JP2018119261A - Rail track movement method and rail track support device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rail track movement method capable of completing a construction work for switching an existing rail track with a cant to a rail track without a cant in a short time.SOLUTION: The method includes a process of replacing the sleeper 10 supporting the existing rails R1 and R2 with a long sleeper 11; a process of installing a special tie-plate having a height corresponding to the cant of the existing rail on a long sleeper and fixing the existing rail by a rail fastening device; a process of fixing a new rail at a part other than the existing rail laying site of the long sleepers and to be laid on the new rails 12A, 12B and fixing the new rail by the tie-plate and the rail fastening device; a process of removing the rail fastening device and the tie-plate of the rail section located on the extension of the new rail among the existing rails of the curve part; and a process of transferring or adding the rail so as to be continuous with the installed new rail and fixing the linear rail by the tie-plate and the rail fastening device.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a rail moving method and a rail used in the case of switching from a cant (inclined) track to a straight track without a cant or switching from a track without a cant to a track with a cant in a railway track. The present invention relates to a technique that is effective for use in a support device.

  In a railway track, for example, when a station platform is renovated or moved, it may be necessary to perform a construction for switching a curved track to a straight track. Moreover, from the viewpoint of the high public nature of the railway business, it is necessary to carry out the above-mentioned track switching work without stopping the operation of the train, so there is a demand for completion in a limited short time zone at night. is there. However, it may be necessary to replace sleepers in track switching work. In that case, ballast tracks need to be removed and backfilled at the time of replacement of sleepers, resulting in a longer working time. There was a problem.

  As a track switching method that can quickly complete the construction of switching to a new track by adding a crossover to an existing track (existing rail) that has already been laid, a new one among the sleepers (PC sleepers) on the old track The sleeper at the part that intersects or branches the track is replaced with a long sleeper (synthetic sleeper) that has a length that spans between the old track and the new track in advance, and the tie plate for the new track is located where it does not interfere with the old track By installing the, there is one that can reduce the amount of work on the day of construction for the final stage of line switching and can complete the construction in a short time (Non-Patent Document 1).

Published by Japan Railway Facilities Association “Summary of 30th General Technology Lecture (Stops / Plans) (Building Inspection)” P9-P12, held on October 23, 2014, 29th General Technology Lecture Announcement , Title "Station Relocation Plan with Garage Line Adjacent to Large-scale Customer Collection Facility", Speaker: Keihan Electric Railway Co., Ltd. Ryoji Ishizaka

JP 2014-88680 A

  However, the line switching method described in Non-Patent Document 1 is a method based on the premise that the old line does not have a cant, and cannot be applied to a place where the old line has a cant. In other words, in existing railroad tracks, the sleepers are arranged in an inclined state according to the cant where the track has a cant, so the new track is a straight line and the cant is When it is unnecessary, there is a problem that it is not possible to replace the old sleepers with long sleepers.

  On the other hand, a step of replacing the existing normal tie plate with a cant changing special tie plate having a shape for setting a planned cant on the rail in combination with the existing sleeper, the existing sleeper and the cant changing special tie plate Has been proposed that includes a new sleeper having a shape for setting a planned cant on the rail in combination with the normal tie plate, and a method for changing the line cant (Patent Document). 1).

The invention described in Patent Document 1 is a method developed to change the cant of an existing rail, and the changed line is in substantially the same position as the existing rail, and the new line is different from the old line It cannot be applied as it is to the line switching when it is laid.
The present invention has been made paying attention to the problems as described above, and the old line (existing rail) has a cant, while the new line has no cant, or the old line has no cant. When switching to a new track, or when switching to a new track with a different cant, a track moving method capable of completing the work in a short time by reducing the amount of work on the day of the last stage of track switching, and at that time An object is to provide a rail support device to be used.

