JP2005002781A - Rolling stock track using ladder type sleeper, its construction method and sleeper regulating tool used therefor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To further shorten a construction period; and to reduce cost by surely regulating a position of a ladder type sleeper. <P>SOLUTION: This ladder type sleeper 100 has a pair of left-right longitudinal beams 101 for supporting a rail 200 by an upper surface, and a cross beam 102 for connecting the mutual longitudinal beams 101, and is laid on a concrete roadbed 400. The rail 200 is laid on the longitudinal beams 101 of the ladder type sleeper 100. Metallic sleeper regulating tools 1 and 3 are fixed to the concrete roadbed 400. The ladder type sleeper 100 is positionally regulated in a prescribed position by the sleeper regulating tools 1 and 3. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a vehicle track using a ladder-type sleeper, a construction method thereof, and a sleeper restricting tool used therefor.

  A conventional vehicle track is generally a ballast track that intermittently supports rails with sleepers by placing sleepers oriented at right intervals on the ballast roadbed at a predetermined interval. Since the structure is such that the rail is intermittently supported by points of sleepers, there is a problem that the track is likely to be out of order, and in recent years, a track using a ladder type sleeper has also been developed (see Patent Document 1 below) ).

  The ladder sleeper 100 includes a pair of left and right vertical beams 101 that respectively support the left and right rails 200 on the upper surface thereof, and a longitudinal direction of the vertical beam 101 between the vertical beams 101 so as to maintain a separation distance between the vertical beams 101. And a horizontal beam 102 that connects the vertical beams 101 at predetermined intervals, and is configured as a ladder as a whole (see FIG. 17). Ladder type sleepers are installed sequentially along the rails with the vertical beams facing each other. Unlike conventional horizontal sleepers, the ladder type sleepers continuously support vertical loads, so the weight of the vehicle has a specific weight. It has the advantages that it does not take place, is less likely to cause a trajectory error, and has low noise and vibration.

  In addition to the ballast / ladder track using ballast, the ladder track using the ladder type sleeper includes a floating ladder track in which the ladder type sleeper is laid on a concrete roadbed without using the ballast. The floating ladder track is used on structures that are unlikely to sink over time, such as viaducts and subways, and one of them is a vibration isolator type.

  As shown in FIG. 17, the vibration-damping type floating ladder track is formed by projecting a pedestal concrete 300 having a substantially L-shaped cross-sectional view on a concrete roadbed 400 continuously along the rail 200 as a pair of left and right. A ladder type sleeper 100 is laid on the pedestal concrete 300 via a vibration isolator 150 made of rubber, polyurethane or the like. In other words, the concrete roadbed 400 having the pedestal concrete 300 is formed, and the ladder sleeper 100 is laid on the pedestal concrete 300 of the concrete roadbed 400. Anti-vibration materials 150 are interposed between the vertical beam 101 of the ladder type sleeper 100 and the pedestal concrete 300 at predetermined intervals. Therefore, the ladder type sleeper 100 is in a state of floating from the pedestal concrete 300.

  The ladder sleeper 100 receives a force in the rail orthogonal direction and a force in the rail extending direction from the rail 200, and the vertical wall portion 301 of the pedestal concrete 300 receives the force in the rail orthogonal direction. That is, the position of the ladder type sleeper 100 in the rail orthogonal direction is regulated by the vertical wall portion 301. In addition, the vibration-proof material 151 is interposed also between the vertical wall part 301 and the vertical beam 101 for every predetermined space | interval.

  Further, in the case of the vibration-damping material type floating ladder track, both vertical beams 101 of the ladder type sleeper 100 are provided with positioning projections 103 protruding sideways, while the vertical wall portion 301 of the pedestal concrete 300 is provided on the vertical wall portion 301. A notch 302 is provided corresponding to the positioning protrusion 103, and the positioning protrusion 103 is engaged with the notch 302 via a vibration isolator 152. Accordingly, the force in the rail extending direction acting on the ladder sleeper from the rail 200 is also transmitted to the vertical wall portion 301 through the positioning projection 103, and the vertical wall portion 301 also causes the displacement of the ladder sleeper 100 in the rail extending direction. Is prevented.

JP-A-9-268504

  However, in the above-described vibration-damping material type floating ladder track, a concrete roadbed in which the base concrete 300 is continuously projected along the rail extending direction is required. In particular, in order to reliably receive the force acting from the rail 200 over a long period of time, the vertical wall portion 301 must be continuously formed in the rail extending direction in terms of strength. The pedestal concrete 300 is placed on the site by forming a formwork. However, forming the pedestal concrete 300 continuously in the rail extending direction has a heavy work load, and further shortening of construction period and cost reduction are required. It was done.

  Therefore, the present invention has been made in view of the above-described conventional problems, and an object thereof is to reliably regulate the position of the ladder type sleeper and further shorten the work period and reduce the cost.

  The present invention has been made to solve the above problems, and a vehicle track using the ladder type sleeper according to the present invention connects a pair of left and right vertical beams that support the rail on the upper surface thereof and the vertical beams. A ladder-type sleeper having a horizontal beam that is laid on a concrete roadbed, and a rail for a ladder-type vertical sleeper, wherein a metal sleeper restrictor is fixed to the concrete roadbed, and the sleeper The ladder-type sleeper is restricted to a predetermined position by a restricting tool.

  In the vehicle track having such a configuration, the sleeper restriction tool for restricting the position of the ladder-type sleeper at a predetermined position is fixed to the concrete roadbed, so that a conventional pedestal concrete having an L-shaped cross section is not required. . Since the sleeper regulating tool is made of metal, it is possible to reliably receive the force acting on the ladder-type sleeper from the rail and position the ladder-type sleeper at a predetermined position over a long period of time.

  In particular, as a sleeper control tool, a lateral control tool having a horizontal control part that controls the outer or inner surface of the vertical beam in the direction perpendicular to the rail, and a portion extending laterally from the vertical beam in the rail extending direction. It is preferable to include a vertical direction restricting tool having a vertical restricting portion for restricting. In this case, the force in the rail orthogonal direction that acts on the ladder type sleeper from the rail is received by the horizontal restricting portion of the horizontal restricting tool, and the force in the rail extending direction is received by the vertical restricting portion of the vertical restricting tool. That is, the position of the ladder type sleeper can be reliably regulated in two directions.

  Moreover, it is preferable that a vibration isolating material is interposed between the lateral regulating portion and the longitudinal regulating portion and the ladder type sleeper, respectively. In this case, vibrations in the two directions of the ladder type sleeper and thus the rail are absorbed by the interposed vibration damping material, which is also effective as a noise countermeasure.

  Moreover, it is preferable that the horizontal direction control tool is arrange | positioned at intervals in the rail extension direction. Since the lateral direction restricting tool is made of metal, it can be miniaturized. On the other hand, the position of the ladder sleeper can be more reliably regulated at a plurality of locations by arranging the lateral direction restricting elements at intervals in the rail extending direction.

  In addition, it is preferable that a positioning projection that protrudes laterally is formed on the vertical beam, and that the vertical restricting portion restricts the positioning protrusion, or the vertical restricting portion restricts the horizontal beam.

