JP2002021001A - Roadbed bearing facility for rolling stock - Google Patents

Abstract

PROBLEM TO BE SOLVED: To store rainwater falling on a road surface while reducing noises and vibrations generated by the traveling of a rolling stock. SOLUTION: A roadbed bearing facility for the rolling stock has a roadbed 3, on which a rail 77 for a tramcar is laid, and a structure 5 bearing the roadbed 3, and the roadbed 3 and the structure 5 are installed into a grooved recess 73 formed in the travelling direction 80 of the rolling stock, and interrupted structurally to a ground 75 on the outside of the recess 73. The structure 5 has unit members 12, which are aligned in three dimensions and connected mutually, posts 50 mounted in the vertical direction, beams 52 borne to the posts 50 and secured in the horizontal direction and a water-barrier sheet 63 annexed to the bottom 8 and side-face lower sections 9 of the structure 5, and a fixed quantity of water can be stored.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roadbed support facility for supporting a roadbed of a vehicle such as an automobile, a tram or a railway.

[0002]

2. Description of the Related Art Conventionally, a roadbed support facility of a vehicle, for example, a roadbed of a tram is provided with a flattened layer of crushed stone, sand or the like at the bottom where the ground is dug from the surface of the ground, and a rail is laid on the flattened layer. It is a common practice to provide a roadbed to be used, lay the rail directly or via a sleeper or the like, and lay a surface material such as a paving stone or concrete from the upper surface of the roadbed to the upper surface of the rail.

[0003]

However, in the above-mentioned roadbed support facility for a tram, when the tram runs on rails, a large noise or vibration is generated. Such noises and vibrations are transmitted to neighboring buildings and structures without sufficiently attenuated energy, so that the residents living there are uncomfortable and adversely affect the structures and facilities.

[0004] Rainwater that has fallen on the road surface is drained from a gutter provided on the road surface into a waterway or the like. Affects buildings and facilities. In addition, the rainwater that falls is drained without being used beneficially.

It is an object of the present invention to store rainwater that has fallen on a road surface and to reduce noise and vibration generated by running of a vehicle.

[0006]

In order to solve the above problems, the present invention provides a roadbed on which a rail on which a vehicle travels is laid,
A structure that supports the roadbed, the structure and the roadbed are provided in a groove-shaped recess formed in the traveling direction of the vehicle, and are structurally shut off from the ground outside the recess. The structure has a space capable of storing water.

[0007] By doing so, the vehicle travels on the rail laid on the roadbed. The roadbed is supported by the structure including the traveling vehicle. At this time, the roadbed is preferably supported by the upper surface of the structure. In this case, since the roadbed is supported by the surface, the strength or rigidity of the roadbed itself on which the vehicle travels can be reduced. Since the strength or rigidity of the roadbed itself can be reduced, the thickness of the roadbed can be reduced. Since the thickness of the roadbed can be reduced, the material of the roadbed is reduced and the roadbed becomes economical.

Further, the roadbed and the structure provided in the groove-shaped depression are structurally shut off from the ground outside the depression, so that the vibration generated by running of the vehicle is located outside the depression. To be transmitted to the ground. Since the vibration is not easily transmitted to the ground located outside the dent, the influence of the vibration on surrounding buildings and structures constructed along the traveling direction of the vehicle can be reduced. At the same time, the structure and the roadbed are structurally insulated from the ground outside the depression, so that noise generation is reduced.

[0009] Rainwater that has fallen on the road surface can be stored in the space inside the structure. In this case, the structure is preferably provided with a water-impermeable material on the bottom and the lower side surface. Since a water-impermeable material is attached to the bottom of the structure and the lower part of the side surface, a certain amount of water can be stored up to the upper end of the attached water-impermeable material. Since a certain amount of water can be stored, the energy of noise and vibration generated by running of the vehicle is absorbed by the stored water.

