JP2010281139A - Service road structure for tracklayer walking in ballast bed - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a service road structure for tracklayer walking in a ballast bed, which allows rapid and inexpensive execution of service road arrangement under a restricted laying condition of railroad track or under a vehicle traveling condition. <P>SOLUTION: In the service road structure for tracklayer walking in a ballast bed, a square unit pavement material 7A or 7B divided into a number of small blocks 8 through vertical and horizontal joint grooves is used as a pavement material for forming a service road 6 for walking of trackalyer along the ballast bed 3 constituting a track 1. A number of unit pavement materials 7A or 7B are laid along the longitudinal direction of a road shoulder 14 along the ballast bed 3 while causing the unit pavement materials 7A or 7B to copy the surface of the road shoulder 14 by cracks at bottom joint parts of the joint grooves to thereby form the service road 6. A stopping means of ballast 3a is formed by the thickness surfaces of the small blocks 8 along the ballast bed 3 side of the unit pavement materials 7A or 7B forming the service road 6. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a side road structure for walking a track maintenance worker along a ballast roadbed constituting a railroad track.

  The railroad track is formed by raising gravel on the roadbed to form a ballast roadbed, and sleepers are arranged on the ballast roadbed at intervals in the longitudinal direction, and two rails are fixed in parallel on the sleepers. The rail and sleepers are supported by a ballast roadbed.

  Conventionally, there are many cases in which the side road for walking track workers is not provided on the shoulder of the ballast roadbed, and it is the actual situation that the track maintenance workers are walking along the narrow roadside along the ballast roadbed. . The shoulder along the ballast roadbed is narrow and has slopes and unevenness, and there are many track areas where weeds grow, with ballasts scattered on the shoulder, making walking and track maintenance safe and efficient. It is hoped that it will be improved.

  Therefore, for side road construction, work on the side of the track where trains are regularly operated, work in mountains and sloped areas where heavy machinery is difficult to enter, narrow and many uneven slopes There are various constrained construction conditions such as work on the shoulder. In addition, a sign (kilo post) indicating a distance from the starting point, a telephone facility, a traffic light, a signal control panel, and the like are provided on the shoulders of the track.

  The present invention provides a side road structure for walking a track maintenance worker on a ballast roadbed that can be constructed quickly and with a short construction period and with simple work under the above construction conditions.

  In addition, a large amount of budget is required for normal construction to construct a side road along a long railway track. The present invention provides a side road structure for walking track maintenance workers on a ballast road floor where the side road maintenance work can be performed at a low cost.

  In addition, the present invention provides a track maintenance work on the ballast roadbed that appropriately secures the side road for walking track workers and improves the safety and workability of maintenance inspection work by track maintenance workers under the field conditions where the track laying site is limited. It provides a side road structure for walking.

  Further, the present invention provides a side road structure for walking track maintenance workers on a ballast road bed that can appropriately construct a narrow side walk road having a constant width in a non-landing or inclined state of a track laying site.

  The present invention makes it possible to effectively use the pavement material that can be laid on slopes and flats developed by the applicant as a pavement material for the shoulders of railway tracks, and regrets its effects in side road formation. The present invention provides a side road structure for walking track maintenance workers on a ballast roadbed that can be fully demonstrated.

  As a first example of a pavement material for forming a side road for walking track workers along the ballast road floor that constitutes the above-mentioned track, a rectangular unit pavement material divided into a large number of small blocks by vertical and horizontal joint grooves is used. A large number of the unit pavement material is laid across the length of the road shoulder along the ballast roadbed, and the side pavement is formed by laying the unit pavement material along the road shoulder surface by cracking at the bottom joint portion of the joint groove, A ballast stopper is formed on the thickness surface of the small block along the ballast roadbed side of the unit pavement material that forms the side road, and the side road for walking the track maintenance worker is appropriately secured. It is intended to be safe.

  In addition, as a second example of a pavement material for forming a side road for walking track workers along the ballast road bed constituting the track, a unit pavement material in which a large number of small blocks are pasted on the surface of a flexible connecting sheet. The unit pavement material is placed over the length of the road shoulder along the ballast roadbed, and the unit pavement material is laid down according to the flexibility of the flexible connecting sheet to follow the road shoulder surface. Form a side road for walking, and form a ballast stop on the thickness side of the small block along the ballast road floor side of the unit pavement material that forms the side road, and ensure the above side road for walking track workers appropriately However, it is provided for the convenience and safety of work by the same worker.

