KR20210147519A - Vibration proof sleeper for replacement of vibration proof box type vibration proof sleeper - Google Patents

Abstract

The present invention relates to a vibration-proof sleeper for replacement construction of a vibration-proof sleeper of a vibration-proof box type, which is rapidly and easily maintained, comprising: a concrete sleeper block; a lattice reinforcing bar structure; an elastic pad; a base plate; a rail pad; a side surface support guide panel; an elastic clamp; and a fastening bolt.

Description

Vibration-proof sleeper for replacement of vibration-proof box-type vibration-proof sleeper

The disclosed content relates to an anti-vibration sleeper that has been installed in a groove on a concrete ballast and replaced with a dust-proof box-type dust-proof sleeper that has lost its original function due to damage or aging.

Unless otherwise indicated herein, the contents described in this identification are not prior art to the claims of this application, and the description in this identification is not admitted to be prior art.

The track structure that is currently widely applied around the world is largely classified into the existing ballast track and the concrete slab track.

Conventionally, gravel road tracks with low initial construction costs have been mainly constructed. However, due to the role of railroad transportation that develops day by day, an increase in vehicle weight, improvement in train speed, and increase in train density are required. Due to the rise of the city and the difficulty in supply and demand of labor, the maintenance of the gravel roadway, which requires constant maintenance, has become very difficult.

Concrete ballast was proposed as a result of continuous R&D and improvement efforts by advanced countries in the world for the development and improvement of vitality tracks that complement these problems of gravel ballast and enable free maintenance.

The concrete ballast track consists of a roadbed reinforced concrete layer (HSB) formed of concrete on a roadbed including a reinforced roadbed layer, and a concrete ballast (TCL) formed of concrete on the roadbed reinforced concrete layer to support sleepers and rails. ; track concrete layer).

Although the initial construction cost of this concrete ballast is higher than that of the conventional gravel ballast, its application is spreading day by day due to the evaluation that it is superior to the gravel ballast in terms of long-term economic feasibility considering the life cycle cost (LCC). is a trend that is becoming

In addition, since the load and resistance of the concrete ballast are very large compared to the gravel ballast, displacement or errors of the track are hardly generated, the driving stability and riding comfort are excellent, and it has advantages in terms of life cycle cost. However, unlike the gravel ballast, the concrete ballast has a disadvantage in that it takes a lot of time and money to install and dismantle the track.

On the other hand, in the concrete ballast track, the policy sleeper system, which supports the rail with a pair of vibration-proof sleepers made of independent concrete blocks, is widely applied.

In this vibration-proof sleeper system for concrete ballast tracks, the concrete ballast and concrete sleeper blocks are separated by embedding the vibration-proof box-type anti-vibration sleeper in which the vibration-proof pad and concrete sleeper block are accommodated in a vibration-proof box, also known as rubber boots, in a groove formed on the concrete ballast. It has a structural feature that is separated by a dustproof box.

The core of the vibration-proof design of the vibration-proof box type vibration-proof sleeper is to reduce the transmission of vibration between the concrete sleeper block and the concrete ballast as much as possible by installing a vibration-proof pad between the concrete sleeper block and the vibration-proof box. Although a thin rail pad is interposed between the rail and the anti-vibration sleeper, the rail pad fundamentally only serves to reduce noise and vibration inside the vehicle by reducing the interaction force between the rail and the wheel.

As an example of a concrete ballast track using a vibration-proof box type vibration-proof sleeper, the so-called STEDEF system developed by STEDEF of France and the Low Vibration Track (LVT) system, a low-vibration track system developed by Sonneville, a US track design company, is an example. can be heard

In the STEDEF system, the vibration-proof box-type vibration-proof sleeper that accommodates the vibration-proof pad and concrete sleeper block in the vibration-proof box is fixedly connected by tie-bars, whereas the LVT system was developed by Roger Sonneville, the developer of the STEDEF system. As a variant of the STEDEF system, the material of the anti-vibration pad is different without using a tie-bar that fixedly connects the dust-proof box-type dust-proof sleeper.

The advantage of the concrete ballast track using the vibration-proof box type vibration-proof sleeper is that it can actually increase the rail weight by the mass of the concrete sleeper block separated from the concrete ballast, and thus can additionally increase the vibration-proof efficiency. The fact that the lateral stability of the rail is high because the vibration-proof box-type vibration-proof sleeper is constrained in the groove on the concrete roadway, and thus a vibration-proof pad with lower rigidity than the vibration-proof pad used for vibration-proof fasteners can be used.