[0010] Since the generated noise or vibration energy is absorbed by the stored water, the magnitude of the noise or vibration is attenuated, and the neighboring buildings constructed along the traveling direction of the vehicle,
The influence of noise and vibration on the building or those who live or work there is reduced. In addition, the stored water can be used as emergency water such as fire water, drinking water during an earthquake, toilet water, and drought water. Furthermore, by setting the capacity to exceed this fixed amount of stored water, if a large amount of rain falls at once, temporarily store it, and then take time to infiltrate it into the underground or drain it to a drain. Can be.

Further, the structure preferably has a plurality of unit members connected to each other. By connecting the structure to a plurality of unit members, the weight per unit member can be reduced, so that the transportation and handling of the unit members are facilitated. Since the transportation and handling of the unit members are facilitated, the construction of assembling the structure by connecting the unit members is facilitated, and the construction period is shortened.

Further, it is preferable that the unit member is formed of a lightweight material. The material of the unit member is a synthetic resin such as polypropylene, a light metal such as an aluminum alloy, a lightweight concrete, or the like, and particularly a material having corrosion resistance to water. Since the unit member is formed of a lightweight material, the weight is very small, and the assembling workability is improved.

Since the structure is assembled by connecting a plurality of unit members, the structure can be elastically formed into a shape according to a place where the structure is provided and conditions. Further, the structure preferably has a column provided in the vertical direction and a beam supported by the column and provided in the horizontal direction. A part of the load applied in the vertical direction of the structure is supported by the unit members, while the remaining load is supported by the columns. The beam receives the load in the vertical direction and transmits it to the columns, and connects the columns to increase the rigidity and strength of the structure. The columns and beams are made of concrete, shaped steel, steel plate, or the like using a steel frame or a reinforcing bar.

Further, the unit members forming the structure are provided in a three-dimensional array, and the columns are provided in a space projected by a minimum rectangular surface circumscribing the unit members in the vertical direction.
The beam is preferably provided in a space where a minimum rectangular surface circumscribing the unit member in the horizontal direction projects. The unit member is 3
Since the space is provided in a three-dimensional manner, the space projected by the smallest rectangular surface circumscribing the unit member in the vertical direction is a space linearly formed in the vertical direction. Columns can be provided in this space.

Similarly, the space projected by the smallest rectangular surface circumscribing the unit member in the horizontal direction is a space formed linearly in the horizontal direction. Beams can be provided in this space. The space in which the columns or beams are provided may be a space where one of the unit members projects, or a space where a plurality of unit members project. In short, it is preferable to determine the size of the columns and beams according to the purpose of use of the structure, and to determine the size of the space in which the columns and beams are provided.

Further, the unit member includes a base having a flat surface on one side, and a columnar portion protruding from the other side of the base, and the structure includes the bases and the columnar portion. Are preferably connected to each other. Since the tips of the columnar portions of the unit member are connected to each other, a space is formed between the columnar portions. Since the substrates having flat surfaces are connected to each other, the substrates having the flat surfaces combined are surely connected to each other. Furthermore, since the edges of the base are connected to each other, it is possible to form a structure that is spread in a plane.

Next, the requirements constituting the present invention will be described in more detail. The vehicle is a tram running on a rail of a road surface, a railcar running on a rail of a railway, or the like.
In addition, a car traveling on a roadbed may be included. The roadbed is preferably made of a rigid material that allows rainwater to penetrate and be stored in the underlying structure, but if a material with a low degree of penetration of rainwater is used, the rainwater It is preferable to provide an inflow hole for inflow into the space. The surface layer laid on the roadbed may be laid with, for example, a paving stone laid with a gap through which rainwater permeates, or a material whose material itself has water permeability.

The roadbed and the structure are structurally isolated from the ground located outside the depression. For this reason, an appropriate gap is provided between the roadbed and the structure and the ground located outside the dent, or a synthetic resin material, an inorganic material, a metal or a composite material thereof is interposed in this gap, and relatively. You may be able to move. Further, the structure may be provided with partitions at appropriate intervals in a direction perpendicular to the longitudinal direction (the traveling direction of the vehicle). When the road surface is inclined, the bias of the stored water is prevented. In addition, by providing a partition, the stored water can be used systematically.

