JP2008297791A - Felloe path structure of grooved slab for street track, and method of installing the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a felloe path structure of a track for street cars, which contributes to a shortening of a construction period, noise and vibration reduction, and good maintenance of road environment and landscapes, and is excellent in durability and construction cost efficiency, and also to provide a method of installing the felloe path structure on a road. <P>SOLUTION: The felloe path structure has: a concrete slab 9 formed with a groove; a traveling rail 1 laid in the groove; spacers which are each arranged between an inside wall of the groove and a base portion of the traveling rail, for positioning the traveling rail in the groove; packings 5, 5a which each consist of an outside shell member having a cross sectional shape that makes intimate contact with a side surface of the traveling rail, and elastic filler with which the shell member is filled and having vibration preventive properties and sound insulation properties imparted thereto, and are arranged on both sides of the traveling rail and bonded to the same; and sheathing boards 7, 7a which are each rigidly arranged between the inside wall of the groove and the packing. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a ring rail structure of a tramway for light rail transit (LRT), that is, a light rail traffic, and a method for installing the same, and also relates to a packing for a rail for use in a tramway. In more detail, the construction period can be shortened, the noise and vibration can be reduced, the road environment and the landscape can be maintained well, and the track structure of the tramway track and the excellent in terms of durability and construction cost. It relates to the installation method. The present invention also relates to a track packing for a tramway track.

  Recently, LRT (Light Rail Transit), which is a next-generation type tram, has attracted attention, and there has been a demand for a tramway suitable for this LRT and its installation method. The conditions of the tramway suitable for LRT are that the construction period is short, the noise and vibration to the surroundings are small, the road environment and landscape are not destroyed, the durability is good, the construction cost is realistic, etc. There is a point. A trajectory that satisfies these conditions as much as possible is desirable.

The following Patent Document 1 is known as a technique relating to such a trajectory. In Patent Document 1, a recess for accommodating the traveling rail and the derailment prevention rail is formed on the upper surface of the base portion of the track, and a vibration absorbing plate and an adjustment plate for adjusting the height dimension are formed on the bottom surface of the recess. A rail installation method and an installation structure in which a traveling rail is arranged and polyurethane is injected and cured in a recess in which the traveling rail is disposed are described.
Japanese Patent No. 3824948

  The definitive tramway track structure and its installation method that satisfy all the conditions of the tramway trajectory suitable for the LRT as described above are still under development. Even in the rail installation method and the installation structure described in Patent Document 1, there is a problem that the process of injecting the polyurethane into the recess in which the traveling rail is disposed and the process of curing the polyurethane takes relatively time and effort. That is, the amount of polyurethane injected must be appropriately adjusted to accurately adjust the position of each part of the upper surface of the polyurethane, and the work content has become difficult. Moreover, it took time for the injected polyurethane to harden, and during that time, the next operation could not be performed.

  Therefore, the present invention can shorten the construction period, reduce noise and vibration, maintain a good road environment and landscape, and is excellent in terms of durability and construction cost, and its installation method. The purpose is to provide.

  In order to achieve the above object, the road surface road ring road structure of the present invention includes a concrete slab formed with a concave groove, a running rail laid in the concave groove, an inner wall of the concave groove, and the A spacer for positioning the traveling rail in the concave groove, and a cross-sectional shape of an outer shell member arranged in close contact with a side surface of the traveling rail. A packing in which an elastic filler having vibration proofing and sound insulating properties is filled inside the outer shell member, the packing disposed on both side surfaces of the traveling rail, the inner wall of the concave groove, and the It has a sheet plate fixedly arranged between the packings.

  Further, in the above-described ring-shaped road structure of the road surface track, a track pad disposed between the bottom surface of the concave groove and the base portion of the traveling rail, for blocking vibration and sound propagation, and the bottom surface of the concave groove It is preferable to have a sound-absorbing material that is disposed between the base of the traveling rail and absorbs traveling sound.

  Moreover, in the above-described road surface structure of the road surface track, it is preferable that the track pad and the sound absorbing material are alternately arranged at regular intervals along the longitudinal direction of the traveling rail.

  Moreover, in the ring-shaped road structure of the road surface track described above, it is preferable that the spacer, the seal plate, and the packing are arranged on both side surfaces of the traveling rail.

  Further, in the above-mentioned road surface ring-shaped road structure, the outer shell member is a hollow pipe-shaped member made of an elastic material, and the elastic filler is a room temperature curable liquid rubber made of the outer shell member. It is preferable that the resin is cured at room temperature after being filled in.