  Furthermore, it is preferable that the sleeper restricting tool is fixed by the anchor portion being embedded in the concrete roadbed. There are various methods for fixing sleeper control devices, for example, it is possible to fix to concrete roadbeds with bolts, etc., but by providing an anchor portion on sleeper control devices and embedding the anchor portion in the concrete roadbed for fixing It is easy to fix, and can be firmly fixed to the concrete roadbed, and it has excellent durability for long-term use and no need for maintenance such as tightening bolts. There is.

  Moreover, it is preferable that a horizontal direction control tool has a support part and a vertical beam is mounted in this support part via the vibration isolator. When the vertical beam is supported by the vibration isolator on the support portion, vertical vibration and noise are absorbed by the anti-vibration material. In addition, the force in the direction perpendicular to the rail acting on the ladder sleeper via the rail is usually larger than the direction in which the rail extends, but while supporting the vertical beam with the support by providing a support in the lateral restrictor By receiving the force in the rail orthogonal direction at the lateral restricting portion, it is possible to reliably receive a large force in the rail orthogonal direction. That is, the lateral restricting tool is prevented from coming off from the concrete roadbed or lifted, and the force in the rail orthogonal direction can be reliably received by the lateral restricting portion.

  In particular, the anti-vibration material interposed between the support part and the longitudinal beam can be fixed to the support part or the longitudinal beam, for example. However, if wear or sag occurs due to use, replacement is necessary. Since it also occurs, it is preferable to be placed on the support portion without being fixed to them. When the vibration isolator is mounted on the support portion without being fixed in this way, the vibration isolator is prevented from being displaced in the horizontal direction from the support portion due to vibration transmitted from the rail. In order to achieve this, it is preferable to project a flange upward at the peripheral edge of the support portion.

  Moreover, it is preferable that a horizontal control part controls the part of the outer surface of the vertical beam corresponding to the part connected by the horizontal beam. As described above, a large force in the direction perpendicular to the rail acts from the vertical beam to the horizontal restricting portion, but by restricting the place connected by the horizontal beam, the force is accurately received, and deformation and fatigue of the ladder type sleeper Can be suppressed.

  In that case, in particular, it is preferable that lateral restriction portions for restricting the outer surface of the vertical beam are respectively disposed so as to sandwich the ladder type sleeper on the left and right outer sides of the portion where the horizontal beam in the ladder type sleeper is connected. By restricting the ladder type sleeper to be sandwiched from the left and right by the left and right lateral restriction portions, the position can be more reliably restricted, and deformation, fatigue, and the like are also suppressed. In this case, it is possible to provide one lateral restriction part on one lateral restriction tool and arrange the lateral restriction parts on the left and right respectively. However, for example, a pair of lateral restriction parts is provided on one lateral restriction tool. It is also possible to regulate the outer side surfaces of both vertical beams by the pair of lateral regulating portions.

  The vehicle track construction method according to the present invention is a vehicle track construction method in which the position of the ladder type sleeper is regulated by a metal sleeper regulating tool, and the sleeper regulating tool is attached to the ladder type sleeper, The ladder type sleeper with the sleeper regulating tool is transported to a predetermined location on the concrete roadbed, and the sleeper regulating tool is fixed to the concrete roadbed.

  When constructing a track for a vehicle using a sleeper control tool, it is possible to first fix the sleeper control tool at a predetermined position on the concrete roadbed and install a ladder-type sleeper at that position. It is preferable to use a ladder type sleeper with a restricting tool. That is, a sleeper restrictor can be attached to the ladder type sleeper in advance at a place different from a concrete roadbed such as a factory, and a large number of ladder type sleepers with such a sleeper restrictor are prepared. Then, if the prepared ladder type sleeper is transported to a predetermined place on the concrete roadbed at the time of construction, installation work at the site is eliminated and the construction period can be shortened. In addition, the positional relationship of the sleeper restricting tool with respect to the ladder-type sleeper is also accurate, so that the position restriction of the ladder-type sleeper is also accurate.

  Further, the vehicle track construction method according to the present invention is a vehicle track construction method in which a vibration isolator is interposed between the ladder type sleeper and the lateral regulating portion and the longitudinal regulating portion, respectively. The vibration control material is interposed between the sleeper and the horizontal restriction part and the vertical restriction part to attach the horizontal restriction tool and the vertical restriction tool to the ladder type sleeper, and the ladder type sleeper with the sleeper control tool is attached to the concrete roadbed. It is transported to a predetermined location and installed, and the sleeper regulating tool is fixed to the concrete roadbed.

  In this method, when the lateral direction regulating tool and the longitudinal direction regulating tool are attached to the ladder type sleeper, a vibration damping material is interposed between the lateral regulating part and the ladder type sleeper and between the vertical regulating part and the ladder type sleeper, respectively. Let it attach. Then, the ladder type sleeper to which the sleeper regulating tool and the vibration isolating material are attached is carried to a predetermined location on the concrete roadbed. That is, after installing a ladder type sleeper with a sleeper control tool, or after fixing a sleeper control tool to a concrete roadbed, between a lateral control part and a ladder type sleeper, or between a vertical control part and a ladder type sleeper. It is also possible to interpose a vibration isolator, but the ladder type sleeper is also a heavy object, and it is not easy to interpose an easily deformable vibration isolator. Therefore, by installing a vibration isolator when attaching the horizontal direction restrictor or the vertical direction restrictor to the ladder type sleeper, the work load at the site is greatly reduced and the vibration isolator is accurate. Therefore, the anti-vibration function is surely exhibited.

  Also, the vehicle track construction method according to the present invention is the construction of a vehicle track having a configuration in which the lateral direction restricting tool has a support portion, and the vertical beam is placed on the support portion via a vibration isolator. A method of attaching a lateral direction regulating tool and a longitudinal direction regulating tool to a ladder type sleeper and attaching the lateral direction regulating tool with a vibration isolating material interposed between the vertical beam and the support portion, and with the sleeper regulating tool. The ladder type sleeper is transported to a predetermined location on the concrete roadbed and installed, and the sleeper regulating tool is fixed to the concrete roadbed.

  In this method, when the lateral direction regulating tool is attached to the ladder type sleeper, a vibration isolating material is interposed between the support portion and the vertical beam. For example, it is possible to mount a vibration damping material on the support portion after fixing the lateral direction regulating tool on the concrete roadbed, and then place a ladder-type sleeper on it, but the work on site increases. For this reason, a sleeper restricting tool is attached in advance to the ladder-type sleeper, but the work load at the site is reduced by additionally providing a vibration isolating material at the time of the attachment.

  Further, in these construction methods, the horizontal direction restricting tool and the vertical direction restricting tool are temporarily fixed to the ladder type sleeper by the temporary fixing member, and the temporary fixing member is fixed after the horizontal direction restricting tool and the vertical direction restricting tool are fixed to the concrete roadbed. It is preferable to remove the temporarily fixed state. The temporary fixing state can be easily released by temporarily setting the sleeper regulating tool. And, by releasing the temporarily fixed state after fixing to the concrete roadbed, the unity of the sleeper control tool and the ladder type sleeper is released and the two are separated. In addition, the vibration of the ladder-type sleeper is effectively absorbed by the vibration isolator.