The groove-shaped recess is provided along the traveling direction of the vehicle, and becomes a tunnel-like by being covered with a surface layer and a roadbed. The shape of the recess is U-shaped, U-shaped, trapezoidal, or another shape. The bottom of the recess is preferably flat.
The water stored in the dent may be rainwater that has fallen on the road surface may be caused to flow in from the above-described inflow hole, or may be tap water, well water, or other water.

The material that is impermeable to water is not particularly limited as long as it has water resistance and strength against water pressure. For example, concrete walls (preferably including reinforcing bars), metal plates,
It is preferable to use a water-blocking material such as an inorganic plate, a synthetic rubber sheet, or a synthetic resin sheet such as polyethylene or vinyl chloride. Furthermore, by extending the water-permeable material upward from the water-impermeable material, the water-permeable material can be stored up to the height provided with the water-impermeable material. Can be permeated.

The fixed amount of water stored in the space of the structure is preferably an amount of water that attenuates noise and vibration generated by the traveling vehicle. That is, by adjusting the amount of stored water, generated noise and vibration are prevented from resonating in the space of the structure. The fixed amount of water to be stored is adjusted according to the characteristics of noise and vibration generated by running of the vehicle. That is, it is preferable to change the natural frequency of the space inside the dent with respect to the frequency of the generated noise and vibration so that the two do not coincide with each other.

The unit member is of a pressure-resistant strength capable of receiving and supporting the roadbed on which the vehicle travels and sufficiently supporting the load applied to the roadbed. The load applied to the roadbed includes the fixed weight of the weight of the roadbed itself, the rails, the surface layer on which the rails are laid, and the like, and the fluctuating load of the vehicle caused by the traveling of the vehicle. The material of the unit member is not particularly limited as long as it is a material excellent in pressure resistance, vibration absorption, water resistance, and the like, but is preferably formed of a synthetic resin, for example, polypropylene. The unit member made of synthetic resin has pressure resistance, vibration absorption,
Excellent water resistance, light weight, and excellent moldability, workability, and economy.

Further, when the structural members are formed by connecting the unit members, the shape of the unit members may be a frame shape, a box shape, a container shape or a shape in which a columnar portion is protruded from the base as described above. can do. In particular, in the case of a box shape, a container shape, or the like, it is preferable to provide a through hole in a side wall of the box shape, the container shape, or the like so that the stored water can move between the unit members. In short, the unit member has a space inside which communicates with the outside, and can have an appropriate shape as long as it has necessary strength or rigidity.

The unit member may be provided with a connecting portion which can be connected in the left, right, front, rear, up and down directions. The number of stacked unit members is determined by the height between the lower surface of the roadbed on which the vehicle runs and the bottom surface of the recess. When the unit member has a columnar portion, the columnar portion has a columnar shape, a cylindrical shape, a prismatic shape, or the like.

The porosity or porosity S of the unit member, that is, S = (V1-V2) / V1, where V1: the volume of one member forming the space V2: the mass is converted from the mass of one member forming the space The larger the volume, the better, but if the porosity S is too large, it may not be possible to secure the necessary pressure resistance strength of the member, the strength against lateral load, and the like. The upper limit of the space ratio S is up to 97%. Conversely, when the space ratio S is small, the strength of the member can be increased, but the volume occupied by the member increases, and the space formed by the columnar portion decreases.

The unit members are three-dimensionally aligned, which means that the unit members are aligned vertically, horizontally, and vertically.

[0027]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a vehicle roadbed support facility according to an embodiment of the present invention. In FIGS. 1 to 11, the same or equivalent structures and working parts are denoted by the same reference numerals.

FIG. 1 is a sectional view showing a first embodiment of a roadbed support facility for a vehicle according to the present invention. FIG.
FIG. 3 is a sectional view taken along line -I. The roadbed support facility 1 of the tram according to the first embodiment is provided on a road 82, and the noise and vibration generated when a tram (vehicle) 79 running on the road travels, for example, the noise and vibration of the wheel 81 and the rail 77. It is to reduce noise and vibration generated between them. The recess 73 is provided in a groove shape in the traveling direction 80 of the tram 79. The foundation 66 is, for example, provided with a layer of crushed stone 67 at the bottom where the ground 74 is excavated, and further laid a foundation concrete 68 reinforced with a reinforcing bar or the like on the crushed stone 67.

