JPH0718124B2 - Railroad crossing construction method - 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 of constructing a railroad crossing for a railroad crossing of a rigid structure railroad.

[0002]

2. Description of the Related Art Conventional rigid structure crossing roads are normally produced by factory production of track ballast, sleepers and crossing pavement material as one concrete block, and the blocks brought into the site are laid in a continuous manner. The bottom of the laying rail is placed on the pad in the two grooves on the top surface, and then the retainer fittings (V spring and V spring and V spring and Secure the rail to the block via the rail clip).

With such a railroad crossing structure, the pavement is less damaged, and the durability of the track is increased to stabilize the passage of trains.

[0004]

In the rigid structure crossing as described above, the track is strengthened against the increase in the tonnage of passing trains (depending on the number of trains operated per year and the number of connected trains). Therefore, when replacing the 50kg rail with a 60kg rail, 60kg is added to the bottom of the 50kg rail.
Since the width of the bottom of the rail becomes large, 60 kg can be inserted into the embedment plug of the 50 kg rail laying block via bolts and retainers.
The rail cannot be fastened.

Of course, since the height from the bottom to the head of the 60 kg rail is larger than the height from the bottom to the head of the 50 kg rail, the upper surface of the head of the 60 kg rail is above the upper surface of the block. Project to. For this reason, it is necessary to re-lay the block corresponding to the 60 kg rail, which causes a problem of extremely large expense.

Further, the removed 50 kg rail block is unlikely to be reused, and problems such as securing a storage place occur.

Therefore, an object of the present invention is to provide a railroad crossing construction method in which the block for the 50 kg rail is used as it is when the installation is relocated from the 50 kg rail to the 60 kg rail.

[0008]

In order to solve the above-mentioned problems, the present invention relates to a concrete block laid as a road surface in a railroad crossing area and a pad in two parallel grooves provided on the upper surface of the block. At the railroad crossing in which the 50 kg rail is fixed to the block with a 50 kg rail laid with the bottom part laid and a holding metal fitting engaged with a bolt screwed into the embedding plug of the block, removal of the 50 kg rail and pad Later, after fixing a plurality of 60 kg rail mounting tie plates on the groove with bolts that screw into the embedding plug, place a rail pad on the tie plate and lay a 60 kg rail on it, then A presser foot that engages the heads of bolts with the locking parts provided on both sides of the rate plate and engages the bolts with nuts that are screwed into the bolts. The bottom of the 60 kg rail is fixed while pressing the tool, and the thickening plate whose upper surface is at the same level as the upper surface of the head of the 60 kg rail is laid on the block, and the thickening plate is appropriately attached to the block. It adopts a railroad crossing construction method characterized by being fixed by a method.

[0009]

[Operation] When the 50 kg rail is replaced with a 60 kg rail, the bolt is screwed into the fastening plug of the 50 kg rail to fix the tie plate. Therefore, the bolt is engaged with the locking portion of the tie plate. By screwing in the nut, it is possible to fasten the bottom of the 60 kg rail, which has a large width, through the metal fitting.

Further, since the pressure booster plate is laid on the block and fixed to the block, the step between the head of the 60 kg rail and the block can be avoided by the pressure booster plate.

[0011]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

1 and 2 show a railroad crossing structure in which a 50 kg rail A is laid.

In the method of constructing the railroad crossing, first, concrete blocks 11 manufactured as a road surface in the factory are continuously spread in the railroad crossing in the railroad crossing area.

Grooves 12 are formed on both sides of the upper surface of the block 11.
Are formed in advance, and on both sides of the groove 12,
An embedding plug 14 for screwing the fastening bolt 13 is embedded in advance.

Asphalt 15 is filled between the opposite ends of the track block 11 and between the track block 11 and the road.

Next, the rail pad 16 for the 50 kg rail A is laid in each groove 12, and the 50 kg rail A is laid while placing the bottom portion 1 on the rail pad 16.

After that, one end of the rail clip 17 of the retainer is overlapped on both side edges of the bottom portion 1, and the other end of the rail clip 17 is overlapped on the adjustment wedge 18 placed on the side edge of the groove 12.

Therefore, the long hole 19 of the rail clip 17
While screwing the bolt 13 inserted in the
The bottom portion 1 is pressed by the rail clip 17 and the 50 kg rail A is fastened to the block 11.

The bolt 13 is fitted with a V spring 20 which is a metal fitting interposed between the head of the bolt 13 and the rail clip 17, and the V spring 20 is compressed by screwing the bolt 13.

When the 50 kg rail A at the railroad crossing is replaced with the 60 kg rail A ', the loosened bolt 13 and the V spring 20 and the rail clip 17 are removed to remove the 50 kg rail A'.
Release the fastening of rail A.

Next, the 50 kg rail A is removed and the rail pad 16 is recovered. Thereafter, the tie plate pad 16 'is laid in the groove 12 of the block 11, and the adjusting wedge 18 is inserted between the side edge of the tie plate pad 16' and the side edge of the groove 12, and then the metal shown in FIG. The tie plate 21 made of steel is placed, and the long holes 2 on both sides of the tie plate 21 are placed.
The bolt 23 inserted into the screw 2 is screwed into the embedding plug 14, and the groove 1
Fix the tie plate 21 on the bottom of 2.

Thereafter, the rail pad 24 is placed between both side edges of the tie plate 21, and then the bottom portion 1'is overlapped on the rail pad 24 to lay a 60 kg rail A '.