  Under the conditions of track laying limited by the side road structure shown in the first and second examples above, and under the condition that the vehicle travels on a regular basis, the side road laying work is quickly and inexpensively executed. It can be done.

  From the ballast roadbed formed by raising the above ballast, the ballast spills on the side road and it is difficult to keep the ballast roadbed properly, and there is a problem that it may hinder walking and cause danger, but the unit pavement laid on the shoulder Ballast spilling from the ballast roadbed can be effectively dammed with the thickness of a small block along the ballast roadbed side of the material.

  In addition, the ballast stop plate placed along the side of the small block on the side of the ballast roadbed side of the unit pavement that forms the side road effectively prevents ballast spilling from the ballast roadbed onto the unit pavement. It can contribute to maintenance and side road maintenance effectively.

  The above-mentioned ballast stopper plates and the unit pavement material forming the side road can be connected to each other via a connector.

  As a specific example, the connector has a structure for capturing an adjacent edge portion of an adjacent ballast stopper plate and capturing a corner portion adjacent to the ballast stopper plate of the unit pavement material.

  Further, a ruler wall extending along the side surface of the unit pavement material forming the side road opposite to the ballast road bed, that is, the side surface of the small block opposite to the ballast road bed can be provided. By this ruler wall, a flat side road foundation can be leveled on the shoulder of the ballast road bed, and the width of the side road can be secured.

  According to the present invention, the side road maintenance work can be performed quickly and inexpensively in a short period of time under the limited track laying conditions and under the vehicle running conditions.

  In addition, according to the present invention, while effectively preventing ballast spillage on the thickness surface of the small block forming the unit pavement material, it is possible to appropriately secure a narrow walking side road with a constant width, and by track maintenance workers. The safety and workability of maintenance inspection work can be improved.

  The above-mentioned ballast stopping effect can be more reliably obtained by the ballast stopper plate.

A is a perspective view showing a state in which the side pavement is formed by laying the unit pavement shown in FIG. 3 or 4 on the shoulder of the ballast roadside, and B is the same plan view. 1A is a perspective view showing an example in which a ballast stopper plate is arranged at the boundary between a side road and a ballast roadbed shown in FIG. 1, B is a plan view thereof, and C is a cross-sectional view thereof. FIG. A is a plan view showing a first example of a unit pavement material used for forming the side road, and B is a cross section when a side road is formed with a unit pavement material that does not use a flexible connection sheet for connecting individual small blocks. Fig. C is a cross-sectional view when a side road is formed with a unit pavement material using a flexible connecting sheet for connecting individual small blocks, and D is a side road formed with a unit pavement material lined with a grass control sheet. FIG. A is a top view which shows the 2nd example of the unit pavement material used for the said side road formation, B is a cross-sectional view at the time of forming a side road using this unit pavement material. A is a plan view of a ballast stopper plate, B is a side view thereof, and C is a front view thereof. A is a perspective view of the 1st coupling tool which connects a unit pavement material and a ballast stop board in the location where unit pavement material was laid in series, B is the same side view, C is the same top view, D is the same front view. A is a perspective view of the second connector for connecting the unit pavement material and the ballast stopper plate at the place where the unit pavement material is laid with a corner angle, B is the same side view, C is the same plan view, and D is the same. The front view. A is a perspective view of a third connector for connecting the unit pavement material and the ballast stopper plate at a place where the unit pavement material is laid with an angle of entry, B is the side view, C is the plan view, and D is The rear view.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to FIGS.

  As shown in FIG. 1 and FIG. 2, the railroad track 1 forms a ballast roadbed 3 by raising gravel on the roadbed 2, and sleepers 4 are arranged on the ballast roadbed 3 at intervals over the length. In addition, two rails 5 are fixed in parallel on the sleepers 4, and the rails 5 and the sleepers 4 are supported by the ballast roadbed 3.

