JPS5838561B2 - How to construct a running track for guide rail cars - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for constructing a running track for a guide rail car using rubber tires as running wheels.

The vehicle characteristics of a guide rail car using rubber tires as running wheels are similar to those of a car.

However, unlike an automobile road, the track is always in a constant position for the tires to pass through, and when paved with asphalt like an automobile road, the asphalt creeps over a short period of time, causing so-called ruts.

Another inconvenience is that no machinery has been developed to construct tracks in the same way as automobile roads.

In other words, on general roads, the final finishing of the pavement is done using mechanized methods such as compaction using large rollers, resulting in a good running surface, but on the tracks of guide rail cars, road machinery is used as is. ＼It is not possible to use it, and currently construction is mostly done by hand, resulting in a driving road surface with many fine irregularities.

The present invention is an attempt to improve this point, and its first purpose is to provide a good running road surface with no small torts by paving with the metalwork as a reference.

Another object of the present invention is to enable pavement that has much higher durability than concrete, asphalt, etc., and also has an appropriate coefficient of friction with tires.

Still another object of the present invention is to minimize the thickness of the pavement and make it uniform, thereby reducing the amount of material required and improving economic efficiency, and providing a uniform pavement finish that eliminates the causes of cracking. This provides a method for constructing roads.

In other words, the feature of the running track structure of the guide rail car according to the present invention is that it has two running tracks mainly made of reinforced concrete, and has metal fittings on at least one edge of each running track. is provided, and the top surface of the concrete body is located at a certain distance below the edge connecting the top surfaces of these metal fittings, and a height of 1 coincides with the line connecting the top surface of this concrete body and the top surface of the metal fittings. The method of constructing this running road structure is to use a gage with a certain level of steps based on the top surface of the rim, to pave the top surface of the concrete body a certain distance below the top surface of the rim. The basic feature is that the concrete is finished and then paved on top of the concrete body.

Furthermore, according to the method of the present invention, laitance is removed from the top surface of the concrete body using a laitance removal machine that rolls while using the top surface of the rim as a rail, and the laitance is removed from the top surface of the rim as a reference above the reference. The amount of paving material spread is adjusted using a gauge with a height of It is preferable to do this.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

1 First, in FIG.
The vehicle travels on a track with a

As is well known, the running wheels 1 are mounted on an axle 6, the guide wheels 3 are supported by a support beam 8, and the vehicle body is mounted on the axle f.
A suspension spring 7 is provided for this support.

In this example, the running path 2 is integrated with the concrete frame 9 (connected with reinforcing bars).

The running path 2 consists of a concrete body 2a made of reinforced concrete, metal fittings 10 placed on the upper edges on both sides of the concrete body 2a, and a resin pavement layer 11 installed on the upper surface of the concrete body 2a.

It is not necessarily necessary to provide the locks 10 on both sides of the concrete body 2a, but they may be provided only on one side as shown in FIG.

Finish the top surface of the concrete IJ body 2a on the left and right sides at a certain distance below the line connecting the top surface of the binding 10 on the left running path 2 and the top surface of the binding 10 on the right running path 2. In addition, the pavement can be finished so as to match the line connecting the amounts of metal on both edges.

In this case, in order to maintain the strength of the edge, it is desirable that the width b' of the running path is wider than the width when bindings are provided on both sides.

Figure 3 shows the internal structure of the running track. 12 is the vertical reinforcement that connects the building frame and the running track, 13 and 13' are the running road reinforcing bars in the longitudinal direction, and 14 is the horizontal reinforcing bar that connects the joints 10. Before pouring, the metal fittings are assembled into a ladder shape to maintain rigidity.

After the position of the strap 10 is adjusted according to the track shape, the longitudinal reinforcing bars 13 and horizontal reinforcing bars 14 are welded together via the auxiliary reinforcing bars 15, and the strap 10 is firmly held against the frame 9. After this, the formwork 16 is assembled and concrete is poured.

The fourth stage is the state of pouring concrete and finishing the top surface.
Shown in the figure.

Gauge trowel 17 shaped with steps of tl so that the top surface of the concrete is positioned a dimension t1 lower than the top surface of the metal fitting.
The upper surface of the concrete is formed using

To finish the concrete, move the gauge trowel in the longitudinal direction of the running path while pressing it downward so that the gauge trowel 17 is in contact with the top surface of the rim 10, so the step size of the gauge trowel from the top surface of the rim 10 is equal to 11G. A concrete top surface is formed a certain distance below.

FIG. 5 is a side view showing a machine for removing laitance from the top surface of poured concrete.

The wheels 18 have flanges and are guided by the sides of the binding 10 in the left and right directions as well.

Reference numeral 19 denotes a frame of the machine, and a motor 20 is attached to the upper part of the frame, and the output of this motor rotates a rotary wire brush 22 by means of a belt 21.

The rotary wire brush 22 is adjusted to contact the upper surface of the concrete with light pressure, and by rotating the button brush, weak parts of the concrete surface, ie, laitance, are removed and hard aggregates are brought to the surface.

In this way, the best conditions can be created for the firm installation of the subsequently applied paving material.

23 is a handle that allows this machine to be pushed by hand.