In order to achieve the above object, the line moving method according to the present invention includes:
The rail fastening device that fixes the existing rail and the sleepers that support the existing rail by removing the tie plate are replaced with long sleepers that span from the existing rail installation site to the new rail installation site, and the long sleeper is installed horizontally on the roadbed. A first step of
A special tie plate having a heel portion having a height corresponding to the cant of the existing rail or the new rail is installed at a predetermined position on the long sleeper, and the existing rail or the new rail with the cant is attached by a rail fastening device. A second step of fixing;
A new rail is laid in a part other than the existing rail laying part of the long sleeper and the new rail is scheduled to be laid on the extension of the existing rail, and the new rail is fixed by a new tie plate and a rail fastening device. A third step;
A fourth step of removing a rail fastening device and a tie plate of a rail portion located on an extension of the new rail among the existing rails;
A fifth step of transferring or adding a rail so as to be continuous with the installed new rail, and fixing the transferred or added rail by a tie plate and a rail fastening device;
It is what was included.

  According to the construction method of the above procedure, there is a second step in which a special tie plate having a height corresponding to the cant of the existing rail is installed on the long sleeper and the existing rail is fixed by the rail fastening device. It is possible to install a horizontal long sleeper in place of the existing sleeper and to lay a part of the straight new rail on the long sleeper in advance. When switching to a track, it is possible to reduce the amount of work on the day when the final stage of track switching is performed and complete the work in a short time.

  Further, after the fifth step, by removing the existing rail remaining on the long sleeper and the rail fastening device and the tie plate for fixing the existing rail, and by removing the remaining existing rail, Railroad switching, and then all the work from removing all existing rails to landscaping can be carried out using only the night hours when the train does not run. It is possible to avoid suspension of service and diamond changes.

Here, preferably, in the first step, an embedded plug or screw hole for screwing a bolt or a screw for fixing the tie plate to the long sleeper at a plurality of locations at predetermined intervals in advance. Long sleepers that form
In the fifth step, the tie plate is fixed to the long sleeper by selecting one of the plurality of embedded plugs or screw holes.

  In this way, when moving the existing rail (old rail) in the final stage of the line switching, one of the embedded plugs or screw holes is used as a position to fix the rail. The transfer rail can be easily and accurately matched and fixed at a position continuous with the new rail already laid. In addition, when using a synthetic sleeper as a long sleeper, it is also possible to form a screw hole with respect to a sleeper according to a rail installation condition on the spot.

Preferably, when applied to a construction for switching an existing rail with a cant to a new rail without a cant, in the fifth step, the curved portion of the existing rail is straightened to straighten the linear shape. Change to rails.
By doing so, compared to the case where all the existing rails in the cant part are removed and replaced with new rails, the rail transfer work is reduced and the work time on the day when the final stage construction is performed can be shortened. In addition, it is possible to reduce the cost by reducing the waste of the rail.

Desirably, in the second step, a seam plate is attached to a portion continuing from the end portion of the existing rail transferred or added from the end portion of the new rail, and the rail at the location where the seam plate is located. Means for fixing the leaf spring member between the tip of the leaf spring member of the rail fastening device provided at a location where the seam plate is located and the upper surface of the lower flange of the rail when inclined according to the cant A clearance adjustment piece for preventing interference with the joint plate is inserted.
If it does in this way, interference with a means (bolt) which fixes a joint board and a leaf spring will be prevented by inserting a clearance adjustment piece between the leaf spring tip of a rail fastening device and the flange upper surface of a rail. This can prevent a situation in which the bolt of the rail fastening device cannot be tightened.

Further, the rail support device according to another invention of the present application is a rail support device used in the track moving method as described above,
A long sleeper having a length that can be installed across the existing rail installation site from the existing rail installation site,
A rail fastening device for fixing the rail to the sleeper attached to the long sleeper together with the tie plate,
A special tie plate that has a heel part with a height corresponding to the cant is installed at the part where the outer rail of the existing rail or the new rail is installed,
In the existing rail or the new rail, a tie plate that does not have the heel portion is installed in a part where the inner rail is installed and a part where the linear rail is installed.

  According to the above configuration, since a special tie plate having a ridge portion with a height corresponding to the cant of the existing rail is installed on the long sleeper, a horizontal long sleeper is used instead of the existing sleeper having an inclined cant part. Can be installed, so that part of the straight new rail can be laid on long sleepers in advance.

