JPH05500092A - track bed - Google Patents

Abstract

A rail for vehicles to travel on is supported from a surface (14) by flanges (17) extending transversely from the top of the rail (11). The rail has a groove (16) for the road wheels. The rail is recessed into the road surface in a relatively shallow recess (12). The rail has a low profile since the loading on the rail is taken on the surface and is not carried down as usual to a substrate for the surface.

Description

[Detailed description of the invention] rail field of invention The present invention relates to electric train tracks and rails for street railways.

Background of the invention Railway rails are supported by pine sleepers on a ballasted track on adjusted foundations. It is an I-beam. When a road intersects a railway, the road surface is flush with the top of the rail. The gap between both rails is then filled in. These rails are so-called high It is a profile rail. Similar vertical profile rails are also used for street railways. or commonly used. Therefore, train tracks are basically I-beams. The so-called phoenix rail of the A type with a groove for receiving is used. Laying such rails on the road In order to to a depth of at least 50 cm for the installation of sleepers or tracks. Is it necessary to excavate the road surface? Such deep excavations can damage water and electricity mains. This would require digging up underground public works projects, which would impair the integrity of road construction. Like that In the late 1950s, the West German Developed in Lesden. In this method, the rails are made of concrete that acts as sleepers. The trackbed is pre-cast in the top panel and then the trackbed is cast in a pattern approximately 20 cm deep. The track bed was dug out to accommodate the flannel. However, the disadvantages of this system One of the points is that the rail must be permanently attached to the panel, so the rail must be the same length as the rail, so weld the rail to a reasonable length. It is something that must be approached. Dr. Zahummensky in Budapest? In another method developed, the panels are prepared with steel-lined channels, The depth is quite shallow at 18 cm, and the separate rails are machined with rubber bands. Installed into channels of adjacent panels by means of tightening with locks. Therefore , it is possible to handle the panels by hand, and the rail height is, for example, 7 cm. , an 11 cm web is attached between the bottom of the channel and the bottom of the panel. .

A drawback of such panel systems is that if the subgrade soil is not strong, the panels will sag. Due to its tendency to sway and oscillate, the West German system used This is being addressed by increasing the rigidity of the road.

Rails are exposed to train loads, cross-traffic loads, and curves and rail intersections along the track. Receives the load at the difference point. Where the load is too high for the panel system , can transition zones also be utilized for traditional phoenix-type installations? , it is desirable to minimize the installation of such phoenix types.

Light rail or modern urban roads, which could probably be used more than they are now, are: 1 Built to high standards to withstand the weight of a 40 ton vehicle with a 1 ton wheel load. It is. These roads are expensive to construct. And give improved rails to minimize the amount of excavation required for such trackbeds by , which is the object of the present invention.

Summary of the invention One aspect of the invention is to have a wheel group on the top surface when in use. a rail having a flange on an upper surface of said bar portion; In order to spread the wheel load over that part of the bar, one part of the bar is tensioned integrally. It is characterized by a pair of protruding flanges.

Another aspect of the invention is to include a wheel group on the top surface when in use. providing a rail including a portion of the bar, which rail extends laterally integrally from the portion of the bar; by at least one flange extending toward the grooved surface thereof; characterized.

A further aspect of the invention is to provide a trackbed with internal rails inserted therein. The trackbed has a part of the bar embedded in the trackbed, and the bar part is integrated with the part of the bar. The rail has a flange portion and each flange portion has a track lining on both sides of the bar portion. It has the characteristic of sitting on top.

The flange provides the ability to spread vertical loads and at the same time resist lateral loads. To minimize damage to the trackbed from water leaking down the side of the section, grasp.

Yet another aspect of the invention is to provide wheel glue on the top surface when in use. a rail including a bar portion having a bar portion facing toward the top surface of the bar portion; It is characterized by having a pair of flanges that integrally protruded from a portion of the bar. have.

Rewritten, the present invention provides a trackbed with such a rail inserted therein, and The flange is hidden inside the track bed.

Brief description of the drawing FIG. 1 is a sectional view of a rail attached to a track bed.

