JPH01198902A - Vibro-tamping device sleeper lower track bed - Google Patents

Abstract

PURPOSE:To tamp any looseness in ballast so effectively by giving vibration in a state of setting a vibro-tamping device tightly to a rail position, together with static load. CONSTITUTION:A static loading cylinder 10 is installed in the lower part of an under frame 5 of rolling stock 1, and a tip of the rod 11 is connected to the top of a mounting member 21 of a loading plate 22. A static load-vibration additional device 9, provided with an exciter 20, is installed on the top of this loading plate mounting member 21, and a rail float preventer 6 and a rail chamber 8 are installed in the underframe 5. With this constitution, any looseness in ballast of a track bed can be effectively tamped tightly.

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention is directed to the problem of one L downward deviation (height deviation) in the longitudinal direction of railway tracks, and II? Misalignment in i direction (misalignment)
and vertical difference between left and right rails (excluding cant value)
It is possible to effectively compact the looseness of the track bed that inevitably occurs when vibration compaction is performed using a tie tamper or multiple tie tamper, etc. on the track bed around the sleepers in order to correct the deviation (level deviation). , relates to a vibration compaction device for the bed under sleepers.

(Prior Technology) Railway tracks suffer from uneven subsidence in the longitudinal direction of the rails due to repeated loads from trains.

This causes the rail to become uneven in height and level, and the track bed that supports it becomes solidified.

To avoid this, conventionally, a hand-held vibratory compaction device called a titanpa or a large-scale vibratory compaction machine called a multiple titanpa is used to loosen the compaction and correct the misalignment of the rail surface. .

However, a titanpa or multiple titanpas can exceed the force required to loosen a consolidation by 1 minute;
Although there is no problem in making the support elasticity of the roadbed uniform, the desired results have not necessarily been obtained in terms of compacting the roadbed, which is in a fluid state due to lifting motion. This means that the theoretical correction value for orbital deviation due to multiple titanpas is 0.
．． 2 to 0.3, but in reality it is 0.7 to 0.8
This is also inferred from the fact that only the following results are obtained.

- On the other hand, a method has been put into practical use in which a device called a dynamic stabilizer applies vibration to the rail immediately after work using multiple tie tampers, and the propagated vibration compacts the trackbed ballast at the bottom of the sleepers. Since the device 5 itself is holding the rail and giving vibration to the rail, the device 5 itself cannot properly correct the deviation of the track along with the rail, and since stress is applied to the rail, it makes a lot of noise. There was a problem in that this occurred.

In addition, track deviation caused by repeated loads from trains is an unavoidable problem in railways that use trackbeds, but as mentioned above, conventional trackbed compaction equipment does not perform effective compaction, so There was a problem that later errors occurred and it was not possible to obtain the expected correcting effect of the theory (1+'1).

(Problems to be Solved by the Invention) In view of the above-mentioned current situation, the present invention has been developed to improve the vibration of a sleeper track bed that enables effective compaction of the track bed and also reduces the progress of track deviation after straightening. It is intended to provide a compaction device Ft.

(Means for solving the problem) A static loading cylinder is provided at the bottom of the underframe of the vehicle, and a loading plate is attached to the tip of the rod of this static loading cylinder via a connecting member and an elastic body. A static loading/vibration adding device is provided which is connected to the top surface of the loading plate mounting member and includes a vibration device on the top surface of the loading plate mounting member. The underframe is further provided with a rail fixing device comprising a rail floating prevention cylinder device for preventing the rail from floating and a rail clamping device for clamping the rail.

Further, in order to more reliably fix the rail, it is best to provide a separate underframe for each underframe, or to make the underframe more than twice as rigid as the rail.

Moreover, in order to effectively propagate both the static load and the vibration to the deep part of the trackbed, an elastic member such as rubber may be used as the elastic body.

Further, in order to improve the efficiency of compaction work, a plurality of loading plates may be provided in the longitudinal direction of the rail or the sleeper.

In addition, in order to expand the compaction range of the roadbed and make it possible to compact a single curved section at a branch point, we installed a loading plate lateral movement device on the static loading/vibration adding device, and a static loading/vibrating adding device A lateral movement device and a rotation device (27) may be provided, and these devices may be used alone or in combination.

Place the loading plate of the static A/vibration adding device between the sleepers, fix the rail position with the rail lifting prevention cylinder device and the rail clamp device, and place the static loading cylinder and vibration adding device on the #q plate. A device applies static loading and vibration.

