KR102509161B1 - Method For Constructing Rail Track Of Tram - Google Patents

Abstract

The present invention relates to a method for installing rails for road trams that enable economical and rapid construction. Its configuration comprises the steps of building the ground on which the rails are installed; Installing a floor plate by pouring concrete on the built ground; Seating a prefabricated reinforcing bar assembly on the floor plate; Setting and fixing a prefabricated rail assembly to an accurate position using the reinforcing bar assembly; Installing a side wall formwork on the left and right sides of the floor plate and installing a concrete roadbed by pouring concrete inside the formwork; Rail fixing blocks fixed to the left and right sides of the rail; It is fixedly installed on the left and right outer sides of the rail fixing block and is fixed to the reinforcing bar assembly; characterized in that it comprises a.

Description

Installation method of rail for road tram {Method For Constructing Rail Track Of Tram}

The present invention relates to a road tram, and more particularly, to a method of installing a rail for a road tram enabling economical and rapid construction.

Street trams, which belong to the light rail system, were widely used in the past as mass transportation means for urban areas, but have been discontinued in many cities due to the development of automobiles. However, due to the recent development of technology related to street trams, extreme traffic congestion due to overcrowding in the city center, and environmental problems, many cities are in the mood to install them again.

Street trams are slightly behind the subway, which is a heavy train, in terms of transport volume, but are more than buses, require significantly less construction cost than subways, and do not cause air pollution and noise pollution during operation, so they are recognized as a means of public transportation in the city center.

The track of a street tram is constructed in a structure quite different from that of a regular railway or a heavy subway, and is usually installed on the ground so that the rail does not protrude above the ground so as not to cause inconvenience to cars and pedestrians traveling together.

A normal railroad track is constructed by installing sleepers at regular intervals on a roadbed formed by compacting gravel or pouring concrete on the ground, and installing two lines of rails at both ends of the sleepers. Rails in such railroad tracks are usually I-shaped steel rails with an I-shaped cross section, but I-shaped rails are sometimes used for road tram rails, but are fixed to the head with wheel grooves and sleepers. A grooved rail composed of a bottom part and a vertical part connecting the head part and the bottom part is used, and the upper surface of the rail is buried in the ground to match the ground, so that the vehicle wheels of the road tram are inserted into the wheel grooves of the rail It is built so that it can run on rails.

The rail used in such a normal road tram must directly support all the loads of the tram vehicle, so a lot of material is required, a separate sleeper or track slab must be provided, and the strength of the rail is reduced due to corrosion. And since it must be constructed in accordance with the general railroad track, there are many problems such as difficulty in construction.

The track structure of a conventional road tram is constructed in a structure similar to a general railroad track, but recently, a lot of buried track structures have been installed.

Registered Patent No. 10-0948279 The buried railroad track structure equipped with a rail adjustment device is installed by burying the rail by forming a gutter in which the rail will be installed on the track slab instead of intermittently supporting the rail of the railroad track with sleepers on the track slab. A buried railroad track structure is proposed.

Korean Patent Registration Nos. 10-1132952 and 10-1678589 also suggest the structure of a street tram according to each purpose.

On the other hand, the surface tram has a useful life depending on the number of times or period of use. Structure and safety may be threatened if used beyond the service life. Therefore, when the service life is over, it must be replaced with a new one.

The rail of the street tram has a buried structure. That is, the rail is placed on a rail pad on the bottom of the rail gutter, and the space between the rail gutter and the rail is filled with an elastic material such as urethane. The elastic body acts to reduce vibration and noise transmitted from the rail to the road surface.

When it is time to replace the rail, the rail is removed by separating it from the rail gutter and pulling it out. And in this process of demolition, the elastic body that was wrapped around the rail is damaged and becomes useless and discarded. In particular, the edge of the elastic body that was in close contact with the side wall of the rail gutter is severely damaged when the rail is replaced. In the end, when a new rail was to be installed again, a new elastic body had to be used, which was a huge waste of money.

If the site where the rail is newly installed or re-installed is located in a bustling downtown area, there are many restrictions on working hours. Therefore, rapid construction is a very important factor in the construction of tram rails, and continuous research is required.