Fig. 6 is a diagram showing the situation in which paving material is being spread on the road to be paved. By moving it in the longitudinal direction of the path 24' (as shown, the bottom is shaped into a constant shape and the amount of spray is adjusted).

The paving material has a shape that is raised from the top surface of the rim by a height t2.

This is compressed so that it matches the line connecting the top surface of the rim to optimize the density of the paving material, and the compression ratio is ± [hi ζ - ft1. Change.

Therefore, if the finishing method shown in FIG. 4 is not used and the top surface of the concrete is unevenly finished, density unevenness will occur.

If this unevenness is large, it becomes a weak point in the pavement and causes cracks and peeling.

FIG. 7 is a side view showing a pavement finishing roller, in which the forward roller 26 advances to compact a certain amount of paving material spread.

However, in this rolling process, a small amount of crushed paving material is placed on the upper surface of the rim, and the roller rolls slightly above the rim.

Therefore, the front roller 26 alone is not sufficient for finishing.

Therefore, the paving material on the stitching is removed using a spatula 27, and the rear roller 28 is brought into contact with the stitching and is rolled so as to completely compress the extremely small bulge at t2.

29 is a frame, 30 is a dead load for adjusting the compaction load, 3
1 has a handle with an O shape so that it can be pushed by hand.

The running path of the present invention has a rim (a rim), and all construction work is done with the top surface of the rim as a reference, and in particular, it is rolled at the location 1 that coincides with the top surface of the rim during the final roller finishing. The accuracy of the running road surface is high, and it is characterized by a good finish with no particularly small irregularities.

In this case, the binding metal must be straight, but it is generally made by rolling, drawing, or machining, so it has a high degree of straightness. almost disappears.

In the construction method of the present invention, a gauge trowel is used, keeping in mind that the dimensions of the top surface of the concrete serving as the base of the pavement are constant. can be taken.

In other words, paving materials can be saved, resulting in higher economic efficiency.

In addition, by making the thickness constant, it is possible to perform compaction to a constant density suitable for the paving material, resulting in a homogeneous and defect-free pavement, and there are fewer weak points, so cracks will not occur even if there is temperature expansion or contraction over time. It has the characteristic that there are very few opportunities for

The pavement used in the method of constructing a driving path of the present invention (for this, a mortar-like paving material made of epoxy resin as a binder and silica sand, carborundum, etc. as aggregate) is suitable, and the paving thickness is 6.
It is preferable to set it to about rrarL.

Although the unit cost of this material is expensive, the total cost does not increase because the pavement thickness is thin and the amount required can be saved.

This material is highly durable and reduces track maintenance costs.

Furthermore, in this type of paving material, it is possible to appropriately adjust the coefficient of friction between the tire and the road surface by selecting the particle size of the aggregate.

For general running roads, the aggregate particle size is 0.2 to 0.5 rrrm.
It is preferable to set the speed to 0.5 to 1.5 rran on steep slopes.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view of a track for a guide railcar constructed by the method of constructing a running track of the present invention, and FIG.
A cross-sectional view showing the running route constructed from this, Figure 3 is the first
FIGS. 4 to 7 are cross-sectional views showing the internal structure of the running path shown in the figure, and FIGS. 2... Running road, 2a... Concrete body, 10... Metal binding, 11... Paving layer.

Claims (1)

[Scope of Claims] 1. It has two running paths mainly made of reinforced concrete, and a metal fitting is provided on at least one end edge of each line, and a certain distance from a line connecting the upper surfaces of these metal fittings. The upper surface of the concrete body is located at a lower position, and the guide rail car's running path is paved between the height points that correspond to the line connecting the upper surface of the concrete body and the upper surface of the rim. Using a gauge trowel with a certain step based on the top surface of the metal, finish the top surface of the concrete body that is a certain distance below the top surface of the metal.
A method for constructing a running road, characterized in that the above-mentioned paving is then performed on the upper surface of the concrete body. 2. The method according to item 1 above, which is characterized in that the amount of paving material to be spread is adjusted using a gauge shaped like a gauge having a predetermined height above the upper surface of the binding metal as a reference. 3. In the method described in either the above item 1 or 2, the paving finish is carried out by rolling a roller so as to match the line connecting the top surface of the metal stitch, with the top surface of the metal stitch as a reference. Method. 4. It has two running paths mainly made of reinforced concrete, and a metal fitting is provided on at least one edge of each line, and a certain distance below the line connecting the top surfaces of these metal fittings (
The top surface of this concrete body is located at a height that corresponds to the line connecting the top surface of this concrete body and the top surface of the rim. Finish the top surface of the concrete body by a certain distance below the top surface of the metal plate using a gauge trowel with a certain step, and then remove the concrete body using a laitance removal machine that rolls while using the top surface of the metal plate as a rail. A method for constructing a running road, which comprises removing the laitance on the upper surface, and then paving the above-mentioned pavement on the upper surface of the concrete body. A method characterized by adjusting the amount of paving material spread using a gauge having a predetermined height. 6. In the method described in either of the above paragraphs 4 or 5, the top surface of the paving metal is used as a reference. , a method characterized by performing a paving finish by rolling a roller so as to match a line connecting the upper surface of the binding metal.