As a result, the loosened roadbed between the sleepers and under the adjacent sleepers is compacted to the highest density. In addition, when expanding the compaction range of the roadbed or compacting one branch point or curved section, the lateral movement device, rotation device, or loading plate lateral movement device attached to the static loading/vibration device should be adjusted in a timely manner. Activate.

(Example) The present invention will be described below according to an example shown in FIGS. 1 to 12. Items with the same symbol indicate the same component.

In FIG. 1, 1 is a vehicle, 2 is a wheel, 3 is a rail, and 4 is a sleeper. 5 is the underframe of the vehicle l. This frame 5
A static loading/vibration applying device 9 according to the present invention is provided at the lower center in the longitudinal direction.

Rail floating prevention cylinder devices 6 are provided symmetrically on both sides of the static load/vibration applying device 9 in the rail longitudinal direction. The rail floating prevention cylinder device 6 has its rod 6a
By lowering the rail, the rail abutting member 7 attached to the tip comes into contact with the opposing rail tread surface, and is arranged so as to prevent the rail portion from floating up with a predetermined pressure. Also.

A rail clamp device 8 is provided symmetrically to the outside of the rail anti-levitation IL cylinder device 6 in the longitudinal direction of the rail, with the static load/vibration addition device rFt9 as the center. Figure 2 (
Is there a rail clamp device in a)? Details of an example of f8 are shown.

One upper end of the claw 23 is coupled to a fixing member 26 fixed to the underframe 5, and the l end of the member 24 is fixed to the other top of the mold 23. The other end of the member 24 is connected to the tip of a rod of a cylinder 25, the I end of which is connected to a predetermined portion of the underframe 5. By doing so, the tip locking portion 231 of the claw 23 can be connected to the neck of the rail 3 by moving the rod of the cylinder 25 forward and backward, and the rail 3 can be clamped.

As will be described later, in order to fix the rail position, the rail clamp device 8 clamps six parts of the rail 3, and at the same time, the rail floating prevention cylinder device 6 presses the opposing rail tread to prevent floating. conduct.

In the case of a 3° clamp for a neckless rail such as an expansion joint or a turnout, use the 23° claw shown in FIG. 2(b) in place of the claw 23 shown in FIG. 2(a). The end connecting portion 231° of the rail 3" may be connected to the bottom surface of the rail 3".

The rail clamp device is shown in Figure 2 (al, (
In addition to the one shown in b), various known rail clamp devices can be used.

FIGS. 3(a) and 3(b) show details of an example of the static load/vibration applying device 9. FIG.

Reference numeral 10 denotes a static loading cylinder, the upper end of which is bolted to the underframe 5, and the tip of its rod 11 is bolted to the center of the upper surface of the connecting member 13. On both sides between the underframe 5 and the connecting member 13, centering on the static aR cylinder IO,
A guide rod 12.12 is symmetrically provided. The lower end of this guide rod 12.12 is fixed to the upper surface of the connecting member 13, and the upper part is movable in the vertical direction through I' through hole 51 formed in the underframe 5. Connecting member +3 A supporting member 18 is provided at both lower ends of the rail 3. The lower part of the central part of the connecting member 13 in the direction of the long hair is formed as a single body with a cross-sectional shape, and the vertical parts 14 on both sides of the connecting member 13 are formed in the direction of the long hair of the rail 3. One end of the connecting member 15 is fixed to one end of the connecting member 15 via the fixing member 151, and the F end of the connecting member 15 is attached to a loading plate at two or more places in the right angle direction. It is fixed by a fixing member 152 via a fixture 17 provided on the upper part of the member 21 and an elastic body 16 such as rubber.

ii located inside the fixture 17! &1 plate mounting member 2
A vibration device 20 is fixed approximately at the center of the device 1 . The loading plate mounting member 21 facing the F support member 18 includes:
An elastic body 19 made of rubber or the like is provided. A box-shaped loading plate 22.22 is provided at the bottom of the loading plate mounting member 21, sandwiching the rail 3 therebetween and positioned between the sleepers. The configuration described above is provided on the underframe of the vehicle 1 for each rail on both the left and right sides. That is, the embodiment shown in FIGS. 3(a) and 3(b) is the embodiment shown in FIG.
This is an example shown in a).

