KR20030039323A - Mat for soundproofing and vibration-proofing of railway track - Google Patents

Abstract

PURPOSE: A soundproofing and vibration-proofing mat for a railroad track is provided to block the noise or vibration caused by the operation of trains and to prevent the damage of a slab concrete caused by mending equipment. CONSTITUTION: The soundproofing and vibration-proofing mat(200) for a railroad track is formed by weaving many unit geo-textile tube type structures(201) rectangularly and installed between a gravel roadbed of a track and a concrete slab under the roadbed to prevent the noise and vibration of a railroad.

Description

Mat for soundproofing and vibration-proofing of railway track}

The present invention relates to a mat for soundproofing and dustproofing of railroad tracks, in particular, which is generated when the train is stopped, started, and passed by being installed at the lower part of the track such as a loading / unloading station equipped with facilities such as a station office or an underground shopping mall. The present invention relates to a railway track soundproofing and dustproof mat that blocks noise or vibration and prevents damage to slab concrete in the lower part of the roadway by the repair equipment during repair of the track.

In general, in the case of unloading stations (e.g., Sindorim Station, Sosa Station, etc.) where a railway station is located on a high-rise slab and a station office, a shopping mall, or a passenger passage is located below it, the train stops, starts and passes. Due to the high noise and vibration of the city, noise and vibration damage continues to be caused to the station workers, business owners and passengers using the station.

On the other hand, the general structure of the railway tracks, as shown in Figure 1, on the solid roadbed 101 laid a bed 102 at a predetermined thickness, and laid a sleeper 103 at regular intervals thereon on the sleeper 103 Two rows of rails 104 are fastened in parallel at predetermined intervals, and together with the roadbed 101 below the construction surface, the upper part of the island 102, which plays an important role of directly supporting the train load, is collectively referred to as a track. That is, the track is in direct contact with the wheels of the train to provide a rail (104) and a rail to the rail 104 at the bottom of the rail 104 to share the load of the train (103) ), A fastener 105 for coupling the rail 104 and the sleeper 103, and a gravel (or concrete) phase 102 installed to support the lower and side portions of the sleeper 103.

When repairing the railway track as described above, when replacing gravel by the gravel drawing cleaner equipment among the track repair equipment or removing the stone powder caused by the gravel crushing, The slab is damaged, which causes cracks in the slab, which causes the slab to corrode by the infiltration water penetrating into the gap. The corroded reinforcing bar has about 9% of expansion force compared to before corrosion, which leads to further cracking of concrete, and water penetrating into the crack cracks expands in winter to deteriorate the internal structure of the concrete slab. . In addition, the railway track gravel is crushed and crushed by the continuous load of the train and proceeds to the stone powder, and the calcite contained in the stone powder is combined with and solidified with the concrete slab when mixed with water due to rain or snow, the elasticity of the track itself. This decreases, and the drainage is poor, the track will be flooded during heavy rains, causing serious problems in the signal system of the railway.

The present invention has been made in view of the above matters, is installed in the lower portion of the track to block the noise or vibration generated when the train stops, starts, and passes, while the lower part of the injured by the repair equipment during the maintenance of the track The purpose is to provide soundproofing and dustproof mats for railway tracks that can prevent damage to the slab concrete.

1 is a view showing the track structure of a typical railway track.

Figure 2 is a view showing the structure of the soundproofing and dustproof mat of the railroad tracks according to the present invention.

3 is a view showing a state in which the soundproofing and dustproof mat of the railroad track according to the present invention is installed between the upper and lower roads and the concrete slab of the railroad track.

Figure 4 is a view showing an example in which the soundproofing and dustproof mat of the railway track according to the invention is employed in loading and unloading history.

<Explanation of symbols for the main parts of the drawings>

101 Roadbed 102

103 ... Sleep 104 ... Rail

105 ... fastener 200 ... (invention) mat

201 ... unit Geotextile tubular structure 300 ... concrete slab

In order to achieve the above object, the soundproofing and dustproof mat of the railroad track according to the present invention is installed between the railroad track and the concrete slab of the lower part of the rail to prevent noise and vibration caused by the operation of the railroad car. ,

A number of unit geotextile tubular structures have an arrangement structure in the orthogonal state with each other and are alternately overlapped to form a mat-like structure as a whole.

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

2 is a view showing the structure of the soundproofing and dustproof mat of the railroad track according to the present invention.

2, the soundproofing and dustproof mat 200 of the railroad track according to the present invention is a plurality of unit geotextile tubular structure 201 has an arrangement structure of the orthogonal state with each other alternately weaved in an overlapping manner as a whole It is a structure of a mat form. Here, the mat 200 is made of a size of about 5mm in thickness, about 10m in length.

3 and 4, the mat 200 of the present invention is installed between the gravel island 102 and the concrete slab 300 in the lower portion 102 of the railway track of the loading and unloading station of the railway vehicle Noise and vibration caused by the operation of the will be prevented. At this time, the mat 200 is preferably installed over the entire upper surface of the concrete slab (300).

When the mat 200 of the present invention installed as described above is subjected to the vehicle axial force by the load of the train, the mat 200 is compressed to attenuate the vibration generated by the stopping, starting and running of the train, Absorb and mitigate noise generated by friction. That is, the noise generated by the friction between the wheels of the train and the rail 104 is transmitted to the concrete slab 300 through the gravel of the rail 104 and the sleepers 103 and the statue 102, in which the noise The geotextile mat 200 is passed through, whereby the air is absorbed and attenuated by the air layer of each unit of the geotextile tubular structure of the mat 200 to mitigate the overall size of the noise.

In addition, such a mat 200 is to prevent the scraping or taking the surface of the concrete slab 300 when the end of the sharp iron mechanism of the gravel cleaner in track repair equipment to perform the work of picking the gravel concrete slab ( It is possible to prevent the occurrence of cracks in 300).

On the other hand, orbital gravel is interlaced with each other, and as time passes due to the impact of vehicle loads and abrasion due to friction between each other, it becomes finely divided into stone powder, and the stone powder meets the infiltration water such as rainwater. It is solidified on the surface of the concrete slab 300 will adversely affect the track and the concrete slab (300). However, in the state in which the mat 200 of the present invention is installed on the concrete slab 300, such a stone powder is separated from the concrete slab 300 to prevent the powder from being solidified on the surface of the concrete slab 300. .

In addition, the geotextile mat 200 as described above also has a function to smoothly drain the water penetrated by rain or snow, according to which the drainage is poor, so that the track is flooded during heavy rains, serious problems in the signal system of the railway It can also be prevented from being caused.

As described above, the soundproofing and dustproof mat of the railroad track according to the present invention has a plurality of unit geotextile tubular structure is made of one mat-like structure woven alternately while having an arrangement structure of orthogonal state to each other When the railroad track is installed between the railroad track and the concrete slab underneath it, it blocks the noise or vibration generated when the train stops, starts, and passes. There is an advantage to prevent wearing. In addition, by separating the stone powder and concrete slab caused by the crushing of the gravel for the prevention of stone to prevent the solidification of the stone powder on the slab surface, and to smooth the drainage of water penetrated by rain or snow, the railroad signal system due to the flooding of the track There is also the effect of preventing paralysis in advance.

Claims (1)

It is installed between the rail track and the concrete slab at the bottom of the rail to prevent noise and vibration caused by the operation of the rail car. A plurality of unit geotextile tubular structures having mutually orthogonal arrangement structure and weaved in an alternating overlapping manner to form a single mat-shaped structure as a whole railway track soundproofing and dustproof mat.