  FIG. 3 shows a first example of the unit pavement material 7A for forming the side road 6 for walking track workers along the ballast road bed 3 constituting the track 1. The unit pavement material 7 </ b> A has a rectangular plate shape divided into a large number of small blocks 8 by vertical and horizontal joint grooves 9, and the unit pavement material 7 </ b> A is applied as a pavement material for the side road 6.

  The unit pavement 7 </ b> A has a structure in which a crack 11 is generated in the joint 10 at the bottom of the joint groove 9 due to an external force such as a walking load, and each small block 8 is bent through the crack 11.

  As shown in FIG. 3C, as the unit pavement material 7A, a flexible connecting sheet 12 such as a net sheet passing through all the small blocks 8 and all the joints 10 is embedded in the bottom layer portion, and the small pavement 11 is separated and generated. A unit pavement 7A in which the block 8 is kept connected to the other small blocks 8 by the flexible connecting sheet 12 can be used.

  Further, as shown in FIG. 3B, the unit pavement material 7A is used in which the joining portion 10 is simply formed by the small block forming material and the small block 8 can be separated by cracking without embedding the flexible connecting sheet 12. be able to.

  As shown in FIG. 3D, a unit pavement 7A in which a grass control sheet 13 is attached to the bottom of the unit pavement 7A shown in FIGS. 3B and 3C can be used. The grass restraining sheet 13 functions as a means for maintaining the connection of the small blocks 8 when the joint 11 has a crack 11.

  As shown in FIG. 1, a large number of unit pavement materials 7A shown in FIG. 3 are placed over the length of the shoulder 14 (the shoulder 14 of the roadbed 2) along the ballast roadbed 3, and the bottom joint portion of the joint groove 9 is placed. The side pavement 6 is formed by laying the unit pavement 7A along the surface of the road shoulder 14 by the crack 11 at 10, and the thickness of the small block 8 along the ballast road bed 3 side of the unit pavement 7A forming the side pave 6 is formed. A ballast stopper is formed on the surface to prevent spillage of the ballast 3a on the unit pavement material 7A, thereby contributing to the safety of workers.

  FIG. 4 shows a second example of the unit pavement material 7B for forming the side road 6 for walking track workers along the ballast road bed 3 constituting the track 1. The unit pavement material 7B has a rectangular plate shape in which a large number of small blocks 8 'are attached to the surface of the flexible connecting sheet 12', and the unit pavement material 7B is applied as a pavement material for the side road 6.

  The small blocks 8 'of the unit pavement 7B are arranged in a grid pattern on the surface of the flexible connecting sheet 12', and lattice-shaped joint grooves 9 'intersecting the vertical and horizontal small blocks 8' vertically and horizontally are formed. Each of the small blocks 8 'has a structure that can be bent through a flexible connecting sheet material portion 10' that closes the bottom of the joint groove 9 '.

  As the flexible connecting sheet 12 ', a net sheet is used, or a sheet having a dense structure is used, and this is also used as the grass restraining sheet 13'.

  The grass restraining sheets 13 and 13 'shown in FIGS. 3D and 4 have an overlap margin 13a with the adjacent unit pavement materials 7A and 7B. For example, the overlapping margin 13a is projected from two adjacent sides of the unit pavement material 7A, 7B, and even if the unit pavement material 7A, 7B is reversed by 90 degrees, the overlapping margin 13a is adjacent to the unit pavement material 7A, in the longitudinal direction of the side road. It is made to be piled up on the lower surface of the edge of the 7B grass restraining sheet 13, 13 '.

  As shown in FIG. 1, a large number of unit pavement materials 7B shown in FIG. 4 are laid over the length of the shoulder 14 along the ballast road bed 3, and the unit is made by the flexibility of the flexible connecting sheet 12 ′. The pavement material 7B is laid on the surface of the road shoulder 14 to form the side road 6 for walking track workers, and the small block 8 along the ballast road bed 3 side of the unit pavement material 7B forming the side road 6 is formed. The ballast stopper is formed to prevent the ballast 3a from spilling on the unit pavement material 7B, thereby contributing to the safety of workers.