Republic of Korea Patent Registration No. 10-1132952 Republic of Korea Patent Application No. 10-1678589

In relation to the above problems, an object of the present invention is to provide a construction method or an installation structure of a road tram rail installed by the method that enables the rail of a road tram to be installed quickly and economically. More specifically, an object of the present invention is to provide a method that significantly reduces the construction period by prefabricating components at a separate site in advance and then transporting them to the construction site of the track and immediately putting them into construction.

The above purpose is

Building the ground on which the rails are installed; Installing a floor plate by pouring concrete on the built ground;

Seating a pre-fabricated rebar assembly on the floor plate;

Setting and fixing a prefabricated rail assembly to an accurate position using the reinforcing bar assembly;

Installing side wall formwork on the left and right sides of the floor plate and pouring concrete into the formwork to install a concrete ballast;

The rail assembly is manufactured separately at the factory,

rail; Rail fixing blocks fixed to the left and right sides of the rail; It is achieved by a rail installation method for a road tram, characterized in that it includes; a rail mounting plate fixed to the left and right outer sides of the rail fixing block and fixed to the reinforcing bar assembly.

According to another feature of the present invention, an anchor pin may be further installed on the outside of the rail mounting plate to serve as an anchoring by being embedded in the concrete ballast.

According to another feature of the present invention, the rail seating portion serving as a seat for seating the rail may be provided in the form of a groove on the left and right sides of the upper portion over the entire section along the longitudinal direction of the reinforcing bar assembly.

According to another feature of the present invention, the rail assembly further includes a rail pad laid on the bottom of the rail and a damper filling a space on the left and right sides of the rail; The damper may be a hollow pipe or foam.

According to another feature of the present invention, a cover band may be further included to surround the rail pad, the lower portion of the rail, and the damper to form one body.

According to the present invention, the reinforcing bar assembly and rail assembly can be manufactured in advance in a factory outside the site and then moved to the rail construction site and then installed immediately, thereby reducing the construction period by 40 to 50% compared to the existing on-site installation method A method of installing a rail for a road tram is provided. Therefore, the burden of newly installing or reinstalling a road tram in the downtown area is greatly reduced.

1 is a cross-sectional configuration diagram of an installation state of a rail for a road tram according to an embodiment of the present invention.
2 is a perspective view of a rail assembly in a rail for a road tram according to an embodiment of the present invention.
3 is a cross-sectional view of a rail assembly in a rail for a road tram according to an embodiment of the present invention.
Figure 4 (a) (b) (c) (d) (e) is a cross-sectional view showing the step-by-step construction process of the rail for the road tram according to an embodiment of the present invention.
5 is a side view of a rail assembly in a rail for a road tram according to an embodiment of the present invention.

Hereinafter, specific details of the present invention will be described in detail with reference to the accompanying drawings. An embodiment will be described with reference to FIGS. 1 and 2 basically, but will be described with reference to the remaining drawings where necessary.

The street tram according to the present invention is usually installed on the road surface in the city center.

The rail of the road tram is installed at the same height as the road surface so that there is no inconvenience to the passage of general vehicles. After installing the rail first, the road can be paved around it, or the road can be dug to a certain depth to install the rail and then the rail can be installed here. Any of these methods may be applied to the present invention.

First, the configuration of the tram track according to the present invention will be described with reference to FIG.

The rail gutter (3) is provided symmetrically on the concrete ballast (1). The rail (5) is installed inside the rail gutter (3). As shown, the rail 5 is a grooved rail in which a groove is formed along the longitudinal direction on the upper surface. However, it is not limited thereto, and type I is also possible. A rail pad 4 is interposed and installed between the rail and the bottom surface of the rail gutter 3. That is, the rail pad 4 is laid on the bottom of the rail 5 and is usually made of a resin body.

Rail fixing blocks 7 and 9 are installed on the left and right sides of the rail 5, which is to prevent the movement of the rail 5 and reduce vibration and noise.

