KR20120111056A - Drainage board for ballast of railway bridge and construction method of improving drainage using the same - Google Patents

Abstract

PURPOSE: A drain board for a railway bridge and a method for improving drainage using the same are provided to prevent damage to a sleeper, a rail, and a rail fastening device by installing the drain board under a ballast bed of a railway bridge. CONSTITUTION: A drain board for a railway bridge comprises a rugged plate(210) and a porous geotextile(220). The rugged plate is formed by forming multiple protrusions(212) on the top surface of a flat plate(211). The porous geotextile is attached to the top surface of the protrusions of the rugged plate, and the edge thereof is coupled to the edge of the flat plate of the rugged plate.

Description

Drainage board for ballast of railway bridge and construction method of improving drainage using the same}

The present invention relates to a drainage plate for railroad guided bridges and a drainage improving method using the same, by installing a drainage plate at the bottom of a gravel road of a railroad bridge so that rainwater flowing in rainy weather can be smoothly discharged into a drainage pipe formed in a bridge. It can reduce manpower and cost required to prevent Bunny by suppressing Bunny phenomenon in which fine particles are ejected together with water on the road or rail of railroad, and prevent the damage of rails, fasteners and sleepers, etc. The present invention relates to a drainage plate for railroad guided bridges that can increase the level, and a drainage improvement method using the same.

In general, a rail of a railroad is laid with gravel on a concrete floor or ground which has been cut or chopped, and the sleepers are laid side by side at regular intervals, and then the rails are fixed on the sleepers. And the splitter and expansion joint portion of the rail rail is configured to couple the rail fastener to the upper surface of the sleeper to secure the rail and the rail is fixed thereon.

In particular, the railway rails installed in the bridge section of the induction phase become bridges and beams that constitute the bridges, and the rails are fixed on the sleepers after laying gravel on the upper surface of the slab concrete and laying the sleepers thereon. To achieve.

And the railway guide bridge is composed of the beam of the bridge on the top of the pier 12 as shown in Figure 1, the beam is bonded to the steel girder, steel box-type girder or concrete composite girder, etc. and cast slab concrete (10)? The basic bridge is formed.

And the both sides of the slab concrete 10 is formed with a drain hole 11 for discharging rainwater, the gravel phase 20 is filled on the upper surface of the slab concrete 10 is installed so that the sleeper 30 is buried thereon The rail 40 is installed thereon and fixed by the fastening device.

Thus, the rainwater flowing in the rain flows down along the pores of the gravel island 20 and flows into the drain 11 to be discharged out of the bridge.

At this time, the phase of the railroad induction phase bridge is mainly composed of gravel phase, and the phase plays a role of distributing the load of the train which the sleeper receives on the railroad track widely on the roadbed.

In addition to transferring the load to the roadbed, the roadway prevents the movement of sleepers that may appear due to the expansion and contraction of rails, absorbs vibrations caused by the movement of trains, and improves the ride quality. It serves to facilitate.

It also prevents grass from growing and prevents rails from rising due to winter frost.

However, gravel roads are worn by vibration and loads due to repeated movement of trains for long periods of time, and fine grains are formed, and drainage of bridges is blocked due to bullets, dirt, or wind carried by trains. It flows through the pores on the gravel and is not discharged to the drain, but stays inside the gravel.

As a result, mud pumping, a phenomenon in which fine grains are ejected upwards to the surface of the gravel road with water accumulated inside the gravel road due to the vibration of the train, is generated.

That is, the rainwater flowing in rainy weather is not made smoothly, the bunnies are generated, and the fine grains are ejected to the upper surface of the gravel bed, sleepers and rails by the Bunny phenomenon, and many problems are caused by the dryness and fixation.

As a problem due to the Bunny phenomenon, the gravel around the sleeper is fixed and the elasticity is reduced, the sleeper is broken or the rail is deformed, the rail surface is worn and the rail fastener is broken.

In addition, deformation, sinking or buckling of the rail may occur, which may result in a serious accident that facilitates derailment of the train.

In addition, there is a problem in that a lot of manpower and cost is consumed by performing the removal and backfilling of the gravel to prevent bunny.

Therefore, in order to prevent the generation of bunnies, drainage should be made smoothly and the drains of bridges should not be blocked.

