JP2018178441A - Track structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a track structure constituted in connection with track blocks made of concrete in the track direction, on which rails can be mounted at any time without being influenced by the weather, on which the rails can be reliably fixed while the noises due to vibration can be prevented, which makes the removal operation of filled synthetic resin easy during exchange of rails and synthetic resin for filling, and which enables reduction of operation time and makes rail mounting operation easy.SOLUTION: The track structure is configured in such a way that a rail 4 is fixed on a concave groove 29 of a track block 2 via a rail fastening device 30 including a bolt 35, and a head part 351 of the bolt 35 is inserted into an inner space 51 of a pipe 5 with an upper top lid 55, and filler 6 is filled into the concave groove 29, and the rail fastening device 30 and the pipe 5 with the upper top lid 55 are sealed inside the filler 6.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a track structure in which a plurality of concrete blocks are connected in a track direction and fastened and integrated with a PC steel rod.

  Conventionally, a track structure in which a plurality of concrete track blocks are integrated is adopted as a combined track for crossing roads and trams because the track settlement is small and maintenance is easy. This track structure comprises two concave grooves for laying rails in the track direction, and connects a plurality of concrete track blocks having insertion holes formed in the track direction in the track direction, and in the connected state A PC steel rod is inserted into the communicating insertion hole, and both ends of the PC steel rod are fastened by nuts.

  And, such a track structure is to prevent an injury due to a pedestrian's foot or a wheel such as a bicycle fitting into a recessed groove after laying a rail or an accident due to an obstacle such as a branch of a tree getting into Also, rubber chutes and rubber shock absorbers have been installed to reduce noise due to rail vibrations.

  However, the track structure using the rubber chute and the rubber shock absorbing material requires a lot of cost and time to install the rail and the track because the number of parts is large, and the rail is exposed because most of the rail is exposed. There was a problem that it was easy to deteriorate such as corrosion.

  As a technique for solving such problems, as shown in FIG. 7, a vibration absorbing plate 92 is installed on the bottom of the recess 91 for rail installation of the concrete slab 90 which is the foundation of the track. A technique has been proposed in which a polyurethane resin 93 is filled and cured after mounting the rail 100, and the rail 100 is fixed with the polyurethane resin 93 (Patent Document 1). A pipe 94 is embedded in the polyurethane resin 93 as a reduction in the amount of use of the polyurethane resin 93 and as a storage tube for electric wires and the like.

  Further, as shown in FIG. 8, after the track pad 97 is installed on the bottom of the rail setting recess 96 of the track foundation 95 and the rail 100 is mounted on the track pad 97, a plurality of spaces are formed in the recess 96. A technique has been proposed in which resin blocks 98 divided into pieces are installed, and resin 99 is injected into and bonded to the gaps between blocks 98, 98, between blocks 98 and recesses 96, and between blocks 98 and rails 100 (see Patent Document 2).

  Further, as shown in FIG. 9, the track pad 82 is installed on the bottom of the recess 81 for rail installation of the track foundation 80, the rail 100 is mounted on the track pad 82, and the rail 100 is tracked by the bolt 83. A technique has been proposed in which resin 85 is filled into the space in the recess 81 and hardened after being fixed to the recess 81 of the track foundation 80 by rail fastening means consisting of a plate spring 84 etc. fixed to the base 80 Literature 3).

Patent No. 3824948 gazette Patent No. 5346183 gazette Patent No. 5292011 gazette

  However, in the prior art described in Patent Document 1, the rail is fixed only by the polyurethane resin, and the resin can not be filled on a rainy or snowy day, so the rail can not be installed. was there. In addition, the polyurethane resin may not reach to the details at the time of filling, and in such a case, there is a problem that the rails can not be securely fixed and noises are generated due to vibration. Furthermore, there is a problem that the removal operation of the polyurethane resin is not easy at the time of replacing the rail or the polyurethane resin, and a long time is required.

  Further, in the prior art described in Patent Document 2, since a plurality of resin blocks are used, there are many parts and moreover, for reliable fixation of the rails, the narrow gaps are filled with the synthetic resin accurately. There is a problem that the work at the construction site is not easy.

  Further, in the prior art described in Patent Document 3, there is a problem that the resin removing operation is not easy at the time of replacing the rail or the resin, and a long time is required. In addition, since the amount of the resin to be filled is large, it takes time to cure the resin and the cost is high.