FIGS. 4(a) and 4(b) show a static loading/vibration applying device 9 installed so that a pair of loading plates 22 provided at both ends of a loading plate mounting member 21 are parallel to the longitudinal direction of the rail. In this example, the arrangement of the loading plate shown in FIG. 6 (1)), that is, -
・This is an example in which eight loading plates are installed on both sides of the wooden sleeper 4, in the direction of the long hair of the sleeper, in positions that sandwich the rails on both sides.
This is the same as shown in Figures (a) and (b). Figure 4 (
To achieve the configuration shown in a) and (b), please refer to Fig. 3(a).
And what is necessary is just to provide the structure shown in (b) rotated by 90@ on both sides of the rail 3. However, a pair of loading plates 22.
The spacing 22 needs to be larger than that shown in FIG. 3(a) because the sleepers are sandwiched between them.

In this embodiment, the loading plate mounting member 21 is arranged parallel to the rail 3, and unlike the first embodiment, the loading plate mounting member 21 is not arranged on the rail-1 in a direction perpendicular to the long hair direction of the rail. Therefore, regardless of the height of the rail 3, the static loading/vibration applying device 9 can be located at a low position.

On the other hand, when compacting branch points, expansion joints, or curved sections, the static loading/vibration applying device 9 can be moved along the underframe 5, as shown in FIGS. 5(a) and (c). Alternatively, the position of the loading plate 22 may be adjusted so as to be rotatable about a predetermined point on the underframe 5.

FIG. 5(a) shows a lateral movement device for moving the static loading/vibration adding device 9 having a pair of loading plates 22, 22 along the longitudinal direction of the sleeper 4. There is.

The lateral movement device includes a guide rod 12.12 and a static loading cylinder 10.
and a holding box 27 whose bottom part slides on a slide plate 301 and a guide plate 30 provided on the frame 5. It is composed of a slide plate shown as 301 in FIG. 5(b) and a cylinder 282 fixedly disposed on the underframe 5 in a horizontal position.

FIG. 5(b) shows the static loading cylinder 10 as shown in FIG. 5(a).
This is a cross-sectional view taken along line A-A' of FIG. As a result, the cylinder lO is held in the holding box 27. The guide rod 12.12 is also held in the holding box 27. The tip of the rod 281 of the cylinder 282 is connected to a fixed point 283 of the holding box 27 through a pin. Note that 273 and 51 in FIG. 5'(b) are notches formed in the holding box 27 and the underframe 5 for lateral movement of the static loading cylinder 10 and the guide rods 12.12.

In such a configuration, rod 28 of cylinder 282
The vibration device 9 moves the slide plate 3011- in the arrow direction in FIG. 5(a) along the guides 272 provided on both sides of the outside of the holding box 27, and loads the Adjust the position of the plate 22 in the direction of the arrow.

FIG. 5(c) shows a rotating device n for rotating the static load/vibration applying device 9 around a predetermined point 104 on the underframe 5.
29 is shown.

The rotation device 29 includes a static loading cylinder 10 and a guide rod +2.
It is composed of a holding box 31 holding '+2' and a cylinder 32 fixedly disposed vertically on the underframe 5, and a rod 33 of the cylinder 32 is coupled to a fixing member 34 fixed to the holding box 31. The static loading cylinder 10 is shown in FIG.
As shown in Figure 5(d) when viewed from the -B' cross section, the trunnion shaft +01 is attached to both sides of the frame of the static loading cylinder lO.
, and this trunnion shaft 101 is fixed to both sides of the holding box 31 and the underframe 5 through 11 mounting flanges 104 (
It is pivoted at a predetermined point). Further, a washer 105 is interposed between the underframe 5 and the holding box 3I. Guide rod 12.
12 is also fixed to the holding box 31.

With this configuration, by moving the rod 33 of the cylinder 32 upward and downward, the static loading/vibration applying device 9 having a pair of loading plates 22 and 22 is moved in the direction of the arrow around a predetermined point 104. The horizontal height position of the loading plate 22 can be adjusted by rotating the loading plate 22.

Note that 311 and 311 are notches provided in the holding box 31 for rotation of the static a-load cylinder lO2 guide rod 12.

Seventh, Figures (a) and (b) show a pair of loading plates 22.
A loading plate lateral movement device j635 is shown that laterally moves the loading plates 22 toward each other or away from each other. Screw holding members 36 are provided at the lower portions of both ends of the loading plate mounting member 21 . A guide shaft holding member 36A is provided at the lower center of the loading plate mounting member 21. l pairs of loading plates 22.
22 are located between the guide shaft holding member 36A and the screw holding members 36 at both ends. Screw holding member 3
A screw shaft 38 is provided between 6.36 and screwed into a screw provided at the upper part of the a cargo handler 22. of the screw shaft 38;
For example, the left outer periphery 39 of the guide shaft holding member 36Δ in FIG. 7(a) has a left-handed thread, and the right outer periphery 40 has a right-handed thread. For example, a hydraulic motor 41 is provided at one end of the screw shaft 38.