FIG. 2 is a perspective view of a pair of rails attached to a trackbed.

FIG. 3 is a perspective view showing a rail intersection.

Description of examples FIG. 1 shows a rail 1 in a shallow depression 12 in a trackbed 14 or other suitable surface. 1 is shown in an enlarged view. This depression is, for example, 4 cm deep and 10 cm wide. It may also be a tool. This rail has a central bar portion 15, which The cross section of a portion is approximately a normal trapezoid. This bar portion 15 is It has a wide surface that forms the top surface of the A groove 16 is formed in which the hole is inserted. On each side of the rail, the flange 17 is part of the bar. It extends laterally in one piece. The rails can be made of steel, iron or another material and are By rolling, extruding or other methods, it is formed into a T-shape as shown.

To form the indentation, use a suitable tool such as a disc or other cutter. Dig out the recess with a cutter and remove any remaining material between the original cuts before using a planer. Cut the edges of the slot-like recess with a suitable cutter, such as a cutter or other cutter. It is desirable to take it. Usually a pair of rails are used, as shown in Figure 2, Cut a pair of (recesses) using simultaneous cutters at the same time to ensure accurate spacing. It is possible to refuse. Returning to Figure I, the indentations are generally rectangular on the cut plane and are When partially filling the recess with material 18 and inserting the rail into it, the rail is stabilized in the material 18. Horizontal ties (not shown) are used as gauge regulating devices. They can be used at intervals, and by hiding them below the track surface. and mechanical means or some as provided by Corkelast. The rails can be fixed in place by other means, such as adhesives that have some elasticity. Wear. Each flange is designed to improve sealing and rail resistance to lateral movement. It is possible to add ribs or shallow groups to the underside of the cage. The rail is continuous be welded or otherwise joined end-to-end to create a typical track to avoid thermal expansion problems. Can be placed under tension to avoid problems. A single flag on one side of the rail. It would also be possible to use a recess, but this would involve cutting out the recess accurately. vertical loads on the flanges and rails to avoid the rails being prone to twisting. Covers both bases. The width of the flange or each flange should be adjusted to avoid excessive settlement. The width of the base should be sufficient considering the load carrying capacity of the base.

FIG. 2 illustrates a pair of rails laid on a track bed.

In cross-road traffic, smooth metal bumps made by rails In particular, there will be inconveniences for two-wheeled vehicles such as bicycles and bikes, or this should be avoided. In order to The top of the rail is covered with road paving material. Substantial to flange or trackbed Lower the flange slightly below the road surface so that it is flush with the It is not possible to fill the seam along the flange side with Lumak or similar. Dew. Slowly lower from the top of the rail to the top of the rail, which is on the same plane as the track type. to form the flange, then cover the top of the flange with tarmac or other material. , thereby minimizing exposed metal area.

FIG. 3 illustrates a junction piece formed by casting or the like.

It includes two rails 21 and 22 at an angle to each other, and the grooves in both rails It extends across the central intersection 23. Contains more complex arrangements like branch points special treatment, such as a conventional Phoenix orbit section. However, this problem can also be solved by appropriately modifying the configuration shown in FIG.

The present invention is primarily useful in locations where road vehicles and rail vehicles share road space. used. Such conditions may occur where electric train tracks or light urban railways are used. Situations will occur. Running on train tracks, i.e. urban light rail or separate tracks In this case, it is possible to use the present invention, and it can also be used for main line railway It is possible. If separated tracks or mainline railways are included, the rails are laid. Trackbeds are made of heavy concrete, stone slabs or panels, and It may also be on a continuous concrete track laid along a line. Like that For concrete trackbeds, expansion joints may have to be used. However, by making depressions during manufacturing or when laying concrete before it hardens, Wear. For example, making depressions with a slip-form paver or pond machine I can do it. The flat profile rail according to the invention requires less rail height In this sense, it is compatible with conventional railway tracks. This advantage is especially true when the tracks are electrified. This is particularly noticeable when the vehicle has been modified for gauge conversion. Because existing In tunnels, there is no need to dig into the existing track bed, which is exposed on the rock wall. It is from.