After laying the 60 kg rail A ', bolts 26 are attached to the engaging portions 25 provided on both side edges of the tie plate 21.
Engage the heads of.

The engaging portion 25 is, as shown in FIG.
Standing pieces 27 whose lower ends are fixed to the tie plate 21 by welding or the like so as to be opposed to each other on one diagonal of the tie plate 21 with a predetermined interval, and the standing pieces 27 are connected from the upper ends of the standing pieces 27 to each other and are inward. It is composed of a projecting piece 28 protruding to the inside, and while the head of the bolt 26 is fitted between the standing pieces 27,
The shaft portion of the bolt 26 is penetrated between the projecting pieces 28,
The lower surface of the U-shaped bending plate is supported by contacting the lower surface of the bolt 26 with the back surface of the head of the bolt 26, but both ends of the U-shaped bending plate facing downward are fixed to the upper surface of the bending plate by welding. The shaft portion of the bolt may pass through the U-shaped notch, and the head portion of the bolt may be engaged with the bending plate.

As shown in the figure, a stopper piece 29 projecting upward is provided at a position on the other side of the upper surface of the tie plate 21 on the opposite line, and the stopper piece 29 is provided on the side edge of the bottom portion 1'of the 60 kg rail A '. If you touch it, tie plate 21
It is possible to stop the movement in the rotation direction as well as the movement in the lateral direction (direction intersecting at right angles to the 60 kg rail A).

The bolts 3 are attached to the respective bolts 26.
Fitting 0 (bolt 26 penetrates through central through hole 31)
At the same time, one end of the seat iron 30 is placed on the upper surface of the side edge of the bottom part 1 ′ of the 60 kg rail A ′, and the seat iron 3 is placed on the upper surface of the engaging portion 25.
The other end of 0 is placed, and then the V spring 20 is fitted to each bolt 26, and then the 60 kg rail A ′ is fastened by tightening the nut 32 screwed into the bolt 26.

Further, a thickening plate 33 is laid on the upper surface of the block 11, and the pressure increasing plate 33 is fixed to the block 11, and 60 kg
The top surface of the head 2 ′ of the rail A ′ and the top surface of the thickening plate 33 are at the same level.

The thickening plate 33 is fixed to the block 11 by, for example, as shown in FIG. Insert the plug 3 into the filling adhesive 36
Fix 5

Next, the bolt 38 inserted into the through hole 37 of the rubber thickening plate 33 is screwed into the embedding plug 35 to block 1
The thickening plate 33 is fixed to the upper surface of 1.

Further, the back surface of the head of the bolt 38 is brought into contact with the pressure receiving plate 39 embedded in the thickening plate 33 to make the thickening plate 33.
Prevents deformation of the head contact portion of the bolt 38 of
The head of the bolt 38 is dropped into the upper surface recess 40 of the thickening plate 33 to prevent the walking from being disturbed.

The gap between the groove 12 and the rail is filled with asphalt or rubber chips to the extent that it does not hinder the passage of the vehicle wheel edge.

Reference numeral 41 in the drawing denotes a filling material such as asphalt filled in the recess 40.

[0033]

As described above, according to the railroad crossing construction method of the present invention, the block of the 50 kg rail can be used as it is when replacing the 50 kg rail with the 60 kg rail, which shortens the construction period. , Construction costs will be cheaper.

Further, since the thickening plate is fixed on the block so that the upper surface of the thickening plate and the top surface of the head of the 60 kg rail are at the same level, it does not hinder walking.

[Brief description of drawings]

[Figure 1] Plan view of railroad crossing with 50kg rail

FIG. 2 is an enlarged vertical front view of the same as above.

[Fig. 3] Front view in vertical section with a 50kg rail removed and a 60kg rail laid.

FIG. 4 is a perspective view of a tie plate.

[Explanation of symbols]

 A 50kg rail A'60kg rail 1, 1'bottom 2'head 11 block 12 groove 13 bolt 14 plug stopper 15 asphalt 16 rail pad 17 rail clip 18 adjusting wedge 19 long hole 20 V spring 21 tie plate 22 long hole 23 Bolt 24 Rail pad 25 Engagement portion 26 Bolt 27 Standing piece 28 Projecting piece 30 Seat iron 31 Through hole 32 Nut 33 Thickening plate

Claims (1)

[Claims] 1. A concrete block to be laid as a road surface in a railroad crossing area, a 50 kg rail laid with a bottom placed on pads in two parallel grooves provided on the upper surface of the block, and an embedding of the block. The above-mentioned 50 is attached to the block by a retainer engaged with a bolt screwed into the stopper.
At a railroad crossing with a kg rail fixed, after removing the 50 kg rail and the pad, a plurality of 60 kg rail mounting tie plates are fixed on the groove with bolts screwed into the embedded plug, and then the rail pad is mounted on the tie plate. Is laid and 60 kg rails are laid on it, and then the heads of the bolts are engaged with the engaging portions provided on both sides of the tie plate, and the bolts are engaged with the nuts screwed into the bolts. The bottom of the 60kg rail is fixed while pressing the holding metal fitting, and the upper surface of the 60kg rail is above the block.
A railroad crossing construction method characterized in that a thickening plate having the same level as the upper surface of the head of a kg rail is laid, and the thickening plate is fixed to the block by an appropriate method.