JP2858226B2 - Construction method of anti-vibration sleeper track - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for constructing an anti-vibration sleeper track, and more particularly to a method for constructing an anti-vibration sleeper track when the thickness of a track bed cannot be secured.

[0002]

2. Description of the Related Art A railroad railroad sleeper is a ballast ballast,
It is supported by concrete trackbed, steel girder, composite girder, etc. When the sleeper is supported by a ballast ballast, no special elastic bearing means is required because the ballast ballast itself has an elastic bearing function, but when it is supported by other concrete floors, steel girder, composite girder, etc. Since these have no elastic bearing action, the sleepers are supported via elastic bearing means. Conventionally, as a method of elastically supporting a railroad railroad sleeper, a method disclosed in Japanese Patent Publication No. 57-36363 has been proposed.

[0003] In the case of the prior art described above, a plate-like side pad having elasticity and a bottom pad are accommodated in a sleeper support box made of synthetic resin. The bottom and both sides of the concrete sleeper are elastically supported by the bottom pad and the bottom pad. The roadbed can be cast without touching each pad, so that it is possible to quickly adjust the level of the rail with high precision and easily support the elastic concrete sleeper. .

[0004]

Conventionally, the lower part of the sleeper support box is buried in a concrete roadbed, so that the sleeper support box is integrally fixed to the concrete roadbed. However, it is necessary to have a sufficient thickness of the concrete slab to embed the sleeper support box sufficiently so that it can be firmly fixed. Is relatively thin because of its own weight. Therefore, the sleeper support box cannot be fixed by burying the sleeper support box in the plate girder.

That is, conventionally, there is no means for easily and surely fixing the sleeper support box to a relatively thin concrete roadbed member such as a plate girder.

[0006] An object of the present invention is to provide a method of constructing an anti-vibration sleeper track which has solved the above-mentioned problems.

[0007]

In order to achieve the above-mentioned object, a method for constructing a vibration-isolating sleeper track according to the present invention is characterized in that a sleeper insertion side and an upper surface are open, and a bottom plate 1 and both side plates 2 are formed. The bottom end plate 1 is provided with a sleeper support box 5 having a bolt insertion hole 4 in the bottom plate 1, and an embedding plug 7 for screwing a bolt having a female screw hole 6 is embedded on an upper surface of a concrete roadbed member 8. The sleeper support box 5 is placed, and a fixing bolt 9 is inserted into the bolt insertion hole 4.
Is screwed into the female screw hole 6 to fix the sleeper support box 5 to the concrete roadbed member 8, and the sleeper support pad 10 stored in the sleeper support box 5.
And the concrete pad 12 by the side pad 11
It is characterized by supporting. Further, the bolt insertion hole 4 may be an oblong hole formed such that its long axis is parallel to the longitudinal direction of the concrete sleeper 12.

[0008]

According to the present invention, the sleeper support box 5 is placed on the upper surface of the concrete roadbed member 8 and the bolt insertion hole 4
By screwing the fixing bolt 9 into the female screw hole 6 of the embedding plug 7 through the
Therefore, even when the thickness of the concrete roadbed member 8 is small, the sleeper support box 5 can be reliably fixed to the concrete roadbed member 8 by the screw fixing structure with the embedding plug 7 and the fixing bolt 9.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 1 to 4 show a first embodiment of the present invention. First, as shown in FIG. 1, a concrete slab 16 having a certain thickness is erected as an example of a concrete floor member 8 between abutments 15 provided on a river or the like. A plurality of concrete sleepers 12 are supported at regular intervals via a nail support box 5 (details will be described later).

On the outside of the abutment 15, there is provided a ballast bed 17 made of a ballast, and a plurality of concrete sleepers 12 are supported on the ballast bed 17 at regular intervals. Concrete sleeper 12 supported by ballast track 17 and ballast track 17
The rail 18 is supported by.

As shown in FIGS. 2 and 4, a concrete slab 16 for supporting the sleeper support box 5 is provided with a plurality of bolt screws for screwing in accordance with the arrangement position of the sleeper support box 5. An embedding plug 7 is provided. As shown in an enlarged cross section in FIG. 5, the plug 7 for screwing the bolt is made of a synthetic resin such as nylon 66, and a female screw hole 6 is formed in the inner periphery of the plug 7 for screwing the bolt. Is provided. A spiral groove 13 is provided on the outer periphery of the plug 7, and a spiral coil 14 made of a metal wire is inserted into the spiral groove 13.
Are screwed together so as to protrude from the outer surface.