In particular, in the case of the STEDEF system, the concrete ballast track using the vibration-proof box type vibration-proof sleeper is introduced as a vitalization track that can theoretically expect excellent vibration-proofing effect because the concrete sleeper block is elastically supported by the vibration-proof pad. In the case of the LVT system, it has been applied to Seoul Lines 5-8, Busan Line 2, Daegu Line 1, and Daejeon Line 1. However, the STEDEF system was changed to a shoulder buried type so that a coil spring fastening device (e-clip), a domestic general rail fastening device, could be applied instead of the French Nabla fasteners.

As an example of the above-mentioned vibration-proof box-type vibration-proof sleeper for a concrete track track, Korean Patent Laid-Open No. 10-2006-0095891 (published on September 4, 2006) connects the sleeper and the sleeper with a tie bar, and the central part of the cross section of the sleeper is the upper surface and the lower surface. Disclosed is a cross-shaped concrete sleeper, which is wider and has a cross-shaped sleeper by widening the contact surface of the sleeper that meets perpendicularly to the rail.

In addition, Korean Patent Laid-Open No. 10-2002-0090845 (published on February 2, 2002) discloses that it is inserted between the inner bottom surface of the dustproof box provided in the ballast concrete and the bottom surface of the sleeper block, and is made of an elastic material and transmitted through the sleeper block. The first load absorbing means for absorbing the load while being deformed by the directional load, is inserted between the upper surface of the sleeper block and the lower surface of the rail, and is made of an elastic material to absorb the load while being deformed by the vertical load transmitted through the rail. The second load absorbing means, and the third load absorbing means inserted between both sides of the transverse extension of the rail and each clip hanger, and made of an elastic material to absorb the load while being deformed by the lateral load transmitted through the rail; , the lower end of the one side is in close contact with the upper surface of the sleeper block, and the lower end of the other end is coupled to the clip hanger to press and press the upper surface of the transverse extension of the rail to support the rail. Disclosed is a track vibration isolator comprising rail support means for allowing the rail to be displaced in vertical and horizontal directions by vertical and lateral loads, and coupling means for coupling the rail support means to a clip hanger.

In addition, as an example of a vibration-proof box applicable to the above-mentioned vibration-proof box-type vibration-proof sleeper for concrete ballast track, in Republic of Korea Utility Model Registration No. 20-0401015 (published on January 17, 2003), a concrete sleeper block is inserted with an elastic pad interposed at the bottom. A rubber dust-proof box for track accommodated in a rail and having a plurality of concave and convex portions along an inner surface in contact with the concrete sleeper block, characterized by integrally comprising a pin embossed more protruding to a predetermined height on the protrusion of the concave and convex portion A rubber dustproof box for tracks is disclosed.

However, in the case of the conventional anti-vibration box type anti-vibration sleeper as described above, friction between the dust-proof box and the concrete sleeper block due to vertical/left-right movement of the concrete sleeper block and lateral pressure, water or moisture penetrating between the dust-proof box and the concrete ballast, etc. Due to this, there is a problem in that the dust-proof box is worn or damaged, the dust-proof pad is plastically deformed, or the rail pad is damaged, thereby accelerating the progress of the wavy wear of the rail.

In addition, due to aging changes in the material of the dustproof box and the dustproof pad itself, compression changes under load, construction tolerances, floor imbalance of the dustproof box itself, and the void between the floor of the concrete sleeper block and the elastic pad, the dustproof box and the dustproof pad There is a problem in that the damage of the rail occurs, which promotes the progress of wavy wear of the rail, and maintenance such as periodically replacing the damaged dust box and anti-vibration pad is essential.

In addition, in the case of the conventional dustproof box-type anti-vibration sleeper, it is difficult to observe the damage or breakage of the dust-proof box and the dust-proof pad with the naked eye, making it difficult to replace and construct in a timely manner. There is also the problem of not being easy to replace with a vibration-proof sleeper.

