JP2000104201A - Rail brace body elastic bonded type track and constructing method therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a track and a constructing method therefor of simple construction, inexpensive construction capable of reducing railway vibration and noise. SOLUTION: This track is provided with a sleeper 15 for supporting a rail 14 through a rail fastening device 13, for elastic layer member 16a composed of an elastic material, formed in a layer and bonded to the under surface of the sleeper 15, and an intervene member 16b. The elastic layer member 16a is bonded to a roadbed concrete 11 on the lower part thereof and provided with an oozing type variable pad 16e capable of supporting at least a part of a rail orthogonal load working on the sleeper 15 orthogonally to the rail 14.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rail support elastic bonding type track formed by bonding a rail support to roadbed concrete with an elastic layer member, and a method of constructing the rail support elastic bonding type track. It is.

[0002]

2. Description of the Related Art Conventionally, an "elastic sleeper directly connected track" has been known as one of "vibration proof tracks" capable of reducing noise and vibration of a railway line. A configuration and a construction method of the elastic sleeper directly connected track will be described with reference to FIGS. 8 and 9. 8A and 8B are diagrams showing a configuration of a conventional elastic sleeper directly-connected track. FIG. 8A is a top view, FIG. 8B is a side view, and FIG. 8C is FIG. FIG.
Each is shown. FIG. 9 is a diagram showing a configuration of an example of a conventional elastic sleeper. FIG. 9A is a front view, and FIG.
9B shows a bottom view, and FIG. 9C shows a side view.

[0003] As shown in FIG. 8, an elastic sleeper directly connected track 70 is provided in an elastic sleeper 75 in a box-shaped roadbed concrete (referred to as “crib”) 71 which has been previously placed on a foundation roadbed or the like. Are arranged side by side. Elastic sleepers 7
As shown in FIG. 9, 5 is a portion directly below the rail on the lower surface of the sleeper body 75a, a portion connected to a rail directly below the lower portion of the side surface of the sleeper body 75a, and an end face of the sleeper body 75a. The elastic material 75b is adhered to a part thereof, and the rest of the lower surface of the sleeper body 75a, the remaining portion of the lower portion of the side surface of the sleeper body 75a, and the rest of the end surface of the sleeper body 75a. And a hollow material 75c is bonded to the portion.

As the elastic member 75b, a synthetic resin material such as urethane low foam elastomer is used.
As c, a foamable synthetic resin material such as a closed-cell polyethylene foam is used.

After the elastic sleepers 75 are provided, the rails 74
Is fastened to the elastic sleeper 75 by a rail fastening device 73 having a known configuration. Then, box-shaped subgrade concrete 7
The concrete 72 is filled between the lower surface of the elastic sleeper 75 at the end inside 1 and the roadbed concrete 71. After hardening of these fillers, ballast crushed stones are sprayed around the elastic sleepers 75 to cover them.

[0006] As a result of an actual vehicle running test, it was found that the elastic sleeper directly-connected track 70 can reduce vibration and noise due to running of a railway vehicle.

[0007]

However, in the above-described conventional elastic sleeper directly connected track 70, a box-shaped roadbed concrete 71 having a flat bottom portion 71a and an upright wall-shaped side wall portion 71b is cast. After that, after the elastic sleeper 75 is installed, it is necessary to cast the filling concrete 72 again, and since the concrete is cast twice, the construction becomes complicated, and a sound absorbing material such as a ballast is arranged on the raceway surface. There is a problem that the location to be obtained is almost limited to a narrow space between the upper surface of the filled concrete and the lower surface of the rail. In addition, there is also a problem that construction cost is increased due to complicated construction. Furthermore, skilled construction workers are required to perform complicated construction, but in recent years, such skilled construction workers have decreased, and there has been a problem that it is difficult to secure them.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide a simple construction, a low construction cost, and a reduction in railway vibration and noise. An object of the present invention is to provide a track and a method of constructing the track.

[0009]

According to the present invention, there is provided a rail support elastic bonding type track according to the present invention, comprising: a rail support for supporting a rail via rail fastening means;
An elastic layer member formed of an elastic material and formed in a layered shape and attached to the lower surface of the rail support; and bonding the elastic layer member to a roadbed concrete below the elastic layer member, and being perpendicular to the longitudinal direction of the rail and horizontal. And a bonding member capable of supporting at least a part of a load in a direction perpendicular to the rail, which is a load acting on the rail support member acting in a direction perpendicular to the rail.

[0010] In the above-mentioned rail support elastic bonding type track, preferably, the elastic layer member is a vertical projection area of the lower surface of the rail among the lower surface of the rail support which is the lower surface of the rail support. It is attached to the lower surface of the rail support corresponding to the rail support region which is a vertical projection region including at least the rail lower surface region.

[0011] In the above-described rail support elastic bonding type track, preferably, when the adhesive member supports a part of the rail perpendicular load to the rail support, the rail perpendicular load to the rail support is provided. And auxiliary supporting means for bearing the remaining load in the direction perpendicular to the rail, which is the remaining portion excluding the load borne by the adhesive member.

