JP3925856B2 - Sleeper and sleeper height adjustment method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a sleeper and a sleeper height adjustment method used for a roadbed track, and more particularly to a sleeper capable of adjusting a rail height and a sleeper height adjustment method.
[0002]
[Prior art]
Conventionally, a roadbed track has a ballast such as gravel on the roadbed to form a roadbed, a wooden or concrete sleeper on the roadbed, and two rails on the sleeper. It is comprised by. The ballast is used to spread the load applied from the train running on the rail over a wide area and to reduce vibrations and transmit it to the roadbed. Maintenance of the roadbed is necessary to maintain the value at a predetermined value, and repair work is performed to add the ballast under the sleeper by a multiple tie tamper or the like to return the submerged rail to its original height.
[0003]
In addition, when a wooden or concrete sleeper is laid on the concrete roadbed, there is a technology to adjust the height of the sleeper by inserting a height adjustment pad between the concrete roadbed and the sleeper. (For example, refer to Patent Document 1).
[0004]
[Patent Document 1]
JP-A-8-246401 (page 3-4, FIG. 5)
[0005]
[Problems to be solved by the invention]
However, in the repair work using the conventional multiple tie tamper, the stable bed and ballast are loosened by the load of the train, so that a large initial settlement occurs again after the repair work. There was a problem that it was necessary to perform frequently.
[0006]
Moreover, in the height adjustment of the sleeper using a height adjustment pad like patent document 1, since the range of the height adjustment of a sleeper is restrict | limited to the thickness of a height adjustment pad, a sleeper is adjusted to arbitrary height. There was a problem that it was not possible.
[0007]
The present invention has been made in view of such problems, and the object of the present invention is to reduce the height of a submerged sleeper without loosening the ballast that was stabilized by the load of the train. A pillow that can perform repair work to be adjusted, can prevent large initial settlement after repair work, can reduce the number of repair work, and can adjust the sleeper to an arbitrary height The present invention provides a method for adjusting the height of the sleeper and sleeper.
[0008]
[Means for Solving the Problems]
In order to solve the above problems, the present invention has the following configuration.
The gist of the invention described in claim 1 is a sleeper laid on a roadbed, and includes an upper block to which a rail is fastened, a lower box for housing the upper block, the upper block and the lower box. and fixing to the tensioning members, and wherein the provided with an injection hole, it has an air vent groove is formed on the side wall of the lower box Rukoto injecting a filler material between the bottom portion of the lower box and the upper block It exists in the sleeper.
The gist of the invention described in claim 2 resides in the sleeper according to claim 1, wherein the injection hole is formed in the upper block.
According to a third aspect of the invention, the sleeper according to claim 1 or 2, wherein the shape of the upper block and the shape of the bottom surface of the lower box as viewed from above are substantially the same. Exist.
The gist of the invention according to claim 4 is that the tension member is screwed into a tension member planting hole formed in the bottom surface portion of the lower box and is bolted vertically to the bottom surface portion of the lower box. A sleeper according to any one of claims 1 to 3 , wherein the sleeper includes a nut that is screwed to the bolt to fix the upper block and the lower box.
According to a fifth aspect of the present invention, the tension member includes a flexible wire planted on a bottom surface of the lower box, and a grip for holding the wire and fixing the upper block and the lower box. The sleeper according to any one of claims 1 to 3 , wherein the sleeper comprises a member.
The gist of the invention described in claim 6 is a method for adjusting the height of a sleeper laid on the road bed, the step of releasing the fixation between the upper block to which the rail is fastened and the lower box for housing the upper block. A step of lifting the upper block to a predetermined height, and a step of injecting a filler into a space between the upper block formed by lifting the upper block to a predetermined height and the bottom surface of the lower box And a step of fixing the upper block and the lower box after the filling material is injected.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[0010]
(First embodiment)
FIG. 1 is a diagram showing a configuration of a sleeper according to a first embodiment of the present invention, (a) is a top view, and (b) is a cross-sectional view taken along line AA shown in (a). It is. 2A and 2B are diagrams showing the configuration of the upper block shown in FIG. 1, wherein FIG. 2A is a top view, and FIG. 2B is a cross-sectional view taken along line B-B shown in FIG. 3 is a diagram showing a configuration of the lower box shown in FIG. 1, (a) is a top view, (b) is a cross-sectional view taken along line CC shown in (a), and (c). These are DD sectional views taken on the line shown in (a).