The rail fixing blocks 7 and 9 are basically made of polyurethane resin, and may be a combination of different materials. As shown, the side space of the rail 5 is filled, and the damper 11 for filling the space while reinforcing the vibration damping action is inserted into the rail fixing blocks 7 and 9. The damper 11 reduces the amount of polyurethane resin used and may be made of a hollow pipe or foam.

As shown in FIG. 3, a cover band 6 may be added to surround the rail pad 4, the lower portion of the rail 5, and the damper 11 to form one body. The cover band 6 is a jig means for fixing the rail pad 4 and the damper 11 in place when the rail fixing blocks 7 and 9 are molded integrally with the rail 5. The cover band 6 may be a bent thin plate and may be installed in places along the longitudinal direction of the rail 5 or may be installed throughout the length of the rail 5 .

On both sides of the rail fixing blocks 7 and 9, rail mounting plates 13 are attached along the longitudinal direction of the rail 5.

An anchor pin 15 is fixed to the outside of the rail mounting plate 13 by welding. Anchor pins 15 are installed here and there along the length of the rail mounting plate 13, which increases the bonding force with the concrete ballast 1. Inside the concrete ballast (1), reinforcing bars (17) are placed.

The tram track of the above configuration is constructed by the following method. The practical core of the present invention lies in this construction method. Hereinafter, description is made mainly with reference to FIG. 4 .

The step of building the ground 19 on which the rail 5 is installed is preceded. The ground 19 is composed of gravel, sand and the like. Concrete mortar is poured to a certain thickness on the compacted ground 19 to install the floor plate 21 (see FIG. 4 (a)).

As shown in FIG. 4 (b), the prefabricated reinforcing bar assembly 23 is seated on the bottom plate 21. The rebar assembly 23 has a three-dimensional shape and is embedded in the concrete ballast 1. As shown, the reinforcing bar assembly 23 may be fixedly installed while being spaced apart at a predetermined height from the bottom plate 21 using the support 24.

The reinforcing bar assembly 23 is pre-manufactured in a factory and is manufactured to an accurate standard. The center of the reinforcing bar assembly 23 coincides with the center of the track. The central point of the reinforcing bar assembly 23 may be marked by a central display unit. In this process, first, the center post 26 may be fixed to the bottom plate 21 at the central position of the rail. This is to make it easy to install the reinforcing bar assembly 23 at the correct position of the bottom plate 21. Along the longitudinal direction of the reinforcing bar assembly 23, a rail seating portion 25 is provided on the left and right sides of the upper portion to serve as a seat for seating the rail 5.

Then, as shown in FIG. 4(c), the prefabricated rail assembly 27 is seated and fixed to the rail seating portion 25 of the reinforcing bar assembly. In this process, the rail is set in the correct position. The height, inclination, spacing, etc. are precisely set.

The rail assembly 27 includes a rail 5, rail fixing blocks 7 and 9 fixed to the left and right sides of the rail 5, and rail mounting plates fixed to the outer sides of the rail fixing blocks 7 and 9, respectively ( 13). In a state where the rail 5 is installed in a predetermined formwork, the liquid polyurethane resin is poured into the formwork, cured, and then the formwork is removed to make the rail fixing blocks 7 and 9 and the rail 5 integrally formed. . The rail mounting plate 13 is also integrated with the rail assembly 27 in the same way, that is, by insert molding.

Also, a rail pad 4 may be additionally fixed to the bottom surface of the rail 5 . As described above, the cover band 6 may be used so that the damper 11 and the rail pad 4 are included in the rail assembly 27 .

The rail pad 4 may be first inserted into the reinforcing bar assembly 23 when the rail assembly 27 is installed.

The rail mounting plate 13 is a steel plate for fixing to the reinforcing bar assembly 23 by welding. However, since the rail mounting plate 13 is in direct contact with urethane, when direct welding is applied, urethane may be deteriorated.

Therefore, according to the present invention, anchor pins 15 are installed outside the rail mounting plate 13 at regular intervals. That is, by welding the anchor pin 15 to the reinforcing bar assembly 23, the rail mounting plate 13 is fixed. As a result, the rail fixing blocks 7 and 9 made of urethane can be protected from heat. The anchor pin 15 serves as anchoring by being driven into the concrete road.