[0012] In the above-mentioned rail support elastic bonding type track, preferably, there is provided an intervening member which is disposed between the elastic layer member and the bonding member and which has good adhesiveness to both.

[0013] In the above-mentioned rail support elastic bonding type track, preferably, both ends of the elastic layer member in the direction perpendicular to the rail are restrained so as to reduce the amount of shear deformation of the elastic layer member in the direction perpendicular to the rail. Elastic layer member restraining means.

In the above-mentioned rail support elastic adhesive type track, preferably, there is provided a noise absorbing means arranged around the rail support and absorbing and reducing noise caused by train running.

In the above-mentioned rail support elastic bonding type track, preferably, the bonding member is formed of a deformable material and is formed in a bag shape having a large number of minute holes, and is provided between the elastic layer member and the roadbed concrete. The inside of the bag body is filled with a filler that hardens due to chemical aging from the fluid state and becomes a solid state, and a part of the filler is hardened while exuding from the micropores of the bag body. It is constituted by.

Further, the method for constructing a rail support elastic bonding type track according to the present invention provides an elastic rail in which a layered elastic layer member made of an elastic material is attached to a lower surface of the rail support to produce an elastic rail support. A support body preparing step, and then, an elastic rail support holding step of holding the elastic rail support body at a predetermined height position on the roadbed concrete by height position holding means, and then the elastic layer member by an adhesive member. It is characterized by having an elastic rail support bonding step of bonding to the roadbed concrete.

In the above-described method for applying the rail support elastic bonding type track, preferably, in the elastic rail support bonding step, the bonding member is formed in a bag shape made of a deformable material and having a large number of minute holes. The filled bag is disposed between the roadbed concrete and the elastic layer member, and the filler that hardens from a fluid state due to chemical aging and becomes a solid state is placed inside the bag in the fluid state. When the bag is filled, the bag is pressed against both the roadbed concrete and the elastic rail support, and a part of the filler is hardened while oozing out from the minute holes of the bag, thereby performing the bonding.

[0018]

Embodiments of the present invention will be described below with reference to the drawings. In the following embodiments and drawings, the same reference numerals denote members having the same configuration and operation.

(1) First Embodiment FIG. 1 is a view showing a configuration of a railroad elastic bonding type track which is a first embodiment of a rail support elastic bonding type track according to the present invention, and FIG. 1) shows a cross-sectional view, FIG. 1B shows an enlarged cross-sectional view of the elastic bonding portion, and FIG. 1C shows a side view.

As shown in FIG. 1 (A), this sleeper elastic bonding type track 10 is formed in a box shape formed on a track structure (not shown) such as an earth structure, a viaduct, and a tunnel slab. Roadbed concrete 11, sleepers 15 disposed in the roadbed concrete 11, elastic bonding portions 16 disposed between the roadbed concrete 11 and the sleepers 15, and the hollow material 1
7, a ballast portion 12 disposed around the sleeper 15 in the roadbed concrete 11, and the rail fastening device 1.
3 and a rail 14.

The roadbed concrete 11 is a member made of, for example, reinforced concrete (RC). The roadbed concrete 11 has a flat bottom portion 11a and a side wall portion 11b erected on the side of the bottom portion 11a. It is formed in a box shape whose upper part is open.

The sleeper 15 is a block-shaped member made of, for example, prestressed concrete (PC). On the upper surface of the sleeper 15, a concave rail support surface is provided. An embedding plug (not shown) made of steel, hard plastic, or the like is embedded in the rail support surface. These plugs have internal threads (not shown) on the inner wall.
Are formed, and fastening bolts (not shown), etc., which are components of the rail fastening device 13, are screwed in, and the rail 14 is fixed to the sleeper 15. A hole 15b (described later) for a height adjustment bolt is provided near the end of the sleeper 15. here,
The sleeper 15 corresponds to a rail support. Further, the rail fastening device corresponds to rail fastening means.

As shown in FIG. 1B, the elastic bonding portion 16 is disposed at a position below the rail on the lower surface of the sleeper 15, and includes an elastic layer member 16a, an interposed member 16b, and an exuding type. It has a variable pad 16e.

The elastic layer member 16a is made of an elastic material,
It is formed in a layer shape or a plate shape, and is adhered to the lower surface of the sleeper 15. As the elastic material, a synthetic resin material such as a urethane low foam elastomer is used.

The interposition member 16b is a member having a flat plate portion 16c and restraining portions 16d erected from both ends of the flat plate portion 16c and having a substantially U-shaped cross section. The elastic layer member 16a is housed in a recess formed by the “U” -shaped interposed member 16b, and the lower surface of the elastic layer member 16a and the
The bottom surface of 6b is adhered. As the material of the interposition member 16b, a material that easily adheres to the elastic material of the elastic layer member such as steel, hard plastic, or FRP (fiber reinforced plastic) and easily adheres to the exudable variable pad 16e is used. .

