JP2006200267A - Track branch part and its laying method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a track branch part capable of being efficiently laid while eliminating complication of laying work; and to provide a laying method of its track branch part. <P>SOLUTION: In this track branch part S, main tracks 71' and 72' are composed of two rails R, and the main tracks are arranged in a plurality of rows on a plurality of long size sleepers 1, and a branch track S2 for crossing the mutual main tracks is arranged on the long size sleepers 1. The long size sleepers 1 are constituted by joining a plurality of sleeper pieces 2 and 3, and a fitting part is arranged in joining parts A and B of the sleeper pieces 2 and 3. The mutual sleeper pieces 2 and 3 are integrated by fitting and joining the mutual fitting parts A and B. The joining parts A and B of the sleeper pieces 2 and 3 are positioned between the mutual main tracks, and the joining parts A and B of the respective sleeper pieces 2 and 3 are arranged in a row. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a track branch portion and a method for laying a track branch portion.

Railroad tracks have various branches such as single-open branches, double-open branches, sorting branches, overpass branches, diamond crossings, and seaser crossings. Depending on the shape of the branch sections, long sleepers of 6m to 9m are required. Become. If such a long sleeper is laid as it is, transportation and laying become large (see Patent Document 1). In addition, underground tracks and tracks that are shielded by retaining walls on both sides are not practical because sleepers are too long.
JP-A-11-152703

  Therefore, when laying a long sleeper tree, a method of joining the split sleeper tree at the laying site to increase the length of the sleeper is usually adopted, so that the sleeper can be easily joined at the laying site, and the strength immediately after joining. Is required to be expressed.

  In the case of using a conventional wood sleeper, in order to ensure the joining strength, the longitudinal ends of the sleeper wood pieces are brought into contact with each other and joined using a dedicated metal fitting. However, in the joining method using such a metal fitting, since the metal fitting is located at the joint portion between the pillow pieces, the rail cannot be fastened to the joint portion.

  By the way, in branch parts, such as a shisa crossing, the fastening part of a rail shifts to the longitudinal direction for every long sleeper. Therefore, when the sleepers are joined together using the above-described metal fittings, the positions of the metal fittings, that is, the joints of the pillows must be sequentially shifted so as to avoid the fastening position of the rail. For this reason, according to the shape of a branch part, many sleepers with different lengths must be prepared and laid and joined, which complicates work and requires a lot of labor.

  Further, when the track branching part is moved, the work becomes more complicated. For example, when a ground track having a track branching portion is transferred to an elevated track, the transfer work is performed while operating the main track.

  That is, one elevated track is constructed adjacent to the ground track, one ground track adjacent to the elevated track is switched to the elevated track, and the ground track is removed. Next, an elevated track is built on the site of the removed ground track adjacent to the existing elevated track, the remaining ground track is switched to the elevated track, and then the branch track is moved between the elevated main tracks. It is laid in the procedure to do.

  However, as described above, a long sleeper must be connected to a sleeper piece so as to avoid the fastening position of the rails of the main track and the branch track. It usually takes a long period of about one year to a year and a half before the main track is elevated.

Therefore, when relocating the first main track to the elevated, temporarily lay the main track using sleepers of appropriate length at the planned site of the track bifurcation, and when the adjacent elevated is built, The sleeper piece of the main track was removed, and a new piece of sleeper piece with a different length was joined and laid again. For this reason, the adjacent main track cannot be laid using the existing main track as it is, and the laying work is complicated and requires a lot of time.

  This invention is proposed in view of the said situation, and it aims at providing the track | orbit branch part which eliminated the complexity of laying work. Another object of the present invention proposed at the same time is to provide a method for laying the track branch portion.

  The invention according to claim 1, which is proposed to achieve the above object, is a combination of two rails to form a set of main track and a plurality of rows of main tracks on a plurality of long sleepers. In addition, in the orbital branching section in which the branching trajectory that crosses the main track is provided on the long sleeper, the long sleeper is formed by joining two or more sleeper pieces, and joining the sleeper pieces. The mating portions are fitted to each other, and the sleeper pieces are joined and integrated in a state where the fitting portions are fitted to each other, and the joining portions of the sleeper pieces are connected to the main track. The joints of the sleeper pieces are arranged in a row.

  According to the present invention, the mating parts of the sleeper pieces are fitted together and joined together without using a metal fitting or the like when joining the sleeper pieces. As a result, a screw nail or the like for fastening the rail to the joint can be driven. That is, the rail can be fastened to any part of the upper surface of the long sleeper including the joint. Therefore, the joint portion of the long sleeper can be set at an arbitrary position regardless of the fastening portion of the rail.

  In addition, according to the present invention, a plurality of long sleepers in the track branching portion are arranged in a row with the joints of the respective sleeper pieces in relation to the fact that the joints of the long sleeper can be set at arbitrary positions. . That is, the positions of the joint portions of the plurality of long sleepers are all aligned at the same portion in the longitudinal direction. Therefore, the shape of the plurality of sleeper pieces constituting the long sleeper can be unified for each sleeper piece, and the manufacturability and laying workability can be improved.