[0011]
In the first embodiment, referring to FIG. 1, an upper block 1, a tie plate 2 placed on the upper block 1, a lower box 3 for storing the upper block 1, an upper block 1 and a lower box 3 and a rubber member 5 for absorbing an impact provided at the lower part of the upper block 1, and a lower box 3 containing the upper block 1 is laid on the road bed, A rail 6 is laid on the tie plate 2 placed on the base plate 2 and the upper block 1 and the rail 6 are fastened by a fastening member (not shown) to form a roadbed track.
[0012]
The upper block 1 is made of wood or concrete. Referring to FIGS. 1 and 2, between the tension member through hole 11 through which the tension member 4 passes and the bottom block 31 of the upper block 1 and the lower box 3. An injection hole 12 for pouring the filler 8 is formed. In addition, when the upper block 1 is made of concrete, steel material is used inside to increase the strength. Therefore, when the tension member through hole 11 and the injection hole 12 are formed on one straight line avoiding the steel material. Is preferred.
[0013]
The injection hole 12 is preferably formed at the central portion of the upper block 1 so that the filler 8 can reach the entire surface between the upper block 1 and the bottom surface portion 31 of the lower box 3. Further, in the first embodiment, only one injection hole 12 is formed in the central portion of the upper block 1, but a plurality of injection holes 12 may be formed in the upper block 1.
[0014]
1 and 3, the lower box 3 has a substantially rectangular shape when viewed from above, and includes a bottom surface portion 31 and side wall portions 32 erected from the side edges of the bottom surface portion 31, and the upper portion is opened. The box is made of metal or resin, and the upper block 1 can be stored from the opened upper part. The bottom surface portion 31 of the lower box 3 has substantially the same shape as that of the upper block 1 as viewed from above. When the upper block 1 is stored in the lower box 3, the side wall portion 32 and the upper block 1 of the lower box 3 are stored. A state in which there is almost no gap is preferred.
[0015]
A tension member planting hole 33 for vertically planting the tension member 4 is formed in the bottom surface portion 31, and the tension member planting hole 33 is threaded. The tension member 4 and the tension member The tension member 4 can be vertically planted on the bottom surface portion 31 by screwing with the planting hole 33.
[0016]
The side wall 32 is formed with an air vent groove 34 in which the gap between the upper block 1 and the side wall portion 32 is widened in a state where the upper block 1 is stored in the lower box 3. It is formed on the side wall 32 away from the position of the injection hole 12 formed in the upper block 1, that is, far from the position of the injection hole 12.
[0017]
The tension member 4 includes a bolt 41 and a nut lock 42 that is screwed to the bolt 41. The bolt 41 passes through the tension member through hole 11 of the upper block 1, and one end of the bolt 41 is implanted in the tension member. The upper block 1 is fixed to the lower box 3 by tightening the nut lock 42 screwed into the hole 33 and vertically planted and screwed into the other end of the bolt 41.
[0018]
Next, the sleeper height adjustment method of the first embodiment will be described in detail with reference to FIG.
FIG. 4 is a process diagram for explaining the height adjustment process of the sleeper according to the first embodiment of the present invention.
[0019]
First, the sleeper according to the first embodiment is laid on a ballast such as gravel on a roadbed as shown in FIG. When laying, a multiple tie tamper or the like can be used in the same way as a normal sleeper, and it is preferable to lay it at a track weak point such as a joint of a rail 6 or a branching device.
[0020]
Next, when the sleeper sinks due to the load of the train, the tension member 4 composed of the bolt 41 and the nut lock 42 that has fixed the upper block 1 to the lower box 3 is removed from the lower box 3, and the bolt longer than the bolt 41 is removed. 41a is bolted through the tension member through hole 11 of the upper block 1 and one end of the bolt 41 is screwed into the tension member planting hole 33 so as to be vertically planted. The arrow in FIG. As shown, the upper block 1 is lifted so that the height of the rail 6 becomes a predetermined value. The length of the bolt 41a may be appropriately selected depending on the height adjustment width of the sleeper, and the longer the height adjustment width of the sleeper, the longer the bolt 41a is used. The reason why the bolt 41 that has fixed the upper block 1 and the lower box 3 in this way is replaced with the bolt 41a is that when the bolt 41a is used from the beginning by adjusting the sleeper height, This is to prevent the train 6 from projecting to the side of the rail 6 and causing a train travel injury. When the height adjustment width of the sleeper is small, the bolt 41 that has fixed the upper block 1 to the lower box 3 before adjustment. May be used as they are.