The exudable variable pad 16e is connected to a bag 16f.
And an injection pipe 16g, and are disposed between the interposed member 16b and the bottom portion 11a of the roadbed concrete 11. The bag body 16f is formed of a thin film-like material having appropriate air permeability reinforced with a synthetic resin material such as polyester with a long glass fiber nonwoven fabric or the like, is formed in a flat bag shape, and can be deformed according to external force, Many micropores are formed. The injection pipe 16g is inserted into the bag 16f, and has a valve or the like that can be opened and closed inside. With this injection tube 16g,
A filler (not shown) in a fluid state (plastic state) can be injected into the bag body 16f.

The filler is a fluid base material composed of a synthetic resin such as an unsaturated polyester resin, a vinyl ester rubber-modified resin, an asphalt-modified urethane resin, a urethane-modified vinyl ester resin, and a synthetic resin such as methyl ethyl ketone peroxide. It is a mixture of a fluid-type curing agent containing a resin as a main component, and is cured for a predetermined time, for example, about several tens of minutes. Regarding the strength of the cured filler, for example, when the base material is a urethane-modified vinyl ester resin, the compressive strength is 1500 kg / cm ² or more, and the filler has sufficient strength.

When the injection is started, the bag 16f expands, and the lower surface of the horizontal portion of the bag 16f is
The upper surface of the bag body 16f is pressed against and adheres to the lower surface of the interposition member 16b, while being pressed against and closely contacting the upper surface 11c of the bottom portion 11a. When the filler material spreads to every corner in the bag body 16f, the filler material oozes out from each minute hole of the entire bag body 16f made of nonwoven fabric. When such oozing of the filler is confirmed, a valve or the like provided on the injection pipe 16g is closed to stop the injection of the filler, and the apparatus is allowed to stand still.
Thereafter, the filler hardens from a fluid state to a solid state due to chemical aging. As a result, the gap between the bottom surface upper surface 11c of the roadbed concrete 11 and the lower surface of the interposition member 16b is pressed against and adhered by the hardened filler. By such an operation, the sleeper 15 is adhered to the roadbed concrete 11 via the elastic layer member 16a, the interposed member 16b, and the exudable type variable pad 16e.

The hollow material 17 is made of a foamable synthetic resin material such as a closed-cell polyethylene foam, is formed in a plate shape, and is adhered to the lower surface of the sleeper 15 other than the elastic bonding portion 16.

The ballast portion 12 is made of crushed ballast or the like, and is filled around the sleeper 15 inside the concave portion formed in the roadbed concrete 11.

With the above-described configuration, the sleeper elastic bonding type track 10 can absorb the train vibration transmitted from the rail 14 by the elastic layer member 16a, and can exhibit the anti-vibration performance.

The longitudinal direction (rail direction) of the rail 14
In a direction perpendicular to the horizontal direction (hereinafter, referred to as “rail perpendicular direction”), a load acting on the sleeper 15 due to train running or the like (hereinafter, “rail perpendicular direction load”).
That. ) Is at least partially formed by the exudable variable pad 16.
It is supported by the adhesive force of e. Therefore, the seepage type variable pad 16e corresponds to an adhesive member.

Further, the remaining portion of the above-mentioned load perpendicular to the rail (hereinafter referred to as "remaining load perpendicular to the rail").
Is supported by the ballast portion 12 around the sleeper 15 and the side wall portion 11b of the roadbed concrete 11. Here, the ballast portion 12 around the sleeper 15 or the side wall portion 11b of the roadbed concrete 11 corresponds to auxiliary support means.

Further, the train noise is absorbed by the ballast portion 12 which is filled around the sleeper 15, so that sound absorbing performance can be exhibited. Therefore, the ballast section 12 corresponds to a noise absorbing unit.

Next, the operation of the elastic layer member and the interposed member in the elastic bonding portion 16 will be described with reference to FIG.

When a horizontal force (shearing force) F as shown in FIG. 2B acts on the elastic layer member 16a initially in the state of FIG. 2A, the elastic layer member 16a is moved to the state shown in FIG. Shear deformation as shown in ()). However, when the shear displacement d1 is large, the lateral displacement of the sleeper 15 becomes large.
Therefore, as shown in FIG. 2C, the elastic layer member 16a
By providing the restraining portion 16d on the side of the above, the shear deformation is restrained, and the amount of shear displacement is reduced like d2. Here, the restraining portion 16d of the interposition member 16b corresponds to an elastic layer member restraining means.

The sleeper elastic bonding type track 10 described above is
It is constructed by the following method.

The elastic rail member 16a is bonded to the lower surface of the sleeper 15 to produce an elastic rail support (hereinafter, referred to as an elastic rail support).
This is referred to as "elastic rail support body manufacturing step". ).

Next, the rail 14 is fastened to the elastic rail support via the rail fastening device 13 to form an “elastic rail gauge” including the elastic rail support and the rail 14.