  Further, the vehicle track construction method according to the present invention is a vehicle track construction method in which the sleeper restrictor is fixed to the concrete roadbed by the anchor portion of the sleeper restrictor being embedded in the concrete roadbed, The concrete is characterized in that the anchor portion of the sleeper restricting tool is buried and fixed by placing concrete further at a predetermined location of the existing concrete roadbed.

  In this method, since the anchor portion is buried by placing concrete further on the concrete roadbed as the base, concrete may be partially placed only at the place where the sleeper restrictor is disposed. Requires less formwork.

  Further, the sleeper control device for the ladder type sleeper according to the present invention, when laying a ladder type sleeper having a pair of left and right vertical beams supporting the rail on its upper surface and a horizontal beam connecting the vertical beams on a concrete roadbed. A metal sleeper restricting tool fixed to a concrete roadbed and restricting the position of a ladder type sleeper, comprising an anchor portion embedded in the concrete roadbed.

  In this configuration, because it is made of metal, the position of the ladder type sleeper can be reliably controlled even with a small size, and since it is fixed to the concrete roadbed by the anchor part, it is firmly integrated with the concrete roadbed to ensure the ladder type sleeper. The position can be restricted.

  As described above, since it is not necessary to continuously place pedestal concrete having an L-shaped cross-section in the field along the rail extending direction, it is possible to shorten the construction period and reduce the cost. .

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 shows a plan view of a part of a vehicle track using the ladder sleeper according to the present embodiment, and FIG. 2 shows a cross-section taken along the line AA. A floating ladder track using a vibrating material, a concrete roadbed 400, a sleeper restricting tool disposed at a predetermined position on the concrete roadbed 400, and a rail extending direction and a rail orthogonal direction by the sleeper restricting tool. A ladder type sleeper 100 whose position is regulated in two directions and a rail 200 laid on the ladder type sleeper 100 are provided. The sleeper restricting tool includes a lateral restricting tool having a lateral restricting portion that restricts the outer side surface 101a or the inner side surface 101b of the vertical beam 101 of the ladder type sleeper 100 in the rail orthogonal direction, and is extended laterally from the vertical beam 101. It is comprised from the vertical direction control tool which has a vertical control part which controls a site | part to the rail extension direction.
The rail extending direction is a direction along the rail 200, and the rail orthogonal direction is a direction orthogonal to the rail extending direction.

  The ladder-type sleeper 100 has a ladder shape as a whole, and has a pair of left and right vertical beams 101 that are parallel to each other and have a predetermined length (for example, several m to several tens of m) in the rail extending direction. And a cross beam 102 extending in the rail orthogonal direction. A plurality of horizontal beams 102 are provided between the vertical beams 101 and provided at predetermined intervals along the rail extending direction, that is, the longitudinal direction of the vertical beams 101. In this embodiment, a total of three horizontal beams 102 are provided. These horizontal beams 102 are rigidly integrated with the vertical beam 101. The horizontal beam 102 keeps the distance between the vertical beams 101 constant.

  Specifically, the vertical beam 101 is a rectangle in cross-section, specifically, a horizontally long rectangle. The vertical beam 101 is made of reinforced concrete, more specifically, prestressed concrete. The cross beam 102 has a circular shape in cross section and is formed of a steel pipe such as a general carbon steel pipe, and both ends of the cross beam protrude into the left and right vertical beams 101 by a predetermined depth. The steel pipe is filled with concrete, and the vertical beam 101 and the horizontal beam 102 are integrated by the concrete. However, the structure which does not fill concrete may be sufficient. The horizontal beam 102 has a smaller diameter than the vertical dimension of the vertical beam 101 and is positioned above the lower surface of the vertical beam 101 by a predetermined height. The cross beam 102 is not limited to a circular shape in cross section, and may have a square shape in cross section, and the cross sectional shape is not limited.

  The rail 200 is supported by the ladder-type sleeper 100 configured as described above. That is, the rail 200 is attached to the upper surface of the vertical beam 101 by a known rail fixture 201. Therefore, the rail 200 and the ladder-type sleeper 100 are integrated and are also referred to as a composite rail.

  On the other hand, cradles 1 and 2 made of cast iron and a stopper 3 are fixed at predetermined positions of the concrete roadbed 400. A concrete base 400a is partially projected at a predetermined position of the concrete roadbed 400, and the cradle 1, 2 and the stopper 3 are fixed to the upper surface of the concrete base 400a. The concrete platform 400a is formed by further partially placing concrete on an existing substantially flat concrete roadbed 400 serving as a base. 2 and the anchor portions of the stopper 3 are embedded, so that the cradle 1, 2 and the stopper 3 are fixed to the concrete roadbed 400. Note that the protruding amount of the concrete platform 400a varies depending on the installation location of the ladder type sleeper 100, and, for example, the protruding amount on the inner side is made lower than that on the outer side at a curved location. Therefore, it is not always necessary to project all of them. Where the inner side must be particularly low, conversely, a part of the existing concrete roadbed 400 is recessed, and the cradle 1, 2, etc. are inserted into the recess. Concrete may be cast.

  The cradle 1, 2 is a support member that supports the ladder-type sleeper 100 via the vibration isolator 150, and more specifically, a plurality of vertical beams 101 are spaced apart in the longitudinal direction (rail extending direction). It is to support at the place. The cradle 1, 2 has a first cradle 1 (lateral direction restricting tool) having a lateral restriction part that restricts the longitudinal beam 101 and thus the ladder type sleeper 100 in the rail orthogonal direction, and a first part that does not have the lateral restriction part. There is a second cradle 2. As shown in FIG. 1, five cradles 1 and 2 are provided for each longitudinal beam 101, and the ladder type sleeper 100 is entirely supported by ten cradles 1 and 2 in total. The first cradle 1 and the second cradle 2 are alternately arranged along the longitudinal direction of each vertical beam 101. Further, in relation to the horizontal beam 102, the first cradle 1 is provided at the position of the horizontal beam 102. This is because when the vertical beam 101 is regulated in the direction perpendicular to the rail by the horizontal regulating part of the first cradle 1, both vertical beams 101 are connected by the horizontal beam 102 to regulate a portion having high strength. And the 2nd receiving stand 2 is located between the two horizontal beams 102 arranged in parallel, and is specifically distribute | arranged to the intermediate point between them. Hereinafter, the first and second cradle 1 and 2 will be described in detail.

  The first cradle 1 is shown in FIGS. 3 and 4, and is rectangular in plan view as shown in FIG. 3 (a), specifically, a rectangle that is long in the short direction of the vertical beam 101 (rail orthogonal direction). It is. The cradle 1 has a support base 9 (support part) that supports the vertical beam 101 over its entire length in the short direction on its upper surface 1a, and stands on the one end of the support base 9 over its entire width. The guide wall 10 serving as a lateral regulating portion is formed in a substantially L shape as a whole. The inner surface 10a of the guide wall 10 is substantially orthogonal to the upper surface 1a of the support base 9, and the inner surface 10a regulates the outer surface 101a of the vertical beam 101. The height of the guide wall 10 is substantially equal to the upper surface of the vertical beam 101. In addition, on the outer surface of the guide wall 10, ribs 11 extending in the vertical direction are provided at a plurality of locations as shown in FIGS. 3 (b) and 4 (b). A total of five ribs 11 are provided at predetermined intervals. The ribs at the center and at both ends have a larger amount of outward projection than the others.