The plug 7 for screwing the bolt is buried in the concrete slab 16 as described above, and the upper surface 3 of the plug 7 is inserted.
2 is arranged at the same level as the upper surface 33 of the concrete slab 16. At this time, the spiral coil 14 made of metal wire is used.
However, since it projects from the outer surface of the plug 7, when the concrete plate girder 16 is placed around the plug 7, the bite between the concrete and the plug 7 is ensured, and the plug 7 becomes a concrete plate. It is securely and firmly embedded and fixed to the girder 16.

Further, the sleeper support box 5 is placed on the upper surface of the concrete slab 16 such that the bolt insertion hole 4 (described later) of the bottom plate 1 matches the upper surface of the embedding plug 7.

The sleeper support box 5 for supporting the concrete sleeper 12 on the upper surface of the concrete slab 16 comprises:
It is configured as shown in FIGS. In each of the figures, the sleeper support box 5 stands from the bottom plate 1, both side plates 2 standing from both side edges of the bottom plate 1, and the outer edge of the bottom plate 1,
The outer end plate 3 is connected to the both side plates 2, and further has a sleeper insertion opening 19 into which the concrete sleeper 12 is inserted, and an upper surface opening 20. Further, in the bottom plate 1, at a position on the longitudinal center line thereof,
Two bolt insertion holes 4 are opened with a predetermined gap. The bolt insertion hole 4 is a concrete sleeper 12 whose major axis is supported by a sleeper support box 5 as shown in the figure.
It is good to make it into an oblong hole cut so that it may become parallel to the axis of.

The sleeper support pad 10 is laid on the bottom plate 1 of the sleeper support box 5 via the partition wall 21 except for the bolt insertion hole 4 and its peripheral portion so as not to move. As shown in FIGS. 2 and 3, the two sleeper support boxes 5 are separated from each other by a predetermined distance, and are opposed to each other so that the sleeper fitting opening 19 faces each other. Then, the concrete sleepers 12 are fitted into the respective sleeper support boxes 5 from above through the sleeper fitting opening 19 and the upper surface opening 20, and the lower surfaces at both ends of the concrete sleeper 12 are
It is supported by the sleeper support pad 10.

In order to raise and adjust the support surface of the concrete sleeper 12 by the sleeper support pad 10,
As shown in FIGS. 2 and 4, the height adjustment can be performed by inserting one or more height adjustment packings 22 having a predetermined thickness into the lower surface of the sleeper support pad 10 in the sleeper support box 5. Further, in the sleeper support box 5, 23 is a sponge, 11 is a side pad, and 25 is a concrete sleeper 12 through the side pad 11.
The side adjustment packing for correction, 26 is a space as in the rail for regulating the position of the end face.

The sleeper support box 5 is used in the state shown in FIGS. That is, the bolt insertion hole 4 of the bottom plate 1 of the sleeper support box 5 is aligned with the female screw hole 6 of the embedding plug 7, and the sleeper support box 5 is mounted on the upper surface 3 of the concrete slab 16.
3 and then the fixing bolt 9 is screwed into the female screw hole 6 of the embedding plug 7 through the bolt insertion hole 4 so that the sleeper support box 5 is firmly fixed to the concrete slab 16. You. At this time, if the bolt insertion hole 4 is a long hole as shown in the figure, the sleeper support box 5 is inserted through the long hole.
Can be fixed to the concrete slab 16 while being adjusted in the correction direction along the rail.

Thereafter, the concrete sleeper 12 is installed in the sleeper support box 5 via the sleeper support pad 10, the height adjustment packing 22, the side pad 11, and the side adjustment packing 25. The rail 18 is fixed to the concrete sleeper 12 by a rail fastening device 27 arranged at a predetermined interval.

After fixing the sleeper support box 5 to the concrete slab 16, if the rails are to be corrected in the sleeper support box 5, the concrete sleeper 12 is required.
The thickness of the side adjustment packing 25 that regulates the position of the end face of the concrete sleeper 12 is changed to an appropriate one.
Is corrected, the street of the rail 18 is also corrected by itself.

FIG. 7 is a diagram showing a second embodiment of the present invention. In the second embodiment, as the concrete floor member 8 on which the sleeper support box 5 is installed, a concrete slab 24 is used instead of the concrete slab 16 in the first embodiment.
Consists of upper and lower flanges 29 and 30 and a web 31 connecting between the upper and lower flanges.
An example is shown in which the steel girder 28 supported by the steel plate 5 is installed on the upper flange 29 and integrally fixed via a stud dowel (not shown) provided on the upper flange 29. .