  In addition, according to the present invention, the joints of the sleeper pieces are located between the main line tracks, and the joints of the sleeper pieces are arranged in a line. That is, according to the present invention, each sleeper piece has a length at least equal to that of a normal sleeper.

  Therefore, even if the sleeper pieces are not joined to each other, each sleeper piece functions in the same manner as a normal sleeper piece. As a result, when moving the track, even if only one main track is laid using one sleeper piece of long sleeper, the joint of the sleeper piece remains open. It can function as a normal sleeper, and the trajectory can be operated in that state.

  In this invention, it is good for the fitting part provided in the junction part of sleeper pieces to be mutually complementary shape. By making the fitting portions have complementary shapes, the fitting portions can be fitted in close contact with each other, and the bonding strength is improved. Moreover, the structure which joins a reinforcement member to a junction part, or the structure which drives a joining pin (embedding) etc. in a junction part can also be employ | adopted, and joining strength improves further.

Invention of Claim 2 is the laying method of the track | orbit branch part of Claim 1, Comprising: The pillow piece corresponding to the said track | orbit is installed in the planned laying place of one main track | truck of the plurality of rows of main track | trucks. Place the rails on the placed sleeper pieces in sequence and complete the main line track, and place the sleeper pieces corresponding to the track on the planned track laying site adjacent to the existing main track. The joint between the sleeper piece and the sleeper piece of the existing track is sequentially joined, and an extension process for fastening the rail on the joined sleeper piece to complete the track and branching between the adjacent main track After the initial process is constructed, the main track is expanded while joining and extending the sleeper pieces in the extension process, and the branch section laying process is performed. Column A laying method for laying a track branch section having a branch track to interlaced line orbit and the mainline track each other.

  According to the present invention, when the initial process is completed, the main track is laid with the joints of the pillow pieces open, and the operation of the main track can be started immediately. In addition, in the expansion process following the initial process, another sleeper piece is sequentially joined to the sleeper pieces already laid in the initial process, and a rail is fastened on the joined sleeper pieces to complete the track.

  As a result, it is not necessary to modify the existing track, and it is possible to complete the adjacent track by joining and extending the pillow pieces by using the existing track as it is. Can do. In this way, the added orbit can be started immediately.

Furthermore, after the initial process and the expansion process are performed, the main track is expanded while joining the sleeper pieces and making them longer in the expansion process. Further, a branching section laying process is performed for laying a branching track between the installed main line tracks. By repeating these expansion process and branch laying process, it is possible to lay a plurality of lines of main track and branch track and complete the construction of the track branch section.
During construction, the branching process may be performed after completing all the extension processes and completing a plurality of main tracks, and the branch section installation process is performed every time the extension process is performed and the main tracks are added. May be.

  The present invention can be suitably employed, for example, when the main track including the track branching portion is moved while operating the main track, reducing the labor for the transfer and improving the work efficiency.

  According to a third aspect of the present invention, in the trajectory branching portion according to the first aspect, the main track is provided in two rows on a plurality of long sleepers, and the branch trajectory that crosses the main tracks is the The long sleeper is a method of laying a track branching portion formed by joining two pieces of sleeper wood, and the sleeper corresponding to the track on the planned construction site of one main track Place the pieces sequentially, fasten the rails to the placed sleeper pieces and complete the main track, and sequentially place the sleeper pieces corresponding to the track on the planned track laying site adjacent to the existing main track The joints between the placed sleeper pieces and the sleeper pieces of the existing track are sequentially joined together, and an extension process for fastening the rail on the joined sleeper pieces to complete the track is separated from the installed main track. A laying method and a branch portion laying step of laying the track.

  The present invention shows a laying method when the number of lines of the main track is limited to two in the laying method of the track branching portion according to claim 2, and is the same as the invention according to claim 2. There are effects and effects.

  The invention according to claim 4 is the method of laying the track branching portion according to claim 2 or 3, wherein the sleeper piece to be laid on the adjacent track is joined to the sleeper piece laid on the existing track. The protection member is attached to the joint portion of the sleeper piece laid on the existing track.

In the present invention, the attachment of the protective member to the joint portion of the sleeper piece may be performed in the manufacturing process of the sleeper piece, or may be performed at the laying site. In the manufacturing process, if the protective member is attached to the joint portion of the pillow piece, it is possible to prevent the joint portion from being damaged during the transportation or laying of the sleeper piece.

  According to the present invention, in the initial step, the sleeper piece is laid in a state where the protective member is attached to the joint portion of the sleeper piece. Therefore, it is possible to prevent the sleeper piece from being damaged during the laying operation. Moreover, even if the initial process is completed and the operation of the main track is started, the protective member is continuously mounted as it is.

  Therefore, during the period until the sleeper piece is joined by the expansion process, the fitting part provided at the joined part of the sleeper piece is not directly exposed to rainwater or dust, and the surface of the fitting part may be worn out. In addition, the sleeper piece can be joined by removing the protective member during the expansion process. Thereby, fatigue of the fitting portion is suppressed to prevent a reduction in bonding strength, and workability at the time of bonding is improved.