  Further, a vibration isolating material 151 made of polyurethane, rubber or the like is interposed between the inner surface 10a of the guide wall 10 and the outer surface 101a of the vertical beam 101. The vibration isolator 151 is a plate having a substantially uniform thickness and is formed in a rectangular shape. Although vibration and impact in the direction perpendicular to the rail of the ladder type sleeper 100 are absorbed by the vibration isolator 151, a device for preventing the displacement of the vibration isolator 151 is provided. That is, flanges 12 extending in the vertical direction toward the inside are projected from the left and right ends (both ends in the rail extending direction) of the inner surface 10a of the guide wall 10, and the rails of the vibration-proof material 151 are projected by both flanges 12. Misalignment in the extending direction is prevented. The protruding amount of the flange 12 is smaller than the thickness of the vibration isolator 151. Further, a stopper 13 is attached to the guide wall 10 to prevent the vibration isolator 151 from being displaced upward. The retainer 13 is made of, for example, a sheet metal, and is formed in a substantially inverted L shape as shown in an enlarged view of FIG. 7, and presses the upper end surface 151 a of the vibration isolator 151 with the short side 13 a. At the same time, a hook convex portion 13c is formed at the tip of the long side 13b extending downward from the short side 13a, and the hook convex portion 13c engages with the concave portion 14 of the inner surface 10a of the guide wall 10 to prevent it from coming off. Thus, the upward displacement of the vibration isolator 151 is prevented. Two retaining tools 13 are provided.

  Further, a plate-like vibration isolator 150 is placed on the upper surface 1 a of the support base 9, and the support base 9 of the cradle 1 supports the lower surface of the vertical beam 101 via the vibration isolator 150. The material 150 absorbs vibrations and noises in the vertical direction. The vibration isolator 150 is also made of polyurethane, rubber or the like. In order to prevent the horizontal displacement of the vibration isolator 150, flanges 15 and 16 are provided on the three peripheral sides of the upper surface 1a of the support base 9 other than the guide wall 10 so as to project upward. The flanges 15 at both ends in the rail extending direction extend in the rail orthogonal direction from the end opposite to the guide wall 10 to the middle toward the guide wall 10 side. Further, the flanges 16 positioned on the opposite side of the guide wall 10 extend in the rail extending direction, but are provided at two positions on both sides with a space therebetween. The protruding amount of the flanges 15 and 16 is also smaller than the thickness of the vibration isolator 150.

  On the other hand, the cradle 1 has an anchor portion embedded in the concrete roadbed 400, and the anchor portion is provided on the lower surface 1 b of the support base 9. Specifically, rib-like protrusions 17 and 18 extending in the rail orthogonal direction (the transverse direction of the vertical beam 101) are provided on one end of the lower surface 1b of the support base 9, that is, on the guide wall 10 side. The rib-like protrusions 17 and 18 are a first rib-like protrusion 17 located approximately in the center of the rail extending direction, and a total of four second protrusions provided on both sides of the first rib-like protrusion 17. It consists of two rib-like projections 18. As shown in FIG. 4B, these rib-like protrusions 17 and 18 are provided at predetermined intervals, but their positions are the same as those of the rib 11 of the guide wall 10 described above. Further, the second rib-shaped protrusion 18 has a smaller protrusion than the first rib-shaped protrusion 17. The rib-shaped protrusions 17 and 18 are formed halfway from one end portion on the guide wall 10 side of the cradle 1 toward the other end portion, and the end portion thereof is substantially the same as the end portion of the flange 15 on the upper surface 1a. . Further, two insertion holes 19 are formed in the second rib-shaped protrusion 17 so as to penetrate in the rail extending direction. One location is located directly below the inner surface 10a of the guide wall 10 and the other location is located on the opposite side of the guide wall 10 from that location. A small projection 20 having one insertion hole 19 is also formed at the end of the lower surface 1 b of the support base 9 opposite to the guide wall 10. As described above, the small protrusion 20 and the rib-shaped protrusions 17 and 18 constitute an anchor portion.

  As described above, the cradle 1 is fixed and integrated with the concrete roadbed 400 by embedding the anchor portion in the concrete bed 400a when the concrete bed 400a is projected on the concrete roadbed 400. Therefore, the anchor reinforcing bars 21 are inserted into the insertion holes 19 respectively formed in the first rib-like protrusion 17 and the small protrusion 20. Specifically, as shown in FIG. 8, the anchor reinforcing bar 21 is formed in a lattice shape as a whole from a reinforcing bar 21 a in the rail extending direction and a reinforcing bar 21 b in the rail orthogonal direction. Of these, three in the rail extending direction are inserted into the insertion hole 19. In addition, each rebar 21a, 21b is welded and integrated at the mutual intersection. Further, the reinforcing bar 21b in the rail orthogonal direction extends to the outside of the guide wall 10, and the extending part is also provided with a reinforcing bar 21a in the rail extending direction. Furthermore, the reinforcing bars 21b in the direction perpendicular to the rails are also provided on both outer sides of the cradle 1 in the rail extending direction. Therefore, the grid-like anchoring reinforcing bars 21 are formed in the cradle 1 as shown in FIG. The cradle 1 is configured so as to have a larger area in plan view than the cradle 1. In addition, the reinforcing bar 21b in the rail orthogonal direction is fixed to the upper side of the reinforcing bar 21a in the rail extending direction.

  As described above, the first cradle 1 configured as described above is provided in a pair of left and right at the location where the cross beam 102 is disposed, but the pair of left and right first cradles 1 have guide walls 10 that are vertically arranged. It arrange | positions so that it may become the outer side of the beam 101. FIG. That is, the pair of left and right cradle 1 are arranged so that the inner surfaces 10a of the respective guide walls 10 face each other, respectively regulate the outer side surface 101a of the vertical beam 101, and both the vertical beams 101 are arranged at the positions where the horizontal beams 102 are disposed. It is arranged so as to be sandwiched from the direction. Therefore, the horizontal beam 102 functions as a tension bar, so that deformation, breakage, and the like of the vertical beam 101 and the ladder sleeper 100 when the guide wall 10 of the first cradle 1 regulates the vertical beam 101 can be prevented. In addition, you may arrange | position other than the arrangement | positioning location of the horizontal beam 102, and the structure which the inner wall 101b of the vertical beam 101 is regulated may be sufficient as the guide wall 10 being located inside the vertical beam 101.

  Next, the second cradle 2 will be described, but the description of the parts common to the first cradle 1 will be omitted. That is, as shown in FIG. 5, the structure of the second cradle 2 on the side of the guide wall 10 is different from that of the first cradle 1 and the structure on the opposite side is the same. The second cradle 2 does not have the guide wall 10 and therefore has only the function of the support base 9 of the first cradle 1. In other words, the vertical beam 101 is only supported via the vibration isolator 150, but instead of the guide wall 10, a flange 22 extending in the rail extending direction is also provided on the one end of the upper surface 2a of the cradle 2. ing. Accordingly, flanges 15, 16, and 22 are provided on four sides of the upper surface 2 a of the cradle 2, and the vibration isolator 150 is placed on the inside thereof. The flange 15 extending in the rail orthogonal direction is formed over substantially the entire length of the vibration isolator 150 except for the center.