Since the concrete floor slab 24 is installed at the upper flange 29 of the steel girder 28 as described above, the weight of the concrete slab 24 is limited.
Has to be a relatively thin concrete member like the concrete slab 16 in the first embodiment. Therefore, as in the first embodiment, the method of embedding and fixing the sleeper support box 5 to the concrete floor slab 24 is as follows. Can not be adopted.

Therefore, in the second embodiment, similarly to the first embodiment, a plurality of plugs 7 for screwing bolts are buried in the concrete floor slab 24 at predetermined intervals, and the sleeper support box 5 is provided. Is placed on the upper surface of the concrete floor slab 24, and the fixing bolt 9 is inserted through the bolt insertion hole 4 of the bottom plate 1 to insert the plug 7.
The sleeper support box 5 is fixed to the concrete floor slab 24 by being screwed into the female screw hole 6 of FIG.

In FIG. 7, a wall rail 34 is provided outside the sleeper support box 5 integrally with the concrete floor slab 24. Other configurations are the same as those of the first embodiment. Further, the embedding plug 7 for screwing the bolt of the present invention is embedded in a general concrete bed having a sufficient bed thickness, and the sleeper support box 5 is fixed to the concrete bed using the method of the above embodiment. Of course, it doesn't matter.

[0024]

As described above, according to the present invention,
At the time of construction of the anti-vibration sleeper track, the bottom plate 1 of the anti-vibration sleeper support box 5 for elastically supporting the concrete sleeper 12 is provided with a bolt insertion hole 4 and embedded in the concrete roadbed member 8 for bolt screwing. Since the plug 7 is embedded and the fixing bolt 9 is screwed into the plug 7 through the bolt insertion hole 4, even if the thickness of the concrete roadbed member 8 is thin, the plug 7 and the fixing bolt 9 can be used. The sleeper support box 5
Can be securely and firmly fixed to the concrete roadbed member 8, and the sleeper support box 5 can be installed on the concrete slab 16 installed on the abutment 15 or the concrete slab 24 installed on the steel girder 28. The construction of the anti-vibration sleeper track in a section where the predetermined track thickness cannot be ensured can be performed smoothly.

[Brief description of the drawings]

FIG. 1 is an explanatory sectional view showing a first embodiment of a method of constructing a vibration-isolating sleeper track according to the present invention.

FIG. 2 is an enlarged partial cross-sectional view showing a structure for fixing a sleeper support box to a concrete spar in FIG. 1;

FIG. 3 is a partially omitted plan view of FIG. 2;

FIG. 4 is a partially enlarged view of FIG. 2;

FIG. 5 is an enlarged sectional view of a portion A in FIG. 2;

FIG. 6 is a plan view of FIG. 5;

FIG. 7 is a view showing a structure for fixing a sleeper support box to a concrete floor slab as a second embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bottom plate 2 Side plates 3 Outer end plate 4 Bolt insertion hole 5 Sleeper support box 6 Female screw hole 7 Embedding plug for bolt screwing 8 Concrete roadbed member 9 Fixing bolt 10 Sleeper support pad 11 Side pad 12 Concrete sleeper 13 Spiral Groove 14 Spiral coil made of metal wire 15 Abutment 16 Concrete slab 17 Ballast track 18 Rail 19 Sleeper fitting opening 20 Top opening 21 Partition wall 22 Height adjustment packing 23 Sponge 24 Concrete floor slab 25 Side adjustment packing 26 Space 27 Rail fastening Device 28 Steel girder 29 Upper flange 30 Lower flange 31 Web 34 Wall rail 35 Elastic bearing

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields investigated (Int.Cl. ⁶ , DB name) E01B 1/00 E01B 3/00 E01B 3/46 E01B 19/00 E01B 29/06 E01B 37/00 E01D 19 / 12

Claims (2)

(57) [Claims] 1. A sleeper fitting side and an upper surface are open,
Concrete having a bottom plate 1, both side plates 2, and an outer end plate 3, a sleeper support box 5 having a bolt insertion hole 4 provided in the bottom plate 1, and an embedding plug 7 having a female screw hole 6 for bolt screwing embedded therein. The sleeper support box 5 is placed on the upper surface of the roadbed member 8, a fixing bolt 9 is inserted into the bolt insertion hole 4, and the fixing bolt 9 is screwed into the female screw hole 6 to support the sleeper. A box 5 is fixed to the concrete roadbed member 8, and a concrete sleeper 12 is supported by a sleeper support pad 10 and a side pad 11 stored in the sleeper support box 5. Construction method. 2. The construction of a vibration-absorbing sleeper track according to claim 1, wherein the bolt insertion hole 4 is an oblong hole formed so that a major axis thereof is parallel to a longitudinal direction of the concrete sleeper 12. Method.