By the way, the drainage plate used for drainage of the conventional building basement is installed in the water tank by installing the drainage plate 60 in the middle so as not to enter the floor concrete 70 by blocking the groundwater penetrated in the slab concrete 50 as shown in FIG. 80) is formed as a structure in which groundwater is collected, which is difficult to apply for drainage of bridges on railway induction.

The present invention has been made in order to solve the problems as described above, the object of the present invention is to be configured in the lower gravel of the railway guide bridge to fine particles are filtered and the water can be drained smoothly so that the drain is not clogged It is to provide a drainage plate for railroad guided phase bridges that can prevent the Bunny phenomenon by preventing rainwater from accumulating inside the gravel road.

In addition, by installing the drainage plate in the lower section of the gravel on the railway guide bridge to prevent drainage by installing the drainage smoothly, thereby preventing sleeper damage, deformation of the rail, wear of the rail surface, and damage of the rail fastening device. It is to provide a drainage improvement method using a drainage plate for railway guided bridges.

In addition, it is to provide a drainage improvement method using the drainage plate for railroad guided bridge that can reduce the manpower and cost required to remove and backfill gravel road by preventing bunny.

Drain plate for railroad guided bridge of the present invention for achieving the above object,

An uneven plate 210 having several protrusions 212 formed on an upper surface of the flat plate 211; And porous geotextiles 220 which are in close contact with the top surfaces of the protrusions 212 of the uneven plate 210 and whose edges are coupled to the outer side of the plate 211. And a control unit.

In addition, the drain plate 200 is characterized in that the through-hole 213 is formed in a portion where the protrusion 212 of the plate 211 is not formed.

In addition, the geotextiles 220 is characterized in that the FINON (FINON).

In the drainage improvement method using the drainage plate for railway guided bridge,

Removing the gravel phase 300 on both sides of the sleeper 400 of the bridge section A10 (S10); Drilling the blocked drain hole 110 of the bridge (S20); Disposing a drain plate (200) on the upper surface of the slab concrete (100) to both sides of the sleeper (400) (S30); And filling the gravel phase 300 of the high quality on the drainage plate 200 (S40); And a control unit.

In addition, the step (S50) of removing the gravel phase 300 on both sides of the sleeper 400 of the connecting portion (B10) in contact with the bridge; Disposing a drain plate (200) on an upper surface of the bedside (600) to both sides of the sleeper (400) (S60); And filling step (S70) of the high quality gravel phase 300 on the drain plate (200); Is further performed.

In addition, in the step (S60) of disposing the drain plate 200 on the upper surface of the roadbed 600 to both sides of the sleeper 400, the drain plate 200 is extended to the horizontal portion (B11) and the vertical portion (B12) It is characterized by.

The present invention has been made to solve the problems as described above, the drainage plate for railroad guided bridge of the present invention and drainage improving method using the same,

The drainage plate is installed at the lower part of the gravel road of the railroad in the railroad to filter out fine particles and the water can be drained smoothly so that the drain hole is not blocked. have.

In addition, by installing the drainage plate at the bottom of the gravel on the bridge in order to prevent drainage by preventing drainage, it is possible to prevent sleeper damage, rail deformation, rail surface wear, and rail fastening device. There are advantages to it.

In addition, there is an advantage that can reduce the manpower and materials required for reducing the removal and backfilling of the gravel by preventing the bunny and reduce the musculoskeletal disorders of the workforce.

1 is a cross-sectional view showing a drainage structure of a conventional railroad guided bridge.
Figure 2 is a cross-sectional view of the drainage plate is installed on the basement floor concrete of the conventional building.
3 is a cross-sectional view showing a drain plate for induction bridge bridge of the present invention.
Figure 4a is a perspective view of the uneven plate of the drain plate according to the present invention.
Figure 4b is a perspective view of the concave-convex plate of another embodiment of the drain plate according to the present invention.
Figure 5a is a cross-sectional view before construction of the drainage improvement method of the railroad guided bridge according to the present invention.
Figure 5b is a cross-sectional view of the state removing the gravel phase of both sides of the sleeper according to the present invention.
Figure 5c is a cross-sectional view of the perforated drain and installing a drain plate in accordance with the present invention.
Figure 5d is a cross-sectional view filled with gravel on the drain plate according to the present invention.
6 is a partially enlarged view of FIG. 5d showing a drainage flow according to the present invention;
7 is a top plan view showing the drainage flow according to the present invention.
8 is a top plan view showing a state in which a drain plate is additionally installed in a connection unit according to the present invention;

Hereinafter, with reference to the accompanying drawings, the drainage plate for railroad guided bridges and drainage improving method using the same of the present invention as described above will be described in detail.

