KR101708401B1

KR101708401B1 - Railway Sleeper with Extended Intermediate Block and Its Structure for Reinforcing Ballasted Track and Distributing Wheelset Loads

Info

Publication number: KR101708401B1
Application number: KR1020150074571A
Authority: KR
Inventors: 황성호; 장승엽; 김은
Original assignee: 한국철도기술연구원
Priority date: 2015-05-28
Filing date: 2015-05-28
Publication date: 2017-02-21
Also published as: KR20160139526A

Abstract

The present invention relates to a railway car, in which an intermediate block with longitudinally extending portions and a tie-in portion at its center is arranged in engagement with a railway rail at longitudinally spaced intervals, and a transverse railway The present invention relates to a sleeping reinforcing structure using a load-distributing type sleeping structure and an intermediate block using an intermediate block, which is placed on an extension portion of an intermediate block to distribute the load applied from the rail rail.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a railway sleeper with an extended intermediate block,

The present invention relates to a sleeping structure for supporting a railway rail and a reinforcement structure thereof. More particularly, the present invention relates to a railway rail supporting structure, in which an intermediate block having an extension portion formed in a longitudinal direction (a direction in which a railway rail extends) And a transverse neck disposed in the lateral direction across the two rail rails is placed on the extended portion of the adjacent intermediate block so that the load applied from the rail rail is dispersed and transmitted to the road A sleeping reinforcing structure using a load-dispersing type sleeping structure and an intermediate block using an intermediate block ".

Conventional sleepers for conveying loads from railway railways are arranged to extend in the lateral direction to support two railway rails at the same time. These conventional sleepers are spaced longitudinally apart, with each sleeper being only individually connected to the railway rail by means of a fastening device and without a direct connection between neighboring sleepers in the longitudinal direction. Therefore, the sleepers disposed adjacent to each other in the longitudinal direction have independent behaviors. In this case, there is a limitation in that a local settlement is highly likely to occur when the concentrated load acts on the railway rail. This local settlement ultimately leads to faulty tracks and thus poses a serious threat to railway safety.

Korean Patent Laid-Open Publication No. 10-2013-0022219 (Patent Application No. 10-2011-0085069) proposes a sleeper having a T-shape for reinforcing a sleeper. However, such a T-shaped sleeper requires sufficient load distribution and There is a problem that the effect of preventing local settlement can not be expected. These T-shaped sleepers can only be applied to newly installed rails and are not applicable to existing rails already in use.

Korean Patent Laid-Open Publication No. 10-2013-0022219 (published on Mar. 03, 2013).

The present invention has been developed in order to overcome the limitations of the railway sleeper which has not been solved by the prior art as described above. Specifically, the present invention has been developed so that the load applied to each existing transverse neck is transmitted to the adjacent intermediate block The object of the present invention is to provide a technique capable of effectively preventing sagging and local settlement of a road by dispersing a load transmitted to a road through a sleeper, and thereby reducing a trajectory error.

Particularly, it is an object of the present invention to provide a technique that can be easily applied to maintenance and reinforcement of existing tracks in achieving the above object.

In order to achieve the above object, according to the present invention, there is provided an intermediate block having a sleeping portion coupled to a lower surface of a railway rail and an extension extending to both sides of the sleeping portion in a longitudinal direction; And a transverse neck extending transversely to support the two rail rails simultaneously and to rest on an extension of an intermediate block disposed adjacent to one another in the longitudinal direction; Wherein the load applied to the transverse neck is transmitted to the vehicle body in a dispersed form through the intermediate block.

In order to achieve the above object, according to the present invention, there is provided a structure for reinforcing a transverse neck arranged to support two rail rails at the same time, extending in a transverse direction, wherein a space is secured in a lower portion of the transverse neck, The intermediate block having the extended portion extending on both sides of the sleeping portion in the direction of the longitudinal direction is arranged in the secured space, and the intermediate block is arranged in the longitudinal direction so that the transverse neck is placed on the expanded portion of the intermediate block disposed adjacent to each other in the longitudinal direction And the sleeping part of the intermediate block is connected to the lower surface of the railway rail so that the load applied to the transverse steeck via the railway rail is transmitted to the intermediate block through the expansion part and is transmitted to the roadside by the intermediate block. A sleeper reinforcing structure is provided.