1. Korean Patent Publication No. 10-2006-0095891 (published on September 4, 2006) 2. Republic of Korea Patent Publication No. 10-2002-0090845 (published on Feb. 12. 2005) 3. Republic of Korea Utility Model Registration No. 20-0401015 (2003.01.17. Announcement)

As the lower part including the lattice reinforcing bar structure is fixedly coupled to the concrete ballast, the load or impact caused by the passage of railroad vehicles can be supported and absorbed by the lattice reinforcing bar structure, and the upper part where the rail fastening device is installed other than the normal rail pad As the anti-vibration part including the elastic pad is applied, it is easy to understand the damage or damage of the dust-proof part only by visual observation, and it is a dust-proof for replacement construction of the dust-proof box-type dust-proof sleeper so that maintenance can be carried out quickly and easily at the minimum cost. We would like to provide a sleeper.

In addition, it is not limited to the technical problems as described above, and it is obvious that another technical problem may be derived from the following description.

The disclosed subject matter is a vibration-proof sleeper for replacement construction of a vibration-proof box-type vibration-proof sleeper which is constructed by replacing a previously installed vibration-proof box-type vibration-proof sleeper in a groove on a concrete map, wherein the lower part is the concrete diagram from which the vibration-proof box-type vibration-proof sleeper is removed. A concrete sleeper block is inserted and fixed in the groove of the bed by mortar grout, an anchor socket is embedded and fixed therein, and a seating surface is formed on the upper surface by fastening protrusions protruding on both sides of the upper surface, and a pair is spaced apart from the lower part of the concrete sleeper block. and mortar together with the lower side of the concrete sleeper block in the groove on the concrete map from which the vibration-proof box-type vibration-proof sleeper has been removed, the upper part is embedded and fixed in the concrete sleeper block and the lower part protrudes from the concrete sleeper block A lattice reinforcing bar structure inserted and fixed by a grout, an elastic pad stacked on a seating surface of the concrete sleeper block, a base plate stacked on the elastic pad and having a seating groove formed in the center of the upper surface, and seating of the base plate A rail pad laminated in the groove and supported on which the rail is seated, a side support guide panel installed on both sides of the base plate, and both sides of the base plate and on the side support guide panel to press and support both lower sides of the rail One implementation of an anti-vibration sleeper for replacement construction of a dust-proof box-type anti-vibration sleeper, characterized in that it includes an elastic clamp that passes through both sides of the base plate and is fastened to the anchor socket while pressing and supporting the elastic clamp. give an example

According to a preferred feature of the disclosed content, the lattice reinforcing bar structure includes a pair of lower transverse reinforcing bars, an upper transverse reinforcing bar disposed on top of the lower transverse reinforcing bars, and lattice reinforcing bars that integrally connect the lower transverse reinforcing bars and the upper transverse reinforcing bars includes

According to the anti-vibration sleeper for replacement construction of the dust-proof box-type anti-vibration sleeper according to an embodiment of the present disclosure, as the lower part including the lattice reinforcing bar structure is fixedly coupled to the concrete ballast, the load or impact caused by the passage of the railroad car is reduced by the lattice. It can be supported and absorbed by the reinforcing bar structure, and as a vibration-proof part that includes an elastic pad in addition to a normal rail pad is applied to the upper part where the rail fastening device is installed, the vibration-proofing of the upper part is applied even if the conventionally installed vibration-proof box-type vibration-proof sleeper is replaced. It has the advantage of being able to form a highly elastic orbit through the buoyancy.

In addition, according to the anti-vibration sleeper for the replacement construction of the dust-proof box-type anti-vibration sleeper according to an embodiment of the disclosure, after the conventionally installed dust-proof box-type anti-vibration sleeper is replaced and constructed, the same as a rail pad or an elastic pad can be used only by visual observation. It has the advantage that the damage and breakage of the vibration-proof part can be easily identified, and the maintenance of the vibration-proof part can be performed quickly and easily at minimum cost without the need to separate the concrete sleeper block from the groove on the concrete ballast.

Effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

1 is a perspective view of a vibration-proof sleeper for replacement construction of a vibration-proof box-type vibration-proof sleeper according to an embodiment of the disclosed subject matter;
2 is an exploded perspective view of a vibration-proof sleeper for replacement construction of a vibration-proof box-type vibration-proof sleeper according to an embodiment of the present disclosure;
3 and 4 are cross-sectional structural views of a vibration-proof sleeper for replacement construction of a vibration-proof box-type vibration-proof sleeper according to an embodiment of the disclosed subject matter.
5 is an overall process flow chart of the replacement construction of an existing dustproof box-type vibration-proof sleeper using the vibration-proof sleeper according to an embodiment of the disclosed subject matter.
6 is a flowchart of a replacement construction of an existing vibration-proof box type vibration-proof sleeper using a vibration-proof sleeper according to an embodiment of the disclosed subject matter;

Hereinafter, the configuration, operation, and effect of the preferred embodiment will be described with reference to the accompanying drawings. For reference, in the following drawings, each component is omitted or schematically illustrated for convenience and clarity, and the size of each component does not reflect the actual size. In addition, the same reference numerals refer to the same components throughout the specification, and reference numerals for the same components in individual drawings will be omitted.

The anti-vibration sleeper for the replacement construction of the dust-proof box-type anti-vibration sleeper according to an embodiment of the disclosure is constructed by replacing the dust-proof box-type anti-vibration sleeper that has lost its original function due to damage or deterioration after being installed in the groove on the concrete road. It is pre-fabricated prior to replacement.

As shown in Figs. 1 to 4, the anti-vibration sleeper for replacement construction of the dust-proof box-type anti-vibration sleeper according to an embodiment of the present disclosure is a concrete ballast 3 from which the dust-proof box-type anti-vibration sleeper (not shown) is removed from the lower part. ), a concrete sleeper block 10 inserted and fixed by a mortar grout 9 in the groove 5 of the Inserted and fixed by mortar grout 9 together with the lower side of the concrete sleeper block 10 in the groove 5 of the removed concrete ballast 3, the upper part is embedded and fixed in the concrete sleeper block 10, and the lower part is the concrete sleeper block The lattice reinforcing bar structure 20 protruding from (10), the elastic pad 30 stacked on the concrete sleeper block 10, the base plate 40 stacked on the elastic pad 30, and the base plate 40 ), the rail pad 50 stacked on the stacked side, the side support guide panel 60 installed on both sides of the base plate 40, and the elastic installed on both sides of the base plate 40 and the side support guide panel 60 It includes a clamp 70 and a fastening bolt 80 for pressing and fixing the elastic clamp 70 while being fastened to the anchor socket 11 .

Here, the concrete sleeper block 10 forms a body of an anti-vibration sleeper for replacement construction of a dust-proof box-type anti-vibration sleeper according to an embodiment of the disclosure, and the lower part of which is a dust-proof box-type anti-vibration sleeper (not shown) is removed. It is inserted and fixed by the mortar grout 9 in the groove 5 of the concrete ballast 3 and the upper part protrudes to the upper part of the concrete ballast 3 and is exposed.

An anchor socket 11 is embedded and fixed inside the concrete sleeper block 10 . The anchor socket 11 is a part to which a fastening bolt 80 to be described later is fastened and fixed. It is inserted during molding and manufacturing of the concrete sleeper block 10 using concrete and is fixed in the concrete sleeper block 10 by curing the concrete. do.

In addition, on the upper surface of the concrete sleeper block 10, a seating surface 15 for laminating the elastic pad 30 is formed between the binding protrusions 13 while protruding from both sides of the binding protrusions 13.

A pair of lattice reinforcing bar structures 20 are spaced apart from each other in the lower portion of the concrete sleeper block 10 and are arranged side by side in the transverse direction. The lattice reinforcing bar structure 20 supports and absorbs the load or impact caused by the passage of railroad vehicles to prevent cracks in the concrete sleeper block 10 and the mortar grout 9, and to separate the mortar grout 9 during on-site construction. It serves to eliminate the need for rebar work.

Each of these lattice reinforcing bar structures 20 includes a pair of lower transverse reinforcing bars 21, an upper transverse reinforcing bar 23 disposed on the upper part of the lower transverse reinforcing bar 21, and a lower transverse reinforcing bar 21 and upper transverse reinforcing bars Includes a lattice reinforcing bar (25) that is welded to connect (23).

The lattice reinforcing bar structure 20 is preliminarily with the concrete sleeper block 10 so that the upper part is buried and fixed into the concrete sleeper block 10 while the lower part protrudes from the concrete sleeper block 10 during the concrete curing of the concrete sleeper block 10. It is manufactured, and is inserted and fixed by mortar grout (9) together with the lower side of the concrete sleeper block (10) in the groove (5) of the concrete ballast (3) from which the vibration-proof box-type vibration-proof sleeper has been removed.

