod (2) in a sliding mode, and one end of the connecting rod (2) is connected with the extrusion plate (21) in a rotating mode.
2. The device for testing tamping of large gravel on the highway subgrade according to claim 1, which is characterized in that: one of them one side fixed connection mounting bracket (22) of sliding block (12), the first motor (23) of one side fixed connection of mounting bracket (22), the first gear of main shaft excircle fixed connection (24) of first motor (23), one of them sliding block (12) one side is rotated and is connected rotating tube (25), excircle fixed connection second gear (26) of rotating tube (25), second gear (26) and first gear (24) meshing, two sliding block (12) are all run through in pivot (13), one of them pivot (13) are located rotating tube (25) and are in same axle center with rotating tube (25), the inner wall of rotating tube (25) is equipped with spiral groove, one of them the excircle of pivot (13) is rotated and is connected ball (28), ball (28) are located spiral groove.
3. The device for testing tamping of large gravel on the highway subgrade according to claim 2, wherein: one of them the excircle of pivot (13) is equipped with the spout, sliding connection second slider (29) in the spout, outside fixed connection third gear (3) of second slider (29), third gear (3) rotate with sliding block (12) and are connected, one side fixed connection backup pad (31) of support frame (11), the first rack of last fixed surface connection (32) of backup pad (31), first rack (32) and third gear (3) meshing.
4. The device for testing tamping of large gravel on the highway subgrade according to claim 1, which is characterized in that: fixed subassembly (4) include extension board (41), extension board (41) rotate with box (14) and are connected and lie in the mounting groove, extension board (41) rotate the junction with box (14) and are equipped with the torsional spring, one side of box (14) is equipped with the spout, sliding connection bracing piece (42) in the spout, the first spring of fixed connection (44) between bracing piece (42) and the spout lateral wall, one side of box (14) is equipped with logical groove, lead to the groove and cooperate with extension board (41).
5. The device for testing tamping of large gravel on highway subgrade according to claim 3, wherein: one side fixed connection of one of them sliding block (12) is flexible pipe (5), the one end fixed connection special-shaped piece (51) of flexible pipe (5), special-shaped piece (51) rotate with box (14) and are connected, pivot (13) are located flexible pipe (5), two bracing piece (42) contradict special-shaped piece (51) under the effect of first spring (44).
6. The device for testing tamping of large gravel on highway subgrade according to claim 5, wherein: the special-shaped block is characterized in that an arc-shaped groove is formed in the special-shaped block (51), the arc-shaped groove is connected with the arc-shaped block (52) in a sliding mode, the arc-shaped block (52) and the arc-shaped groove are fixedly connected with a third spring (53), and a first inclined surface (54) and a second inclined surface (55) are formed in the special-shaped block (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210061235.6A CN114518297B (en) | 2022-01-19 | 2022-01-19 | Highway subgrade large-grain stone ramming test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210061235.6A CN114518297B (en) | 2022-01-19 | 2022-01-19 | Highway subgrade large-grain stone ramming test device |
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| CN114518297A true CN114518297A (en) | 2022-05-20 |
| CN114518297B CN114518297B (en) | 2023-09-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118029361A (en) * | 2024-04-10 | 2024-05-14 | 山东雷石工程建设有限公司 | Self-cleaning type tamper for engineering |
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| CN208618389U (en) * | 2018-06-28 | 2019-03-19 | 武汉市市政路桥有限公司 | A kind of weak subgrade tamping unit |
| CN109024540A (en) * | 2018-08-01 | 2018-12-18 | 深圳市南硕明泰科技有限公司 | A kind of rammer compacter for building with efficient compacting foundation function |
| WO2020103838A1 (en) * | 2018-11-20 | 2020-05-28 | 山东大学 | Method and system for determining foundation bearing capacity during high-speed hydraulic tamping in real time |
| CN210439109U (en) * | 2019-07-09 | 2020-05-01 | 中建桥梁有限公司 | Road surface bridge floor tamping device |
| CN210604242U (en) * | 2019-10-09 | 2020-05-22 | 孙桂霞 | Building material strength detection device |
| CN212452575U (en) * | 2020-05-09 | 2021-02-02 | 罗东超 | Road bridge is road bed tamping unit for construction |
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| CN112459040A (en) * | 2020-11-17 | 2021-03-09 | 王�忠 | High-stability rammer compactor for building construction |
| CN113322924A (en) * | 2021-05-11 | 2021-08-31 | 浙江解放装饰工程有限公司 | Ramming device for building construction |
| CN215210967U (en) * | 2021-05-20 | 2021-12-17 | 李春兰 | Rammer plate structure of rammer compactor for earthwork roadbed construction |
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| CN118029361A (en) * | 2024-04-10 | 2024-05-14 | 山东雷石工程建设有限公司 | Self-cleaning type tamper for engineering |
| CN118029361B (en) * | 2024-04-10 | 2024-06-07 | 山东雷石工程建设有限公司 | Self-cleaning type tamper for engineering |
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