  The unit pavement materials 7A and 7B are integrally provided with connecting joints 18 on the side surfaces in the side road direction, and are laid on the road shoulder 14 while connecting the unit pavement materials 7A and 7B to each other via the connection joints 18, and a ruler described later. In cooperation with the wall 17, the unit pavement materials 7A and 7B are effectively prevented from slipping.

  The unit pavement materials 7A and 7B shown in FIGS. 3 and 4 are all suitable as a pavement material when the side road 6 is formed on the road shoulder 14 beside the track 1 under the track laying condition.

  With the side road structures shown in the first and second examples, the side road laying work can be performed quickly and inexpensively in a short period of time.

  The unit pavement materials 7A and 7B are rated materials represented by precast concrete manufactured in advance in a factory. The concrete unit pavement materials 7A and 7B include a cement kneaded material that does not contain coarse aggregates such as gravel other than sand.

  As shown in FIG. 2, as a means for more reliably preventing the ballast 3 a from spilling on the upper surfaces of the unit pavement materials 7 A and 7 B forming the side road 6 from the ballast road bed 3, the ballast road bed of the side road 6 is used. A large number of ballast stop plates 15 extending along the side surface on the 3 side are arranged. That is, a large number of ballast stop plates 15 are arranged along the side surfaces of the small blocks 8, 8 'on the side of the ballast road floor 3 of the unit pavement materials 7A, 7B forming the side road 6.

  As the ballast stop plate 15 shown in FIG. 5, a plate material represented by a precast concrete plate prepared in advance at a factory is used. The ballast stop plate 15 rises upward from the upper surface of the side road 6, that is, the upper surfaces of the unit pavement materials 7A and 7B.

  The ballast stopper plates 15 and the unit pavement materials 7A forming the side roads 6A or 7B can be connected via a connector 16.

  The connector 16 has a structure for capturing the adjacent edge portion 15a of the adjacent ballast stopper plate 15 and capturing the corner portions 7A 'and 7B' adjacent to the ballast stopper plate 15 of the unit paving materials 7A and 7B.

  As shown in FIG. 6, the first connector 16 is a connector used when the unit pavement materials 7A and 7B are laid out linearly in plan view, and the second connector 16 is as shown in FIG. In addition, the unit pavement material 7A, 7B is a connecting tool used in the case where the unit pavement material 7A, 7B is bent and laid so as to have a protruding corner portion. This is a connecting tool used when 7B is bent and laid so as to have a corner.

  Any of the coupling members 16 illustrated above are adjacent to the pair of U-shaped fitting portions 16a for fitting and capturing the adjacent edge portion 15a of the adjacent ballast stop plate 15 and the ballast stop plate 15 of the unit pavement materials 7A and 7B. And a pair of U-shaped fitting portions 16b that capture the corner portions 7A 'and 7B'. Both U-shaped fitting portions 16a and 16b have an L shape.

  The U-shaped fitting portions 16a and 16b are composed of a ballast stopper plate 15 or a capturing plate that captures the upper and lower surfaces of the unit paving materials 7A and 7B, and a connecting plate that connects one end of both plates, and has a U-shape.

  The first connector 16 has the U-shaped fitting portions 16a and 16b formed in a rigid body, and the second connector 16 has one U-shaped fitting portion 16a and 16b and the other U-shaped fitting portion. 16a and 16b are connected by a hinge 16c such as a hinge so that they can be expanded and contracted according to the angle of the projected corner, and the third coupling 16 is one U-shaped fitting portion 16a. 16b and the other U-shaped fitting portions 16a, 16b are connected by a hinge 16c such as a hinge so that they can be expanded and contracted according to the angle of entry.

  The connector 16 is not limited to the structure of the U-shaped fitting portions 16a and 16b as long as it has a structure capable of connecting the respective parts, and other capture structures can be adopted.

  As an embodiment of the present invention, as shown in FIGS. 1 and 2, a ruler wall 17 extending along the side surface of the unit pavement 7A, 7B forming the side road 6 opposite to the ballast road bed 3 is arranged. Including the case of By the ruler wall 17, a flat side road base is leveled on the inner side, and the width of the side road can be secured. That is, a side road 6 having a constant road width can be formed between the ballast stopper plate 15 and the ruler wall 17.