"와 같은 형태로 절곡한 다음 레일설치판(13)에 용접으로 붙인 것이다. 앵커핀(15)을 철근조립체(23)에 고정하는 과정에서 레일조립체(27)를 철근조립체(23)의 정확한 위치에 세팅 및 고정한다. Anchor pin 15 is a reinforcing bar or rod "

It is bent in the same shape and then attached to the rail mounting plate 13 by welding. In the process of fixing the anchor pin 15 to the reinforcing bar assembly 23, the rail assembly 27 is placed in the correct position of the reinforcing bar assembly 23. set and fix on

Subsequently, as shown in FIG. 4(d), side wall formwork 29 is installed on the left and right sides of the bottom plate 21, and concrete is poured into the side wall formwork 29 to install the concrete ballast 1.

And, as shown in FIG. 4(e), the side wall formwork 29 is removed and a road pavement 31 is made with asphalt or the like in its place. Of course, in the case where the rail 5 is installed after excavating the road pavement 31 to a certain depth as described above, the installation of the side wall formwork 29 or the removal of the side wall formwork 29 can be omitted.

As a finishing step, a finish painting (coating) may be applied to the surface of the concrete ballast (1) as a color hardener.

As shown in FIG. 5, the prefabricated rail assembly 27 has a unit length L. And the rail 5 and the rail 5 are linearly connected by welding (W).

When welding the rail 5, the rail fixing blocks 7 and 9 made of resin may deteriorate. Therefore, the rail fixing blocks 7 and 9 are installed except for a certain section (B, for example, 350 mm) at both left and right ends of the rail 5. And the part corresponding to this section (B) is finished by connecting the rail (5) by welding (W) and then filling it with polyurethane resin.

The configuration shown and described above is only a preferred embodiment based on the technical idea of the present invention. Those skilled in the art will be able to make various changes based on common technical knowledge, but it should be noted that these may be included in the protection scope of the present invention. Various combinations of the embodiments disclosed above are possible, and all possible combinations are within the scope of the present invention.

1: concrete roadway 3: rail gutter
4: rail pad 5: rail
6: cover band 7,9: rail fixing block
11: damper 13: rail mounting plate
15: anchor pin 17: reinforcing bar
19: ground 21: bottom plate
23: rebar assembly 24: support
25: rail seating part 26: center post
27: rail assembly 29: side wall formwork
31: road pavement W: welding area

Claims (5)

Building the ground on which the rail 5 is installed; Installing the floor plate 21 by pouring concrete on the built ground;
Seating a prefabricated reinforcing bar assembly 23 on the bottom plate 21;
Setting and fixing the prefabricated rail assembly 27 to an accurate position using the reinforcing bar assembly 23;
Installing side wall formwork 29 on the left and right sides of the floor plate 21 and pouring concrete into the side wall formwork 29 to install the concrete ballast 1;
The rail assembly 27 is manufactured separately at the factory,
rail (5); Rail fixing blocks (7, 9) fixed to the left and right sides of the rail (5); It includes a rail mounting plate 13 fixed to the reinforcing bar assembly 23 as being fixed to the left and right outer sides of the rail fixing blocks 7 and 9;
An anchor pin 15 is installed on the outside of the rail mounting plate 13 by welding so as to be embedded in the concrete ballast 1 and serve as an anchoring;
By fixing the anchor pin to the reinforcing bar assembly 23 by welding;
The rail mounting plate 13 is indirectly fixed to the reinforcing bar assembly 23 by the anchor pin 15;
The anchor pin 15 is a reinforcing bar or rod "

A method of installing a rail for a road tram, characterized in that it is formed by bending in the form of ".
delete According to claim 1,
The rail fixing blocks 7 and 9 are installed at both left and right ends of the rail 5 except for a certain section (B);
The part corresponding to the section (B) is connected to the rail (5) by welding (W), and then filled with polyurethane resin to finish.
According to claim 1,
The rail assembly 27 further includes a rail pad 4 laid on the bottom of the rail and a damper 11 filling a space on the left and right sides of the rail;
The damper 11 is a method of installing a rail for a road tram, characterized in that the hollow pipe or foam. delete

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