In addition, the buffer support network 27 may be connected to the upper portion of the upper transverse reinforcement 23 of the lattice reinforcement structure 20 by the vertical support reinforcement 27a. As this buffer support network 27 is supported by a buffer spring 29 buried and fixed in the concrete sleeper block 10, the strength and bearing capacity of the concrete sleeper block 10 are improved, and the concrete sleeper block 10 and mortar grout The occurrence of cracks or breakage in (9) can additionally be prevented.

An elastic pad 30 is laminated on the seating surface 15 of the aforementioned concrete sleeper block 10 . The elastic pad 30 forms an elastic layer separately from the rail pad 50 on the upper side of the concrete sleeper block 10 supporting the rail 7 and at the same time forms a kind of anti-vibration part together with the rail pad 50 . do

The elastic pad 30 reduces vibration and noise transmitted from the base plate 40, which will be described later, and transmits it to the concrete sleeper block 10, and is formed of a synthetic resin material or rubber material capable of reducing vibration and noise. can be In addition, a through hole or side cutout may be formed in the elastic pad 30 so that the fastening bolt 80 penetrates and can be fastened to the anchor socket 11 of the concrete sleeper block 10 .

The base plate 40 is laminated on the aforementioned elastic pad 30 . The base plate 40 forms a seating support surface of the rail pad 50 for supporting the rail 7, and a seating groove 41 for seating support of the rail pad 50 is formed in the center of the upper surface. At both sides of the seating groove 41, stepped portions 33 on which both sides of the lower end (rail feet) of the rail are supported are formed. The step portion 33 may be formed with a receiving groove (33a) in which a portion of the elastic clamp 70 to be described later is accommodated.

In addition, a through hole is formed on both sides of the base plate 40 so that a fastening bolt 80 to be described later passes through and is fastened to the anchor socket 11, and between the base plate 40 and the side support guide panel 60 to be described later. An engaging portion is formed on the base plate 40 and the engaging portion of the side support guide panel 60 to prevent mutual separation of the base plate 40 and the side support guide panel 60, and at the same time, the length of the rail 7 By preventing directional vibration, the corresponding groove-protrusion structure can be formed so as to engage with each other.

The rail pad 50 is stacked in the seating groove 41 of the above-described base plate 40 . The rail pad 50 serves to reduce vibration and noise of the rail 7 as it supports the rail 7 through its own elasticity at the lower portion of the rail 7 , and similar to the elastic pad 30 , a synthetic resin It may be formed of a material or a rubber material, and may be formed of other materials capable of reducing vibration and noise.

Side support guide panels 60 are formed on both sides of the above-described base plate 40 . The side support guide panel 60 is interposed between the binding protrusion 13 of the concrete sleeper block 10 and the base plate 40 so that the base plate 40 vibrates in the width and length directions of the rail 7 . serves to prevent

It is preferable that the side support guide panel 60 is fixedly coupled to both sides of the base plate. It is preferably engaged with the binding protrusion 13 of the concrete sleeper block 10 by means of another engaging part that is engaged with the (40) and secondarily can be formed in a groove-protrusion structure or the like.

In addition, a support jaw 61 on which the other end of the elastic clamp 70 to be described later is supported may be protruded from the upper surface of the side support guide panel 60 .

Elastic clamps 70 are installed on both sides of the base plate 40 and the side support guide panel 60 described above. One end of the elastic clamp 70 presses and supports the upper surface of both lower sides (rail foot) of the rail 7 by its own tension when the fastening bolt 80 is fastened and fixed, and the other end is the upper part of the side support guide panel 60 . By pressing and supporting the surface, the rail 7 is fastened to the concrete sleeper block 10, and it is preferable to have a 'W' shape as a whole.

The elastic clamp 70 can firmly fix the rail 7 as it exerts an elastic fastening support force through the fastening and fixing of the fastening bolt 80 , and also reduces vibration and noise of the rail 7 .

Fastening bolts 80 pass through both sides of the aforementioned base plate 40 and are fastened to the concrete sleeper block 10 . When the fastening bolt 80 penetrates the base plate 40 and is fastened and fixed in the anchor socket 11 in the concrete sleeper block 10, it serves to press the elastic clamp 70 downward.