  Therefore, it is an object of the present invention to enable installation of rails at any time regardless of the weather in a track structure configured by connecting track blocks made of concrete in the track direction. Another object of the present invention is to secure the rails securely and to prevent the generation of noise due to vibration. Another object of the present invention is to make it easy to remove the filled synthetic resin at the time of replacing the rails and the synthetic resin to be filled, and to shorten the working time. Another object is to make the installation work of the rails easy. Another object of the present invention is to reduce the amount of resin used and shorten the curing time of the resin and to reduce the cost.

  The present invention for solving the above problems is a track structure including a plurality of track blocks connected in a track direction for laying a rail, wherein the rail is a bolt in a concave groove of the track block. And the head of the bolt is inserted into the internal space of the pipe with the upper lid, the recess is filled with the filler, and the rail fastener and the pipe with the upper lid are enclosed in the filler. It is an orbital structure characterized by being.

  In the above track structure, a wrench hole drilled from the upper surface is formed in the head of the bolt, and the head of the bolt is fitted in the internal space of the pipe with the upper lid. It is a structure.

  Further, in the above track structure, a wire is installed along the side surface of the recessed groove.

  In the above track structure, a notch is formed on the side of the concave groove at the upper end of the clip of the rail fastening device, and the wire is installed in the space formed by the notch. It is.

  Further, in the above track structure, the tip of the wire is installed in a wire pipe.

  According to the present invention as described above, the rails can be installed at any time regardless of the weather. In addition, it is possible to securely fix the rails and to prevent the generation of noise due to vibration. In addition, it is possible to facilitate the work of removing the filled synthetic resin at the time of replacing the rails and the filled synthetic resin, and to shorten the working time. In addition, it has become possible to facilitate the installation work of the rails. In addition, it is possible to reduce the cost by reducing the amount of resin to be filled and shortening the curing time of the resin.

One embodiment of the present invention track structure partially enlarged sectional view Track structure of one embodiment of the present invention The present invention is a cross-sectional view of an embodiment with a track structure wire A side view of one embodiment of the present invention with a track structure wire Another embodiment of the present invention containing a track structure wire One embodiment of the present invention with a track structure wire Conventional track structure sectional view Conventional track structure sectional view Conventional track structure sectional view

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The track structure 1 includes a plurality of track blocks 2 connected in the track direction. As shown in FIGS. 1 and 6, the track block 2 is a reinforced concrete block formed in a square in plan view and side view.

Although not shown, the track block 2 penetrates in the track direction and has an insertion hole for inserting a PC steel rod. The insertion hole is linearly connected across both ends in the track direction in a state in which the plurality of track blocks 2 are connected in the track direction, and a pipe made of synthetic resin such as vinyl chloride is connected to the connected insertion hole. The PC steel rod is inserted into the pipe and inserted into the pipe, and both ends of the PC steel rod projecting from the outer end in the orbital direction of the track block 2 are fastened from both ends using nuts. A plurality of track blocks 2 connected in a direction are connected and fixed to form a track structure 1. Further, the PC steel rod connecting the track block 2 is constituted by one PC steel rod having a length extending to both ends of the track block 2 connected in the track direction according to the length of the track structure 1 in the track direction, etc. Although it may be possible, a plurality of PC steel rods may be connected and fixed in the insertion hole by a coupler. Further, as shown in FIG. 4 and FIG. 5, the connection of the track block 2 can be reinforced by a plate 23 fixed to the side surface 21 of the track block 2 by bolts 22.

  Although not shown, the track block 2 can be installed on a ballast track formed on the track using track stabilizers such as synthetic resin. Moreover, it is not limited to this structure, The track block 2 can employ | adopt a well-known structure the installation surface, such as installing on shock absorbing materials, such as a mortar provided on the base-bed concrete.

  On the upper surface 25 of the track block 2 are formed two recessed grooves 29 for laying the rail 4 in the track direction, and a track pad installed on the release sheet 31 covering the bottom surface 291 of the recessed groove 29 and the lower side surface 292 Rails 4 are installed on top of 32. A flexible synthetic resin sheet 39 is provided between the track pads 32 on the release sheet 31. The rail 4 is fixed to the track block 2 by means of a rail fastening device 30 which comprises a bolt 35, a spring 36 and a clip 37 which are coupled to the insert 34 embedded in the track block 2. The position of the upper end of the release sheet 31 is not particularly limited, but may be about the height of the upper end of the clip 37. Although not shown, a track pad may be directly installed on the bottom surface 291 of the recessed groove 29 without using a release sheet.

As shown in FIGS. 1 and 2, the head 351 of the bolt 35 has a wrench hole 359 such as a hexagonal hole drilled from the upper surface, as shown in FIGS. 1 and 2. It is done. Further, a coil spring is used as the spring 36, and the screw portion 352 of the bolt 35 is insertable into the inner space 361. The clip 37 for locking the rail 4 is formed with a bolt through hole 371 penetrating in the vertical direction of the substantially rectangular parallelepiped main body 370 and a locking projection 373 protruding from the upper end in the rail direction ing.