Desirably, an adjustment packing having a thickness and a gradient corresponding to a cant is interposed between the upper surface of the upper portion of the special tie plate and the bottom surface of the existing rail.
According to this configuration, the rail height and inclination can be adjusted by the thickness and inclination of the packing, so even if you do not prepare many special tie plates with different heights and inclinations of the ridges, the entire curve can be smoothed. Rails that cant change can be laid.

Furthermore, it is desirable that a hollow portion for reducing the weight is provided in the upper portion of the special tie plate.
According to this configuration, it is possible to reduce the weight of the special tie plate, thereby reducing the burden of line switching work and reducing the time required for construction.

  According to the track moving method and the rail support device according to the present invention, the old track (existing rail) has a cant, while the new track has no cant, or the new track has a cant from the old track without a cant. When switching to a new track or when switching to a new track with a different cant, there is an effect that the amount of work on the day of the last stage of track switching can be reduced and the construction can be completed in a short time.

It is a top view which shows one Embodiment of the track | line moving method which concerns on this invention in order of construction. (A), (B) is a cross-sectional front view which shows the specific example of the rail support apparatus used for the track moving method of embodiment. It is a perspective view which shows the example of the tie plate which has a collar upper part. It is sectional drawing which shows the example of the cross-sectional shape of the angle adjustment packing arrange | positioned between a rail bottom face and a tie plate. (A) is a top view which shows the example of arrangement | positioning of the embedding plug formed in a sleeper, (B), (C) is a top view which shows the state installed in the position which each shifted the tie plate on the sleeper. It is a principal part enlarged view which shows the modification of the rail fastening apparatus of embodiment.

Hereinafter, an embodiment of a line moving method according to the present invention will be described in detail with reference to the drawings.
Drawing 1 (A)-(E) is a top view showing the state of the track location where the track moving method of this embodiment is applied in order of construction. As shown in FIG. 1, the track moving method of the present embodiment is applied to a construction in which a track that has been bent and laid as shown in (A) is laid on a straight track as shown in (E). . Since the track shown in FIG. 1 (A) has a curved portion, it is provided with a cant, and the sleepers 10 that support the rails R1 and R2 are arranged at the curved portion at the outer end. The portion is disposed so as to be inclined so as to be higher than the inner end portion. Although not shown in FIG. 1, the lower flanges of the rails R <b> 1 and R <b> 2 are fixed on the sleepers 10 by a rail fastening device.

  In the construction of this embodiment, as shown in FIG. 1 (B), as a preliminary work, first, a sleeper 10 disposed at a curved portion is made parallel to, for example, a straight sleeper and has an outer end (see FIG. Then, the lower end) is replaced with the long sleepers 11 arranged in a straight line. When the track to be constructed is a ballast track, after removing the ballast and removing the rail fastening device, the original sleeper 10 is removed and replaced with the long sleeper 11 to which the tie plate is attached in advance. The ballast is backfilled and the rails R1 and R2 are fixed to the new long sleeper 11 with a rail fastening device. Here, as described below, the tie plates having different heights are attached to the long sleepers 11 in advance according to the cants, so that the long sleepers 11 can be placed horizontally on the roadbed while holding the cantilevers of the rails. It can be arranged.

In addition, since it takes a relatively long time to remove the ballast, it is difficult to replace all the sleepers 10 arranged in the curve portion with one day within the time when the night train does not travel. It is sufficient to perform replacement in order by night work over a plurality of days. In FIG. 1, the long sleeper 11 that replaces the original sleeper 10 is arranged so as to be parallel to the straight sleeper, that is, to be perpendicular to the new track. It doesn't matter.
Next, as shown in FIG. 1 (B), new straight rails 12A and 12B are laid on the new long sleepers 11 and outside the rails at the curved portions. This new rail laying work can also be carried out during the daytime.