Next, a height adjustment bolt (not shown) is screwed into a height adjustment bolt hole 15 b (see FIG. 1A) near the end of the sleeper 15, and the elastic rail support is placed on the roadbed concrete 11. (Hereinafter, referred to as “elastic rail support holding step”). In this case, the height adjustment bolt (not shown) and the hole 15b for height adjustment bolt constitute height position holding means.

Next, the exudable variable pad 16 e is
It is inserted between the held elastic rail support and the roadbed concrete 11.

Next, a filler is injected into the leaching type variable pad 16e, and the elastic rail support is bonded to the roadbed concrete 11 (hereinafter, referred to as “elastic rail support bonding step”). As a result, the elastic layer member 16a comes into close contact with the upper surface of the roadbed concrete 11 via the interposed member 16b and the seepage type variable pad 16e.

According to the sleeper elastic bonding type track 10 described above, there are the following advantages.

1) There is no need to refill concrete around the sleepers in the roadbed concrete as in the conventional elastic sleeper direct connection track, and the construction is simple.

2) The space where the sound absorbing material such as ballast can be arranged on the raceway surface can use all the spaces between the sleepers.

3) Compared to the conventional elastic sleeper directly connected orbit,
Since the construction is simple and easy, the construction cost is greatly reduced, and the construction workers need not be skilled workers but ordinary workers.

(2) Second Embodiment The present invention can be realized by other configurations. next,
Another embodiment of the present invention will be described. FIG. 3 is an enlarged cross-sectional view showing the configuration of the elastic bonding portion in the sleeper elastic bonding type track according to the second embodiment of the present invention. Second
The sleeper elastic bonding type track 20 of the embodiment differs from the sleeper elastic bonding type track 10 of the first embodiment in that it has a different elastic bonding portion, and the configuration and operation of other components are the same as those of the first embodiment. Since this is the same as in the case of the embodiment, the description is omitted. Note that, in FIG. 3, portions denoted by the same reference numerals as those in FIG. 1B indicate the same components as those in FIG. 1B.

As shown in FIG. 3, the elastic bonding portion 26 of the sleeper elastic bonding type track 20 is disposed at a position below the rail on the lower surface of the sleeper 15, and has an elastic layer member 16a and an intermediate member 26b. , An exuding type variable pad 16e, and a restraining member 26d. The difference between the elastic bonding portion 26 of the second embodiment and the elastic bonding portion 16 of the first embodiment is that the elastic bonding portion 26 has a different interposing member 26b and a restraining member 26d. The description is omitted because it is the same as that of the embodiment.

The interposed member 26b is a member formed in a flat plate shape. The material of the interposition member 26b is the same as that of the interposition member 16b of the first embodiment.

The restraining member 26d is a member adhered to the lower surface of the sleeper 15 below the rail, has a substantially "L" -shaped cross section, and is disposed on both sides of the elastic layer member 16a. This restraining member 26d corresponds to the restraining portion 16d of the interposition member 16b in the first embodiment, and the elastic layer member 16d.
It is provided in order to restrain the lateral shear deformation of “a” and reduce the amount of lateral displacement of the sleeper 15. Here, the restraining member 26d corresponds to an elastic layer member restraining means.

According to the second embodiment, the first embodiment
The same operation as the embodiment can be achieved, and the above 1) to
The effect and advantage of 3) can be exhibited.

(3) Third Embodiment Next, a third embodiment of the present invention will be described. FIG.
FIG. 9 is an enlarged cross-sectional view showing a configuration of an elastic bonding portion in a sleeper elastic bonding type track according to a third embodiment of the present invention. The sleeper elastic bonding type track 30 of the third embodiment is different from the sleeper elastic bonding type tracks 10 and 20 of the above-described embodiments in that the track elastic bonding track 30 has a different elastic bonding portion. The operation is the same as in each of the above embodiments, and a description thereof will be omitted. In FIG. 4,
1 (B) and 3 are the same as those in FIG.
3B shows the same components as those in FIG.

As shown in FIG. 4, the elastic bonding portion 36 of the sleeper elastic bonding type track 30 is disposed at a position below the rail on the lower surface of the sleeper 15, and includes an elastic layer member 16a and an intermediate member 26b. , An exudable variable pad 16e, and a restraining member 36d. The elastic bonding portion 36 of the third embodiment is different from the elastic bonding portion 26 of the second embodiment in that the elastic bonding portion 36 has a different restraining member 36d, and the configuration and operation of the other components are the same as those of the first and second embodiments. Since it is the same as the case, the description is omitted.

The restraining member 36d is made of the roadbed concrete 11
Is a member having a substantially "L" -shaped cross section, and is disposed on both sides of the elastic layer member 16a. The restraining member 26d corresponds to the restraining portion 16d of the interposition member 16b in the first embodiment or the restraining member 26d in the second embodiment, and restrains the elastic deformation of the elastic layer member 16a from laterally. 15 is provided to reduce the amount of displacement in the horizontal direction. Therefore, the restraining member 36d corresponds to an elastic layer member restraining means. The restraining member 36d also has a function of supporting the residual load in the direction perpendicular to the rail, and also serves as an auxiliary support unit.