  The ruler wall 17 is a concrete curb, steel, or wood manufactured in advance at the factory. Or, it is a concrete wall formed by placing concrete on site, and any material can be used as long as it has a function of determining the width of the side road 6 and preventing slippage. In order to improve the slip prevention effect of the unit pavement materials 7A and 7B, anchor pins can be driven into the joint grooves 9 and 9 'of the unit pavement materials 7A and 7B with respect to the roadbed 2.

  The width of the side road 6 is widened so that the upper surface of the ruler wall 17 has a level substantially equal to the upper surface of the unit pavement materials 7A and 7B, that is, the side roads 6, so as not to obstruct walking. . At the same time, the unit pavement materials 7A and 7B are prevented from shifting to the slope opposite to the ballast roadbed 3 or the like.

  According to the present invention, the side road maintenance work can be performed quickly and inexpensively in a short period of time under the above-mentioned restricted track 1 laying conditions and vehicle running conditions.

  According to the present invention, the narrow sidewalk 6 having a constant width can be formed while effectively preventing the ballast 3a from spilling on the thickness surfaces of the small blocks 8 and 8 'forming the unit paving materials 7A and 7B. It can be secured appropriately, and the safety and workability of maintenance inspection work by track maintenance workers can be achieved.

  The above-described ballast stopping effect can be more reliably obtained by the ballast stopping plate 15.

  Further, it is possible to effectively prevent the unit pavement materials 7A and 7B from being displaced while appropriately securing the side road width at the ruler wall 17.

  DESCRIPTION OF SYMBOLS 1 ... Track, 2 ... Subbase, 3 ... Ballast roadbed, 3a ... Ballast, 4 ... Sleeper, 5 ... Rail, 6 ... Side road, 7A, 7B ... Unit paving material, 7A ', 7B' ... Corner part, 8, 8 '... small block, 9, 9' ... joint groove, 10 ... joint groove joint, 10 '... flexible connecting sheet portion, 11 ... crack, 12, 12' ... flexible connecting sheet, 13, 13 '... Grass restraining sheet, 13a ... stacking margin, 14 ... road shoulder, 15 ... ballast stop plate, 15a ... adjacent edge, 16 ... connecting part, 16a, 16b ... U-shaped fitting part, 16c ... hinge, 17 ... ruler wall, 18 ... connecting joints.

Claims (6)

As a pavement material for forming a side road for track workers walking along the ballast roadbed constituting the track, a rectangular unit pavement material divided into a large number of small blocks by vertical and horizontal joint grooves is used, and the unit pavement material is used. Are placed over the length of the shoulder along the ballast roadbed, and the unit pavement is laid along the road shoulder surface by cracking at the bottom joint of the joint groove to form the side road, forming the side road A side road structure for walking track maintenance workers on a ballast road bed, characterized in that a ballast stopper is formed on the thickness surface of a small block along the ballast road bed side of the unit pavement. As a pavement material for forming a side road for track workers walking along the ballast roadbed that constitutes the track, a unit pavement in which a number of small blocks are pasted on the surface of a flexible connecting sheet is used. A large number of materials are laid over the length of the road shoulder along the ballast road floor, and the unit pavement material is laid along the road shoulder surface by the flexibility of the flexible connecting sheet to form the side road, and the side road A side road structure for walking track maintenance workers on a ballast road bed, characterized in that a ballast stopper is formed on the thickness surface of a small block along the side of the ballast road bed of the unit pavement forming the pavement. The side for track workers walking on the ballast roadbed according to claim 1 or 2, wherein a plurality of ballast stop plates are arranged along the side of the small block on the ballast roadbed side of the unit pavement material forming the side road. Road structure. 4. A side road structure for walking a track worker on a ballast road floor according to claim 3, wherein said ballast stop plate and said unit pavement material forming a side road are connected via a connecting tool. 5. The track maintenance work on a ballast roadbed according to claim 4, wherein the connecting device has a structure for capturing an adjacent edge portion of an adjacent ballast stopper plate and capturing a corner portion adjacent to the ballast stopper plate of the unit pavement material. Side road structure for walking. The side for track maintenance workers walking in the ballast roadbed according to claim 1 or 2, further comprising a ruler wall extending along a side opposite to the ballast roadbed of the unit pavement forming the side road. Road structure.

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