  The present invention is also applicable to pillow pieces that are laid in the expansion process. That is, when the joint part at one end of the sleeper piece is joined to the sleeper piece of the existing track and the joint part at the other end is opened, the same is achieved by attaching a protective member to the joint part. It is possible to achieve the effects and effects of

  According to a fifth aspect of the present invention, in the method for laying a track branching portion according to any one of the second to fourth aspects, the set of sleeper pieces constituting the long sleeper includes at least a set or a joining order. A unique code indicating either one is added in advance.

  Here, when the sleeper pieces are joined by fitting the fitting portions, it is important to fit the sleeper pieces while the fitting portions are in close contact with each other in order to improve the joining strength. For this reason, when the sleeper pieces are fitted to each other, it is necessary to combine and join the sleeper pieces having matching shapes of the fitting portions.

  According to the present invention, each sleeper piece is given a unique code indicating at least one of a set or a joining order in the manufacturing stage. Therefore, by referring to the unique code, it is possible to easily extract a set of sleeper pieces constituting a long sleeper, and it is possible to fit and join fitting parts having the same shape, Workability can be improved while improving the bonding strength.

  The present invention is suitable for manufacturing a sleeper piece by cutting a single long sleeper at a joint to form a fitting part having a complementary shape. According to this configuration, it is possible to easily extract a sleeper piece having a matching shape of the fitting portion with reference to the unique code, and it is possible to improve the joint strength while improving workability.

According to the track branching portion of the first aspect, a sleeper piece having the same shape can be joined and used also in a branching portion such as a shisa crossing where the fastening position of the rail in the longitudinal direction of the sleeper is different. As a result, it is not necessary to prepare pillow pieces of different lengths so as to avoid the fastening portion of the rail, the members can be unified, the productivity of the sleepers is improved, and the workability at the laying site is improved. It is possible.
According to the second to fifth aspects of the present invention, it is possible to lay the adjacent track and the branch track by connecting the sleeper trees in order and maintaining the connection strength without changing the existing track. . Thereby, the workability of laying the track branch portion can be improved, and the laying work within a limited time at night or the like can be efficiently performed.

  Embodiments of the present invention will be described below with reference to the drawings. In the description, the structure of the sleeper tree (long sleeper) employed in the track branch part of the present invention will be described first, and then the method of laying the track branch part using the long sleeper will be described.

  FIG. 1 is a plan view showing a track branching portion S according to the present embodiment, FIGS. 2 to 6 are explanatory views showing a manufacturing procedure of a long sleeper employed in the track branching portion S shown in FIG. FIG. 3 is an exploded perspective view and a perspective view of one sleeper piece of a long sleeper tree used in the track branching portion, FIG. 3 is a partially enlarged perspective view of a reinforcing member used in the sleeper piece of FIG. 2, and FIG. 4 is a sleeper piece shown in FIG. 5 is an exploded perspective view and a perspective view of a sleeper piece used as a pair, FIG. 5 is a perspective view showing a procedure for attaching a protection member to the sleeper piece shown in FIG. 4, and FIG. 6 is a cover of the sleeper piece shown in FIG. FIG.

  FIGS. 7 to 15 are explanatory views showing a method of laying the track branch portion when the ground track is moved to the elevated track using a long sleeper, and FIG. 7 is a diagram of the ground having the track branch portion shown in FIG. FIG. 8 is a perspective view showing the main track laid on the elevated part in the initial step shown in FIG. 7, and FIG. 9 is a diagram showing the initial process of the method for laying the track branching part when moving the track to the elevated track. FIG. 9 is a plan view showing a main track laid in the initial step shown in FIG. FIG. 10 is an explanatory diagram showing an extension process following the initial process of the method for laying the track branching portion of the present invention, FIG. 11 is a perspective view showing a connection procedure between sleeper pieces in the extension process shown in FIG. 10, and FIG. FIG. 13 is a perspective view showing a procedure for inserting the plugs when connecting the sleeper pieces shown in FIG. 11, FIG. 13 is a perspective view showing a state where the sleeper pieces are connected in the expansion step shown in FIG. 10, and FIG. FIG. 15 is an explanatory view showing a state in which the expansion process is completed in the part laying method, and FIG. 15 is a plan view showing a completed state of the expansion process shown in FIG.

As shown in FIG. 13, the long sleeper 1 employed in the present embodiment is constructed by connecting the sleeper piece 2 and the sleeper piece 3 at the site where the track branching portion is laid.
First, the structure of the pillow piece 2 will be described with reference to the manufacturing process.
A sleeper 10 used for the sleeper piece 2 is a sleeper having a joint A formed at one longitudinal end of a prismatic material as shown in FIG.

  The joint portion A has an inclined surface 12 that extends from the lower surface 10c side to the upper surface 10a side of the sleeper 10 as it goes toward the end in the longitudinal direction. The lower surface 10c continuing from the lower end of the inclined surface 12 to the longitudinal center portion side of the sleeper 10 is notched upward by a thickness of a reinforcing member 20 described later over a substantially half length of the inclined surface 12. A stepped portion 14 is formed. Further, the upper surface 10a that continues from the upper end of the inclined surface 12 to the longitudinal center side of the sleeper 10 is notched downwardly and retracted by a thickness of a reinforcing member 20 described later over substantially half the length of the inclined surface 12. A stepped portion 13 is formed.