According to the third embodiment, the same operation as the first and second embodiments can be achieved, and the effects and advantages 1) to 3) can be exhibited.

(4) Fourth Embodiment Next, a fourth embodiment of the present invention will be described. FIG.
FIG. 9 is a cross-sectional view illustrating a configuration of a sleeper elastic adhesive track according to a fourth embodiment of the present invention. The sleeper elastic bonding type track 40 of the fourth embodiment differs from the sleeper elastic bonding type track 10 to 30 of each of the above embodiments in that it has different roadbed concrete, and the configuration and operation of other components. Are the same as in the above embodiments, and a description thereof will be omitted. Note that in FIG. 4, portions denoted by the same reference numerals as those in FIG. 1A indicate the same components as those in FIG. 1A.

As shown in FIG. 5, this sleeper elastic bonding type track 40 is provided with a roadbed concrete 41, a sleeper 15 arranged in the roadbed concrete 41, and a space between the roadbed concrete 41 and the sleeper 15. Elastic bonding part 1
6, a hollow member 17 and a ballast portion 12 disposed around the sleeper 15 in the roadbed concrete 41;
It has a rail fastening device 13 and a rail 14.

The roadbed concrete 41 is a member made of, for example, reinforced concrete (RC) or the like, and has a flat bottom portion 41a, a convex portion 41d protruding from the upper center of the bottom portion 41a, and a bottom portion 41a. It has a side wall 11b standing upright on the side, and is formed in a box shape with the upper part opened as a whole.

The end of the above-mentioned projection 41 d is
The side wall of the step portion 41e comes into contact with the side portion of the exudable variable pad 16e and the side portion of the restraining portion 16d of the interposition member 16b. Therefore, the step portion 4
1e has a function of supporting the residual load in the direction perpendicular to the rail.

According to the fourth embodiment, the same operation as the above embodiments can be achieved.
The effects and advantages of 3) can be exhibited.

(5) Fifth Embodiment Next, a fifth embodiment of the present invention will be described. FIG.
6A and 6B are diagrams showing a configuration of a sleeper elastic bonding type track according to a fifth embodiment of the present invention. FIG. 6A is a cross-sectional view, and FIG. A sectional views are shown. The sleeper elastic bonding type track 50 of the fifth embodiment is the same as the sleeper elastic bonding type track 1 of each of the above embodiments.
The point different from 0 to 40 is that it has different roadbed concrete, and the configuration and operation of the other components are the same as those in the above embodiments, and thus the description thereof is omitted. Note that, in FIG. 6, portions denoted by the same reference numerals as those in FIG. 1A indicate the same components as those in FIG. 1A.

As shown in FIG. 6, the sleeper elastic bonding type track 50 is provided with a roadbed concrete 51, a sleeper 15 disposed in the roadbed concrete 51, and a roadbed concrete 51 and the sleeper 15. Elastic bonding part 1
6, a hollow material 17, a ballast portion 12 disposed around the sleeper 15 in the roadbed concrete 51,
It has a rail fastening device 13 and a rail 14.

The roadbed concrete 51 is a member made of, for example, reinforced concrete (RC), and has a flat bottom portion 51a, and two groove portions 51f recessed below the rail above the bottom portion 51a. Bottom panel 51a
Is formed in a box shape having an open upper part as a whole.

The inner wall of the groove portion 51f is connected to the side portion of the exuding type variable pad 16e and the restraining portion 1 of the interposition member 16b.
6d. For this reason, the inner side wall of the groove 51f has a function of supporting the residual load in the direction perpendicular to the rail.

According to the fifth embodiment, the same operation as the above embodiments can be achieved.
The effects and advantages of 3) can be exhibited.

(6) Sixth Embodiment Next, a sixth embodiment of the present invention will be described. FIG.
FIG. 14 is a cross-sectional view illustrating a configuration of a sleeper elastic bonding type track according to a sixth embodiment of the present invention. The sleeper elastic adhesive track 60 of the sixth embodiment differs from the sleeper elastic adhesive track 10 to 50 of each of the above-described embodiments in that it has different roadbed concrete and a different ballast portion. Since the configuration and operation are the same as those in the above embodiments, description thereof will be omitted. Note that, in FIG. 7, portions denoted by the same reference numerals as those in FIG.
The same components as those in FIG.

As shown in FIG. 7, this sleeper elastic bonding type track 60 is provided with a roadbed concrete 61, a sleeper 15 arranged on the roadbed concrete 61, and a space between the roadbed concrete 61 and the sleeper 15. Elastic bonding part 1
6, a hollow member 17, and a ballast portion 12 'arranged around the sleeper 15 in the roadbed concrete 61.
, A rail fastening device 13 and a rail 14.