3 is a cross-sectional view showing a drain plate for induction bridge bridge according to the present invention.

An uneven plate 210 having several protrusions 212 formed on an upper surface of the flat plate 211; And porous geotextiles 220 which are in close contact with the top surfaces of the protrusions 212 of the uneven plate 210 and whose edges are coupled to the outer side of the plate 211. It is made, including.

As shown in FIG. 4A, the uneven plate 210 includes a plurality of protrusions 212 formed side by side in the length and width directions at regular intervals on an upper surface of the plate 211 formed of a flat plate.

The protrusion 212 is shown as a cup shape in Figure 4 but can be made in various forms such as a cylinder, a square pillar, the upper surface of the protrusion 212 is a gravel load and the tensile strength of the geotextile 220, etc. In consideration, it is desirable to have a flat shape to have an appropriate cross-sectional area.

In addition, the protruding portion 212 may be formed in a hollow shape such as a cup, and in this case, the protrusion 212 should have sufficient strength in consideration of the load on the gravel.

In addition, the porous geotextiles 220 are coupled to the top surface of the protrusions 212 formed on the uneven plate 210 so as to be in close contact with each other, and an edge thereof is configured to be coupled to the outside of the uneven plate 210.

At this time, the portion of the geosynthetic fiber 220 is coupled to the outer surface of the uneven plate 210 in Figure 3 is shown to be coupled to a portion of the geotextile 220 on the outer upper surface of the uneven plate 210 It may be coupled to the side of the uneven plate 210 and must be firmly coupled so as not to fall.

Thus, the railway drainage plate 200 of the present invention is passed through the porous geosynthetic fiber 220, but fine grains are filtered, and the passed water may flow into the space between the protrusions 212. Will be.

At this time, the drainage plate 200 is formed so that the geotextile 220 is positioned upward and the plate 211 of the uneven plate 210 is blocked, fine particles with water from the top of the geotextile 220 When the minute flows in, the fine particles are filtered from the geotextiles 220, and only water passes through the protrusions 212 inside the drainage plate 200.

In addition, the water flowing between the protrusions 212 in the state in which the drainage plate 200 is continuously arranged passes through the geotextiles 220 on the side surface to the side surface of the geotextiles 220 of the drainage plate 200. It is introduced to form a structure flowing between the protrusions 212.

In addition, the drainage plate 200 may have a through hole 213 formed in the plate 211 of the uneven plate 210 as shown in FIG. 4B, and the through hole 213 has no protrusion 212 formed therein. Is formed on the part.

In this case, the through hole 213 should be formed inside the portion where the geotextile 220 is coupled to the outer side of the uneven plate 210.

That is, the drain plate 200 in which the through hole 213 is formed is disposed at a portion having the drain hole 110 of the bridge so that water flowing into the drain plate 200 flows along the through hole 213. To flow).

In addition, the geotextile 220 is a composite of polypropylene (poIypropylene), polyester (polyester), polyethylene (polyethylene), polyacrylonitrile or nylon (nylon) to filter fine particles and pass water Geotextiles, which are porous products formed by weaving fibers, can be used.

In addition, FINON may be used as the geotextile 220.

Unlike the conventional single fiber nonwoven fabric of FONON, FINON is a polyester 100% long fiber nonwoven fabric developed by Kolon Co., Ltd., and spunbonded polyester filaments form a sheet in a single continuous process. Geotextile is a geotextile with excellent mechanical strength and weather resistance.

In addition, the FINON forms a sheet in a single continuous process so that the tensile strength is high, the abrasion resistance is excellent, and the support between the fibers is excellent, and there is almost no change in deformation and physical properties even when installed for a long time.

In addition, it is composed of 100% polyester having the best weather resistance, chemical resistance, heat resistance and the like among various synthetic fibers, and has a feature of having excellent function without being weak even under difficult conditions underground.

In addition, the polyester filament is continuously stacked and has excellent water permeation performance in the vertical and horizontal directions. It shows excellent drainage and filter effects. There is a characteristic.

And drainage improvement method using the drainage plate for railroad guided phase bridge of the present invention, the step of removing the gravel phase 300 on both sides of the sleeper 400 of the bridge section (A10) (S10); Drilling the blocked drain hole 110 of the bridge (S20); Disposing a drain plate (200) on the upper surface of the slab concrete (100) to both sides of the sleeper (400) (S30); And filling the gravel phase 300 of the high quality on the drainage plate 200 (S40); It is made, including.

