JPH052765B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a method for laying a rail-directly connected track.

Prior art In a method of laying a rail-directly connected track by fastening the left and right rails to multiple concrete short sleepers (hereinafter referred to as short sleepers) and placing cocrete around the left and right short sleepers, the During the curing period after concrete is poured, the left and right rails must be temporarily fixed in the correct position along with short sleepers to maintain the distance between the left and right rails and prevent them from shifting. This is accomplished by erecting a support made of steel or the like between the left and right rails, and installing the same support on the outside of the left and right rails.

Problems to be Solved by the Invention However, this method requires a considerable number of shorings, and there is work to install and remove the shorings, which generally makes the work complicated and troublesome, and increases construction costs. There was a drawback.

This invention was proposed in order to solve the above-mentioned conventional problems, and is capable of temporarily fixing the left and right rails at accurate positions while accurately maintaining the spacing when laying a rail-direct track. The purpose is to provide a method for laying tracks.

Composition of the invention This invention installs a plurality of short concrete sleepers at predetermined intervals on the left and right sides on a foundation,
When the left and right rails are fastened to the left and right concrete short sleepers, and concrete is poured around the concrete short sleepers to form a rail-direct track, concrete is placed at every plurality of the concrete short sleepers. After installing a long sleeper, fastening the rail to the concrete long sleeper, and adjusting the height of the rail by interposing a concrete block and a height adjustment wedge between the foundation and the rail, the concrete The above objective is achieved by pouring concrete around the short sleepers and concrete long sleepers and laying a track directly connected to the rails.

EXAMPLE Hereinafter, the method according to the present invention will be explained step by step.

First, a plurality of short sleepers 1, 1 are installed at regular intervals, and the left and right rails 2, 2 are erected on the short sleepers 1, 1, and fastening bolts 3, 3 are installed on the short sleepers 1, 1. Fix it with.

Next, concrete long sleepers 4, 4 (hereinafter referred to as long sleepers) are erected between the left and right rails 2, 2 at a rate of one for each plurality of short sleepers, and the left and right rails are installed on top of these long sleepers 4, 4. 1, 1 are fixed with fastening bolts 3, 3 to assemble the rail.

Subsequently, the left and right rails 2, 2 connected by the long sleepers 4, 4 are installed at predetermined positions on the foundation 5.

Subsequently, the position is determined in the longitudinal and lateral directions, and the height is adjusted by interposing a concrete block 6 and a height adjustment wedge 7 between the left and right rails 2, 2 and the foundation 5.

Subsequently, concrete 8 is placed around the short sleepers 1 and long sleepers 4. Note that the concrete blocks 6 are buried and the height adjustment wedges 7 are removed.

There are other ways to adjust the height of the left and right rails 2, 2 as shown in FIGS. 6 and 7.

In the method shown in FIG. 6, holes 10 are formed at both left and right ends of the support plate 9, and holes
Nuts 11, 11 are welded to the upper side of 0, 10, and height adjustment bolts 12, 12 are attached to these nuts 11, 11.
A jig 13 made by screwing is used. In use, the jig 13 is installed below the left and right rails 2, 2, and the support plate 9 supports the left and right rails 2, 2, respectively. And height adjustment bolt 1
The height of the left and right rails 2, 2 is adjusted by rotating the rails 2, 12 and appropriately changing the length of the lower protruding portion thereof. In addition, the lower protruding parts of the height adjustment bolts 12, 12 are made of asphalt,
By applying a release material such as paraffin or grease that does not adhere to the concrete, the height adjustment bolts 12, 12 can be easily pulled out even after the concrete 8 has hardened.

In the method shown in FIG.
A long sleeper with a nut 14 buried in the middle part of 3 is used.

In use, the left and right rails 2, 2 are screwed into the nuts 14 in the left and right holes 10, and the height adjustment bolts 12 are rotated to suitably change the length of the lower protruding portions. The height shall be adjusted.

Note that, similar to the method shown in FIG. 6, a release material is applied to the lower portion of the height adjustment bolt 12.

Figure 8 shows a modification of the long sleeper 4.
The middle part of the long sleeper 4 is made considerably thinner by forming a recess 15 in this part, and concrete 6 is poured into the recess 15, so that the whole long sleeper 4 looks like a short sleeper from the outside. This is done in consideration of the external appearance.

Effects of the Invention The present invention has the above configuration, and according to this method, when laying a rail-directly connected track, the left and right rails are connected in advance with long sleepers, and the rails are framed so as to have a predetermined spacing before installation. Therefore, immediately after installation, there is no need to worry about shifting the spacing or position, and there is no need for any shoring, making it possible to temporarily fix the left and right rails extremely easily and accurately.

Furthermore, the height of the left and right rails can be adjusted very easily by interposing a concrete block and a height adjustment wedge between the foundation and the rail.

[Brief explanation of the drawing]

1 to 3 show an embodiment of the present invention. FIG. 1 is a plan view of a rail-directly connected track, and FIGS. 2 and 3 are lines A-A and B-B in FIG. 1. The cross-sectional view, FIG. 4, and FIG. 5 show how to adjust the height of the rail. FIG. 4 is a plan view of the rail-directly connected track, and FIG.
6 and 7 are sectional views showing another method of rail height adjustment, and FIG. 8 is a sectional view taken along the line A--A in FIG. 1 showing a modification of the long concrete sleeper. 1... Concrete short sleepers, 2... Left and right rails, 3... Fastening bolts, 4... Concrete long sleepers, 5... Foundation, 6... Concrete blocks,
7... Height adjustment wedge, 8... Concrete, 9
... Support plate, 10 ... Hole, 11 ... Nut, 12 ... Height adjustment bolt, 13 ... Hole, 14
...Natsuto, 15...Concave.

Claims (1)

[Claims] 1. On the foundation, install a plurality of short concrete sleepers at predetermined intervals on each side, connect the left and right rails to the left and right short concrete sleepers, and pour concrete around the concrete short sleepers. In the method of laying a rail-directly connected track, in which a long concrete sleeper is installed every plurality of the short concrete sleepers, the rail is fastened on top of the long concrete sleeper, and the foundation and a rail directly connected track characterized in that after adjusting the height of the rail by interposing a concrete block and a height adjustment wedge between the rail and the rail, concrete is poured around the short concrete sleeper and the long concrete sleeper. How to lay.