Further, the roadbed support facility 1 for the vehicle includes a foundation 6
The vehicle includes a structure 5 built on 6 and a roadbed 3 supported by the structure 5. Tram 79 on the roadbed 3
Rail 77 is laid. The structure 5 and the roadbed 3 are provided in a groove-shaped recess 73, and are structurally shut off from the ground 75 outside the recess 73. A water-blocking sheet 63 is attached to the bottom 8 and the lower side 9 of the structure 5 as a water-impermeable material.

Further, a water-permeable sheet (a material through which water can pass) 71 is provided to extend to the upper end 64 of the water-shielding sheet.
The height at which the water-blocking sheet 63 is provided absorbs noise and vibration generated by the traveling of the tram 79 as much as possible,
The amount of water that resonates or does not resonate inside the recess 73 is determined. Further, protective sheets 72a and 72b are provided on both sides of the water-blocking sheet 63 and the water-permeable sheet 71.

The structural body 5 includes a plurality of unit members 12 connected to each other, a column 50 provided in a vertical direction, and the column 5.
And a beam 52 supported in the horizontal direction.
The unit members 12 are provided three-dimensionally in a space other than the space where the columns 50 and the beams 52 are provided. And
The structure 5 allows water to be stored in the space 6 formed by the unit members 12 as described later. The columns 50 are provided in two rows in a direction orthogonal to the traveling direction 80. The beam 52 is provided immediately below the roadbed 3 and directly above the foundation 66. However, the locations and the numbers of the columns 50 and the beams 52 are not limited to these, and are determined as appropriate by design.

As shown in FIG. 2, the column 50 is provided in a space projected by a minimum rectangular surface circumscribing one of the unit members 12 in the vertical direction. That is, the base 1 of the unit member
A plane corresponding to the size of 6 is a vertically elongated rectangular parallelepiped space to be projected. A column 50 having a required cross-sectional size is provided in this space. The largest possible size is base 1
6 area. Further, the columns 50 are provided at appropriate intervals in the running direction 80. A beam 52 is bridged between the columns 50 in a direction orthogonal to the running direction 80.

FIG. 3 is a sectional view taken along the line II-II of FIG.
The beam 52 is provided in a horizontally long rectangular parallelepiped space projected by the surface of the smallest rectangle 14 circumscribing the unit member 12 in the horizontal direction. The left and right side surfaces and the bottom surface of the beam 52 are surrounded by a beam spacer 57.

As shown in FIG. 1 and FIG.
2 has an inflow hole 4 for introducing rainwater falling onto the space of the structure 5. The position, size, and the like of the inlet hole 4 are determined as appropriate in consideration of the rainfall in the area where the roadbed support facility is installed. It is convenient if the roadbed 3 is made of a rigid material and has a high degree of penetration of rainwater.
The rainwater can be stored in the space of the structure 5 by providing the inflow hole 4 for flowing into the space. The surface layer 2 laid on the roadbed 3 may be laid with, for example, a paving stone laid with a gap for allowing rainwater to permeate or a material having water permeability to the material itself.

In FIG. 1, the material of the water-shielding sheet 63 is a material which is impermeable to water and is a flexible synthetic rubber sheet or a synthetic resin sheet, for example, a sheet of polyethylene, vinyl chloride or the like. Use a size of about 3 mm. The water-permeable sheet 71 extends from the upper end 64 of the water-blocking sheet to a position below the flattening layer 76 of the roadbed located outside the recess. As the material of the water-permeable sheet 71, for example, a composite bonded sheet of polyester and polypropylene is used. The crushed stone 7 is on the outside of the water-permeable sheet 71.
8 are filled.

The protection sheet 72a extends to the surface of the road. The protection sheet 72b extends to below the flattening layer 76. The protective sheets 72a, 72b are made of synthetic resin long fibers, for example, a non-woven fabric made of polyester, and have a thickness of about 3 to 15 mm. The protection sheets 72a and 72b alleviate the relative unevenness and friction between the unit member 12 and the water-blocking sheet 63 or the water-permeable sheet 71, and prevent the water-blocking sheet 63 or the water-permeable sheet 71 from being damaged.