In the sleeping structure and the sleeper reinforcing structure of the present invention, the sleepers have inclined longitudinal sides so that they can have an upwardly tapered shape so as to decrease in size toward the upper side. The lower part of the middle block and the lower part of the lateral neck Further, a protection pad may be further provided, and further, the longitudinally adjacent intermediate block may be arranged such that a gap exists between the extended portions, but the extended portions may be disposed so as to be in close contact with each other.

In the present invention, since the load applied to the transverse neck and the intermediate block is applied to the road surface over a wide area range through the entire bottom surface of the intermediate block, the pressure acting per unit area of the road surface is reduced, And it is possible to remarkably reduce the possibility of occurrence of a track misalignment.

Particularly, according to the present invention, since the intermediate block has an enlarged portion located below the bottom of the lateral neck, it has an advantage that the pressure relief effect can be further enhanced.

1 is a schematic exploded perspective view showing a state in which a sleeping structure according to an embodiment of the present invention is installed.
FIG. 2 is a schematic perspective view showing a state after the sleeping structure according to the embodiment shown in FIG. 1 is installed.
Figure 3 is a schematic plan view of the sleeping structure shown in Figure 2;
Figure 4 is a schematic lateral side view of the sleeping structure shown in Figure 2;
5 is a schematic exploded perspective view showing a state in which a sleeping structure according to another embodiment of the present invention having an upwardly tapered sleeping portion is installed.
FIG. 6 is a schematic perspective view showing a state after the sleeping structure according to the embodiment shown in FIG. 5 is installed.
Figure 7 is a schematic lateral side view of the sleeping structure shown in Figure 6;
8 is a schematic exploded perspective view showing a state in which a sleeping structure according to another embodiment of the present invention having a protective pad is installed.
FIG. 9 is a schematic perspective view showing a state after the sleeping structure according to the embodiment shown in FIG. 8 is installed.
10 is a schematic lateral side view of the sleeping structure shown in Fig.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. Although the present invention has been described with reference to the embodiments shown in the drawings, it is to be understood that the technical idea of the present invention and its essential structure and operation are not limited thereby.

1 and 2 show a schematic exploded perspective view (FIG. 1) and a schematic perspective view after installation (FIG. 2) showing a state in which a sleeping structure 100 according to an embodiment of the present invention is installed, 3 shows a schematic plan view of the sleeping structure 100 shown in FIG. Figure 4 shows a schematic lateral side view of the sleeping structure 100 shown in Figure 2. 1 to 3, the illustration of the road on which the sleepers are placed is omitted for the sake of convenience. The illustration of the drawings is omitted in FIGS. 5, 6, 8, and 9.

As shown in the figure, a sleeping structure 100 according to the present invention includes a sleeping part 11 coupled to a lower surface of a railway rail 200 and an extension part 11 extending to both sides of the sleeping part 11 in a longitudinal direction 12 extending in the transverse direction and supporting the two rail rails 200 at the same time and disposed adjacent to each other in the longitudinal direction on the extension portion 12 of the intermediate block 1 And a transverse neck 2 to be placed thereon.

Specifically, the intermediate block 1 is a member having a sleeping portion 11 and an extending portion 12 extending to both sides of the sleeping portion 11 in the longitudinal direction. The middle block 1 includes a central sleeping portion 11, And the sleeping part 11 protrudes upward so that a step exists between the extending parts 12 on both sides in the direction. The height of the sleepers 11 protruding from the extension 12 is the same as the vertical height of the transverse neck 2 from the upper surface of the extension 12 to the upper surface of the sleepers 11.

The railway rail 200 is placed on the upper surface of the sleeping part 11 and the railway rail 200 and the sleeping part 11 are connected by the fastening means 210. In the present invention, Only the rail rail 200 is supported. That is, the two railway rails 200 are provided with the respective intermediate blocks 1 coupled to each other.

These intermediate blocks 1 are arranged successively along the respective railway rails 200 in the longitudinal direction and there may be a small clearance between the adjacent intermediate blocks 1 to the extension portions 12 as illustrated in the figure , The intermediate block 1 may be arranged so that the longitudinal sides of the extension 12 are in contact with each other, that is, there is no gap between the expansion portions 12.

The transverse neck 2 is a rod-shaped member elongated in the transverse direction and is simultaneously engaged with two rail rails 200 to simultaneously support the two rail rails 200. As mentioned above, in the present invention, the intermediate block 1 is arranged along each railway rail 200 such that the extension 12 is adjacent in the longitudinal direction, And is placed on the extension 12 of the intermediate block 1. That is, the transverse neck 2 is placed over the extended portion 12 of the two intermediate blocks 1.