Existing railway guided bridge has a state in which the air gap between the drain hole 110 and the gravel diagram 300 near the drain hole 110 is blocked by fine particles as shown in FIG. 5A before the drainage improvement construction. do.

Thus, water accumulates on the upper surface of the slab concrete 100 of the bridge or the lower part of the sleeper 400, and the Bunny is generated by the load and vibration transmitted to the rail 500 when the train moves.

Therefore, as shown in Figure 5b to remove the gravel phase 300 containing fine particles through the step (S10) of removing the gravel phase 300 on both sides of the sleeper 400 of the bridge section (A10).

At this time, except the gravel phase 310 is formed on the lower side of the sleeper 400, removes the gravel phase 300 on both sides of the sleeper 400, the part where bunny is generated is the gravel phase (below the sleeper 400) 310) some may be further removed.

Then, after removing the gravel phase 300, through the step (S20) for drilling the blocked drain hole 110 of the bridge, the water is discharged to the outside of the bridge by drilling the drain hole 110 blocked with fine-grained particles, gravel or foreign matter. .

And in the step (S30) to arrange the drain plate 200 on the upper surface of the slab concrete (100) to both sides of the sleeper 400, as shown in Figure 5c several drain plates 200 are arranged side by side and the drain hole 110 ) To cover.

At this time, the drainage plate 200 is a geotextile 220 facing the upper surface and each drainage plate 200 is disposed so that the side adjacent to each other in close contact.

In addition, the drainage plate 200 disposed to cover the drainage port 110 uses a drainage plate 200 having a through hole 213 formed in the uneven plate 210, and the drainage water 110 and the through hole 213 are formed. Adjust the position to correspond.

Alternatively, after the drain plate 200 having the through hole 213 is not formed as a whole, the drain plate 200 is removed to remove the drain plate 200 disposed on the drain hole 110 so as to correspond to the position of the drain hole 110. The through hole 213 may be formed in the uneven plate 210 of FIG.

After disposing the drain plate 200 as described above, the drainage improvement construction is completed through the step (S40) of filling the high-quality gravel diagram 300 as shown in FIG. 5D.

At this time, the high-quality gravel drawing 300 filled in step S40 is resistant to weathering and wear resistance is excellent, even if the repetitive load and vibration caused by the movement of the train acts as a fine particle is less generated because it does not produce bunny It is preferable to use a new gravel phase (300) instead of the gravel phase (300) containing fine grains removed in step S10.

By the way, when refilling the gravel phase 300 removed in step S10 rather than the new high-quality gravel phase 300 should be used after removing the fine-grained particles contained in the gravel phase 300 through gravel.

Thus, the water flowing in as shown in Figure 6 flows along the pores of the gravel island (300, 310) through the geotextile 220 of the drainage plate 200 is filtered fine particles and flows only between the water passing through the projections (212) It is configured to flow into the drain 110 through the through-hole 213.

And the drain plate 200 is continuously installed in the bridge section (A10) as shown in Figure 7 through the several drain holes 110 formed on both sides of the bridge is smoothly made.

In addition, the step (S50) of removing the gravel phase 300 on both sides of the sleeper 400 of the connecting portion (B10) in contact with the bridge; Disposing a drain plate (200) on an upper surface of the bedside (600) to both sides of the sleeper (400) (S60); And filling step (S70) of the high quality gravel phase 300 on the drain plate (200); May be further performed.

That is, in order to drain water to both sides of the railway track of the connection portion B10 without water flowing into the bridge portion A10 from the connection portion B10 connected to the bridge section A10 as shown in FIG. The drainage plate 200 may be additionally installed at the lower side of the gravel drawing 300 on both sides of the sleeper 400 of B10).

Here, the roadbed 600 is a foundation cut or raised ground, etc., and removes the gravel bed 300 on both sides of the sleeper 400 of the gravel bed 300 laid on the upper part of the bed 600 and the bridge After the drain plate 200 is disposed on the upper surface of the subgrade 600 so as to extend to the drain plate 200 disposed in the section A10, the high quality gravel drawing 300 is refilled on the drain plate 200.

At this time, the high-quality gravel phase (300) also uses a new gravel phase (300) that does not contain fine-grained particles, when refilling the gravel phase (300) removed in step S50 rather than the new high-quality gravel phase (300) The gravel should be used after removing the fine particles contained in the gravel phase (300).