  Further, only a pair of the small protrusions 20 are provided on the lower surface 2b of the cradle 2 and no rib-like protrusions are provided. Therefore, an anchor part is comprised from both the small protrusions 20, and the reinforcing bar 21 for anchor mentioned above is provided similarly.

  Next, the stopper 3 will be described. The stopper 3 is a longitudinal direction restricting tool for preventing the displacement of the ladder type sleeper 100 in the rail extending direction. Specifically, it has a vertical restricting portion that restricts the positioning protrusion 103 formed on the vertical beam 101 of the ladder sleeper 100 in the rail extending direction.

  Specifically, as shown in FIG. 6, the stopper 3 has guide walls 10 similar to the guide walls 10 of the first cradle 1 at both ends as vertical restricting portions, respectively. It is formed in a shape. Both guide walls 10 are erected so that the inner surfaces 10a face each other, and restrict both side surfaces of the positioning protrusion 103 in the rail extending direction. As shown in FIG. 1, only the positioning projection 103 on one longitudinal beam 101 is restricted by the stopper 3, but the stopper 3 may be provided on the other positioning projection 103.

  Further, the structure of the guide wall 10 of the stopper 3 is the same as that of the first cradle 1 and will not be described. However, a vibration isolator is provided between the inner surface 10a of each guide wall 10 and the positioning projection 103. The same is true in that 152 is provided, and each vibration isolator 152 is prevented from coming off upward by the retainer 13. The stopper 3 does not support the lower surface 103b of the positioning protrusion 103. Therefore, the upper surface 3 a of the stopper 3 is spaced downward from the lower surface 103 b of the positioning protrusion 103.

  Further, rib-like projections 17 and 18 are provided on the lower surface 3 b of the stopper 3, and, like the first cradle 1, it projects relatively to the first rib-like projection 17 having a relatively large projection amount. The second rib-shaped projection 18 having a small amount is included, and the rib-shaped projections 17 and 18 constitute an anchor portion. However, since the guide walls 10 are provided at both ends, the rib-like projections 17 and 18 are formed over the entire length from one end to the other end. Accordingly, a total of four insertion holes 19 are provided in the first rib-like protrusion 17, and a lattice-like anchor reinforcing bar 21 is provided below similarly to the first cradle 1.

  As described above, a plurality of pedestals 1 and 2 are arranged and fixed at intervals in the rail extending direction on the concrete roadbed 400, and the ladder type sleeper 100 is vibration-proofed by the plurality of pedestals 1 and 2. It is supported via a material 150. Further, the guide wall 10 of the first cradle 1 and the guide walls 10 of the stopper 3 position the ladder type sleeper 100 in the two directions of the rail orthogonal direction and the rail extending direction. Therefore, the ladder-type sleeper 100 is securely held at the laying position. In addition, vibrations in the vertical direction, the rail extension direction, and the rail orthogonal direction are absorbed by the vibration isolating materials 150, 151, and 152, and an excellent effect in noise countermeasures is exhibited.

  Since the cradles 1 and 2 and the stopper 3 are firmly fixed to the concrete roadbed 400 (concrete base 400a) by the respective anchor portions and the anchor reinforcing bars 21 connected thereto, the ladder can be used even after long-term use. The mold sleeper 100 can be stably supported and can be prevented from being displaced. In particular, since it is made of cast iron, it is excellent in vibration absorption as compared with steel materials, and it has high rigidity because complex shapes such as the guide wall 10, rib-like protrusions 17, 18 and small protrusions 19 can be integrally formed. The manufacturing is easy and the cost can be reduced. In particular, the first cradle 1 is made of cast iron, and the support base 9 that supports the longitudinal beam 101 and the guide wall 10 that regulates the position in the direction perpendicular to the rail are not separate parts but are integrally molded. The guide base 10 can reliably receive a large force in the rail orthogonal direction while supporting the gravity of the ladder type sleeper 100 with the support base 9. Further, the cradle 1 and the stopper 3 and the stopper 3 are integrated with the concrete roadbed 400, but are not connected and integrated with the ladder type sleeper 100, so that they are transmitted from the rail 200 to the ladder type sleeper 100. Vibration is efficiently absorbed and alleviated by the vibration isolator 150, 151, 152.

  Next, a method for constructing a vehicle track including a method for laying the ladder sleeper 100 will be described. First, the anchor reinforcing bars 21 are attached to the cradles 1 and 2 and the stopper 3, respectively. Then, the cradle 1, 2 and the stopper 3 are attached to a predetermined position of the ladder type sleeper 100.

In the member having the guide wall 10, that is, in the first cradle 1 and the stopper 3, the guide wall 10 is fixed to the ladder type sleeper 100. In the case of the stopper 3, as shown in FIG. 6, both guide walls 10 are fastened to the positioning projections 103 by temporary fixing bolts 30 (four places in total) indicated by two-dot chain lines. At this time, a vibration isolator 152 is interposed between each guide wall 10 and the positioning projection 103. The temporary fixing bolt 30 penetrates the vibration isolating material 151.
Further, in the case of the first cradle 1, the guide wall 10 and the vertical beam 101 are connected to each other with temporary fixing bolts 30 (two places) as shown by two-dot chain lines in FIGS. 3 (b) and 4 (b). Conclude. In this case as well, a vibration isolator 151 is interposed between the guide wall 10 and the vertical beam 101.
Further, in the case of the first cradle 1, suspension plates 31 (two places) as suspension members are fastened with temporary fixing bolts 30 as shown by a two-dot chain line on the inner surface 101 b of the vertical beam 101. Then, the tip (lower end) of the suspension plate 31 is hooked on the recess 33 formed in the flange 16 of the upper surface 1 a of the first cradle 1, whereby the cradle 1 is moved through the suspension plate 31 to the vertical beam. 101 is attached in a suspended manner. At that time, a vibration isolator 150 is interposed between the upper surface 1 a and the vertical beam 101.

  On the other hand, in the case of the second cradle 2 that does not have the guide wall 10, the suspension plates 31 are temporarily attached to both the outer side surface 101a and the inner side surface 101b of the vertical beam 101 as shown by a two-dot chain line in FIG. The second cradle 2 is attached in a suspended manner to the lower side of the vertical beam 101 by attaching with the fixing bolt 30. In this case as well, the vibration isolator 150 is similarly interposed. In this embodiment, the temporary fixing bolt 30 and the suspension plate 31 constitute a temporary fixing member, but the temporary fixing member is not limited to this.