The elastic fastening force of the elastic clamp 70 may be adjusted according to the degree of tightening of the fastening bolt 80 to the anchor socket 11 in the concrete sleeper block 10 .

Hereinafter, with reference to FIGS. 5 and 6, a replacement construction method of an existing vibration-proof box-type vibration-proof sleeper using a vibration-proof sleeper according to an embodiment of the disclosure will be described as follows:

As shown in FIG. 4, in the method for replacing the existing vibration-proof box type vibration-proof sleeper using the vibration-proof sleeper according to an embodiment of the disclosure, the rail fasteners of a certain length section are dismantled and the rails 7 on both sides are lifted. After the first step (S1) of mounting on a rail-mounting stand (not shown), and removing the existing vibration-proof box-type vibration-proof sleepers 100 at odd positions among the existing vibration-proof box-type vibration-proof sleepers 100 and 100', the existing vibration-proof A second step (S2) of cleaning the groove 5 in which the box-type vibration-proof sleeper 100 was installed, and the second step of arranging the vibration-proof sleeper 1 according to an embodiment of the disclosed subject matter prepared in advance in the groove 5 In step 3 (S3), the rails 7 on both sides are lowered onto the existing vibration-proof box-type vibration-proof sleepers 20' at even-numbered positions and fastened again, and on one side of the vibration-proof sleepers 1 according to an embodiment of the disclosure. A fourth step (S4) of installing a rail support stand for supporting the rail 7 at a certain height, and lifting the anti-vibration sleeper 1 according to an embodiment of the disclosure to form a space in the groove 5 After this, a fifth step (S5) of fastening and fixing the anti-vibration sleeper (1) to the rail (7) according to an embodiment of the disclosure, and a sixth step (S5) of filling and hardening the mortar grout (9) in the groove (5) ( S6), the seventh step (S7) of removing the rail support stand (not shown) after hardening of the mortar grout 9, and the first steps (S1) to the seventh step (S7) at an even-numbered position and an eighth step (S8) of repeating for the box-type anti-vibration sleeper 100'.

The mortar grout 9 used in the sixth step (S6) is, for example, preferably self-compacting concrete (SCC) capable of rapid hardening within 24 hours. Self-filling concrete (SCC) is a grouting material having self-filling properties that is uniformly filled in the internal space only with its own weight without any additional compaction work when pouring mortar grout, and can be formed with ordinary self-filled concrete. While the mortar grout 9 is hardened, the rail 7 is supported by a rail support stand.

Odd-numbered positions among the existing vibration-proof box-type anti-vibration sleepers 100 and 100' so that the replacement construction of the dust-proof box-type anti-vibration sleeper using the anti-vibration sleeper according to an embodiment of the disclosure can be performed without impeding the operation of railway vehicles. The first step (S1) to the seventh step (S7) for the replacement construction of the existing dustproof box-type anti-vibration sleeper 100 of '), it is preferable that the eighth step (S8) for the replacement of the existing dust-proof box-type anti-vibration sleeper 100' at even-numbered positions is performed the next night,

In the case of the anti-vibration sleeper 1 according to an embodiment of the disclosure replaced through the replacement construction method as described above, the lower part including the lattice reinforcing bar structure 20 is fixedly coupled to the concrete ballast 3, so that the railway The load or impact according to the passage of the vehicle can be supported and absorbed by the lattice reinforcing bar structure 20, and the vibration-proof part including the elastic pad 30 in addition to the normal rail pad 50 is applied to the upper part where the rail fastening device is installed. Accordingly, even if the conventionally installed anti-vibration box type anti-vibration sleepers 100 and 100' are replaced, a highly elastic track can be formed through the upper anti-vibration part.

In addition, the damage and degree of damage to the anti-vibration parts such as the rail pad 50 or the elastic pad 30 can be easily grasped only by visual observation after replacing the conventionally installed dust-proof box-type anti-vibration sleepers 100 and 100 ′. In addition, the maintenance of the anti-vibration unit can be performed quickly and easily at a minimum cost without the need to separate the concrete sleeper block 10 from the groove 5 of the concrete ballast 3 .