Then, the clip 37 is placed with the main body 370 placed on the release sheet 31 and the locking projection 373 placed on the bottom 41 of the rail 4, and the spring 36 is placed on the clip 37, The head 351 of the bolt 35 is locked to the upper end of the spring 36, and the screw portion 352 of the bolt 35 is screwed into the insert 34 through the inner space 361 of the spring 36 and the bolt through hole 371 of the clip 37 The rail 4 is fixed to the track block 2.

An upper lidd pipe 5 is installed on the upper surface of the spring 36 with the upper and lower ends opened and an internal space 51 and the upper opening is closed by the upper lid 55, and the head 351 of the bolt 35 is installed in the internal space 51. It is inserted. The pipe 5 and the upper lid 55 may be integrally configured, but may be detachable. The material of the pipe 5 and the upper lid 55 is not particularly limited, but a synthetic resin such as vinyl chloride which can be easily broken as described later is preferable. The pipe 5 and the upper lid 55 may have a hole as long as the penetration of the filling material 6 into the internal space 51 can be prevented, and a mesh-like member may be used.

Although the head 351 of the bolt 35 is configured to fit into the internal space 51 of the pipe 5 for ease of installation of the pipe 5, the head 351 of the bolt 35 is formed by drilling from the upper surface. Since the hole 359 is formed, the bolt can be loosened by operating the wrench from above the internal space 51 of the pipe 5. In addition, it is good also as a structure which a head does not fit with internal space, using the bolt in which wrench holes, such as a hexagonal hole, are not formed.

  The filling material 6 is filled in the concave groove 29 of the track block 2, and the bottom part 41 of the rail 4, the rail fastening device 30, the pipe 5 and the upper lid 55 are enclosed in the filling material 6. The filling height of the filler 6 is not particularly limited, but the flange way 200 side of the recessed groove 29 (right side of the rail 4 in FIG. 2) is filled with the filler 6 up to the lower part of the head 43 of the rail 4 And the opposite side (in FIG. 2, the left side of the rail 4), the filler 6 is filled up to the top of the head 43 of the rail 4, and the leg 42 of the rail 4 is also enclosed in the filler 6. Can do. In addition, on the opposite side to the flange way 200, it is preferable that the filling material 6 be filled so as to be flush with the upper surface 25 of the track block 2 in order to eliminate the step.

The filling material 6 has a function to prevent injury due to a pedestrian's foot or a wheel such as a bicycle fitting into the concave groove 29, a function to prevent an accident due to an obstacle such as a branch of a tree, etc. Have the ability to Further, since the rail 4 is fixed to the track block 2 by the rail fastening device 30, the filler 6 does not have to have the fixing function of the rail 4, but also has the fixing function of the rail 4.

  The material of the filler 6 is not particularly limited as long as it has plasticity and solidifies after being filled and integrated, but synthetic resins such as polyurethane resin, rubber and the like can be used. The filler 6 preferably has elasticity. Also, various known additive materials such as glass fiber and carbon fiber may be added to the synthetic resin or rubber.

  As shown in FIGS. 3 to 5, the track structure 1 can be configured such that the wire 7 for removing the filler 6 is placed in the recessed groove 29. The wire 7 is installed along the side surface 292 of the recessed groove 29 as shown in FIG. 3, and both ends are raised upward as shown in FIG. 4 and FIG. It is installed in a U-shaped shape. With such a configuration, the filler 6 solidified by pulling up both ends of the wire 7 can be peeled off from the side surface 292 of the ditch 29 or the filler 6 can be cut, and the filler 6 can be easily removed. It becomes. In order to ensure the removal of the filler 6, it is preferable that the horizontal side 71 of the wire 7 be installed at a height overlapping with the upper end portion of the release sheet 31 in a side view. The wire 7 may be installed for each track block 2 or may be installed across a plurality of track blocks 2.

  As shown in FIG. 3, the release sheet 31 is laid to the height of the upper end of the clip 37, and the notch portion 377 is formed on the side surface 292 of the concave groove 29 at the upper end of the clip 37. The horizontal side 71 of the wire 7 can be installed in the space 299.