FIG. 4 is a perspective view of a unit member according to the first embodiment. FIG. 5 is a sectional view of the unit member of FIG. The unit member 12 includes a base 16 having a flat surface 19 on one side, and a column 32 protruding from the other side of the base 16. In the structure 5 of the first embodiment, the bases 16 and the tips 34 of the columnar portions are connected to each other,
It is a dimensionally assembled one. The unit member 12 is
It is formed of a rigid, lightweight material, and in this embodiment, is formed of a synthetic resin, polypropylene.

The base 16 has edge connecting portions 22 at its four corners 21. The edge connection portion 22 is formed by a surface depressed from the flat surface 19 and an engagement hole 24 provided in this surface. The bases 16 are engaged with each other by inserting a projection 45 (shown in FIG. 7) of the edge connection member 44 into an engagement hole 24 provided in the edge connection portion 22.

Further, the base 16 has a through hole 25 through which one side (the side where the flat surface 19 is located) and the other side (the side with the reinforcing ribs) pass. The through-holes 25 are provided with 16 rectangular holes in point symmetry with respect to the center 30 of the base, at positions avoiding the reinforcing ribs. The position where the through-hole 25 is provided and its shape and size are not limited to the present embodiment, but are provided at an appropriate position, shape and size where the strength and rigidity of the unit member 12 are ensured. The columnar portions 32 are provided in a double cylindrical shape on the other side of the base 16 by projecting the center 30 four points symmetrically.

As shown in FIG. 5, the columnar portion 32 has an outer cylinder 39 whose diameter gradually decreases toward the distal end 34,
And an inner cylinder 40 that is folded inward from 4 and gradually reduced in diameter and extended to a flat surface 19 position. The end surface of the inner cylinder 40 on the plate member 18 side is closed, and a reinforcing rib 42 is provided inside the inner cylinder 40. Further, the base 16 has a substantially flat surface 1.
9 has a plate member 18 and an edge frame 28 formed on the other side of the plate member 18 along the edge 27 of the plate member.
On the other side of the plate member 18 (the side on which the edge frame 28 is provided), reinforcing ribs (not shown) are provided in a lattice shape.

As described above, since the columnar portion 32 has the outer cylinder 39 and the inner cylinder 40, an annular opening between the outer cylinder 39 and the inner cylinder 40 is formed on the flat surface 19. A circular opening is formed in the surface of the tip 34 of the columnar portion. End connection part 3
5 is formed by a flat surface of the tip 34 of the columnar portion and eight engaging holes (not shown) provided at equal intervals in the circumferential direction of this surface. In this embodiment, a projection of an end connecting member (not shown) is inserted into two of the eight engagement holes to engage with each other.

The size of the unit member 12 is such that the length and width of the base 16 are about 700 mm and the length of the column 32 is 390 mm.
mm. As such a member 12, for example, Shin Shin Block, a trade name of Hayashi Bussan Co., Ltd., can be suitably used.

FIG. 6 shows the columns 50, beams 52, unit members 12, and spacers 54, 57, 5 in the first embodiment.
FIG. 9 is a cross-sectional view showing a mounting state of No. 9; The pillar 50 is surrounded by a pillar spacer 54. When the column 50 is, for example, reinforced concrete, the column 50 is formed by arranging the column spacer 54 as shown, arranging a reinforcing bar in a space surrounded by the column spacer 54, and pouring concrete. .

Similarly, when the beam 52 is made of, for example, reinforced concrete, the beam 52 has a beam spacer 57 and a connection spacer 59 arranged as shown in the drawing, and is surrounded by the beam spacer 57 and the connection spacer 59. It is formed by placing rebar in space and pouring concrete.

FIG. 7 is a plan view showing the connection relationship between the spacers 54, 57, 59 and the unit member 12 in the first embodiment. The beam spacers 54 and 57, the connection spacer 59 and the base 16 of the unit member are connected via the edge connection member 44. In addition, the connecting spacer 5
9, the beam spacer 57 and the column spacer 54 are connected to each other by the connecting member 61.