[0021]
Next, as shown in FIG. 4 (c), the injection tube 7 is inserted into the injection hole 12 of the upper block 1, and the space between the upper block 1 and the bottom surface portion 31 of the lower box 3 is filled from the injection tube 7. Material 8 is injected. As the filler 8, a material of a type that solidifies after injection in a fluid state at the beginning of injection may be used, or sand, gravel, crushed stone, or the like may be used. By injecting the filler 8 until the filler 8 comes out of the air vent groove 34 formed in the side wall portion 32, the bottom surfaces of the upper block 1 and the lower box 3 as shown in FIG. The space between the portions 31 can be almost completely filled with the filler 8.
[0022]
As a material of the type that solidifies after injection, cement mortar in which water and additives are added to ultrafast cement, asphalt fluidized by heating, cement asphalt mortar containing cement and asphalt, and the like can be used.
[0023]
When sand, gravel, crushed stone or the like is used as the filler 8, the filler 8 is moved between the upper block 1 and the bottom portion 31 of the lower box 3 from the injection hole 12 by air pressure using a stone blower or the like. Inject into the space. Further, when sand, gravel, crushed stone, or the like is used as the filler 8, the filler 8 and the upper block 1 do not adhere to each other, and therefore, the sleeper height adjustment (orbit improvement) is performed a plurality of times. be able to. Also, when a material of a type that solidifies after injection is used as the filler 8, the filler 8 is injected into a bag provided between the upper block 1 and the bottom portion 31 of the lower box 3. In this case, the sleeper height adjustment (orbit improvement) can be performed a plurality of times.
[0024]
Finally, as shown in FIG. 4 (d), the upper block 1 is fixed to the lower box 3 with the filler 8 interposed therebetween by tightening the nut lock 42 screwed into the bolt 41a.
[0025]
As described above, according to the first embodiment, the height of the sleeper is adjusted by the filler 8 injected between the upper block 1 and the bottom surface portion 31 of the lower box 3. It is possible to perform repair work to adjust the height of the submerged sleeper without loosening the stable bed (ballast) that has been tightened and stabilized by the load of the train, and can prevent a large initial settlement after the repair work. There is an effect that the number of repair work can be reduced.
[0026]
Furthermore, according to the first embodiment, the height of the sleeper is adjusted by the filler 8 injected between the upper block 1 and the lower box 3, thereby reducing the amount of filler 8 to be injected. By adjusting, the sleeper can be adjusted to an arbitrary height.
[0027]
Furthermore, according to the first embodiment, the filling state of the filler 8 can be easily grasped by the air vent groove 34 formed in the side wall portion 32, and the filler 8 can be connected to the upper block 1 and the lower box 3. It can inject | pour uniformly between the bottom face parts 31, and there exists an effect that the stable track | orbit can be ensured.
[0028]
Furthermore, according to the first embodiment, by using sand, gravel, crushed stone or the like as the filler 8 to be injected between the upper block 1 and the bottom surface portion 31 of the lower box 3, a plurality of pillows can be obtained. There is an effect that the height adjustment (orbit improvement) can be performed.
[0029]
(Second Embodiment)
FIG. 5 is a view showing a configuration of a sleeper according to a second embodiment of the present invention, wherein (a) is a top view, and (b) is a cross-sectional view taken along line EE shown in (a). It is.
[0030]
In the second embodiment, referring to FIG. 5, divided upper blocks 1a and 1b are used in place of the upper block 1 of the first embodiment, and the horizontal movement of the upper blocks 1a and 1b ( A gauge holding part 9 for regulating the gauge) is provided. In the second embodiment, the gap between the upper blocks 1a and 1b functions as an injection hole 12 for pouring the filler 8, and the sleeper height adjustment method is the same as in the first embodiment.