  Next, as shown in FIG. 1C, a part of the rails at the curved portion is removed, and the rails with the thick hatching are removed so that the rail fastening device can be removed and moved. Subsequently, as shown in FIG. 1 (D), the rail of the portion from which the rail fastening device is removed is straightened, and when there is a surplus portion, the surplus portion is cut out, and then the rail is placed on the long sleeper 11 with the rail fastening device. Secure to. The construction shown in FIGS. 1C and 1D is simple and requires a small amount of work, and can be completed within the time when the train on the night of the switching day does not travel.

  Thereafter, the remaining existing rails may be removed and the construction may be completed, or the construction may be completed by replacing the long sleepers 11 with normal sleepers 10 as shown in FIG. . In addition, in recent tracks, ballast and sleepers that make up the track are removed, permeable non-woven fabric and ballast are spread on the roadbed, and wide concrete sleepers are installed. There is a track that does not require maintenance work such as ballast replacement or roadbed consolidation, such as the TC labor-saving track that injects fillers. The state may be changed to the state shown in FIG. In the embodiment of FIG. 1, as shown in (C), a part of the existing rail (chain line portion) is removed, but for example, the new rail 12B has the same length as the new rail 12A, It is also possible to carry out switching to a new track only by moving the old rail cut at a certain position.

Next, a rail support device that includes a sleeper used in the implementation of the track moving method and a rail fastening device fixed to the sleeper and supports the rail integrally with the sleeper will be described with reference to FIGS. Will be described. 2A is a cross-sectional view taken along line IIA-IIA in FIG. 1B, and FIG. 2B is a cross-sectional view taken along line IIB-IIB in FIG.
As shown in FIG. 2 (B), the rail supporting device used in the track moving method of the above embodiment is screwed into the long sleepers 11 arranged horizontally and the embedded plugs 19 embedded in the long sleepers 11. A pair of tie plates 14A and 14B fixed on the long sleeper 11 corresponding to the pair of rails R1 and R2 by means of fixing screws 13 to be combined, and a rail mounted at the center of the tie plates 14A and 14B Rails R1, R2 are placed on the placement portion via adjustment packings 15A, 15B and track pads 16A, 16B. The adjustment packing includes a height adjustment packing and an angle adjustment packing. In FIG. 2, these are drawn without distinction for the sake of illustration.

  And the front-end | tip of a pair of leaf | plate spring member 18 fixed to the tie plates 14A and 14B with the fastening bolt 17 is each contact | abutted to the lower flange of said rail R1, R2, and rail R1 is urged | biased by this urging | biasing force of this leaf | plate spring member 18 , R2 lower flanges are pressed toward the tie plates 14A, 14B, so that the rails R1, R2 are fixed on the long sleepers 11. Further, the adjustment packings 15A and 15B have a wedge shape in which the thickness decreases toward the inner side, whereby the upper surfaces of the rails R1 and R2 have a gradient of 1/40 (angle: 1.5) toward the inner side. °) and configured to tilt. In the present embodiment, the fastening bolt 17 and the leaf spring member 18 constitute a rail fastening device.

  The rail support device of the present embodiment has a trapezoidal shape as a whole with the upper surface as shown in FIG. What has the eggplant upper part 14a is used. Further, since the cant of the track is the largest at the center of the curve portion of the track and goes to the straight portions on both sides, the cant becomes smaller. Prepare. Further, a tie plate 14C on which the new rail 12B is placed is provided on the side portion (the right side portion in FIG. 2) of the long sleepers 11 arranged in the cant portion.

  Since the tie plate 14B 'having the ridge upper portion 14a is heavy, it is preferable to reduce the weight by providing the cavity portion 14b. By providing the hollow portion 14b to reduce the weight, the handling of the tie plate is facilitated, and the workability of the construction can be improved.

  Furthermore, in the present embodiment, in order to be able to change the size of the cant gently, it has a cross-sectional shape as shown in FIGS. Types (for example, 6 types) of adjustment packings are prepared. One of the packings for adjustment is assumed to have a uniform thickness as shown in FIG. Any of the types shown in FIGS. 4A to 4C is used as the tie plate 14A on the inner track side of the cant portion, depending on the angle of the cant. On the other hand, the tie plate 14B 'on the outer track side is the type shown in FIG.