FIG. 8 is a perspective view showing the connection relationship between the column spacer 54, the connection spacer 59, and the beam spacer 57 in the first embodiment. FIG. 9 is a perspective view showing the column spacer 54 and the edge connecting member 44 shown in FIG. The pillar 50 (not shown) is surrounded by four pillar spacers 54. The shape of the column spacer 54 is such that a plate-like flange 55 is formed at one end of the L-shaped section member 54a.
Having. When four column spacers 54 are connected to face each other, the size of the plate-like flange 55 is formed to be the same as the size of the base 16 of the unit member.

The beam spacer 57 has a Z-shaped cross section. The connection spacer 59 has an end plate 59b at the upper end of an L-shaped cross-sectional member 59a and a substrate 59 at the lower end.
c. The two orthogonal beam spacers 57 adjacent to each other are connected via a connection spacer 59. Further, the flange 55 of the column spacer 54 is connected to the connection spacer 59 via the edge connection member 44.

The roadbed support facility of the first embodiment having the above structure operates as follows. That is,
In FIG. 1, a tram 79 runs on a rail 77 laid on the roadbed 3. The roadbed 3 is supported by the structure 5 including the traveling tram 79. Since the roadbed 3 on which the tram 79 runs is supported by the structure 5, the strength or rigidity of the roadbed 3 itself can be reduced. Since the strength or rigidity of the roadbed 3 itself can be reduced, the thickness of the roadbed 3 can be reduced. Since the thickness of the roadbed 3 can be reduced, the material of the roadbed 3 is reduced and the roadbed 3 becomes economical.

Further, since the roadbed 3 and the structure 5 provided in the groove-shaped depression 73 are structurally shut off from the ground 75 outside the depression, the vibration generated when the tram 79 runs is generated. Is hardly transmitted to the ground 75 located outside the dent. Ground 7 where vibration is located outside the dent
5 is difficult to reach, so the tram travel direction 80
The influence of vibration on surrounding buildings and structures constructed along (FIG. 2) can be reduced. Further, since the roadbed 3 and the structure 5 are structurally isolated from the ground 75 outside the dent, generation of noise is reduced.

The rainwater falling on the road 82 is
Since the water-blocking sheet 63 is attached to the bottom of the structure 5 and the lower portion 9 of the side surface, a certain amount of water up to the upper end 64 of the water-blocking sheet can be stored. Since a certain amount of water can be stored, energy of noise and vibration generated by running of the tram 79 by storing water in the structure 5 is absorbed by the stored water.

Since the noise and vibration energy generated in this manner is absorbed, the magnitude of the noise and vibration is attenuated, and the influence of the noise and vibration on nearby buildings and local residents along the traveling direction 80 of the tram is reduced. Can be smaller. In addition, the stored water can be used as emergency water such as fire water, drinking water during an earthquake, toilet water, and drought water. Furthermore, by setting the capacity to exceed the fixed amount of stored water, when a large amount of rain falls at one time, it can be temporarily stored, and thereafter can be infiltrated underground or drained to a drainage channel over time.

Further, since the weight of each unit member 12 is small, it can be easily transported and handled. Unit member 1
2 is easy to transport and handle, so that the construction of assembling the structure 5 by connecting the unit members 12 is easy, and the construction period is shortened. Although the material of the unit member 12 is polypropylene, since the unit member 12 is formed of a lightweight material, the weight is very small and the assembling workability is improved.

Since the structure 5 is assembled by connecting a plurality of unit members 12, the structure 5 can be elastically formed into a shape according to the place where the structure 5 is provided and conditions. Part of the load applied to the structure 5 in the vertical direction is supported by the unit members 12, but part of the load is supported by the columns 50. Beam 52
Receives the load in the vertical direction and transmits it to the columns 50, and connects the columns 50 to each other to increase the rigidity and strength of the structure 5.