As described above, the receiving bases 1 and 2 and the stopper 3 are temporarily fixed at predetermined positions of the ladder type sleeper 100 using the temporary fixing bolt 30 and the suspension plate 31, and the receiving bases 1 and 2 and the stopper 3 are fixed. In addition, a large number of ladder-type sleepers 100 to which the vibration damping materials 150, 151, and 152 are attached are prepared as one unit. And in the case of construction, the unit is conveyed to the predetermined location of the concrete roadbed 400, and it arranges sequentially along a rail extension direction. In other words, this temporary fixing operation can be performed not at the site but at a factory or the like.
The existing base portion of the concrete roadbed 400 is substantially flat, and a simple formwork is set in advance at a predetermined position before the unit is transported. That is, in order to project the concrete base 400a only at the place where the cradles 1 and 2 and the stopper 3 are fixed, a mold is installed only at that portion. Then, a unit is installed at that location, and concrete is placed in the formwork to project the concrete base 400a. At that time, the anchors 1, 2 and the anchor 3 of the stopper 3 are embedded in the concrete base 400a. To do. The upper surface of the concrete base 400a is made to substantially coincide with the lower surfaces 1b, 2b, 3b of the cradles 1, 2 and the stopper 3. Therefore, when installing the ladder type sleeper 100 with the sleeper regulating tool at a predetermined position, for example, it is preferable to place a height adjusting jig under the vertical beam 101 and perform leveling and height adjustment.
In this way, the cradle 1, 2 and the stopper 3 are fixed to the concrete roadbed 400 by forming the concrete pedestal 400a. After the concrete has hardened, the temporary fixing bolt 30 is removed, and the suspension plate 31 is also removed, and the ladder type sleeper 100, the cradle 1, 2 and the stopper 3 are separated. In addition, after pulling out the temporary fixing bolts 30 on the guide wall 10 of the first cradle 1 and the guide walls 10 of the stopper 3, a pin may be inserted instead. By inserting the pins, it is possible to prevent the ladder type sleeper 100 from largely separating upward from the cradle 1, 2 or the stopper 3 in the event of an earthquake.

  After the ladder-type sleeper 100 is laid as described above, the rail 200 is laid thereon to complete the vehicle track.

  In this embodiment, the ladder type sleeper 100 is laid on the concrete roadbed 400 using the cradle 1, 2 and the stopper 3, so that the pedestal concrete having an L-shaped cross-sectional view as in the past is placed in the rail extending direction. Therefore, it is not necessary to continuously cast along the concrete base, and only the partial concrete platform 400a is placed. Therefore, the formwork on site can be greatly reduced, and the construction period can be shortened and the cost can be reduced. In addition, since the cradle 1, 2 and the like are not fixed by bolts or the like but are fixed to the concrete roadbed 400 by placing concrete, the cradle 1, 2 etc. are firmly integrated with the concrete roadbed 400, and the bolts are tightened. Maintenance such as increase is also eliminated. In addition, if the cradle 100 and the stopper 3 are attached to the ladder type sleeper 100 in advance in a place such as a factory different from the construction place, the ladder type sleeper 100 is transported to the site, installed, and fixed to the concrete roadbed 400. The relative displacement between the ladder-type sleeper 100 and the cradle 1, 2 or the stopper 3, in particular, the positional displacement between the first cradle 1 and the stopper 3 that regulates the position of the ladder-type sleeper 100 and the ladder-type sleeper 100. Therefore, the position of the ladder type sleeper 100 can be accurately regulated. In particular, when the sleeper restrictor is composed of a plurality of members such as a plurality of first cradle 1 and one stopper 3, the relative position between the members is also accurate. It is possible to fix these members individually on the concrete roadbed 400 separately from the ladder type sleeper 100 and place the ladder type sleeper 100 thereon, but in this case, the members are not accurately arranged at predetermined positions. The position of the ladder type sleeper 100 cannot be accurately regulated. On the other hand, by attaching the cradle 1, 2 and the stopper 3 to the ladder type sleeper 100 in advance, the positional deviation between the ladder type sleeper 100 and the cradle 1, 2, etc. is prevented, so that the installation work can be performed once. Since it can be installed, it is excellent in work efficiency. Further, since the cradle 1, 2 and the stopper 3 are only temporarily fixed to the ladder type sleeper 100, the temporarily fixed state is easily released after being fixed to the concrete roadbed 400, and the ladder type sleeper 100 and the pedestal are fixed. 1, 2 etc. can be separated. By separating the two in this way, the vibration transmitted from the rail 200 to the ladder sleeper 100 can be efficiently absorbed by the vibration isolator 150, 151, 152. In addition, it is difficult to interpose the vibration isolators 150, 151, and 152 after the ladder type sleeper 100 is laid. In particular, since the vibration isolators 150, 151, and 152 are plate-shaped and easily deformed, the ladder type sleepers are used. It is extremely impossible to interpose after installation of 100, but as described above, these anti-vibration materials 150, 151, 152 are also attached to the ladder type sleeper 100 together with the cradle 1, 2, etc. The work burden at the site is greatly reduced.

  Furthermore, since rib-shaped protrusions 17 and 18 are formed in the first cradle 1 and the stopper 3 which are members having the guide wall 10 along the respective restricting directions, the guide wall from the ladder type sleeper 100 is provided. In the case where a force is applied to 10, deformation of the cradle 1, 2 and the stopper 3 is prevented. In particular, the rib 11 provided on the guide wall 10 and the rib-like protrusions 17 and 18 on the lower surfaces 1b and 3b are formed on the same vertical surface as shown in FIG. 18 acts integrally to prevent deformation. In particular, in the case of the stopper 3, the guide walls 10 are provided at both ends, so the rib-like protrusions 17 and 18 are formed from one end to the other end of the lower surface 3 b, but the first cradle 1 In this case, since the guide wall 10 is provided only at one end portion, the rib-like protrusions 17 and 18 are formed only at one end portion side of the lower surface 1b. Therefore, particularly in the case of the first cradle 1, the deformation of the cradle 1 due to the force acting on the guide wall 10 is effectively suppressed while ensuring the fluidity of the concrete by minimizing protrusions from the lower surface 1 b. Can be suppressed.

  Further, in the first cradle 1 and the stopper 3, an insertion hole 19 for inserting the reinforcing bar 21 is formed immediately below the inner surface 10a of the guide wall 10, and the reinforcing bar 21 is provided so as to be orthogonal to the regulation direction. Deformation of the cradle 1 and the stopper 3 can be effectively suppressed by the reinforcing bars 21 immediately below the inner surface 10a of the guide wall 10.

  In the above embodiment, the positioning projection 103 is formed on the longitudinal beam 101 of the ladder sleeper 100 and the positioning projection 103 is regulated by the stopper 3 to prevent the positional deviation in the rail extending direction. 102 may be regulated by the stopper 3.

  That is, as shown in FIG. 9, both end portions of one transverse beam 102 are each regulated by the stopper 3. The two stoppers 3 have the same configuration, and both are configured to be regulated from the front and back in the rail extending direction of the cross beam 102. In this case, first, instead of directly regulating the outer peripheral surface of the cross beam 102 having a circular cross-sectional view with the guide wall 10 via the vibration isolator 152, the intermediate member 40 is attached to the cross beam 102 and the intermediate member 40 is interposed therebetween. The horizontal beam 102 is regulated. Since the cross beam 102 has a circular shape in cross section, if it is directly restricted by the inner surface 10a of the guide wall 10, it is restricted in terms of dots. Therefore, the intermediate member 40 only needs to have a vertical surface in the rail extending direction. For example, the intermediate member 40 is formed in a rectangular shape as shown in FIG. 10 and a through hole through which the cross beam 102 is inserted is formed in the center. Has been. The intermediate member 40 is also made of cast iron, for example. The intermediate member 40 may be attached to the cross beam 102 in advance and connected to the vertical beam 101 together with the cross beam 102. However, in this embodiment, the intermediate member 40 is attached to the horizontal beam 102 after being connected to the vertical beam 101. An intermediate member 40 is composed of a pair of split upper and lower sandwiching bodies 41, 42. A pair of upper and lower sandwiching bodies 41 and 42 are attached to the transverse beam 102 so as to sandwich the transverse beam 102 from both above and below, and the sandwiching bodies 41 and 42 are connected and integrated by a bolt 43. The stopper 3 itself has the same structure as that for restricting the positioning protrusion 103 as described above, and the anti-vibration material 152 is formed by sandwiching the intermediate member 40 from the front and rear in the rail extending direction between the guide walls 10. The vertical surface of the intermediate member 40 is regulated via The intermediate member 40 may be configured to hold the cross beam 102 in the horizontal direction with a pair of left and right holding members.