Further, both side surfaces 10b, 10b of the sleeper 10 in the joint portion A are notched in the width direction by a thickness of a reinforcing member 25 described later, and stepped portions 15, 15 are formed.
The joint portion A has a complementary shape with a joint portion B provided on the sleeper piece 3 described later, and the joint portion A forms a fitting portion A that fits the joint portion B.

  As shown in FIG. 2A, a plurality of plug holes for driving the plugs are drilled in the joint A of the sleeper 10. In other words, two embedding holes 18 having a depth substantially half the height of the sleeper 10 are drilled upward in the stepped portion 14, and the inclined surface 12 of the sleeper 10 is penetrated in the vertical direction. Two plug holes 16 are provided, and the step portion 13 is provided with two plug holes 17 penetrating in the vertical direction. Further, in the stepped portions 15, 15, three embedding holes 19 having a depth of about ３ of the width of the sleeper 10 are formed in the width direction.

  The reinforcing member 20 is a rectangular flat plate-like member, has a width substantially equal to the length between the step portions 15 and 15 of the sleeper 10, and is approximately twice the length of the step portion 14 in the longitudinal direction of the sleeper 10. Have a length. Further, the reinforcing member 20 has a thickness substantially equal to the depth of the step portions 13 and 14. The reinforcing member 20 is provided with four openings 21 for driving the plugs in portions corresponding to the plug holes 14 and 16 provided in the sleeper 10.

  The reinforcing member 25 is a long rectangular plate-like member, has a width substantially equal to the height of the sleeper 10, and has a length approximately twice that of the reinforcing member 20. Further, the reinforcing member 25 has a thickness substantially equal to the depth of the step portion 15. The reinforcing member 25 is provided with three openings 26 for driving the plugs in portions corresponding to the plug holes 19 provided in the sleeper 10, and further, at the center in the longitudinal direction and the width direction of the reinforcing member 25. Openings 26 are also provided at portions where these three openings 26 are point-symmetric with respect to a point.

  In this embodiment, the sleeper 10, the reinforcing member 20, the plugs 22 and 27, and the plug 40 to be described later are made of synthetic wood made of glass long fiber reinforced urethane resin foam, and the glass long fibers are aligned. Each member is cut out from the raw material of the synthetic wood so that the obtained direction becomes the longitudinal direction of each member.

On the other hand, the reinforcing member 25 has a configuration in which FRP reinforcing layers 25b and 25b are coated on both surfaces of a synthetic wood plate material 25a made of a long glass fiber reinforced urethane resin foam as shown in FIG. In the present embodiment, as the FRP reinforcing layer 25b, a layer in which three or more glass mats and glass rovings are alternately laminated is impregnated with a synthetic resin agent and coated and cured.
The plate member 25a used for the reinforcing member 25 is also produced by cutting each member from the raw material of synthetic wood so that the direction in which the long glass fibers are aligned is the longitudinal direction of each member.

Next, the manufacturing procedure of the pillow piece 2 will be described with reference to the drawings.
First, as shown in FIG. 2A, a resin adhesive is applied to the step portion 14 of the joint portion A, and the reinforcing member 20 is joined to the step portion 14. Next, a resin adhesive is applied to the plugs 22, and the plugs 22 are driven into the two plug holes 18 through the openings 21 of the reinforcing member 20.

Subsequently, as shown in FIG. 2B, a resin adhesive is applied to the step portions 15 and 15 on both sides of the joining portion A, and the reinforcing member 25 is joined to each. Next, a resin adhesive is applied to the plugs 27, and the plugs 27 are driven into the three plug holes 19 on both sides through the openings 26 of the reinforcing member 25.
By the above procedure, as shown in FIG. 2C, the manufacture of the sleeper piece 2 in which the reinforcing members 20 and 25 are attached in advance to the sleeper 10 is completed.

Next, the structure of the pillow piece 3 will be described.
As shown in FIG. 4A, the sleeper tree 30 used for the sleeper piece 3 is a member in which a joint portion B is formed at one longitudinal end of a prismatic material, and the sleeper tree 30 has the same width and the sleeper tree 10 as described above. Has a height.

  The joint portion B has an inclined surface 32 that extends from the upper surface 30a side to the lower surface 30c side of the sleeper 30 as it goes toward the end in the longitudinal direction. Further, the upper surface 30a that continues from the upper end of the inclined surface 32 to the longitudinal center side of the sleeper 30 is notched downwardly by the thickness of the reinforcing member 20 over a substantially half length of the inclined surface 32, and is retracted. A step 33 is formed. Further, the lower surface 30c continuing from the lower end of the inclined surface 32 to the longitudinal center portion side of the sleeper 10 is notched upward by the thickness of the reinforcing member 20 over a substantially half length of the inclined surface 32 and retracted. A step portion 34 is formed.