When loads are applied to the railway rail 200 while the railway vehicle is running on the railway rail 200, the loads are transmitted to the intermediate block 1 and the transverse neck 2, respectively, The load is transmitted to the intermediate block 1 through the extension 12 located below the transverse neck 2. In particular, since the transverse neck 2 extends over the two intermediate blocks 1, the load from the transverse neck 2 is dispersed and transmitted to the two intermediate blocks 1. The load transferred to the intermediate block 1 is applied to the road surface through the entire bottom surface of the intermediate block 1 including the lower surface of the enlarged portion 12.

As described above, in the present invention, the load directly applied to the intermediate block 1 is applied to the road surface over a wide area range through the entire bottom surface of the intermediate block 1 including the lower surface of the expanded portion 12, The load applied to the intermediate block 1 is also transmitted to the intermediate block 1 and applied to the road surface over the entire area of the bottom surface of the intermediate block 1 including the lower surface of the expanded portion 12 as described above . In other words, according to the present invention, the transverse neck 2 positioned adjacent to the longitudinal direction substantially acts as an integral body through the intermediate block 1, and the load applied through the rail rail 200 is large Dispersed and added. Therefore, according to the present invention, the pressure acting on the unit area of the road surface is reduced, thereby effectively preventing deflection and local settlement of the road surface, thereby remarkably reducing the possibility of the occurrence of the track irregularity.

Particularly, in the present invention, the intermediate block 1 can be easily applied to a railway rail currently in common use. That is, the present invention can be applied not only to newly installed railways but also to maintenance or reinforcement of railway rail which is already in use. For example, in the case where the existing railway rail is required to be reinforced, a space in which the intermediate block 1 can be inserted into the lower portion of the transverse neck 2 in the transverse neck 2 already provided at intervals in the longitudinal direction The intermediate block 1 is inserted into the secured space and the transverse neck 2 is positioned on the neighboring extending portion 12 as described above in a state in which the transverse neck 2 is lifted . Since the intermediate block 1 of the present invention supports each railway rail 200 individually, it is particularly easy to apply the present invention to the existing railway track. Therefore, the present invention of reinforcing the railway track by using the intermediate block 1 has an advantage that it can be applied not only to a new railway but also to an existing railway very easily.

5 to 7 illustrate another embodiment of the present invention. FIG. 5 is a schematic view corresponding to FIG. 1 showing a state in which a sleeping structure 100 according to another embodiment of the present invention is installed And FIG. 6 is a schematic perspective view corresponding to FIG. 2 showing the state after the sleeping structure according to the embodiment shown in FIG. 5 is installed. Figure 7 shows a schematic lateral side view of a sleeping structure 100 according to the embodiment shown in Figure 6. 1 to 4, the sleeping part 11 of the intermediate block 1 has a rectangular shape having vertical longitudinal sides. However, in the present invention, the shape of the sleeping part 11 is not limited thereto And the sleeping portion 11 has a longitudinally inclined longitudinal side, as shown in Figs. 5 to 7, so that it may have an upwardly tapered shape in which the cross-sectional area decreases toward the upper side. Of course, the shape of the sleeping part 11 in the present invention is not limited to the rectangular tapered shape having the vertical vertical side shown above, the upward tapered shape having the inclined longitudinal side, and may be variously changed. Other configurations and effects of the embodiment shown in FIGS. 5 to 7 are the same as those of the embodiment shown in FIGS. 1 to 4, and thus a repetitive description thereof will be omitted.

8-10 illustrate another embodiment of the present invention having a protective pad. FIG. 8 is a perspective view illustrating a state in which a sleeping structure 100 according to another embodiment of the present invention is installed. Fig. 9 is a schematic perspective view corresponding to Fig. 2 showing the state after the sleeping structure according to the embodiment shown in Fig. 8 is installed. Figure 10 shows a schematic lateral side view of a sleeping structure 100 according to the embodiment shown in Figure 9. As shown in FIGS. 8 to 10, in the present invention, the first protective pad 3a is disposed on the lower surface of the intermediate block 1 in order to further increase the effect of dispersion of the load by increasing the direct contact area with the gravel- . That is, the intermediate block 1 can be placed on the road surface with the first protection pad 3a interposed between the road and the intermediate block 1. [ The lower surface of the intermediate block 1 may be provided with a second protection pad 3b for buffering the contact between the transverse neck and the intermediate block on the lower surface of the transverse neck 2 separately from the first protection pad 3a.

