KR100405231B1 - An engineering method of a concrete-ballast track - Google Patents

Abstract

The present invention selects a construction section of the railroad tracks made of rails, sleepers, and gravel diagrams, and if the construction section is selected, a process of completely removing the gravel diagrams in the construction section; Process of fastening and fixing separate PC sleepers with dustproof pads on the lower left and right sides on the rails, and when the PC sleepers are fixed on the rails, temporarily connecting the formwork of the synthetic resin material having drainage forming parts at the bottom of the PC sleepers using connecting means. When the process and formwork are connected to the PC sleeper, the side formwork is installed at the right and left sides of the PC sleeper, respectively, and the process of placing the roughened steel concrete at the same time and plastering process. After removing the side formwork and moving to the next construction section, Beating would have to make a gravel ballast track to improve the safety and comfort of the box, saving maintenance costs By replacing presented a concrete bed orbital as well as trains and minimize the generation of dust can comfortably maintain the underground environment.

Description

An engineering method of a concrete-ballast track

The present invention relates to a method of replacing a gravel road track with a concrete road track, and in particular, by replacing a gravel road track section with a semi-permanent concrete road track between AM: 01: 00 ~ 04: 00, which is a stop time during train operation. The present invention relates to a method of replacing a gravel track with a concrete track to reduce the cost of maintenance, improve the safety of the train operation, improve the ride comfort, and minimize the occurrence of dust to keep the underground environment pleasant.

In general, the ballast distributes the load transmitted through the rail and the sleeper to the roadbed by wide distribution, and prevents the movement of the sleeper which may appear as the rail stretching due to the temperature change by the phase shifting force and absorbs the vibration of the vehicle. It is known to perform various roles such as improving ride comfort and facilitating rainwater drainage and preventing weeds from growing. Therefore, the gravel or crushed gravel, which is well equipped with the above characteristics and is easy to obtain, is widely used as a material for the phase, and all sections except the bridge portion of the current subway section are composed of gravel phase tracks.

Looking at the conventional gravel-shaped orbit structure having the purpose as described above, as shown in Figure 1, the sleeper 20 is fastened and fixed to the lower end of the rail 10, the gravel-shaped 30 to the lower side of the sleeper 20 It is laid. When the vehicle is driven in this state, when the load of the vehicle is applied to the rail 10, the gravel phase 30 is evenly distributed with the sleeper 20 to the roadbed.

This conventional gravel bed 30 has the advantage that it can achieve the desired purpose, but when used for a long time, the gravel is broken and abraded into fine particles and the drainage can be worsened by the inflow of soil as well as to lose elasticity due to this hardening do.

At this time, gravel or gravel must be changed, so a lot of manpower is required, and even if you work, there was a lot of difficulty in getting time due to the increase in the number of trains.

In addition, as the gravel becomes granular, the drawing functions such as friction and shock absorption are remarkably degraded, which makes it difficult to ensure the safety of train operation, and the ride comfort is also deteriorated. Various problems have arisen.

Therefore, the object of the present invention was devised in view of the above-mentioned conventional problems, and maintained by replacing the gravel road track section with a semi-permanent concrete road track between AM: 01: 00 ~ 04: 00, which is a stop time during train operation. In addition to reducing maintenance costs, it also provides a construction method for replacing gravel tracks to concrete tracks to ensure the safety of the train operation, ride comfort, and minimization of dust to keep the underground environment comfortable.

1 is a cross-sectional view of a conventional gravel road,

Figure 2a, Figure 2b is a process diagram showing the construction process of the concrete phase track in accordance with the present invention in sequence.

(Explanation of symbols for the main parts of the drawing)

10; Rail 100; Anti-vibration pad 200; PC sleeper

220; Fastening member 300; Formwork 310; Drainage path forming part

320; Connection means 400; Side formwork 500; Concrete

510; drain

The present invention as a means for achieving the above object, the process of selecting a construction section of the entire track consisting of rails, sleepers, gravel diagram, and if the construction section is selected, the process of removing the gravel diagram in the construction section,

When the gravel pattern is rolled up, the sleeper is separated and removed from the rail and the PC sleeper which is suitable for the concrete pattern and has a dustproof pad on the left and right sides is fastened and fixed to the rail.