Further, both side surfaces 30b and 30b of the sleeper 30 in the joint portion B are cut out in the width direction by the thickness of the reinforcing member 25, and stepped portions 35 and 35 are formed.
The joint part B has a complementary shape with the joint part A provided on the sleeper piece 2, and the joint part B forms a fitting part B that fits the joint part A.

  In this embodiment, the inclination angle of the inclined surface 12 of the sleeper piece 2 and the inclined surface 32 of the sleeper piece 3 is set to approximately 9 degrees, but according to the required bonding strength (bonding area). Thus, the inclination angle can be set as appropriate.

  As shown in FIG. 4A, a plurality of plug holes for driving the plugs are formed in the joint portion B of the sleeper 30. In other words, two plug holes 38 having a depth substantially half the height of the sleeper 30 are formed in the step portion 33 downward. The inclined surface 32 is provided with two plug holes 36 penetrating to the lower surface 30, and the step portion 34 is provided with two plug holes 37 penetrating the inclined surface 32. Further, three embedding holes 39 each having a depth of about 1/3 of the width of the sleeper 10 are formed in the step portions 35 and 35 in the width direction.

Next, the manufacturing procedure of the pillow piece 3 will be described.
First, as shown in FIG. 4A, a resin adhesive is applied to the step portion 33 of the joint portion B, and the reinforcing member 20 is joined to the step portion 33. The reinforcing member 20 is the same as that used for the pillow piece 2 (see FIG. 2a). Then, an adhesive is applied to the plugs 22, and the plugs 22 are driven into the two plug holes 38 of the sleeper 30 through the openings 21 of the reinforcing member 20. The assembly of the pillow piece 3 is completed by the above procedure.

By the above procedure, the sleeper pieces 2 and 3 forming the long sleeper 1 are each assembled in the manufacturing factory.
Here, although not shown in the figure, in this embodiment, the set of sleeper wooden pieces 2 and 3 forming the long sleeper 1 is given a unique number indicating the set. This makes it possible to easily extract the sleeper piece 2 that forms a pair with the sleeper piece 3 by using the unique number as a clue in the method of laying the track branching portion described later.
In the long sleeper 1 employed in the present embodiment, a protective member is further attached to the sleeper piece 3 and a protective sheet is attached to the sleeper piece 2 in the manufacturing factory.

  A protective member 5 is attached to the pillow piece 3 as shown in FIG. The protective member 5 is a member molded while slightly foaming a urethane resin material. That is, the protection member 5 is a short member composed of the main body 50 having the same height and width as the joint (fitting part) B of the sleeper piece 3, and is joined to the longitudinal end of the main body 50. It has a fitting part C that is complementary to the part (fitting part) B.

  The fitting part C has the inclined surface 51 which goes to the upper surface 50a side from the lower surface 50c side of the main-body part 50 as it goes to a longitudinal direction edge part. The upper surface 50a continuing from the upper end of the inclined surface 51 to the other longitudinal end side of the main body 50 is cut back downward by the thickness of the reinforcing member 20 over substantially half the length of the inclined surface 51. A stepped portion 52 is formed. Further, the engaging portion 52 having the same thickness as that of the reinforcing member 20 from the lower end of the inclined surface 50 toward the longitudinal end portion of the main body portion 50 is substantially half the length of the inclined surface 32 on the extended line of the lower surface 50c. It extends over the length.

  The fitting portion C is provided with a plurality of through holes corresponding to the openings and through holes of the sleeper piece 3. That is, in the step portion 51, two through-holes 53 that penetrate in the vertical direction are provided in a portion corresponding to the opening 21 of the reinforcing member 20, and the through-hole provided in the inclined surface 32 in the main body portion 50 and the engaging portion 52. Two through holes 56 and 66 penetrating in the vertical direction are provided in portions corresponding to the holes 37.

The protective member 5 is fitted to the sleeper piece 3 and attached, and is fastened and fixed by a fastening member (wire) K. That is, the fitting portion C of the protection member 5 is fitted to the fitting portion B of the pillow piece 3. Then, the tip of the wire K is inserted from the opening 21 of the reinforcing member 20 and pulled out from the lower surface 30 c of the sleeper 30, the tip of the wire K is folded back and inserted from the through hole 55 of the engaging portion 54, and the upper surface 50 c of the main body 50. It pulls out from the through hole 26. Then, the ends of the inserted wire K are twisted together and fastened.

  When the protection member 5 is attached to the sleeper piece 3, the protection member 5 having a complementary shape comes into contact with the fitting portion B. Thereby, it is prevented that excessive force is locally applied to the end of the reinforcing plate 20 and the end of the inclined surface 32, and damage during transportation and laying is prevented. Further, by attaching the protective member 5, the fitting portion B is prevented from being directly exposed to the outside, and the joint surface such as the inclined surface 32 is prevented from being worn out by rainwater or dust.

  On the other hand, a protective sheet 6 is attached to the pillow piece 2 as shown in FIG. The protective sheet 6 has a shape that substantially covers the joint A of the sleeper piece 2, covers the reinforcing members 25, 25 from the ends, and is fixed by winding an adhesive tape 60 around the ends of the protective sheet 6.