  In the road surface track installation method of the present invention, the traveling rail is disposed between the step of placing the traveling rail in the recessed groove formed in the concrete slab, and the inner wall of the recessed groove and the base of the traveling rail. A spacer for positioning the inside of the concave groove, and a cross-sectional shape of the outer shell member is a shape that can be in close contact with the side surface of the running rail, A step of adhering and arranging packing filled with an elastic filler having sound insulation properties on both side surfaces of the traveling rail, and a step of fixing and arranging a sealing plate between the inner wall of the concave groove and the packing. It is what you have.

  Further, in the road surface track installation method described above, a track pad for blocking vibration and sound propagation on the bottom surface of the concave groove, and a traveling sound before the step of disposing the traveling rail in the concave groove. Forming a ruled line for disposing a sound absorbing material for absorbing sound, and the track pad and the sound absorbing material on the bottom surface of the groove at regular intervals along the longitudinal direction of the groove. It is preferable to have a step of alternately adhering to each other.

  In the road surface track installation method, the spacer, the sealing plate, and the packing are preferably arranged on both side surfaces of the traveling rail.

  Further, in the above road surface track installation method, the outer shell member is a hollow pipe-shaped member made of an elastic material, and the elastic filler includes a room temperature curable liquid rubber in the outer shell member. After filling, it is preferably cured at room temperature.

  The track packing according to the present invention is filled with an outer shell member made of an elastic material having a hollow pipe shape whose cross-sectional shape can be in close contact with the side surface of the running rail of the tramway for the tramway, and the inside of the outer shell member. And an elastic filler having vibration-proof and sound-insulating properties. The elastic filler is obtained by curing a room temperature curable liquid rubber filled in the outer shell member at room temperature.

  Moreover, in the above-mentioned track packing, it is preferable that the track packing is cut into a predetermined length.

  Since this invention is comprised as mentioned above, there exist the following effects. Since construction is performed using packing that can be manufactured in advance in the factory, the construction period can be greatly reduced. In addition, the packing can reduce noise and vibration when the train is running, and can maintain a good surrounding environment. In addition, since the need for a soundproof wall is eliminated, the landscape can be kept good. Furthermore, the durability of the tramway is good, and the construction cost can be reduced.

  Embodiments of the present invention will be described with reference to the drawings. FIG. 1 to FIG. 6 are diagrams showing each step of the method for installing the ring road structure on one side of the tramway of the present invention. FIG. 7 is a cross-sectional view showing a ring-shaped road structure of the tramway for which FIG. 6 is completed. 1 to 6 are cross-sectional views of a tram track taken along a plane perpendicular to the train traveling direction (longitudinal direction of the track). Hereafter, each process of the road surface track installation method of this invention is demonstrated along FIGS.

  In FIG. 1, the concrete slab 9 is formed with a concave groove 91 in which the traveling rail 1 can be accommodated. As the concrete slab 9, it is desirable to use a precast plate manufactured in advance in a factory including the shape of the concave groove 91 and the like. By using the precast plate, the accuracy of the shape dimension can be improved and the construction period can be shortened.

  The concrete slabs 9 are arranged and arranged at predetermined positions on the track site so that the concave groove 91 side is the upper surface. Then, a ruled line for arranging the track pad 2 and the sound absorbing material 3 is formed on the bottom surface of the concave groove 91. And after apply | coating an adhesive agent to the installation surface of the track pad 2 and the sound-absorbing material 3, these are spread | laid on the bottom face of the ditch | groove 91 according to a ruled line. The track pad 2 and the sound absorbing material 3 are alternately laid along the longitudinal direction of the concave groove 91 (longitudinal direction of the traveling rail 1). The track pad 2 and the sound absorbing material 3 are bonded and fixed on the bottom surface of the concave groove 91. The track pad 2 is for supporting the base of the traveling rail 1 so that the traveling surface (the top surface) of the traveling rail 1 is at a predetermined position, and at the same time, blocking vibration and sound propagation.

  In FIG. 1, the sound absorbing material 3 is displayed by cutting out a part of the track pad 2, but in actuality, the track pad 2 and the sound absorbing material 3 are arranged in the longitudinal direction of the groove 91 (FIG. 1 paper surface). (Along the vertical direction).