When the PC sleeper is fixed to the rail process of temporarily connecting the formwork of the synthetic resin material having a drainage forming portion at the bottom of the PC sleeper using a connecting means,

When the formwork is connected to the PC sleeper, the side molds are installed at the left and right sides of the PC sleeper at the same time, and then the cemented steel concrete is laid and plastered at the same time.

After a certain period of time, when the rough steel concrete hardens, remove the formwork and the side formwork, move to the next construction section, and go through the series of steps as described above, so that the gravel drawing track is replaced with the concrete drawing track. It is a basic feature.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2a, Figure 2b is a process diagram showing the construction process of the concrete phase track in accordance with the present invention, in order to replace from the gravel phase 30 track to the concrete phase 500 track, first to the first steel concrete, and the first steel concrete PC sleeper 200, which is separately manufactured to be suitable and dustproof pad 100 is coupled to the bottom left and right, and cured into a concrete phase 500 when pouring the rough steel concrete, drainage forming portion so that the drainage path 510 can be formed Formwork 300 and side formwork 400 having 310 are mobilized by default.

Process chart

-As before, select a construction section among all the tracks consisting of the rail 10, sleeper 20, and gravel drawing 30, and if the construction section is selected, use the equipment to completely roll the gravel drawing 30 in the construction section. (The rail 10 and sleeper 20 at this time are in a state of being floated in the air without falling down because only the gravel phase 30 in the construction section is rolled out of the whole section.)

-When the gravel phase 30 is rolled as described above, the conventional sleeper 20 is separated and removed from the rail 10, and then the PC sleeper 200 having the dust pad 100 coupled to the lower left and right sides at the bottom of the rail 10. Fasten and fix integrally using the fastening member 220.

-When the PC sleeper 200 is fixed integrally with the rail 10, by using the connecting means 320 to temporarily connect the formwork 300 of the synthetic resin material having a drainage forming portion 310 at the bottom of the PC sleeper 200. .

-When the formwork 300 is connected to the PC sleeper 200, each side of the formwork 400 is installed at regular intervals on the left and right sides of the PC sleeper 200, and then laid at the same time as the cemented steel concrete.

-When a certain time (about 30 minutes) elapsed when the rough steel concrete is hardened, removing the formwork 300 and the side formwork 400 is cured as a concrete phase (500), the middle of the concrete phase (500) upper drainage ( 510 is formed.

If a part of the construction section is partially replaced from the gravel drawing 30 to the concrete drawing 500 through the same process as described above, the neighboring construction section moves to the next construction section, and then goes through a series of processes as described above. And because the drainage 510 is continuously connected, the connector galley phase 30 track is replaced by the concrete phase 500 track.

When the load is transmitted to the rail when the vehicle is operated in a state where all sections or some sections are replaced with the concrete diagram 500 through the series of processes as described above, the concrete diagram 500 distributes the load together with the PC sleeper 200. In addition, the anti-vibration pad 100 effectively absorbs vibrations to minimize ground vibrations transmitted to buildings or houses on the track side, and rainwater is easily drained through the drainage channel 510.

As described above, according to the present invention, since the gravel phase track section is replaced with a semi-permanent concrete phase track, maintenance costs are reduced because it does not have to be gravel or changed as in the prior art.

In addition, due to the characteristics of concrete, less vibration and shaking on the road, it is possible to secure safety and ride comfort while driving the vehicle, as well as to minimize the occurrence of dust and to maintain the underground environment comfortably.

The present invention has been described above with reference to specific preferred embodiments, but the present invention is not limited to the above embodiments and various changes and modifications may be made by those skilled in the art without departing from the gist of the present invention. Make sure you can.

Claims (1)

Selecting a construction section among all tracks consisting of rails, sleepers, and gravel diagrams, and if the construction section is selected, completely removing the gravel diagrams in the construction section; When the gravel phase is rolled off, the sleeper is separated from the rail and removed, and at the same time, a step of fastening and fixing a separate PC sleeper suitable for the concrete phase and having dustproof pads on the lower left and right sides on the rail; A step of temporarily connecting the formwork of the synthetic resin material having a drainage forming portion at the bottom of the PC sleeper using a connecting means when the PC sleeper is fixed to the rail; When the formwork is connected to the PC sleeper, the side molds are installed at regular intervals on the left and right sides of the PC sleeper, and then the cemented concrete is laid and plastered at the same time; When the roughened steel concrete hardens after a certain period of time, remove the formwork and the side formwork, move to the next construction section, and go through a series of processes as described above. Replacement of in-track to the in-track concrete track.