JP3077036B2 - Concrete paving slab for railway tracks - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a concrete paving slab for railway tracks.

[0002]

2. Description of the Related Art In a conventional general railway track, a ballast made of gravel or crushed stone is laid on a roadbed, sleepers are arranged at regular intervals on the ballast, and a pair of rails is arranged on the ballast at a predetermined interval. However, the track (ballast track) using this ballast ballast is not sufficiently stable against live loads accompanying vibrations and impacts when passing vehicles. It is easily destroyed and its maintenance is troublesome.

[0003] As a countermeasure, in recent years, a track has been constructed using a so-called track slab which also functions as a sleeper and a ballast track bed. Because rails are laid directly or via tie plates, it is necessary to lay track slabs on the roadbed with extremely high accuracy. In this case, it is difficult to adopt the existing line where the train is actually running and the laying work must be performed in the interval.

[0004]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a concrete paving slab for a railway track suitable for replacing a ballast ballast on an existing railway line.

[0005]

The concrete features of the concrete paving slab for a railway track according to the present invention are that a convex portion and a concave portion are formed on both end surfaces in the longitudinal direction, respectively, and that both ends in the longitudinal direction are formed.
A recess near the surface and a connecting bolt extending from the recess to the end face
Holes for insertion are drilled respectively , and anchor bolts are planted on both sides of each sleeper setting place, and bolts for supporting and adjusting the position of the sleeper are fixed on the rising pieces of angle material fixed with these anchor bolts Is attached.

The concrete paving slab for railway tracks of the present invention has a length of 5 to 10 m. When this is used for a track of an existing line, it is necessary to use the interval between train running times (about 4 hours at night). , To replace the existing ballast ballast,
After laying this on the roadbed, in the stage of attaching the sleepers, the accuracy required for the rails etc. can be finely adjusted by moving the sleepers up and down and left and right, so as in the case of the aforementioned track slab at the time of laying High accuracy is not required, and replacement work is easy.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIGS. 1 and 2, reference numeral 1 denotes a concrete paving slab for a railway track (hereinafter simply referred to as a "paving slab"). A convex portion 2 and a concave portion 3 for preventing displacement of the printing plate 1 in the width direction are respectively formed.
Ribs 4 and 4 are provided so as to protrude, respectively, in order to increase the rigidity.

[0008] is near both the end face of the length Direction of pavement 1, concave
Consolidated extending to the end face from 5,5,6,6 and these recesses place
Holes 7, 7, 8, 8 for bolt insertion are formed, and the pavement board 1 is bolted in the longitudinal direction by using these recesses and holes. In addition, one side of the paving slab 1 shown in the drawing.
On the other side, holes for connecting the paving slabs of adjacent tracks
9, 9 are provided.

Anchor bolts 10 are planted on both sides of each sleeper installation position of the paving slab 1, and rising pieces 12 of angle materials 11 fixed with the anchor bolts 10.
A bolt 13 for supporting the sleeper and adjusting the position is attached to the (see FIGS. 3 and 4).

A sleeper 14 to be attached to the paving slab 1 is made of concrete, and has a recess 15 in which a head of a bolt 13 is formed at both end surfaces thereof, and an elastic material 16 such as a rubber film at the back thereof.
Is pasted in advance.

At the time of replacement work, after partially removing ballasts, sleepers, and rails from the existing track, the roadbed surface is rolled, and the paving slab 1 is installed at a predetermined position above the roadbed as accurately as possible. A filler such as cement is injected into the gap between the two.

Then, the sleeper 14 is attached to each predetermined position. At this time, the position of the sleeper 14 in the height direction is adjusted by inserting an iron plate having an appropriate thickness under the sleeper 14 or the like. Adjustment of the lateral position is carried out with bolts 13 and finally the sleeper 14 is fastened with bolts 13 on both sides and fixed in such a way as to completely resist the lateral pressure of the wheels.

[0013] Assuming that the length that can be constructed in one operation is 25 m, 5 m of paving slabs 1 are laid side by side in a lengthwise direction, and five pavement slabs 1 are laid using the aforementioned bolt connection recesses and holes. Each paving slab 1 is integrally bolted.

[0014]

The concrete paving slab for railway tracks of the present invention is as described above. Even if the accuracy required for the height of the rail surface or the rail street is not completely satisfied when laying the paving slab, the pillow The work is easy and can be completed in a short time because it can be fine-adjusted at the time of installation of the nail, and it is not only suitable for replacing the ballast ballast of the existing line, but also the connection type Therefore, a strong track can be obtained, and various effects such as safety against the lateral pressure of the train wheels can be expected because the sleepers are completely fixed with bolts for supporting and adjusting the position. .

[Brief description of the drawings]

FIG. 1 is a plan view of an embodiment of the present invention.

FIG. 2 is a sectional view taken along line XX of FIG.

FIG. 3 is an enlarged front view of a main part of one embodiment of the present invention.

FIG. 4 is an enlarged side view of a main part of one embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Concrete paving slab (paving slab) for railway tracks 2 Convex part 3 Concave part 5 Concave part 6 Concave part 7 Hole 8 Hole 10 Anchor bolt 11 Angle material 12 Rising piece 13 Bolt

──────────────────────────────────────────────────続 き Continuation of the front page (56) References Japanese Patent Publication No. Sho 40-6302 (JP, B1) Jikken Sho 49-22624 (JP, Y1) (58) Fields investigated (Int. Cl. ⁷ , DB name) E01B 1/00 E01B 3/00

Claims (1)

(57) [Claims] 1. A projection and a recess for preventing slippage are formed on both end faces in the longitudinal direction, respectively, and both end faces in the longitudinal direction are formed .
Inserting a connecting bolt extending from the recess to an end face near the recess
Holes for each sleeper, and anchor bolts are planted on both sides of each sleeper installation location, and bolts for sleeper support and position adjustment are mounted on rising pieces of angle material fixed with these anchor bolts A concrete paving slab for railway tracks characterized by being attached.