In addition, in the step (S60) of disposing the drain plate 200 on the upper surface of the roadbed 600 to both sides of the sleeper 400, the drain plate 200 is extended to the horizontal portion (B11) and vertical portion (B12) In the step, the connecting portion (B10) in the portion connected to the bridge section (A10) in contact with the drain plate 200 installed in the bridge section (A10) to extend horizontally installed by extending a predetermined length in the horizontal portion (B11) Can be.

At this time, the length of the horizontal portion (B11) to which the drainage plate 200 is extended is in the range of 5m to 10m and the extension length in consideration of the characteristics of the connection portion (B10) roadbed 600, drainage environment and regional characteristics. Can be selected.

In addition, the drain plate 200 is installed in the vertical portion B12 perpendicular to the bridge in contact with the bridge section A10 so that the water flowing into the connection section B10 flows into the bridge section A10. Instead, it is configured to be drained to both sides of the roadbed 600 along the drain plate 200 installed in the vertical portion (B12) to facilitate the drainage of the bridge on the railroad guidance.

Thus, by installing a drain plate at the bottom of the gravel road of the railway guide bridge, fine particles can be filtered out and the water can be drained smoothly so that the drain hole is not blocked so that water does not accumulate inside the gravel road to prevent the Bunny phenomenon. .

In addition, by installing the drainage plate in the lower section of the gravel on the railway guide bridge to prevent drainage by installing the drainage smoothly, thereby preventing sleeper damage, deformation of the rail, wear of the rail surface, and damage of the rail fastening device. can do.

In addition, it is possible to reduce the manpower and materials required for the removal and backfilling of the gravel by preventing the bunnies, it is possible to reduce the musculoskeletal disorders of the workforce.

And the drainage plate for railway guided bridge of the present invention and drainage improving method using the same, not only can be applied to the existing railway guided bridge, but also completed the upper slab concrete of the newly installed railway guided bridge and formed a drain hole After that, the drainage plate may be placed on both sides of the slab concrete, filled with gravel, and sleepers and rails may be installed to have an improved drainage structure.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. It goes without saying that various modifications can be made.

100: slab concrete
110: drain hole
200: drain plate
210: uneven plate 211: plate
212: protrusion 213: through hole
220: geotextile
300: gravel statue 310: gravel statue
400: sleeper
500: rail
600: roadbed
A10: Bridge section
B10: connection
B11: horizontal portion B12: vertical portion

Claims (6)

An uneven plate 210 having several protrusions 212 formed on an upper surface of the flat plate 211; And porous geotextiles 220 which are in close contact with the top surfaces of the protrusions 212 of the uneven plate 210 and whose edges are coupled to the outside of the plate 211. Drain plate for railroad guided bridge characterized in that comprises a.
The method of claim 1,
The drainage plate 200 is a railway drainage bridge, characterized in that the through-hole 213 is formed in a portion where the protrusion 212 of the plate 211 is not formed.
The method according to claim 1 or 2,
The geotextile 220 is a drain board for induction bridge bridge, characterized in that the FINON (FINON).
In the drainage improvement method using the drainage plate for railway guided bridge,
Removing the gravel phase 300 on both sides of the sleeper 400 of the bridge section A10 (S10); Drilling the blocked drain hole 110 of the bridge (S20); Disposing a drain plate (200) on the upper surface of the slab concrete (100) to both sides of the sleeper (400) (S30); And filling the gravel phase 300 of the high quality on the drainage plate 200 (S40); Drainage improvement method using the drainage plate for railroad guided bridge comprising a.
The method of claim 4, wherein
The drainage improvement method is a step (S50) to remove the gravel phase (300) on both sides of the sleeper 400 of the connecting portion (B10) in contact with the bridge in succession; Disposing a drain plate (200) on an upper surface of the bedside (600) to both sides of the sleeper (400) (S60); And filling step (S70) of the high quality gravel phase 300 on the drain plate (200); The drainage improvement method using the drainage plate for railroad guided bridge, characterized in that is further performed.
The method of claim 5,
The drainage improving method is in the step (S60) of disposing the drain plate 200 on the upper surface of the bed 600 to both sides of the sleeper 400, the drain plate 200 to the horizontal portion (B11) and vertical portion (B12) Drainage improvement method using the drainage plate for railway guided bridges, characterized in that the extension is arranged.

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