The roadbed concrete 61 is a member made of, for example, reinforced concrete (RC), and has a flat upper portion as a whole.

Further, the ballast portion 12 ′ covers the vicinity of the end of the sleeper 15 and has a sloped side, similarly to a normal ballast ballast.

According to the sixth embodiment, the same operation as the above embodiments can be achieved.
The effects and advantages of 3) can be exhibited.

The present invention is not limited to the above embodiments. Each of the above embodiments is merely an example, and has substantially the same configuration as the technical idea described in the claims of the present invention, and those having the same functions and effects are:
Anything is included in the technical scope of the present invention.

For example, in each of the above embodiments, a sleeper has been described as an example of a rail support. However, the present invention is not limited to this, and other configurations of the rail support,
For example, it may be a track slab.

In each of the above embodiments, the sleeper and the track slab made of PC have been described as examples of the rail support. However, the present invention is not limited to this. Body, for example, reinforced concrete (R
C), steel, wood, FRP (fiber reinforced plastic)
Or a rail support constituted by an appropriate combination of these. In short, the rail support of the present invention is disposed between a track bed or a roadbed and two rails on a railway line, and is provided on the upper surface and has a cross-sectional shape in the longitudinal direction of the railway line on the same inclined line. It has two rail support surfaces forming two inclined line segments, and a horizontal lower surface. The two rails are supported by the rail support surface to disperse the overload, transmit the load to a roadbed or a roadbed, and simultaneously carry the two rails. Any type can be used as long as the gauge distance is kept constant.

Although not shown, the rail fastening means also includes a track pad disposed immediately below the rail bottom.

Further, in each of the above embodiments, the example in which the elastic layer member is disposed at the position below the rail has been described. However, the present invention is not limited to this. It may be adhered to the entire lower surface of the support. In short, the elastic layer member of the present invention may be any material as long as it is made of an elastic material and is formed in a layer and is adhered to the lower surface of the rail support. What is bonded to the lower surface of the rail support corresponding to the rail support region which is the vertical projection region including at least the rail lower surface region which is the vertical projection region of the lower surface of the rail. It may be.

Further, in each of the above embodiments, the example in which the elastic layer member is adhered to the lower surface of the rail support has been described. However, the present invention is not limited to this. Is attached to the lower surface of the rail support by mechanical fasteners such as bolts, clips, nails, etc.,
Or, a protrusion is provided on one of the elastic layer member and the rail support, and a recess is formed on the other of the elastic layer member and the rail support, and the elastic layer member is attached to the lower surface of the rail support by fitting the two, or Alternatively, the elastic layer member may be attached to the lower surface of the rail support by a coupling tool using the attractive force of a magnet.

In each of the above embodiments, the exuding type variable pad has been described as an example of the adhesive member.
The present invention is not limited to this, and may be an adhesive member having another configuration, for example, a thin film formed of an elastic material and formed in a layer shape and bonded to the lower surface of the rail support. Further, the adhesive member may be arranged not only at the lower position of the rail but also on the entire lower surface of the rail support. Further, the adhesive member may support all rail perpendicular loads.

The auxiliary support means may have a configuration other than that described in each of the above embodiments. The point is that the auxiliary member supports a part of the load perpendicular to the rail to the rail support in the direction perpendicular to the rail. In addition, any load may be used as long as it bears the remaining load in the direction perpendicular to the rail, which is the remaining portion of the load perpendicular to the rail to the rail support, excluding the load that the adhesive member bears.

The interposed member may have a configuration other than that described in each of the above-described embodiments. The point is that the interposed member is disposed between the elastic layer member and the adhesive member and adheres to both members. Any material can be used as long as the material has good properties.

Further, the elastic layer member restraining means may have a configuration other than that described in each of the above embodiments. The point is to reduce the amount of shear deformation of the elastic layer member in the direction perpendicular to the rail. Any material may be used as long as it restricts both ends of the elastic layer member in the direction perpendicular to the rail.

The noise absorbing means may have a configuration other than that described in each of the above embodiments. The point is that the noise absorbing means is arranged around the rail support and absorbs the noise caused by the running of the train. Any method can be used as long as it is reduced by the following. Therefore, a configuration other than the ballast portion made of the ballast crushed stone, for example, a configuration in which a large number of sound absorbing members formed of concrete, synthetic resin material, or the like in a spherical or block shape may be arranged.