  In addition, in the tie plate 14A side without the heel portion, when the cant becomes large, as shown in FIG. 2 (B), in order to incline the rail R1 on the inner track side with a gradient of 1/40 with respect to the cant surface, In some cases, the packing for adjustment becomes thicker as it goes inward, but an appropriate packing can be selected from the six types of packing for adjustment. And by using the packing for adjustment properly, as the tie plate 14A on the inner rail side, a central rail mounting portion having a horizontal height and the same height can be used regardless of the size of the cant. Thereby, in the rail R1 on the inner rail side, it is possible to generate a portion inclined inward and a portion inclined outward depending on the cant.

Next, the long sleepers 11 and the rail fastening devices (17, 18) constituting the rail support device of the present embodiment will be described.
As long sleepers 11, it is desirable to prepare a plurality of types (for example, five types) having different lengths as can be seen from FIG. 1, so that PC (prestressed concrete) is used from the viewpoint of the cost of manufacturing the formwork. It is better to use a synthetic sleeper made of glass fiber and rigid foamed polyurethane resin than a sleeper.

  In addition to the tie plates 14A and 14B shown in FIG. 2 for fixing the rails R1 and R2, the long sleeper 11 has a tie plate for fixing a new rail (the type shown in FIG. 2A). A hole for making it easy to screw in the embedded plug or screw nail is provided in order to attach the same component as that of the rate 14A.

Furthermore, there is a case where it is necessary to secure an adjustment amount larger than usual as the adjustment width of the fixed position of the tie plate because it is desired to correct the displacement of the rail without changing the position of the sleepers at the time of track switching construction. is there.
Therefore, in the long sleeper 11 constituting the rail support device of the present embodiment, as shown in FIG. 5A, the adjustment embedded plugs 19a1, 19b1 are positioned at positions where the present line and the future linear theoretical value are obtained. 19a2 and 19b2 are provided. In FIG. 5A, the positions of the embedded plugs 19a1, 19b1 and 19a2, 19b2 are shifted in the sleeper width direction (vertical direction in the figure). This is because the configuration opposite to the lotus is adopted so that the direction opposite the lotus can be selected from either FIG. 5 (B) or (C).

  In order to enable the above two types of mounting methods, as shown in FIG. 3, the tie plate 14B ′ has four rectangular shapes, two on each side wing part across the rail mounting part (upper part of the collar). The washer insertion port 14c is provided, and a rack 14d is formed on the inner wall surface in the longitudinal direction of the washer insertion port 14c. Moreover, the rack 14d is formed so as to be shifted by a half pitch between the opposing surfaces. And the adjustment washer 20 by which the rack is similarly formed in the both sides | surfaces corresponding to the said rack formation surface can be inserted in the said washer insertion port 14c. The same applies to the tie plates 14A and 14B that do not have a heel portion.

In addition, the racks on both side surfaces of the adjustment washer 20 are also formed so as to be shifted by a half pitch, and a fixing bolt 21 screwed into the embedded plugs 19a and 19b or a screw nail is inserted in the center. An insertion hole 20a is formed.
Since the rack on the inner wall surface of the washer insertion opening 14c and the side surface of the adjustment washer 20 is configured as described above, the adjustment washer 20 is shifted relative to the tie plate 14 by changing the meshing position of the rack. be able to. At this time, the adjustment washer 20 is made immovable by inserting the fixing bolt 21 or the screw nail into the bolt insertion hole 20a and screwing it into the embedded plugs 19a and 19b. Can be changed.