As shown in FIG. 7(b) taken from the E side of FIG. 7(a), there is a guide shaft 37.37 between the screw holding members 36.38.
° is held by passing through the loading plate 22.22 and the guide hole of the guide shaft holding member 36A. Note that 42 is a slide provided on the loading plate 22.

With this configuration, the hydraulic motor 41 is
By reversing, the loading plates 22,22 can be moved on the slides 42 toward each other or away from each other. In FIG. 7(a), a lateral moving device of the static loading/vibration adding device shown in FIG. 5(a) is provided in addition to the above-mentioned loading plate lateral moving device.

Therefore, by the lateral movement device of the static loading/vibration adding device, l
After adjusting the lateral position of the pair of loading plates 22.22, aq
The plate lateral movement device 35 allows the interval between the pair of loading plates to be adjusted.

Figure 8 shows the static loading/vibration application device shown in Figure 5(c).
Ii! shown in Figures (a) and (b)! Load plate horizontal plate lateral movement device 35
After adjusting the spacing between the loading plates, the left and right height positions of the loading plates can be adjusted.

9 and 10 are modifications of FIGS. 5(a) and 5(c), respectively, and these modifications include a static loading cylinder of 10 degrees, a guide rod of 12 degrees, and a holding box of 27 degrees. A vibrating device 20° is provided for each loading plate, and each loading plate 22 is laterally moved or rotated separately and independently. Cylinder 2 for lateral movement of lateral movement device
82° is fixed to the guide 272°, and the tip of the rod 281° is coupled to a fixed point on the left holding box 27°, but on the back side, although not shown, a cylinder is fixed to the guide 272°. The rod was pinned to a fixed point at 27° of the right holding box. Another lateral displacement device 28° is provided. Therefore, the rod 281° of the illustrated moving cylinder 282° is advanced.

By moving backward, the left holding box 27° can be adjusted to move laterally in the direction of the arrow, and the rod of the rear cylinder can be moved forward.
By retreating, the right side holding box 27° can be adjusted to move laterally in the direction of the arrow, thereby allowing each loading plate 22 to be moved laterally separately and independently. In the case of Figure 10,
A holding box 31", 31° provided for each loading plate 22,
Rotating cylinder 3 provided vertically on the top surface of the underframe 5
By lowering the 2" rod one step, the holding box 31',
31'' can be rotated separately and independently in the direction of the arrow around a predetermined point +04°, and since each Vi load can be rotated separately and independently, it is possible to rotate the loading plate in the case of complex terrain. Height position adjustment can be easily performed.

11(a) and 11(b) show that an rn line portion 36 parallel to the longitudinal direction of the sleeper is formed on the lower surface of the box-shaped loading plate 22 of the static loading/vibration applying device 9, and the apex line portion 36 is the center. By forming the lower surface of the a flange plate 22 in this shape, shearing force is generated inside the track bed, and the flow and tightening of the track bed is reduced. It is intended to facilitate hardening.

In such a configuration, compaction of the road bed according to the present invention is performed as follows.

After the vehicle 1 has been driven to the compaction position of the roadbed, it is stopped and the loading plate 22 of the static loading/vibration adding device 9 is moved as shown in FIG. 6(a).
Or, as shown in Figure 6(b), it should face the track bed between the sleepers. After that, six parts of the rail are clamped by the rail clamp device 8, and the rail floating prevention IF cylinder device installed on both sides of the static load/vibration adding device 9 at the lower center of the underframe 5 of the vehicle 1 is then used. The rod 6a of No. 6 is lowered, and the rail abutting member 7 attached to the tip of the rod is brought into contact with the opposing rail tread surface, and a predetermined hydraulic pressure is applied to prevent the rail from floating. Thereby, using the underframe 5 as a fulcrum, the rail position of the relevant portion is fixed by the cooperative action of both wheels.

In the present invention, it is best to use a frame 5 that has a bending rigidity twice or more that of the rail.

Thereafter, the vibration device 20 is driven and the rod 11 of the static loading cylinder 10 is lowered. As a result, the static load/vibration applying device 9 descends using the guide rods 12.12 as a guide, applies a predetermined static loading force to the trackbed between the sleepers via the loading plate 22, and also places the loading plate 22 on the trackbed. A predetermined excitation force is applied through it. That is, with the rail position fixed, a predetermined static load and a predetermined excitation force are applied to the track bed between the corresponding sleepers.