The first and second protective pads 3a and 3b may be formed of a rubber plate or a synthetic resin plate so that the first and second protective pads 3a and 3b are disposed between the lower surface of the transverse neck 2 and the upper surface of the extended portion 12 of the intermediate block 1, The lower surface of the transverse neck 2 and the upper surface of the enlarged portion 12 of the intermediate block 1 are more closely adhered to each other so that the protective pad 3b is extended from the transverse neck 2 So that the load transfer to the part 12 can be performed more smoothly. Also, the noise generated due to the direct contact between the transverse neck 2 of the rigid material and the intermediate block 1 can be greatly reduced or prevented through the installation of the second protection pad 3b as described above.

As described above, the improvement of the tightness, and hence the effect of smooth load transmission and the prevention of noise generation, are exerted equally in the first protective pad 3a disposed on the lower surface of the intermediate block 1. [ The first and second protective pads 3a and 3b may be applied to the embodiment shown in Figs. 5 to 7 as well.

1: intermediate block
2: transverse neck
3: Protective pad
11: sleepers
12: Expansion part
100: sleeping structure
200: railway rail

Claims

The railroad rail 200 includes a sleeping portion 11 coupled to a lower surface of the rail rail 200 and an extension portion 12 extending to both sides of the sleeping portion 11 in the longitudinal direction. A plurality of members are arranged continuously along the respective rail rails 200 in the longitudinal direction, and the middle portion of each of the rail rails 200 is formed of a member having a shape in which the sleepers 11 are protruded upward so that a step exists between the extending portions 12 on both sides. Block 1; And
(2) extending transversely to support two rail rails (200) simultaneously and to be placed on an extension (12) of two intermediate blocks (1) arranged next to each other in the longitudinal direction ;
The height from the upper surface of the extension section 12 to the upper surface of the sleeping section 11 is the same as the vertical height of the transverse neck 2 so that the rail rail 200 is fastened by the fastening means 210 to the sleepers The load from the rail rail 20 is directly applied not only to the transverse neck 2 but also to the intermediate block 1 by being simultaneously engaged with the upper surface of the portion 11 and the upper surface of the transverse neck 2;
The load applied to each transverse neck 2 is dispersed and transmitted to the two intermediate blocks 1;
And the load transmitted to the intermediate block (1) is transmitted to the road through the entire bottom surface of the intermediate block (1) including the lower surface of the extending portion (12).

The method according to claim 1,
Characterized in that the sleeping part (11) has an inclined longitudinal side so that it has an upwardly tapered shape so as to decrease in size as it goes upward.

3. The method according to claim 1 or 2,
And a first protection pad (3a) is provided under the lower surface of the intermediate block (1).

3. The method according to claim 1 or 2,
Characterized in that a second protective pad (3b) is provided between the upper surface of the extension (12) of the intermediate block (1) and the lower surface of the transverse neck (2).

3. The method according to claim 1 or 2,
Wherein the longitudinally adjacent intermediate block (1) is arranged such that the extension portions (12) are in close contact with each other.

A structure for reinforcing a transverse neck (2) extending in the lateral direction so as to support two rail rails (200) simultaneously,
A space is ensured in the lower portion of the transverse neck 2 to have a sleeping portion 11 and an extending portion 12 extending to both sides of the sleeping portion 11 in the longitudinal direction, An intermediate block 1 made of a member having a shape in which the sleeping part 11 is protruded upward so as to have a step is disposed between the extended parts 12 on both sides in the longitudinal direction is disposed in a secured space below the transverse neck 2 However,
The intermediate blocks 1 are arranged in succession along each railway rail 200 in the direction;
The intermediate block 1 is continuously arranged in the longitudinal direction so that the transverse neck 2 is placed on the extended portion 12 of the two intermediate blocks 1 arranged adjacent to each other in the longitudinal direction, (11) is coupled to the lower surface of the railway rail (200);
The height from the upper surface of the extension section 12 to the upper surface of the sleeping section 11 is the same as the vertical height of the transverse neck 2 so that the rail rail 200 is fastened by the fastening means 210 to the sleepers The load from the rail rail 20 is directly applied not only to the transverse neck 2 but also to the intermediate block 1 by being simultaneously engaged with the upper surface of the portion 11 and the upper surface of the transverse neck 2;
The loads applied to the respective transverse necks 2 through the rail rails 200 are dispersed and transmitted to the two intermediate blocks 1 through the expansion portions 12 and the load transmitted to the intermediate blocks 1 is expanded And is transmitted to the road surface through the entire bottom surface of the intermediate block (1) including the lower surface of the part (12).