[0031]
(Third embodiment)
6A and 6B are diagrams showing a configuration of a sleeper according to a third embodiment of the present invention, wherein FIG. 6A is a top view, and FIG. 6B is a cross-sectional view taken along line FF shown in FIG. It is.
[0032]
In the second embodiment, referring to FIG. 6, compared to the first embodiment, the number of injection holes 12 formed in the upper block 1 and the air vent formed in the side wall 32 of the lower box 3 are reduced. The number of grooves 34 is increased. That is, when the upper block 1 is large, the filler 8 is evenly distributed in the space between the upper block 1 and the bottom surface portion 31 of the lower box 3 at a single injection hole 12 formed in the upper block 1. Therefore, a plurality of injection holes 12 are formed, and a plurality of air vent grooves 34 are formed at positions away from the plurality of injection holes 12 so that the filler 8 is placed in the upper block. 1 and the bottom portion 31 of the lower box 3 are poured evenly. The sleeper height adjustment method in the third embodiment is the same as that in the first embodiment.
[0033]
(Fourth embodiment)
FIG. 7: is a figure which shows the structure of the lower box of 4th Embodiment of the sleeper based on this invention, (a) is sectional drawing, (b) is a lower box shown to (a). It is sectional drawing of the state which accommodated the upper block.
[0034]
In the fourth embodiment, referring to FIG. 7, instead of the configuration of the first embodiment, a flexible wire 43 and a gripping member 44 that grips the wire 43 are used as the tension member 4. The block 1 is configured to be fixed to the lower box 3. Since the wire 43 is fixedly planted on the bottom surface portion 31 of the lower box 3 and cannot be removed, the wire 43 having a length in consideration of the height adjustment is used. Therefore, in a state where the filler 8 is not injected between the upper block 1 and the bottom surface portion 31 of the lower box 3, an excess portion of the wire 43 exists on the upper block 1, but the wire 43 is flexible. Therefore, the surplus part of the wire 43 can be arranged in a place where it does not become an obstacle to the traveling of the train.
[0035]
Further, in the fourth embodiment, since a flexible wire 43 is used as the tension member 4, as shown in FIG. By injecting the filler 8 between the upper block 1 and the bottom surface portion 31 of the lower box 3, different height adjustments can be made on the left and right. The sleeper height adjustment method in the fourth embodiment is the same as that in the first embodiment.
[0036]
(Fifth embodiment)
FIG. 8 is a diagram showing the configuration of a sleeper according to a fifth embodiment of the present invention, (a) is a top view, and (b) is a cross-sectional view taken along line GG shown in (a). It is.
[0037]
In the fifth embodiment, referring to FIG. 8, in addition to the configuration of the first embodiment, the fifth embodiment is provided on the upper side of the side wall 32 of the lower box 3, and the upper block 1 and the side wall 32 of the lower box 3. The seal member 10 that prevents sand, pebbles, dust and the like from entering the gap between them and the injection hole 12 formed in the upper block 1 so as to prevent sand, pebbles, dust and the like from entering the injection hole 12. An injection hole cover 20 is provided.
[0038]
Since the seal member 10 can prevent sand, pebbles, dust and the like from entering the gap between the upper block 1 and the side wall portion 32 of the lower box 3, the upper block 1 can be smoothly lifted when the height is adjusted. At the same time, since the injection hole cover 20 can prevent sand, pebbles, dust and the like from entering the injection hole 12, the filler 8 can be smoothly injected from the injection hole 12 during height adjustment.
[0039]
Note that the present invention is not limited to the above-described embodiments, and it is obvious that the embodiments can be appropriately changed within the scope of the technical idea of the present invention. In addition, the number, position, shape, and the like of the constituent members are not limited to the above-described embodiment, and can be set to a suitable number, position, shape, and the like in practicing the present invention. In each figure, the same numerals are given to the same component.
[0040]
【The invention's effect】
The sleeper and the sleeper height adjustment method of the present invention are configured to adjust the sleeper height with a filler injected between the upper block and the lower box, thereby being stabilized and stabilized by the load of the train. It is possible to perform repair work that adjusts the height of the submerged sleeper without loosening the road bed (ballast) that was used, to prevent large initial settlement after repair work, and to reduce the number of repair work There is an effect that can be.