  Next, a method for laying a track branch using the long sleeper 1 will be described. In the following description, a case where a double track ground track having a branch track is transferred to an elevated track (see FIG. 1) having a similar branch track will be described as an example. In addition, the ground track of the relocation source will be the ballast track, and the elevated track of the relocation destination will be the slab track.

  As shown in FIG. 7, the ground track 7 as a transfer source has two rows of main tracks 71 and 72 laid on a long sleeper 74 laid on the ballast roadbed 70, and further branches the main tracks 71 and 72 together. A track 73 is laid. The sleeper tree 74 is formed by joining three sleeper tree pieces 74a, 74b, and 74c. The process of transferring the double track ground track 7 having such a branch track 73 to the elevated track 8 is performed according to the following procedure.

  First, an initial process associated with relocation is performed. In the initial step, as shown in FIG. 7, the elevated portion 80 is constructed on the elevated land adjacent to the ground track 7. Then, the slab road bed 85 is laid on the constructed elevated portion 80, and the rails R are laid by arranging the pillow pieces 3 described above.

As shown in FIG. 8, the sleeper piece 3 is carried into the elevated portion 80, which is a laying site, with the protective member 5 attached to the joint portion B. The pillow pieces 3 carried in are sequentially arranged on the slab road bed 85 with the protection member 5 mounted, so that the protection member 5 is positioned on the side where the adjacent track is laid as shown in FIG. Then, as shown in FIG. 8, a rail R is fastened to each sleeper piece 3 arranged via a tie plate T, and a main track 71 'is laid.
When laying the rail R, as shown in FIG. 9, the branch rail S <b> 1 formed of a tong rail (Lead rail) and a lead rail connected to the branch track is also laid at the same time.

  Next, as shown in FIG. 7, the main track 71 on the ground is separated leaving the transfer portion, and the separated rail is connected to the main track 71 ′ of the elevated portion 80 as the transfer destination. As a result, the main track 71 that has been operated on the ground track 7 is moved to the main track 71 ′ of the elevated section 80 and can be operated. Thereafter, as shown in FIG. 7, the main track 71 and the branch track 73 laid on the ground track 7 are removed. With the above procedure, the initial process of laying the track branch is completed.

In the state where the initial process is completed, as shown in FIG. 7, the operation is performed by the main track 71 ′ of the elevated portion 80 and the main track 72 of the ground track 7. In this state, the sleeper piece 3 laid on the main track 71 'is still attached with the protective member 5, and the joint B of the sleeper piece 3 is removed from the rainwater during the period until the adjacent elevated part is constructed. It protects against dust and dust and prevents fatigue of the joint B.
The sleeper piece 2 connected to the sleeper piece 3 is stored in an appropriate place until a later-described expansion process is performed.

  Subsequently, an extension process following the initial process is performed. In the expansion process, as shown in FIG. 10, the elevated portion 81 is constructed adjacent to the existing elevated portion 80 on the removed site. When the elevated portion 81 is constructed, the slab roadbed 86 is laid and the stored pillow piece 2 is carried in.

  Next, the pillow piece 2 carried in is joined to the pillow piece 3 laid on the main track 71 ′. First, the protective member 5 attached to the laid pillow piece 3 is removed. That is, the wire (fastening member) K fixing the protective member 5 is cut and removed, and the protective member 5 is removed from the joint B of the sleeper piece 3 (see FIGS. 8 and 10). Moreover, the protective sheet 6 attached to the pillow piece 2 is removed (see FIG. 6).

  Subsequently, as shown in FIGS. 10 and 11, the sleeper pieces 2 are sequentially arranged on adjacent tracks so that the joints B of the sleeper pieces 3 and the joints A of the sleeper pieces 2 face each other. And a resin adhesive is apply | coated to the joining surface of the junction part A of each pillow piece 2, 3, and the junction part B, and the junction part (fitting part) A and the junction part (fitting part) B are fitted. At this time, the unique numbers assigned to the pillows 3 and 2 are made to coincide.

  And as shown in FIG. 11, the front-end | tip part is addressed so that the junction part B may be pinched | interposed by the reinforcement members 25 and 25 of the junction part A from both sides. Then, by gently tapping the end of the sleeper piece 2 toward the sleeper piece 3, the lateral positions of the joints A and B are performed by the reinforcing members 25 and 25, and the inclined surface 12 and the inclined surface 32 come into contact with each other. The joints A and B are fitted while the joints A and B are positioned in the vertical direction.

  When the joint portions A and B are fitted, the inclined surfaces 12 and 32 are brought into close contact with each other. Further, the reinforcing member 20 provided on the pillow piece 2 is fitted into the step 34 of the pillow piece 3, and the reinforcing member 20 provided on the pillow piece 3 is fitted into the step 13 of the pillow piece 2. The reinforcing members 25 and 25 are fitted into the step portions 35 and 35 so as to sandwich the joint portion B from both sides.