  The distal end of the longitudinal side 72 of the wire 7 may be linear, but as shown in FIG. 4, it is preferable to form an annular ring 75 to make the wire 7 easy to pull. Further, as shown in FIG. 5, it is preferable that the tip of the longitudinal side 72 of the wire 7 be installed in the wire pipe 77. The material of the wire pipe 77 is not particularly limited, but a synthetic resin such as vinyl chloride which can be easily broken as described later is preferable. Although not shown, it is preferable to provide a lid at the upper opening of the wire pipe 77 so that the filling material 6 does not intrude into the wire pipe 77.

  Next, a method of installing the track structure 1 will be described. First, a plurality of track blocks 2 are continuously installed, and connected and fixed using a PC steel rod, a plate 23 or the like. The mold release sheet 31 is laid in the recessed groove 29, the track pad 32 is placed at the position where the insert 34 is on the mold release sheet 31, and the rail 4 is placed on the track pad 32. Next, the locking projection 373 of the clip 37 is placed on the bottom 41 of the rail 4, the spring 36 is placed on the clip 37, and the threaded portion 352 of the bolt 35 is the through hole for the inner space 361 of the spring 36 and the clip 37. Insert and pierce 371 and screw into insert 34. Thus, the rail 4 is fixed to the track block 2. Then, the head 351 of the bolt 35 is inserted into the internal space 51 of the pipe 5 to install the pipe 5 on the spring 36, and the upper opening of the pipe 5 is closed by the upper lid 55. Then, the filler 6 in a fluid state is filled in the recessed groove 29 to solidify the filler 6. Even if the filling material 6 is not filled, the rail 4 is fixed to the track block 2 so that the train can be operated even in that state, and it is necessary to forcibly fill the filling material 6 when it rains, etc. There is no

  When the wire 7 is installed, the notch portion 377 is formed on the side surface 292 side of the concave groove 29 at the upper end of the clip 37 and the clip 37 before the filling material 6 is filled. Lay the side 71 on both sides and raise both ends. When the wire pipe 77 is used, the end of the longitudinal side 72 of the wire 7 is covered with the wire pipe 77. Then, the filler 6 in a fluid state is filled in the recessed groove 29 to solidify the filler 6.

  Next, a method of replacing the rail 4 will be described. First, the filler 6 located above the pipe 5 is removed using a cup grinder or the like, the upper lid 55 of the pipe 5 or the upper part of the pipe 5 is removed, and the filler 5 is not filled. The internal space 51 is opened. The head 351 of the bolt 35 is not buried in the filler 6, and the head 351 of the bolt 35 is formed with a wrench hole 359 such as a hexagonal hole drilled from the upper surface. A wrench is inserted into the internal space 51 of 5 and the bolt 35 is loosened to unscrew the screw portion 352 from the insert 34 and release the fixation of the rail 4 by the bolt 35 and the rail fastening device 30. Then, the filler 6 is removed, the spring 36, the clip 37 and the like are also removed, and the rail 4 is taken out of the recessed groove 29.

When the wire 7 is installed, after removing or removing the bolt 35, the filler 6 in the vicinity of the end of the longitudinal side 72 at both ends of the wire 7 is removed using a cup grinder or the like, or Further, the upper portion of the wire pipe 77 is removed, and both ends of the wire 7 are pulled up to peel off the filler 6 from the side surface 292 of the concave groove 29 or cut the filler 6 to remove the filler 6.

According to the track structure of the present invention, it is possible to install rails at any time regardless of the weather, and to shorten the working time for civil works such as track installation and rail replacement, and construction work. Is possible and useful in the railway business.

Reference Signs List 1 track structure 2 track block 200 flange way 29 recessed groove 30 rail fastening device 31 release sheet 32 track pad 34 insert 35 bolt 359 wrench hole 36 spring 37 clip 377 notch 4 rail 5 pipe 55 lid 6 filler 7 Wire 77 Wire Pipe

Claims (5)

  A track structure comprising a plurality of track blocks connected in a track direction for laying a rail, wherein the rail is fixed to a recessed groove of the track block by a rail fastening device including a bolt, the bolt A track structure in which a head portion of the pipe is inserted into an inner space of the upper lidded pipe, the recessed groove is filled with a filler, and the rail fastening device and the upper lidded pipe are enclosed in the filler. The track structure according to claim 1, wherein a wrench hole drilled from the upper surface is formed in the head of the bolt, and the head of the bolt is fitted with the internal space of the pipe with the upper lid. .   The track structure according to claim 1 or 2, wherein a wire is installed along a side surface of the recessed groove. The track structure according to claim 3, wherein a notch is formed on the side of the concave groove of the clip upper end of the rail fastening device, and the wire is installed in a space formed by the notch.   The track structure according to claim 3 or 4, wherein a tip portion of the wire is installed in a wire pipe.

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