  The sound absorbing material 3 absorbs and reduces the traveling sound of the train and prevents the position of the track pad 2 from being shifted due to the vibration of the traveling rail 1 when the train travels. That is, the gap between the track pad 2 and the track pad 2 is filled with the sound absorbing material 3 to prevent the track pad 2 from being displaced. As the sound-absorbing material 3, a sponge-like foam can be used, and an open-cell foam is particularly preferable. The width of the track pad 2 and the sound absorbing material 3 is approximately the same as the width of the base of the traveling rail 1, and the length of the traveling rail 1 in the longitudinal direction is approximately 20 to 50 cm. In addition, the thickness of the sound absorber is made somewhat thicker than the track pad 2. And the traveling rail 1 is mounted on the track pad 2 and the sound-absorbing material 3, and it is set as a state like FIG.

  Next, as shown in FIG. 2, the spacer 4 is disposed between the inner wall of the concave groove 91 and the base of the traveling rail 1. The spacer 4 is preferably electrically insulating, and a standard spacer made of hard rubber or synthetic resin mixed with short fibers can be used. Further, as the spacer 4, a short high-rigidity spacer is disposed at a necessary location together with the fixed-length spacer. The high-rigidity spacers can be arranged at an appropriate interval, and the arrangement interval can be shortened in the curved portion of the track. As the material of the high-rigidity spacer, hard synthetic resin, ceramic, natural material cocoon, hard wood such as mulberry can be used. These spacers 4 can effectively prevent the horizontal position variation of the traveling rail 1 and improve the stability.

  Next, as shown in FIG. 3, the packings 5 and 5 a are inserted into the recessed grooves 91 so as to sandwich the side surface of the traveling rail 1. At that time, an adhesive is applied to the side surface of the traveling rail 1 and the surface of the packings 5 and 5a on the traveling rail 1 side. The packing 5 is disposed on the outer track side, and the packing 5a is disposed on the inner track side. The packing 5 and the packing 5a have different external shapes, but the internal structure is the same.

  The packing 5 and the packing 5a are filled with an elastic filler 52 having vibration proofing and sound insulating properties inside the outer shell member 51. The outer shell member 51 is made of hard rubber or the like, and is formed into a hollow pipe shape by extrusion molding vulcanization or mold molding vulcanization. The cross-sectional outer shape is a shape that can be in close contact with the side surface of the traveling rail 1. Inside the outer shell member 51, a mixture of a room temperature curable liquid rubber mixed with a filler having excellent sound insulation and vibration absorption properties such as a rubber chip is injected and cured as an elastic filler 52. It is cut into a length of a predetermined dimension to form packings 5 and 5a. Although the cutting length of the packings 5 and 5a can be set to an arbitrary length, it is generally preferably 2 to 3 m which is easy to handle.

  Next, as shown in FIG. 4, the packings 5 and 5 a inserted into the concave grooves 91 are brought into close contact with the side surface of the traveling rail 1, and the packings 5 and 5 a are pressed toward the traveling rail 1 by the plate-shaped lever 6. Adhesive is applied in advance to the contact surfaces of the packings 5 and 5a and the running rail 1, and the pressing by the lever 6 is continued until this has sufficient adhesive strength. When the packings 5, 5 a and the traveling rail 1 are bonded, a gap is generated between the back surface of the packings 5, 5 a and the inner wall of the groove 91.

  The cuff plates 7 and 7a are inserted into the gaps to bond and fix the entire track. However, the gap dimensions fluctuate due to dimensional errors of the concave grooves 91, and the thickness of the cuff plates 7 and 7a can be adjusted. Things are desirable. Prepare multiple types of thickness, and select the appropriate thickness plate 7, 7a from among them, or adjust the thickness by attaching a thin plate to the body of the plate 7, 7a To do. Alternatively, the thickness may be adjusted by injection as a structure in which liquid rubber or the like can be injected inside the cuff plates 7 and 7a. The thickness of the sealing plates 7 and 7a is such that each member is strongly pressed by the elasticity of the packings 5 and 5a when they are inserted into the gap and integrated with each other.

  As shown in FIG. 5, after the adhesive plates 7 and 7a have an appropriate thickness and an adhesive is applied to the back surface of the packings 5 and 5a and the inner wall of the concave groove 91, the back side of the packings 5 and 5a. The gap plates 7 and 7a are inserted into the gaps. The insertion of the plates 7 and 7a is performed quickly while the adhesive is slipping. The claw plate 7 is arranged on the outer rail side, and the cuff plate 7a is arranged on the inner rail side. The plate 7 and the plate 7a have the same configuration except for the shape of the upper end.