The amount of adjustment at that time is an integral multiple of the rack pitch, and the difference between the lengths of the washer insertion opening 14c and the adjustment washer 20 (for example, 20 mm) or more cannot be adjusted. Therefore, in such a case, the position of the tie plate 14 can be changed more greatly by changing the embedded plugs 19a and 19b to which the fixing bolt 21 is screwed.
A pair of protrusions 14e for position regulation are formed on both sides of the central rail mounting portion of the tie plate 14, and fastening bolts for fixing the leaf spring member 18 to the center of the protrusions 14e. A recess 14f (see FIG. 3) into which the 17 heads are fitted is provided. The fastening bolt 17 is set in a projecting shape 14e with the head upside down, that is, with the head down, and after inserting the hole of the leaf spring member 18 into the male screw portion of the fastening bolt 17, the nut 17a is screwed together. By tightening, the leaf spring member 18 is fixed to the tie plate 14.

  As described above, in the track moving method of the present embodiment, the old rails are reused by extending the bent old rails R1 and R2 straight and continuing with the new rails 12A and 12B. Therefore, compared with the case where all the old rails in the cant part are removed and replaced with new rails, the work of transferring the rails is reduced, and the work time on the day of the final stage construction can be shortened. This can reduce costs and reduce costs. In addition, since multiple packings are provided between the rail bottom and the tie plate, the height and inclination of the rail can be adjusted by the thickness and inclination of the packing. Even if you do not prepare a special tie plate, you can lay rails that cant smoothly change over the entire curve.

  In addition, when the work for removing or relocating the bent old rails R1 and R2 is performed as in the line switching work of the above embodiment, the rail fastening device is loosened and the old rail is removed when the old rail is removed. It is conceivable that, due to the release of the lateral stress, the sleepers move and the position of the embedded plug deviates from the initial position. For this reason, when there is only one set of embedded stoppers provided on the sleepers, the adjustment may not be achieved by simply moving the adjustment washer 20 provided on the rail fastening device. There is a risk that extra time for shifting will occur, resulting in longer work time. On the other hand, in the above-described embodiment, since the embedded plugs are provided at a plurality of positions at predetermined intervals in advance as described above, the position adjustment of the rail fastening device is facilitated, and the working time can be shortened. .

  In the above embodiment, the normal tie plate and the adjustment packing which do not have the heel portion for the inner rail side rail of the cant portion and the special tie plate which has the heel portion for the outer rail side rail and for adjustment are used. Although it was explained that adjustment is performed using packing, the inner rail side rail can be adjusted properly and the rail height can be adjusted by using the adjustment packing (angle adjustment packing and / or height adjustment packing) and the steel plate for lifting. Adjusting and using the special tie plate with the upper part on the outer rail side, adjustment packing (angle adjustment packing and / or height adjustment packing), and steel plate for lifting, proper cant adjustment and rail height adjustment May be performed. In addition, for small cants, normal tie plates and angle adjustment packings are used for both the inner and outer gauges, and the outer gauge side is further raised to an appropriate cant by inserting a height adjustment packing and a steel plate for lifting. You may do it.

Next, a modification of the above embodiment will be described with reference to FIG.
In the above embodiment, the bent old rails R1 and R2 are cut and straightened to be continued with the new rails 12A and 12B. Therefore, in the portion where the new rail and the old rail are continuous, that is, at the joint between the rails, A seam plate is attached to the side of the rail. Further, in the above embodiment, the wedge-shaped adjustment packing 15 is interposed between the rail bottom surface and the tie plate 14 in order to give the rail an inclination corresponding to the cant.

For this reason, the rail fastening device may come at the joint between the new rail and the moved old rail with a large inclination of the rail. In such a case, as shown in FIG. 6, there is a possibility that the joint plate 23 interferes with the nut 17a of the fastening bolt 17 of the leaf spring member 18 and cannot be tightened.
Therefore, in this modified example, as shown in FIG. 6, a clearance formed of a rigid material that has a parallelogram in cross section between the tip of the leaf spring member 18 and the upper surface of the lower flange of the rail R and is difficult to deform. By interposing the adjustment piece 22, the fastening bolt 17 of the leaf spring member 18 is largely inclined toward the rail side to avoid interference with the joint plate 23.