  Further, as shown by a two-dot chain line in FIG. 10, the stopper 3 can be temporarily fixed using a U-shaped hanging plate 32. That is, the horizontal portion of the U-shaped suspension plate 32 is positioned above the intermediate member 40, and both end portions facing downward of the suspension plate 32 are respectively attached to the guide walls by temporary fixing bolts 30. Thus, the suspension plate 32 surrounds the upper side of the intermediate member 40 and the stopper 3 surrounds the lower side. An adjustment bolt 44 is screwed into the horizontal portion of the suspension plate 31 so as to penetrate from the upper side to the lower side, and the tip of the adjustment bolt 44 is in contact with the upper surface 1 a of the intermediate member 40. Therefore, the relative position in the vertical direction of the intermediate member 40 with respect to the suspension plate 32 can be adjusted by turning the adjustment bolt 44. For example, when the adjustment bolt 44 is screwed downward, the tip of the adjustment bolt 44 pushes the intermediate member 40, thereby increasing the separation distance between the suspension plate 32 and the intermediate member 40, and as a result, the stopper 3 extends to the intermediate member 40. The cross beam 102 is pulled upward. Since the dimensional error is likely to occur when the intermediate member 40 is interposed in this way, the position of the lower surface 3b of the stopper 3 with respect to the cross beam 102 is accurately set to a predetermined height by having an upper and lower adjustment mechanism. The upper surface of the concrete roadbed 400 is substantially flush with the lower surface 3b of the stopper 3. Then, after the concrete roadbed 400 is formed, the temporary fixing bolt 30 is similarly removed to remove the suspension plate 32 to release the temporary fixed state.

  In the above description, a pair of guide walls 10 is provided on one stopper 3 and the positioning projection 103 and the cross beam 102 are clamped in the front and rear directions. The positioning protrusion 103 may be regulated by two or more stoppers 3. In addition, although the stopper 3 illustrated the positioning protrusion 103 and the cross beam 102 as a part extended from the vertical beam 101 to the side, the other structure may be sufficient.

  In addition, the configuration of the guide wall 10 and the configuration of the lateral regulating portion and the longitudinal regulating portion can be appropriately changed in design, and the anchor portion is not limited to one that projects directly from the lower surface.

  In addition, various changes can be made to the number of cradles 1 and 2 and the stopper 3 and their shapes.

  Furthermore, although the structure which fixes the bases 1 and 2 and the stopper 3 by embedding in the concrete roadbed 400 was demonstrated, as above-mentioned, the fixing method to the concrete roadbed 400 is not specifically limited, A base with a volt | bolt. Of course, it is also possible to fix 1, 2 and the stopper 3 to the concrete roadbed 400. This fixing method using bolts is preferable, especially when the ladder type sleeper 100 is installed on the existing concrete roadbed 400, and the above-described concrete platform 400a is not necessary.

  FIG. 11 shows an example of a vehicle track in which a ladder sleeper 100 is installed on an existing concrete roadbed 400 by fixing cradle 1, 2 and the like with bolts. The basic structures of the cradles 1 and 2 and the stopper 3 are not particularly changed, but are configured to be fixed to the existing concrete roadbed 400 with bolts 50.

  That is, the first cradle 1, the second cradle 2, and the stopper 3, as shown in FIGS. 12, 15, and 16, each have a total of four bolts on the upper surface of the existing flat concrete roadbed 400. Fixed at 50. Both the receiving bases 1 and 2 and the lower surfaces 1b, 2b and 3b of the stopper 3 are flat and are not provided with the anchor portion as described above. Specifically, as shown in FIG. 13, an insert 51 for screwing a bolt 50 is driven into a concrete roadbed 400, and the bolt 50 is screwed to the insert 51, so that a spring washer 52 and a plain washer 53 are interposed. The first cradle 1 is fixed. The bolt insertion hole 54 formed in the first cradle 1 or the like is larger than the diameter of the bolt 50, but by setting the bolt insertion hole 54 larger than the normal case, An error from the driving position of the insert 51 can be absorbed, and the work load is reduced. In that case, it is preferable to fill the gap by filling a filler 55 such as resin mortar (high strength resin mortar) between the bolt 50 and the wall surface of the bolt insertion hole 54, for example, by centrifugal force received from the vehicle after installation. The ladder-type sleeper 100 is prevented from being displaced by the gap.

  The second cradle 2 is thinner than the support base 9 of the first cradle 1. This is because, unlike the first cradle 1 and the stopper 3, the second cradle 2 is not subjected to horizontal force, and is thin in order to reduce the weight. Therefore, the level adjusting plate 60 is interposed between the second cradle 2 and the concrete roadbed 400.

  FIGS. 12, 15, and 16 show a state before the temporary fixing member for temporarily fixing the first cradle 1 and the like to the ladder sleeper 100 is removed. That is, as shown in FIG. 12, the first cradle 1 is temporarily fixed to the ladder type sleeper 100 by the temporary fixing bolts 30 and the hanging plate 34. The upper end is bent in the horizontal direction so as to face the upper surface of the vertical beam 101. A butterfly bolt 35 penetrates downward through the upper end of the suspension plate 34, and the tip (lower end) of the butterfly bolt 35 pushes the upper surface of the vertical beam 101 downward through the rubber plate 36. As shown in FIG. 15, the second cradle 2 is also suspended by a suspension plate 34 similar to that of the first cradle 1, but the upper end portion of the outer suspension plate 34 and the inner suspension plate 34 are suspended. Are connected to each other by a connecting plate 37 extending laterally above the vertical beam 101, and the butterfly bolt 35 penetrates the connecting plate 37 and presses the rubber plate 36 against the upper surface of the vertical beam 101. Further, as shown in FIG. 16, the stopper 3 is temporarily fixed with a total of four temporary fixing bolts 30. This is the same as in the case of FIG. In the case of the first cradle 1 shown in FIG. 12 and the case of the stopper 3 shown in FIG. 16, after the temporary fixing bolt 30 is removed, it is driven into the vertical beam 101 as shown in FIG. The insert screw 38 is screwed with a retaining screw 39 without a head, and the retaining screw 39 prevents the vibration isolating materials 151 and 152 from being displaced upward or removed. In that case, it is preferable to use a locking screw 39 that has been subjected to a locking process to prevent loosening.