After fitting the joints A and B, the plug is driven as shown in FIG. First, a resin adhesive is applied to the plug 40 and the plug 40 is driven into the two plug holes 16 of the pillow piece 2 and the two openings 21 of the reinforcing member 20. Further, a resin adhesive is applied to the plugs 27 and the plugs 27 are driven through the openings 26 of the reinforcing member 25.
Through the above procedure, the sleeper pieces 2 and 3 are joined to complete the long sleeper 1.

  As shown in FIGS. 12 and 13, the joined long sleeper 1 has a sleeper 10 and a sleeper 30 connected to each other at a substantially central portion in the longitudinal direction by joints A and B, and the reinforcing members 20 and 20 on the upper and lower surfaces. The reinforcing members 25 and 25 on both side surfaces are flush with the surfaces of the sleepers 10 and 30.

  In addition, since the plugs to be driven into the joints A and B are made of synthetic wood made of the same material as the pillows 10 and 30, the plugs are driven into the sleepers 10 and 30 after the plugs are driven and the resin adhesive is cured. Integrate with and fix. In this embodiment, an epoxy-based adhesive is used as the resin adhesive, which is cured in about 10 to 15 minutes, and the embedding is fixed integrally with the sleeper.

Thereby, even if the branching rail is located at the joints A and B, it is possible to drive in a fastening member (screw nail) for fixing the rail and the tie plate while maintaining the joint strength.
Moreover, since the lower surface of the sleepers 10 and 30 and the reinforcing member 20 are flush with each other, even in a laying structure where the distance between the lower surface of the sleeper trees and the slab surface is 20 to 30 mm, such as a slab track, the laying is performed without any trouble. It becomes possible.

  After the sleeper piece 2 is joined to the sleeper piece 3 as shown in FIGS. 13 and 14, and the long sleeper 1 is formed, the rail R is fastened to the sleeper piece 2 to complete the main track 72 '. At this time, as shown in FIG. 15, a branch rail S1 formed of a tongrail and a lead rail connected to the branch track is also laid simultaneously.

  Next, as shown in FIG. 14, the main track 72 left on the ground is separated leaving the transfer portion, and the separated rail is connected to the main track 72 ′ of the elevated portion 81 as a transfer destination. As a result, the main track 72 that has been operated on the ground track 7 is moved to the main track 72 ′ of the elevated portion 81 and can be operated. By the above procedure, the process of expanding the track branching section is completed.

  In the state where the expansion process is completed, as shown in FIGS. 14 and 15, the sleeper pieces 2, 3 of the part where the branch track is laid are already joined and integrated to form the long sleeper 1, and the elevated part transferred The operation is performed by 8 main track 71 'and 72'.

  Then, a branch part laying process is performed. In this step, as shown in FIG. 15 and FIG. 1, a branch track S2 that connects the branch rails S1 formed by the tongrel and lead rails is laid between adjacent main track 71 'and 72'. . As described above, since the joined long sleeper 1 has a flush surface, the rail of the branch track S2 can be fastened to any part including the joints A and B.

  Through the above procedure, as shown in FIG. 1, the track branching section S is transferred from the ground track 7 to the elevated track 8, and finally, the separated main track 72 left on the ground track 7 is moved as shown in FIG. By removing, the laying of the series of track branch portions S is completed.

  Thus, according to the track branching portion laying method of the present invention, when the adjacent main track is laid in parallel with the existing main track, another sleeper strip 2 is connected to the existing sleeper strip 3. The length of the track can be increased, and the track branch can be laid using the existing main track as it is. Further, the sleeper pieces 2 and 3 can be joined very easily and sufficient joining strength can be obtained, and the rail can be fastened at any part of the surface of the joined long sleeper 1.

  Therefore, when laying a branch track between adjacent main tracks, it is not necessary to replace the sleepers of existing main tracks or to prepare and join many sleeper pieces of different lengths. Thus, it is possible to efficiently lay the track branch portion in a short time.

  In the above-described embodiment, the laying of the track branching portion when moving the ground track in operation to the elevated track has been described. However, the present invention is not limited to such an example, and the ground track in operation is different from the above. It can be applied to the case where the main line track is increased and the track branching section is laid while continuing the operation of the train, such as when relocating to a place, and the above-described excellent effects are exhibited.

Moreover, the laying method shown by the said embodiment is an example, and does not limit the laying order of an elevated part and the removal order of a ground track.
Further, in the above-described embodiment, the configuration in which the branch track is provided in the two rows of main track is described, but the number of sleeper pieces to be connected is increased also in the track branching portion in which the branch track is provided in the main track of three rows or more. Therefore, it can be laid similarly. Further, the branching unit is not limited to the shisa crossing but can be similarly applied to other branching forms.

In the above-described embodiment, the sleeper wood piece 3 to which the protective member is attached is preliminarily laid, and then the sleeper wood piece 2 is joined to the sleeper wood piece 3. However, the sleeper wood piece to be laid first can be replaced. It is. That is, it is also possible to previously lay the pillow piece 2 to which the protective member is attached and then join the pillow piece 3 to the pillow piece 2. Moreover, the shape of the joining part (fitting part) of the sleeper pieces 2 and 3 is not limited to the structure of the above embodiment, and other joining structures may be adopted as long as the joining strength is ensured. Is also possible.