If the rails are isolated, the rails may be used for transmission or power supply. Ru. However, this method cannot provide enough power to drive the vehicle. Probably not possible. But using rails only as a return path is possible. Also, in that case, avoid earth leakage currents that would disturb other utilities. It is desirable to connect the rails to low resistance ground cables at suitable intervals to ensure Delicious.

The cross section of the rail is determined by its use. Ditches are intended as a form of transportation It has a shape that is suitable for and the steering wheel wheels to transmit steering information. Can be done. The part of the center bar should be thick enough to create a suitable groove, but it is generally It is approximately 7 centimeters long and will be installed 4 centimeters below the track. Also, the central bar The width of the section is typically around 10 cm, with further lateral flapping. The lunge part is overhanging, and the amount of overhang is enough to support the suspension load of the rail on the track bed. Determined based on capacity. As a result, the vertical load is supported by the bottom of the rail. Vertical and horizontal loads can be carried without significant settlement as in conventional models. Supported.

If the flange is lowered below the bar part, also together with the bar part. Similarly, even if the flange is lowered below the track bed, the vertical load will be above the track bed. It hangs close to the surface. In cases where depressions are formed during track laying or during track laying planning. Rails during trackbed construction with final paving that buries flanges without increasing picture height. If it is possible to lay the track, it is practical to lower the flange surface below the track laying surface. It seems to be practical.

Copy and translation of written amendment) Submission form (Article 184-8 of the Patent Act) February 26, 1992

Claims (1)

[Claims] 1. A bar section having a wheel groove (16) on its uppermost surface when in use. In the rail including the part (15), there is a flange on the upper surface of the bar part, and 1 which integrally extends from the bar part in order to spread the wheel load to the bar part. A rail characterized in that it has a pair of flanges (17). 2. A bar section having a wheel groove (16) on its uppermost surface when in use. In the rail including the minute (15), it integrally overhangs the side from the bar part, characterized in that it has at least one flange (17) towards its grooved surface; A rail with a sign. 3. A bar section having a wheel groove (16) on its uppermost surface when in use. A pair of flanges protruding from the top surface of the bar portion of the rail containing the bar portion (15). A rail characterized in that it has a hinge (17). 4. In a trackbed with a rail (11) inserted inside, The bar (11) and flange (11) are integrated with this bar part. 17) section, with each flange section lying on the track bed on both sides of the bar section. A rail with characteristics. 5. In the track bed according to claim 4, the space between the recess and the bar is made of material. (18) The number of orbits is characterized by being filled by (18). 6. In the track bed according to claim 4 or 5, the rail is mechanically A trackbed characterized in that it is fixed in place by means or other means. 7. In the track bed according to any one of claims 4 to 6, the flap number of tracks characterized by a sealing contact with the road surface. 8. In the track bed according to any one of claims 4 to 7, the rail The track bed between each pair is raised to the same plane as the top surface of the rail. The track bed. 9. In the track bed according to any one of claims 4 to 8, the rail The rail is made up of multiple rail sections welded together to form a continuous rail. A trackbed characterized in that it is formed under a tensile force and is laid under a tensile force. 10. In the track bed according to any one of claims 4 to 9, two Rails intersect at an angle to each other by junction pieces The product has a member molded by monolithic casting or other methods, and the above-mentioned The member has bar portions that intersect with each other, said bar portions (21 and 22) intersect at an angle and have grooves that cross the central intersection and A trackbed characterized by being on the same plane as the grooves in both rails. 11. In the track bed according to any one of claims 4 to 10, The junction piece is phoenix-shaped, with two resins intersecting at a certain angle. A trackbed characterized by having a junction for rails. 12. In the trackbed according to any one of claims 4 to 11, the bar The section is approximately 7 cm high and is installed 4 cm below the track, and is attached to the central bar. The width of the - part is about 10 cm, and the flange part extends further to the side. The amount of overhang is determined by considering the carrying capacity of the rail suspension load of the track bed. , so that the rail can be suspended from the track surface without significant settlement. A trackbed characterized by the fact that