  When the plates 7 and 7a are inserted to the lowest position and the adhesive is solidified, the track is completed. This state is shown in FIG. As described above, the traveling rail 1 is accurately set in the position of the traveling surface by the track pad 2, and the position of the traveling rail 1 in the horizontal direction in the concave groove 91 is effectively prevented by the spacer 4. Can do. Since the traveling rail 1 is strongly supported from the side by the packings 5 and 5a and the sealing plates 7 and 7a, the traveling rail 1 can be effectively prevented from being displaced in the falling direction.

  Further, the packings 5 and 5a filled with the sound absorbing material 3 and the elastic filler 52 can effectively absorb and attenuate noise and vibration when the train travels, and can realize a tramway with less noise and vibration. In addition, since the members such as the packings 5 and 5a and the cuff plates 7 and 7a for constructing the tramway are pre-manufactured at the factory, the construction period can be greatly shortened. Since each of these members can be efficiently produced in the factory, the construction cost can also be reduced.

  In the embodiment shown in FIGS. 1 to 6, no adhesive is used when the spacers 4 and the like are arranged, but these members may be fixed with an adhesive. That is, the inner wall of the concave groove 91 and these members may be fixed with an adhesive, and between these members and between these members and the running rail 1 may also be fixed with an adhesive.

  Next, various modifications of the present invention will be described. FIG. 7 is a cross-sectional view showing a modification of the board of the tramway. In the plate 71, 71a in the tramway track of FIG. 7, a hollow portion is provided inside the plate. For this reason, the cuff plates 71 and 71a are easily expanded and contracted in the thickness direction, and the claw plates 71 and 71a having one thickness can cope with a wide range of gap lengths. Therefore, the construction can be performed with only one kind or a few kinds of squeezes 71 and 71a, the construction process can be simplified, and the construction cost can be reduced.

  FIG. 8 is a cross-sectional view showing another modification of the rail plate and packing of the tramway. In the rail plates 72 and 72a in the tramway track of FIG. 8, a hollow portion is provided inside the plate, and an engaging claw portion for preventing the barrier plates 72 and 72a from coming out is provided. The engaging claw portion is integrally fixed to the sealing plates 72 and 72a. In this case, an engagement concave portion that engages with the engagement claw portion is formed on the packing 5, 5 a side. In this modified example, the claw plates 72 and 72a are prevented from coming off by the engaging claws and the engaging recesses, so that the waking plates 72 and 72a can be prevented from coming out due to long-term vibration or the like.

  FIG. 9 is a cross-sectional view showing another modification of the board of the tramway. In the tramway track of FIG. 9, after the packings 5 and 5a are brought into close contact with the traveling rail 1 and bonded, a room-temperature curable liquid rubber is injected between the packings 5 and 5a and the inner wall of the groove 91 to be cured. Thus, the claw plates 73 and 73a are formed. When forming the inner rail side seal plate 73a, the mold rubber 8 is placed on the upper surface of the packing 5a to define the shape of the seal plate 73a. After the liquid rubber is injected and cured, the mold rubber 8 is removed. In this modified example, the cuff plates 73 and 73a are prepared by injecting liquid rubber at the construction site, so that any gap length can be accommodated, and it is not necessary to prepare a plurality of types of cough plates.

  As described above, the track for the tram according to the present invention is constructed using the packings 5 and 5a manufactured in advance in the factory, so that the construction period can be greatly shortened. Further, the packings 5 and 5a can reduce noise and vibration during traveling of the train, and can maintain a good surrounding environment. In addition, since the need for a soundproof wall is eliminated, the landscape can be kept good. Furthermore, the durability of the tramway is good, and the construction cost can be reduced.

  The embodiment of the present invention has been described above, but the present invention is not limited to this. Needless to say, the present invention can be modified without departing from the object and spirit of the present invention.

  ADVANTAGE OF THE INVENTION According to this invention, a noise and a vibration can be reduced, a road environment and a landscape can be maintained favorable, and the track | truck for streetcars which was excellent also in terms of durability or construction cost, and its installation method can be provided. In addition, the construction period of the tramway can be shortened.