  As mentioned above, although one Embodiment of this invention was described, this invention is not limited to the said embodiment, A various change is possible. For example, in the above embodiment, in order to make it possible to adjust the position of the tie plate with respect to the sleeper, a plurality of embedded plugs 19 are provided in advance in the sleeper and an adjustment washer 20 having a rack is used. Any one of the configurations, that is, a configuration in which only the plurality of embedded plugs 19 are provided, or a configuration in which only the adjustment washer 20 is provided is also possible.

In addition, the rail fastening device is not limited to the one that directly presses the flange of the rail at the tip of the leaf spring as in the above embodiment, and is configured to press the flange through a pressing tool pressed by the spring. May be. Alternatively, one of the rail flanges may be pressed by a block-shaped pressing tool, and the other flange may be pressed by a leaf spring.
Furthermore, the present invention is not limited to the work for switching from a cant line to a straight line without a cant, but from the work to switch from a straight line without a cant to a line with a cant, or from a line with a predetermined cant This can also be used for construction to switch to a track with a different cant amount (tilt).

R Existing rail (old rail)
10 sleepers 11 long sleepers 12 new rails 13 fixing screws 14 tie plates 15 adjusting packings 17 fastening bolts (rail fastening devices)
18 Leaf spring member (rail fastening device)
19 Embedded plug 20 Adjustment washer 21 Fixing bolt 22 Clearance adjustment piece 23 Seam plate

Claims (7)

The rail fastening device that fixes the existing rail and the sleepers that support the existing rail by removing the tie plate are replaced with long sleepers that span from the existing rail installation site to the new rail installation site, and the long sleeper is installed horizontally on the roadbed. A first step of
A special tie plate having a heel portion having a height corresponding to the cant of the existing rail or the new rail is installed at a predetermined position on the long sleeper, and the existing rail or the new rail with the cant is attached by a rail fastening device. A second step of fixing;
A new rail is laid in a part other than the existing rail laying part of the long sleeper and the new rail is scheduled to be laid on the extension of the existing rail, and the new rail is fixed by a new tie plate and a rail fastening device. A third step;
A fourth step of removing a rail fastening device and a tie plate of a rail portion located on an extension of the new rail among the existing rails;
A fifth step of transferring or adding a rail so as to be continuous with the installed new rail, and fixing the transferred or added rail by a tie plate and a rail fastening device;
A track moving method comprising: In the first step, long sleepers in which embedded plugs or screw holes for screwing bolts or screws for fixing the tie plate to the long sleepers are formed at a plurality of locations at predetermined intervals in advance. Install
2. The line moving method according to claim 1, wherein, in the fifth step, the tie plate is fixed to the long sleeper by selecting one of a plurality of the embedded plugs or screw holes.   When applied to a construction that switches an existing rail with a cant to a new rail without a cant, in the fifth step, the curved portion of the existing rail is straightened to be changed to the straight rail. The line moving method according to claim 1 or 2, characterized by the above-mentioned.   In the second step, a seam plate is attached to a portion continuing from the end portion of the existing rail transferred or added from the end portion of the new rail, and the rail where the seam plate is located is inclined according to the cant Between the means for fixing the leaf spring member and the joint plate between the tip of the leaf spring member of the rail fastening device provided at a place where the joint plate is located and the upper surface of the lower flange of the rail. The line moving method according to any one of claims 1 to 3, wherein a clearance adjustment piece for preventing interference is inserted. A rail support device used in the track moving method according to claim 1,
A long sleeper having a length that can be installed across the existing rail installation site from the existing rail installation site,
A rail fastening device for fixing the rail to the sleeper attached to the long sleeper together with the tie plate,
A special tie plate that has a heel part with a height corresponding to the cant is installed at the part where the outer rail of the existing rail or the new rail is installed,
A rail support device characterized in that a tie plate having no upper part of the collar is installed in a part where an inner rail is installed and a part where a linear rail is installed among existing rails or new rails. .   6. An adjustment packing having a thickness and a gradient corresponding to a cant is interposed between the upper surface of the upper portion of the special tie plate and the bottom surface of the existing rail. Rail support device.   The rail support device according to claim 5 or 6, wherein a hollow portion for weight reduction is provided in the upper portion of the ridge of the special tie plate.

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