Although preferred embodiments of the present invention have been described with reference to the accompanying drawings, the embodiments described in the present specification and the configurations shown in the drawings are only the most preferred embodiments of the present invention and represent all of the technical spirit of the present invention. Therefore, it should be understood that there may be various equivalents and modifications that can be substituted for them at the time of filing the present application. Therefore, the embodiments described above are to be understood as illustrative and not restrictive in all respects, and the scope of the present invention is indicated by the following claims rather than the detailed description, and the meaning and scope of the claims and their All changes or modifications derived from the concept of equivalents should be construed as being included in the scope of the present invention.

1: Anti-vibration sleeper
3: Concrete
5: Home
7: rail
9: Mortar grout
10: concrete sleeper block
11: anchor socket
13: protrusion fastening part
15: seating surface
20: lattice reinforcing bar structure
21: lower transverse reinforcing bar
23: upper transverse reinforcing bar
25: lattice muscle
27: buffer support net
27a: vertical support bar
29: buffer spring
30: elastic pad
40: base plate
41: seating groove
43: step part
43a: receiving home
50: rail pad
60: side support guide panel
61: support jaw
70: elastic clamp
80: fastening bolt
100, 100' : Dustproof box type dustproof sleeper

Claims (5)

A vibration-proof sleeper for replacement construction of a vibration-proof box-type vibration-proof sleeper which is constructed to replace a previously installed vibration-proof box-type vibration-proof sleeper in a groove on a concrete road, comprising the steps of:
The lower part is inserted and fixed by mortar grout in the groove of the concrete map from which the vibration-proof box-type vibration-proof sleeper has been removed, the anchor socket is embedded and fixed inside, and the seating surface is formed on the upper surface by the binding protrusions protruding on both sides of the concrete. sleeper block;
A pair is spaced apart from the lower part of the concrete sleeper block and arranged side by side in the horizontal direction, the upper part is embedded and fixed in the concrete sleeper block, and the lower part protrudes from the concrete sleeper block and the dust-proof box-shaped anti-vibration sleeper is removed from the groove on the concrete map. a lattice reinforcing bar structure inserted and fixed by mortar grout together with the lower side of the concrete sleeper block within;
an elastic pad laminated on the seating surface of the concrete sleeper block;
a base plate laminated on the elastic pad and having a seating groove formed in the center of the upper surface;
a rail pad laminated on the seating groove of the base plate and on which the rail is supported;
side support guide panels installed on both sides of the base plate;
an elastic clamp installed on both sides of the base plate and the side support guide panel to press and support both lower sides of the rail; and
and a fastening bolt passing through both sides of the base plate and fastened to the anchor socket to press and support the elastic clamp. The method according to claim 1,
The lattice reinforcing bar structure includes a pair of lower transverse reinforcing bars, an upper transverse reinforcing bar disposed on top of the lower transverse reinforcing bars, and lattice reinforcing bars that integrally connect the lower transverse reinforcing bars and the upper transverse reinforcing bars Anti-vibration sleeper for replacement construction of box-type vibration-proof sleepers. 3. The method according to claim 2,
The lattice reinforcing bar structure further comprises a buffer support network connected to the upper part of the upper transverse reinforcing bars by vertical support reinforcing bars. 4. The method according to any one of claims 1 to 3,
The anti-vibration sleeper for replacement construction of the dust-proof box type anti-vibration sleeper,
The first step of dismantling the rail fasteners of a certain length section, lifting the rails on both sides and mounting them on the rail mounting stand, and removing the vibration-proof box-type vibration-proof sleepers at odd positions among the existing vibration-proof box-type vibration-proof sleepers The second step of cleaning the groove in which the box-type vibration-proof sleeper was installed, the third step of arranging a new, pre-manufactured vibration-proof sleeper in the groove, and lowering the rails on both sides onto the even-numbered box-type vibration-proofing sleeper and fastening them again The fourth step of fixing and installing a rail support stand that supports the rail at a certain height on one side of the new vibration-proof sleeper, lifting the new vibration-proof sleeper to form a space in the groove, and then fastening and fixing the new vibration-proof sleeper to the rail A fifth step, a sixth step of filling and hardening the mortar grout in the groove, a seventh step of removing the rail support stand after curing of the mortar grout, and the first to seventh steps in an even-numbered existing dustproof box An anti-vibration sleeper for replacement construction of a dust-proof box-type anti-vibration sleeper, characterized in that it is replaced through the eighth step repeated for the type anti-vibration sleeper. 5. The method according to claim 4,
The first to seventh steps are performed at night, and the eighth step is performed at night the next day.

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