[0041]
Further, according to the sleeper and the sleeper height adjusting method of the present invention, the height of the sleeper is adjusted by the filler injected between the upper block and the lower box, so that the amount of the filler to be injected can be reduced. By adjusting, the sleeper can be adjusted to an arbitrary height.
[0042]
Furthermore, according to the sleeper and the sleeper height adjustment method of the present invention, the filling state of the filler can be easily grasped by the air vent groove formed in the side wall, and the filler is connected to the upper block 1 and the lower box. It can be injected evenly in between, and there is an effect that a stable orbit can be secured.
[0043]
Further, the sleeper and the sleeper height adjustment method of the present invention can be achieved by using sand, gravel, crushed stone, or the like as a filler to be injected between the upper block and the lower box, so that a plurality of sleeper heights can be obtained. There is an effect that adjustment (orbit improvement) can be performed.
[Brief description of the drawings]
FIG. 1 is a diagram showing a configuration of a sleeper according to a first embodiment of the present invention, (a) is a top view, and (b) is a cross-sectional view taken along line AA shown in (a). It is.
2A and 2B are diagrams showing a configuration of an upper block shown in FIG. 1, in which FIG. 2A is a top view, and FIG. 2B is a cross-sectional view taken along line BB shown in FIG.
3 is a diagram showing a configuration of a lower box shown in FIG. 1, (a) is a top view, (b) is a cross-sectional view taken along line CC shown in (a), and (c). These are DD sectional views taken on the line shown in (a).
FIG. 4 is a process diagram for explaining a height adjusting process of the sleeper according to the first embodiment of the present invention.
5A and 5B are diagrams showing a configuration of a sleeper according to a second embodiment of the present invention, wherein FIG. 5A is a top view, and FIG. 5B is a cross-sectional view taken along line EE shown in FIG. It is.
6A and 6B are diagrams showing a configuration of a sleeper according to a third embodiment of the present invention, wherein FIG. 6A is a top view, and FIG. 6B is a cross-sectional view taken along line FF shown in FIG. It is.
FIGS. 7A and 7B are diagrams showing a configuration of a lower box of a sleeper according to a fourth embodiment of the present invention, wherein FIG. 7A is a cross-sectional view, and FIG. 7B is a view of the lower box shown in FIG. It is sectional drawing of the state which accommodated the upper block.
8A and 8B are diagrams showing a configuration of a sleeper according to a fifth embodiment of the present invention, wherein FIG. 8A is a top view, and FIG. 8B is a cross-sectional view taken along line GG shown in FIG. FIG.
[Explanation of symbols]
1, 1a, 1b, 1c Upper block 11 Tension member through hole 12 Injection hole 2 Tie plate 3 Lower box 31 Bottom surface portion 32 Side wall portion 33 Tension member installation hole 4 Tension member 5 Rubber member 6 Rail 7 Injection tube 8 Filler 9 Gauge holding part 10 Seal member 20 Injection hole cover

Claims (6)

A sleeper laid on the roadbed,
An upper block to which the rail is fastened;
A lower box for storing the upper block;
A tension member for fixing the upper block and the lower box;
An injection hole for injecting a filler between the upper block and the bottom of the lower box ;
Sleepers characterized that you have the air vent grooves are formed on the side wall of the lower box.   The sleeper according to claim 1, wherein the injection hole is formed in the upper block.   The sleeper according to claim 1 or 2, wherein the shape of the upper block and the shape of the bottom surface of the lower box viewed from a plane are substantially the same. The tension member is a bolt that is screwed into a tension member planting hole formed in the bottom surface portion of the lower box and is vertically implanted in the bottom surface portion of the lower box;
The sleeper according to any one of claims 1 to 3 , comprising a nut that is screwed to the bolt to fix the upper block and the lower box. The tension member is a flexible wire planted on the bottom surface of the lower box,
The sleeper according to any one of claims 1 to 3 , comprising a gripping member that grips the wire and fixes the upper block and the lower box. A method for adjusting the height of a sleeper laid on the roadbed,
Releasing the fixation between the upper block to which the rail is fastened and the lower box for storing the upper block;
Lifting the upper block to a predetermined height;
Injecting a filler into a space between the upper block formed by lifting the upper block to a predetermined height and a bottom surface of the lower box;
A sleeper height adjusting method comprising: fixing the upper block and the lower box after the filling material is injected.

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