In each of the above-described embodiments, the elastic rail support member is formed by attaching an elastic layer member made of an elastic material to the lower surface of the rail support member to form an elastic rail support member. Construct the rail, after the end of the elastic rail support holding step of holding the elastic rail support at a predetermined height position on the roadbed concrete by height position holding means, the exuding type variable pad which is an adhesive member,
Although an example is described in which the elastic rail support is attached between the elastic rail support and the roadbed concrete and then the elastic rail support bonding step of bonding the elastic layer member to the roadbed concrete with the adhesive member is performed, the present invention is not limited to this. Is not limited, the construction method of other configurations, for example, after the elastic rail support member manufacturing process, the exudable variable pad which is an adhesive member is placed on the roadbed concrete in advance, and then, on the exuded variable pad, Perform the elastic rail support holding process, then
A construction method in which the elastic rail support bonding step is performed may be used. Alternatively, after the step of preparing the elastic rail support,
An exuding type variable pad which is an adhesive member is attached to a lower portion of the elastic layer member, and then an elastic rail support holding step is performed in a state where the exuding type variable pad is attached to a lower portion of the elastic layer member. A construction method in which the bonding step is performed may be used. Further, the fastening of the rail to the rail support may be performed after the elastic rail support bonding step.

In each of the above embodiments, the rail support (for example, the sleeper 1) is used as the height position holding means.
5) Using a bolt hole (for example, 15b) provided in (5) and a height adjusting bolt (not shown) screwed into the hole, the height position of the rail support relative to the roadbed concrete is adjusted by screwing the height adjusting bolt. Although an example of adjusting and holding at a predetermined height position has been described, the present invention is not limited to this, and other configurations such as a mechanical jack, a hydraulic jack, a pneumatic jack, etc. May be adjusted so as to be maintained at a predetermined height position. Also, for the object to be held, instead of the rail support (for example, the sleeper 15),
The rail portion of the elastic rail may be directly held.

[0084]

As described above, according to the present invention,
A rail support for supporting the rail via the rail fastening means, an elastic layer member formed of an elastic material and formed in a layer shape and adhered to the lower surface of the rail support, and an elastic layer member adhered to the roadbed concrete below the elastic layer member; In addition, the rail support elastic bonding type orbit is configured to include an adhesive member capable of supporting at least a part of the rail perpendicular load acting on the rail support acting in the rail perpendicular direction. 1) Conventional elastic pillows There is no need to refill concrete around the sleepers in the roadbed concrete like a directly connected track, and the construction is simple. 2) The places where sound absorbing materials such as ballast can be placed on the track surface are:
The space between the sleepers can be fully used. 3) The construction cost is greatly reduced because the construction is simpler and easier than the conventional elastic sleeper direct connection track. Also has the advantage that ordinary workers may be used instead of skilled workers.

[Brief description of the drawings]

FIG. 1 is a view showing a configuration of a railroad elastic bonding type track which is a first embodiment of a rail support elastic bonding type track according to the present invention. FIG. 1 (A) is a cross-sectional view, and FIG. FIG. 1B shows an enlarged cross-sectional view of the elastic bonding portion, and FIG. 1C shows a side view.

FIG. 2 is a view for explaining the function of an elastic layer member and an interposed member in an elastic bonding portion shown in FIG.

FIG. 3 is an enlarged cross-sectional view showing a configuration of an elastic bonding portion in a sleeper elastic bonding type track according to a second embodiment of the present invention.

FIG. 4 is an enlarged cross-sectional view showing a configuration of an elastic bonding portion in a sleeper elastic bonding type track according to a third embodiment of the present invention.

FIG. 5 is a cross-sectional view showing a configuration of a sleeper elastic bonding type track according to a fourth embodiment of the present invention.

6A and 6B are diagrams showing a configuration of a sleeper elastic bonding type track according to a fifth embodiment of the present invention, wherein FIG. 6A is a cross-sectional view, and FIG. 6B is a view in FIG. A-A sectional view,
Each is shown.

FIG. 7 is a cross-sectional view showing a configuration of a sleeper elastic bonding type track according to a sixth embodiment of the present invention.

8A and 8B are diagrams showing a configuration of a conventional elastic sleeper directly connected track, wherein FIG. 8A is a top view, FIG. 8B is a side view,
FIG. 8C is a cross-sectional view taken along the line AA in FIG. 8A.

9A and 9B are diagrams showing a configuration of an example of a conventional elastic sleeper. FIG. 9A shows a front view, FIG. 9B shows a bottom view, and FIG. 9C shows a side view. ing.

[Explanation of symbols]

Reference Signs List 10 sleeper elastic adhesive track 11 roadbed concrete 11a bottom 11b side wall (auxiliary support means) 11c bottom upper surface 12, 12 'ballast (auxiliary support means, noise absorbing means) 13 rail fastening device 14 rail 15 sleeper ( Rail support) 15a sleeper lower surface 15b hole for height adjustment bolt (height position holding means) 16 elastic bonding portion 16a elastic layer member 16b interposition member 16c flat plate portion 16d restraining portion (elastic layer member restraining means) 16e leaching type Variable pad (adhesive member) 16f Bag 16g Injection tube 17 Hollow member 20 Sleeper elastic bonding type track 26 Elastic bonding part 26b Interposed member 26d Restraining member (elastic layer member restraining means) 30 Sleeper elastic bonding type track 36 Elasticity Bonding portion 36b Interposed member 36d Restraining member (auxiliary support means, elastic layer member restraining means) 4 Railroad elastic bonded track 41 Roadbed concrete 41a Bottom part 41d Convex part 41e Step (auxiliary support means) 50 Railroad elastic bonded track 51 Roadbed concrete 51a Bottom part 51f Groove (auxiliary support means) 60 Railroad elastic bonded track 61 roadbed concrete 70 sleeper elastic bonding type track 71 roadbed concrete 71a bottom part 71b side wall 72 filling concrete 73 rail fastening device 74 rail 75 elastic sleeper 75a sleeper body 75b elastic material 75c hollow material d1, d2 shear displacement F shear force