In this case, the static load is applied to the loading plate 22 through shearing deformation of the elastic body 16, such as rubber, inserted between the elastic body 19 or the connecting member +5 and the fixture 17, so it is soft and flexible. It is possible to perform static loading with good linearity, and when an excessive inclination occurs to the left and right, it is supported by the elastic bodies 19 on both sides, and in addition to the static loading, a predetermined application by the vibration device rt can be applied. The vibration force can be applied to the deep part of the track bed. In addition, the vibration device n20 may be vibrated after pressing the static load cylinder 10 (+1 temporary 22) against the track bed with a predetermined pressure. The bed particles are brought into close contact with each other, and a vibration force is applied to fluidize the bed particles in that range.The static one-way pressure transmitted to the fluidized bed particles compacts them, reducing the vibration force or This is fixed by stopping the transmission of vibrations by reducing the static load.

In this way, it is possible to fluidize and compact the roadbed portion between the sleepers and under the adjacent sleepers.

When the fluidization and compaction of the track bed between the sleepers is completed, the rail position identification by the rail floating prevention cylinder device 6 and the rail clamp device 8 is released, and the static loading cylinder 1
By tilting the lot 11 of 0, the static loading/vibration applying device 9 is moved to a predetermined position, the vehicle 1 is moved forward to the next work section, and the trackbed is fluidized and
Perform compaction.

FIG. 12 shows another embodiment of the present invention, in which a separate underframe 36 is provided in the underframe portion where the static/load/vibration adding device 9 is provided, and the rigidity of the underframe portion is improved. It is the same as the one shown in Figure 1, except that it measures the distance. In the embodiment shown in FIG. 12, compaction of the road bed according to the present invention can be continuously performed by sequentially driving the Meishin cylinders as described above by operating an operation panel (not shown) mounted thereon. The number of working speeds of multiple titanpa is 1.
The prospect of realizing a working speed corresponding to 0.00 m/h was obtained.

(Effects of the Invention) By using the device according to the present invention, vibration is applied along with a static load while the rail position is fixed, so vibration acceleration is transmitted deep into the trackbed up to the sleeper. The particles in the track bed are fluidized, and the loosened part of the track bed is subjected to three-way pressure of static loading, for example, the fluidized granules in the track bed part in the range from between the sleepers to below both sleepers are brought to maximum density. Since the compaction can be performed with the same method, a sufficient straightening effect can be achieved, and the progression of track deviation can be significantly reduced compared to conventional equipment.

(2) Regarding the configuration of the device, in the present invention, 1
The bending rigidity of the underframe is set to be more than twice that of the rail, and the rail position 1n is fixed by the rail floating prevention +1 cylinder device and the rail clamp device, so that the rail position can be reliably fixed.

(3) Static loading is applied through shearing deformation of the elastic body of the rubber track, so it is possible to perform static loading that is soft and has good linearity, and both static loading and vibration can be applied to the trackbed as an a-effect. As a result, it is possible to compact the loosened granules in the bed between the sleepers and beyond the center of the adjacent sleepers to the maximum density.

(4) Since a plurality of cargo handling units are arranged in the longitudinal direction of the rail or the longitudinal direction of the sleepers as shown in Figure 6 (a) and (b), in addition to the effect of (1) above, the continuity of the trackbed It is possible to efficiently perform compaction work at maximum density.

(5) The lateral movement device, rotation device, and loading plate lateral movement device enable lateral movement and rotation of 1 pair of loading plates and adjustment of the loading plate interval, and also lateral movement and rotation of each cargo handling device. The movements can be performed separately and independently, so there is only one branch point,
It is possible to easily adjust the horizontal and vertical positions of the loading plate at expansion joints or curved sections, and to easily perform accurate and continuous compaction of the trackbed.

(6) By shaping the lower part of the loading plate as shown in FIG. 11, shearing force can be generated inside the trackbed, and fluid compaction of the trackbed can be easily performed.