It is sectional drawing which shows each process of the installation method of the track for trams of this invention. It is a figure which shows each process of the installation method of the track for trams. It is a figure which shows each process of the installation method of the track for trams. It is a figure which shows each process of the installation method of the track for trams. It is a figure which shows each process of the installation method of the track for trams. It is sectional drawing which shows the completed state of the track for trams. It is sectional drawing which shows the modification of the board of the track for trams. It is sectional drawing which shows the other modification of the board and packing of the track for trams. It is sectional drawing which shows the other modification of the board of the track for trams.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Traveling rail 2 Track pad 3 Sound absorbing material 4 Spacer 5, 5a Packing 6 Lever 7, 7a Seki plate 8 Type rubber 9 Concrete slab 51 Outer shell member 52 Elastic filler 71, 71a Seki plate 72, 72a Seki plate 73, 73a Seki Plate 91 groove

Claims (11)

A concrete slab (9) in which a concave groove (91) is formed;
A traveling rail (1) laid in the concave groove (91);
A spacer (4) disposed between an inner wall of the concave groove (91) and a base of the traveling rail (1), for positioning the traveling rail (1) in the concave groove (91);
An elastic filler having a cross-sectional shape of the outer shell member (51) that can be brought into close contact with the side surface of the traveling rail (1), and having vibration and sound insulation inside the outer shell member (51). Packing (5, 5a) filled with (52), the packing (5, 5a) disposed on both sides of the traveling rail (1),
An annular road structure of a road surface track having a seal plate (7, 7a) fixedly arranged between an inner wall of the concave groove (91) and the packing (5, 5a). The road surface ring-shaped road structure according to claim 1,
A track pad (2) disposed between the bottom surface of the concave groove (91) and the base of the traveling rail (1), for blocking vibration and sound propagation;
An annular road structure of a road surface track having a sound absorbing material (3) disposed between the bottom surface of the concave groove (91) and the base of the running rail (1) to absorb running noise. The road surface ring-shaped road structure according to claim 2,
The track pad (2) and the sound-absorbing material (3) are alternately arranged along the longitudinal direction of the travel rail (1) at regular intervals. The road surface track ring road structure according to any one of claims 1 to 3,
An annular road structure of a road surface track in which the spacer (4), the sealing plate (7, 7a) and the packing (5, 5a) are arranged on both sides of the traveling rail (1). It is a ring road structure of a road surface track given in any 1 paragraph of Claims 1-4,
The outer shell member (51) is a hollow pipe-shaped member made of an elastic material,
The elastic filler (52) is an annular road structure of a road surface track in which room temperature curable liquid rubber is filled in the outer shell member (51) and then cured at room temperature. Placing the traveling rail (1) in the groove (91) formed in the concrete slab (9);
Disposing a spacer (4) for positioning the traveling rail (1) in the recessed groove (91) between the inner wall of the recessed groove (91) and the base of the traveling rail (1). When,
An elastic filler having a cross-sectional shape of the outer shell member (51) that can be brought into close contact with the side surface of the traveling rail (1), and having vibration and sound insulation inside the outer shell member (51). A step of bonding and arranging the packing (5, 5a) filled with (52) on both side surfaces of the traveling rail (1);
A method for installing a road surface track, comprising a step of fixing and arranging a cuff plate (7, 7a) between an inner wall of the concave groove (91) and the packing (5, 5a). A road surface track installation method according to claim 6,
Before the step of disposing the traveling rail (1) in the concave groove (91),
On the bottom surface of the concave groove (91), a ruled line for arranging a track pad (2) for blocking vibration and sound propagation and a sound absorbing material (3) for absorbing running sound is formed. Process,
On the bottom surface of the concave groove (91), the track pad (2) and the sound absorbing material (3) are alternately bonded at regular intervals along the longitudinal direction of the concave groove (91). Road surface track installation method. A method of installing a road surface track according to any one of claims 6 and 7,
The method for installing a road surface track, wherein the spacer (4), the sealing plate (7, 7a) and the packing (5, 5a) are arranged on both side surfaces of the traveling rail (1). A method for installing a road surface track according to any one of claims 6 to 8,
The outer shell member (51) is a hollow pipe-shaped member made of an elastic material,
The method for installing a road surface track in which the elastic filler (52) is obtained by filling room temperature curable liquid rubber into the outer shell member (51) and then curing it at room temperature. An outer shell member (51) made of an elastic material having a hollow pipe shape whose cross-sectional shape can be in close contact with the side surface of the running rail (1) of the tramway for the tramway,
An elastic filler (52) filled in the outer shell member (51) and having vibration and sound insulation properties;
The elastic filler (52) is an orbital packing made by curing a room temperature curable liquid rubber filled in the outer shell member (51) at room temperature. A packing for a track according to claim 10,
Orbital packing that is cut to a predetermined length.

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