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Sadasumi Ide 2- 14-2 Nagatacho, Chiyoda-ku, Tokyo Japan Railway Construction Public Corporation (72) Inventor Tetsuhisa Kobayashi 2- 14-2 Nagatacho, Chiyoda-ku, Tokyo Inside the Japan Railway Construction Public Corporation (72) Inventor Katsutoshi Ando 2-8-8 Hikaricho, Kokubunji, Tokyo Metropolitan Institute of Technology (72) Inventor Toshio Mizota 2-8-8 Hikarimachi, Kokubunji, Tokyo 38 Foundation Inside the Railway Technical Research Institute (72) Takahiro Horiike 2-8-8 Hikarimachi, Kokubunji-shi, Tokyo 38 Inside the Railway Technical Research Institute (72) Shizuya Umeda 5-1-1, Ginza, Chuo-ku, Tokyo F-term (reference) in Kowa Kasei Co., Ltd. 2D056 AA02 AA05 AA09 2D057 BA11 BA28 CA00

Claims (9)

[Claims] 1. A rail support for supporting a rail via rail fastening means, an elastic layer member formed of an elastic material and formed in a layered shape and attached to a lower surface of the rail support, It can adhere to the lower roadbed concrete and can support at least a part of the rail perpendicular load, which is the load on the rail support, which acts on the rail support perpendicular to the longitudinal direction of the rail and that is horizontal. A rail support elastic bonding type track characterized by comprising a flexible bonding member. 2. A rail support elastic bonding type track according to claim 1, wherein said elastic layer member is a projection area in a vertical direction of a lower surface of said rail, of a lower surface of said rail support which is a lower surface of said rail support. A rail support elastic bonding type track attached to the rail support lower surface corresponding to a rail support region which is a vertical projection region including at least the rail lower surface region. 3. The rail support elastic bonding type track according to claim 1, wherein the rail is perpendicular to the rail support when the adhesive member supports a part of a load perpendicular to the rail support to the rail support. A rail support elastic bonding type track, comprising auxiliary support means for bearing a residual load in a direction perpendicular to the rail, which is a remaining portion of the directional load other than a load borne by the adhesive member. 4. The rail support elastic bonding type track according to claim 1, further comprising an intervening member disposed between the elastic layer member and the adhesive member and made of a material having good adhesiveness to both. A rail support elastic bonding type track characterized by the above-mentioned. 5. The rail support elastic bonding type track according to claim 1, wherein both ends of the elastic layer member in a direction perpendicular to the rail are reduced so as to reduce an amount of shear deformation of the elastic layer member in a direction perpendicular to the rail. A rail support elastic bonding type track provided with an elastic layer member restraining means for restraining the rail. 6. The rail support elastic bonding type track according to claim 1, further comprising a noise absorbing means disposed around the rail support and configured to absorb and reduce noise caused by running of the train. And the rail support elastic adhesive type track. 7. The rail support elastic adhesive track according to claim 1, wherein the adhesive member is made of a deformable material and formed in a bag shape having a large number of minute holes, and the elastic layer member and the roadbed concrete are formed. The inside of the bag disposed in the middle is filled with a filler that hardens due to chemical aging from the fluid state to a solid state, and a part of the filler is exuded from the micropores of the bag. A rail support elastically bonded track characterized by being cured. 8. An elastic rail support member manufacturing step of manufacturing an elastic rail support member by attaching an elastic layer member formed of an elastic material and formed in a layer shape to a lower surface of the rail support member. An elastic rail support holding step of holding the elastic rail support at a predetermined height position on the roadbed concrete, and an elastic rail support adhering step of adhering the elastic layer member onto the roadbed concrete with an adhesive member. A method of constructing a rail support elastic adhesive type track characterized by the above-mentioned. 9. The method according to claim 8, wherein, in the step of bonding the elastic rail support, the bonding member is formed of a deformable material and has many small holes. Is formed between the roadbed concrete and the elastic layer member, and the filler that hardens from a fluid state to a solid state due to a change over time with chemical changes of the bag body in the fluid state. When the bag is filled inside, the bag is pressed against both the roadbed concrete and the elastic rail support, and the bonding is performed by hardening while a part of the filler oozes out from the micropores of the bag. A method for constructing a rail support elastic adhesive type track characterized by the above-mentioned.