[Brief explanation of the drawing]

FIG. 1 is a front view showing an embodiment of the present invention, FIG. 2(a) is a front view showing an example of a rail clamp device used in the present invention, and FIG. 2(b) is a front view showing an example of a rail clamp device used in the present invention. FIG. 3(a) is a front view showing another example of the rail clamp device, FIG. 3(a) is a front view showing details of the static J&(R. 4(a) is a side view with the support member 18 and elastic body 19 removed; FIG. 4(a) is a front view showing another arrangement example of the static loading/vibration applying device used in the present invention; FIG. 4(b) is a side view of FIG. 4(a) with the support member 18 and elastic body 19 removed, and FIG. 5(a) is a static load/vibration adding device used in the present invention. A side view of η with a lateral movement device added, FIG. 5(b) is the A-A of FIG. 5(a)
. Line sectional view, Figure 5(C) is a front view of the static loading/vibration applying device with a rotating device added, and Figure 5(d) is Figure 5(c).
FIG. 6(a) is a plan view showing an example of arrangement of the loading plate according to the present invention, and FIG. 6(b) shows another example of arrangement of the loading plate according to the present invention. A plan view, FIG. 7(a) is a front view and FIG. 7(b) showing an embodiment of the present invention in which a lateral movement device and a loading plate lateral movement device are added to a static loading/vibration adding device.
) is a side view of the aR plate lateral movement device shown in FIG. 7(a), and FIG. 8 shows an embodiment of the present invention in which a static a-load/vibration adding device is combined with a rotating device and a loading plate lateral movement device. Front view, Figure 9 is a front view showing a device in which the static load/vibration adding device's a cargo handling can be moved laterally separately, and Figure 1θ is the front view showing the device in which the loading plate of the static loading/vibration adding device can be moved separately and independently. FIG. 11(a) is a front view of a rotatable device, and FIG.
) is a plan view of FIG. 11(a), and FIG. 12 is a front view showing another embodiment of the present invention. Heat, 1. Vehicle, 311. Rail, 40. , sleepers, 5
009 frame, 6. ,, Railon 7-hi anti-IL device, 80
0. Rail clamp device, 930. Static loading/vibration application device, 10. .

Claims (1)

[Scope of Claims] 1) A static loading cylinder is provided at the lower part of the underframe of the vehicle, and a loading plate is attached to the lower part of the static loading cylinder by connecting the rod end of the static loading cylinder with a connecting member and an elastic body. A static loading/vibration adding device connected to the top surface of the plate mounting member and having a vibration device provided on the top surface of the loading plate mounting member is provided, and a rail floating prevention cylinder device that prevents the rail from floating on the underframe; 2) A vibration compaction device for a track bed under a sleeper, characterized in that it is provided with a rail fixing device consisting of a rail clamp device for clamping the rail.2) A patent claim in which the bending rigidity of the underframe is at least twice that of the rail. 3) Vibration compaction device for a sleeper bed as described in Scope 1 3) Claims that use an elastic member such as rubber as the elastic body, and apply a static load to the loading plate via the elastic body. 4) Vibration compaction device for a bed under sleepers as described in claim 1. 4) Four loading plates are provided in the longitudinal direction of the sleepers so as to sandwich the rails on both sides between the sleepers. 5) Vibration compaction device for a sleeper bed as described in Claim 1, wherein a total of eight loading plates, four each in the longitudinal direction of the sleeper, are provided on both sides of the sleeper, sandwiching one sleeper. 6) A sleeper lower track bed vibration compaction device as described in claim 1, wherein the pair of loading plates of the static loading/vibration adding device are movable in the longitudinal direction of the sleeper centering on the rail. Vibration compaction device for under-sleeper track bed 7) Under-sleeper according to claim 1, in which a pair of loading plates of the static loading/vibration adding device are movable in the longitudinal direction of the rail centering on the sleeper. Vibration compaction device for track bed 8) Vibration of track bed under sleepers according to claim 1, wherein a pair of loading plates of the static loading/vibration adding device are rotatable around a predetermined point on the underframe. Compaction device 9) Vibration compaction of a trackbed under a sleeper according to claim 1, in which the loading plates of the static loading/vibration adding device are independently movable in the longitudinal direction of the sleeper centering on the rail. Device 10) A vibration compaction device for a trackbed under a sleeper according to claim 1, in which the loading plates of the static loading/vibration adding device are independently movable in the longitudinal direction of the rail around the sleeper. 11) A vibration compaction device for a track bed under a sleeper according to claim 1, in which the loading plates of the static loading/vibration adding device can be independently rotated around predetermined points.12) Static loading - The sleeper lower bed according to claim 1, wherein a peak parallel to the longitudinal direction of the sleeper is formed on the lower surface of the loading plate of the vibration applying device, and a mountain shape is formed with both sides symmetrically inclined around the peak. vibratory compaction equipment