  Moreover, in the said embodiment, although the junction part A and B of the sleeper pieces 2 and 3 employ | adopted the structure which becomes flush | planar with the surface of the sleeper trees 10 and 30, it enabled it to use suitably also for a slab roadbed etc. The present invention is not necessarily limited to such a configuration.

  For example, in the joint portions A and B, only the upper surface may be flush with the sleepers 10 and 30, and both side surfaces and the lower surface may protrude from the surfaces of the sleepers 10 and 30. In particular, in a configuration in which both side surfaces and the lower surface protrude from the surface of the sleeper trees 10 and 30, by applying to a ballast road bed, the road bed resistance in the longitudinal direction of the sleeper tree can be increased, and the displacement of the sleeper tree is effectively prevented It becomes possible to prevent.

It is a top view which shows the track | orbit branch part which concerns on embodiment of this invention. (A) and (b) are exploded perspective views of one sleeper piece of a long sleeper employed in the track branching portion shown in FIG. 1, and (c) is a perspective view of the sleeper piece. It is a partial expansion perspective view of the reinforcement member employ | adopted as the pillow piece of FIG. (A) is an exploded perspective view of the sleeper piece used in pairs with the sleeper piece shown in FIG. 2, and (b) is a perspective view of the sleeper piece. (A), (b) is a perspective view which shows the procedure which attaches a protection member to the pillow piece shown in FIG. It is a perspective view which shows the state which covered the protective sheet on the pillow piece shown in FIG. It is explanatory drawing which shows the initial step of the laying method of a track branch part at the time of moving the ground track which has a track branch part shown in FIG. 1 to an elevated track. It is a perspective view which shows the main track | orbit laid in the elevated part in the initial process shown in FIG. It is a top view which shows the main track | orbit laid in the initial stage process shown in FIG. It is explanatory drawing which shows the extension process following the initial process of the laying method of the track | orbit branch part of this invention. It is a perspective view which shows the connection procedure of the pillow pieces in the expansion process shown in FIG. It is a perspective view which shows the implantation | striking procedure of a plug at the time of the connection of the pillow pieces shown in FIG. It is a perspective view which shows the state which connected the pillow pieces in the expansion process shown in FIG. It is explanatory drawing which shows the state which the expansion process was completed in the laying method of the track | orbit branch part of this invention. It is a top view which shows the completion state of the extension process shown in FIG.

Explanation of symbols

1 Long sleeper 2, 3 Pillow 5 Protective members 71, 72, 71 ', 72' Main track A, B Joint (fitting part)
R Rail S Track branch S2 Branch track

Claims (5)

  Two rails are combined to form a main track, a plurality of the main tracks are provided on a plurality of long sleepers, and a branch track that crosses the main tracks is a long sleeper. In the orbital branch provided above, the long sleeper tree is configured by joining two or more sleeper pieces, and the joint part of the sleeper pieces is provided with a fitting part that fits to each other. The pieces are joined and integrated in a state where the fitting portions are fitted to each other, and the joint portions of the sleeper pieces are located between the main track and the joint portions of the sleeper pieces are An orbit branching portion arranged in a line.   The track branching portion laying method according to claim 1, wherein a sleeper piece corresponding to the track is sequentially arranged at a planned route of one main track of a plurality of rows of main tracks, and An initial process of fastening the rail to complete the main track, and a sleeper piece of the existing track and a sleeper piece arranged while sequentially placing the sleeper pieces corresponding to the track on the planned track laying site adjacent to the existing main track An extension process to join the joints with the pieces one after another, fasten the rails on the joined sleeper pieces to complete the track, and lay a branch track between the main tracks that are laid next to each other After the initial process is constructed, a main track is expanded while joining and extending the sleeper pieces by the extension process, and the branch section laying process is performed, and a plurality of main lines are formed. Laying method of the track bifurcation, characterized in that laying the track branch section having a branch track to crossing the road and the mainline track each other.   The track branching section according to claim 1, wherein the main track is provided in two rows on a plurality of long sleepers, and further, a branch track that crosses the main tracks is provided on the long sleepers, A long sleeper is a method of laying an orbital branch that is formed by joining two pieces of sleeper, and the sleeper pieces corresponding to the orbit are sequentially placed on the planned construction site of one main track. An initial step of fastening a rail to a piece to complete the main track, and a pillow piece arranged in sequence with the sleeper pieces corresponding to the track on the planned track laying site adjacent to the existing main track and the existing track Joints are sequentially joined to the sleeper pieces, and a branch track is laid between the extended main track and the extension process to complete the track by fastening a rail on the joined sleeper piece. Kibe laying process and laying method of the track bifurcation and having a.   During the period until a sleeper piece to be laid on an adjacent track is joined to a sleeper piece laid on an existing track, a protective member is attached to the joint portion of the sleeper piece laid on the existing track. The method for laying a track branching portion according to claim 2 or 3.   5. The unique code indicating at least one of the set or the joining order is preliminarily attached to a set of sleeper pieces constituting the long sleeper, according to claim 2. How to lay the track branch.

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