The top view which shows the track | orbit for vehicles in one Embodiment of this invention. AA sectional drawing of FIG. The vicinity of the 1st cradle of the track for the vehicles is shown, (a) is a top view, (b) is a sectional view. The vicinity of the 1st cradle of the track for vehicles is shown, (A) is a side view which looked at a longitudinal beam from the inside, (B) is a side view which looked at a longitudinal beam from the outside. The 2nd cradle vicinity of the track for the vehicles is shown, (A) is a top view and (B) is a sectional view. The vicinity of the stopper of the track for vehicles is shown, (A) is a top view, (B) is a sectional view. Sectional drawing of the principal part of the track for the vehicles. The use state of the cradle used for the track | truck for the vehicles is shown, (A) is a top view, (B) is a front view. The top view which shows the track | orbit for vehicles in other embodiment. Sectional drawing which shows the stopper vicinity of the track for the vehicles. The top view which shows the track | orbit for vehicles in other embodiment. The vicinity of the 1st cradle of the track for the vehicles is shown, (a) is a top view, (b) is a sectional view. FIG. 13 is a detailed view of a T portion in FIG. The principal part enlarged view of the track for the vehicles. The 2nd cradle vicinity of the track for the vehicles is shown, (A) is a top view and (B) is a sectional view. The vicinity of the stopper of the track for vehicles is shown, (A) is a top view, (B) is a sectional view. The conventional vehicle track | orbit is shown, (A) is a top view, (B) is sectional drawing.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... 1st cradle (horizontal direction control tool), 2 ... 2nd cradle, 3 ... Stopper (vertical direction control tool), 9 ... Support base (support part), 10 ... Guide wall (lateral control part) , 11 ... ribs, 12, 15, 16, 22 ... flanges, 13 ... retaining devices, 14 ... recesses, 17 ... first rib-like projections, 18 ... second rib-like projections, 19 ... insertion holes, 20 ... Small protrusion, 21 ... Reinforcing bar, 30 ... Temporary fastening bolt (temporary fastening member), 31, 32, 34 ... Suspension plate (temporary fastening member), 33 ... Recess, 35 ... Butterfly bolt, 36 ... Rubber plate, 37 ... Connecting plate, 38 ... insert, 39 ... retaining screw, 40 ... intermediate member, 41, 42 ... clamping body, 43 ... bolt, 44 ... adjusting bolt, 100 ... ladder type sleeper, 50 ... bolt, 51 ... insert, 52 ... Spring washer, 53 ... Plain washer, 54 ... Bolt insertion hole, 5 ... Filler, 60 ... Level adjusting plate, 101 ... Longitudinal beam, 102 ... Cross beam, 103 ... Positioning protrusion, 150, 151, 152 ... Antivibration material, 200 ... Rail, 300 ... Base concrete, 400 ... Concrete roadbed, 400a ... Concrete stand

Claims (17)

A vehicle track in which a ladder sleeper having a pair of left and right vertical beams that support the rail on its upper surface and a horizontal beam that connects the vertical beams is laid on a concrete roadbed, and the rail is laid on the vertical beam of the ladder type sleeper Because
A track for a vehicle using a ladder sleeper, wherein a metal sleeper restricting tool is fixed to a concrete roadbed, and the ladder sleeper is restricted to a predetermined position by the sleeper restricting tool.   As a sleeper control tool, a horizontal control tool having a horizontal control part that controls the outer or inner surface of the vertical beam in the direction perpendicular to the rail, and a part extending laterally from the vertical beam is controlled in the rail extending direction. The track for vehicles using the ladder type sleeper according to claim 1, further comprising: a longitudinal restriction device having a longitudinal restriction portion.   The track for a vehicle using the ladder sleeper according to claim 2, wherein a vibration damping material is interposed between the lateral restriction portion, the vertical restriction portion, and the ladder sleeper.   The track for a vehicle using the ladder type sleeper according to claim 2, wherein the lateral restricting tools are arranged at intervals in the rail extending direction.   The track for a vehicle using a ladder type sleeper according to claim 2, wherein a positioning protrusion protruding laterally is formed on the vertical beam, and the vertical restricting portion restricts the positioning protrusion.   The vehicle track using the ladder-type sleeper according to claim 2, wherein the vertical restricting portion restricts a horizontal beam.   The sleeper regulating tool is a vehicle track using the ladder sleeper according to any one of claims 1 to 6, wherein the anchor portion is fixed by being embedded in a concrete roadbed.   The track for a vehicle using a ladder type sleeper according to claim 2, wherein the lateral restricting tool has a support portion, and a vertical beam is placed on the support portion via a vibration isolator.   9. A vehicle using a ladder sleeper according to claim 8, wherein the vibration isolator is placed on a support portion, and a flange is provided on the periphery of the support portion so as to prevent displacement of the vibration isolator material. Orbit.   The track for a vehicle using the ladder type sleeper according to claim 2, wherein the lateral restricting portion restricts a portion of the outer surface of the longitudinal beam corresponding to a portion connected by the transverse beam.   The ladder type sleeper according to claim 10, wherein a lateral regulating portion for regulating an outer side surface of the vertical beam is disposed on both left and right outer sides of a portion where the horizontal beam is connected in the ladder type sleeper so as to sandwich the ladder type sleeper. Used vehicle track. A method for constructing a vehicle track according to claim 1,
Construction of a vehicle track characterized by attaching a sleeper restrictor to a ladder-type sleeper, carrying the ladder-type sleeper with the sleeper restrictor to a predetermined place on a concrete roadbed, and fixing the sleeper restrictor to the concrete roadbed Method. A method for constructing a vehicle track according to claim 3,
The vibration control material is interposed between the ladder type sleeper and the horizontal restriction part and the vertical restriction part, respectively, and the horizontal direction control tool and the vertical direction control tool are attached to the ladder type sleeper, and the ladder type sleeper with the sleeper control tool is concrete A method for constructing a track for a vehicle, wherein the vehicle track is installed at a predetermined location on a roadbed, and a sleeper regulating tool is fixed to a concrete roadbed. A method for constructing a vehicle track according to claim 8,
Attach the horizontal direction control tool and the vertical direction control tool to the ladder type sleeper and attach the horizontal type control tool with an anti-vibration material between the vertical beam and the support, and attach the ladder type sleeper with the sleeper control tool. A method for constructing a track for a vehicle, wherein the method is to carry and install a concrete roadbed to a predetermined place, and to fix a sleeper regulating tool to the concrete roadbed.   Temporarily fix the lateral direction control tool and the vertical direction control tool to the ladder type sleeper with the temporary fixing member, and after fixing the horizontal direction control tool and the vertical direction control tool to the concrete roadbed, remove the temporary fixing member to release the temporary fixing state. The method for constructing a vehicle track according to claim 13 or 14. A method for constructing a vehicle track according to claim 7,
A method for constructing a vehicular track, characterized in that an anchor portion of a sleeper restrictor is buried and fixed by placing concrete further in a predetermined portion of an existing concrete roadbed.   A metal that is fixed to a concrete roadbed and regulates the position of the ladder-type sleeper when a ladder type sleeper having a pair of left and right vertical beams that support the rail on its upper surface and a horizontal beam that connects the vertical beams is laid on the concrete roadbed A sleeper control tool for a ladder type sleeper, comprising an anchor part embedded in a concrete roadbed.

Images