Since the unit members 12 are provided in a three-dimensional array, the space projected by the smallest rectangular surface circumscribing the unit members in the vertical direction is a space formed linearly in the vertical direction. The column 50 can be provided in this space. Similarly, the space projected by the smallest rectangular surface circumscribing the unit member 12 in the horizontal direction is a space formed linearly in the horizontal direction. The beam 52 can be provided in this space.

The rainwater that has fallen on the road flows in through the inflow hole 4 of the roadbed and is stored in the structure 5. Upper end 64 of water-blocking sheet
By providing the water-permeable sheet 71 from above, water can be stored up to the upper end 64 of the water-shielding sheet, and the stored water exceeding this can be permeated underground or drained to a water discharge channel over time.

The fixed amount of water to be stored is adjusted according to the characteristics of the noise and vibration generated by running the tram 79 so that the generated noise and vibration do not resonate in the space inside the dent. That is, the natural frequency of the space inside the dent is changed with respect to the frequency of the generated noise and vibration so that the two do not match.

As shown in FIG. 6, since the tips 34 of the columnar portions of the unit member 12 are connected to each other, a space 6 is formed between the columnar portions 32. Since the bases 16 having the flat surfaces 19 are connected to each other, the bases 16 having the flat surfaces 19 combined are connected to each other in a stable state. Further, by connecting the edges 27 of the base to each other, it is possible to form the structure 5 which spreads in a plane.

FIG. 10 is a sectional view of a tram 79 in a traveling direction of a tram 79 according to a second embodiment of the tram support facility according to the present invention. Roadbed facility 1 of the tram according to the second embodiment
The case in which the depression 73 is inclined (inclination angle α) with respect to the traveling direction 80 of the tram. If the bottom of the recess 73 is inclined, the stored water naturally goes to the lower side, and there is a possibility that a portion where the water is not stored may be formed. For this reason, the partition 65 for preventing the bias of water is provided in the traveling direction 80 of the tram as appropriate.

By doing so, the bias of the stored water 84 in the running direction 80 stored in the recess 73 is reduced, and the degree of attenuation of noise and vibration in the running direction 80 is averaged. Further, by providing the partition 65, the stored water can be used systematically. Other structures and operations in the roadbed facility 1 of the tram according to the second embodiment are the same as those of the first embodiment, and thus description thereof will be omitted.

FIG. 11 shows a third embodiment of the roadbed support facility for a tram according to the present invention, and is a cross-sectional view of the tram 79 in the running direction. The roadbed facility 1 of the tram according to the third embodiment is provided with a portion 70 in which the bottom of the dent is lowered at appropriate intervals in the running direction 80 of the tram to increase the water depth. By doing so, it is possible to reduce periodic noise and vibration caused by running of the tram. In this way, the range of designs for attenuating noise and vibration can be increased.
The other structures and operations of the roadbed facility 1 of the tram according to the third embodiment are the same as those of the first embodiment, and thus description thereof will be omitted.

In the first to third embodiments, as a means for storing a certain amount of water, a combination of a water-blocking sheet and a water-permeable sheet is used. A pipe for discharging water and a valve provided in this pipe may be provided.

As described above, the present invention has been described in detail with reference to the illustrated embodiments, but the present invention is not limited to these embodiments. For example, although the vehicles of the first to third embodiments relate to the tram 79, it is needless to say that the vehicles can be similarly applied to a railway vehicle, an automobile, and other heavy vehicles. In short, it goes without saying that various modifications can be made and various modifications can be made without departing from the spirit of the present invention.

[0063]

According to the present invention, it is possible to store rainwater that has fallen on the road surface, and at the same time, to reduce the noise generated by the running of the vehicle,
Vibration can be reduced.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a first embodiment of a roadbed support facility for a vehicle according to the present invention.

FIG. 2 is a sectional view taken along line II of FIG. 1;

FIG. 3 is a sectional view taken along line II-II of FIG.

FIG. 4 is a perspective view of a unit member according to the first embodiment.

FIG. 5 is a sectional view of the unit member of FIG. 4;

FIG. 6 is a cross-sectional view showing a mounting state of columns, beams, unit members, and respective spacers in the first embodiment.

FIG. 7 is a plan view showing a connection relationship between each spacer and a unit member in the first embodiment.

FIG. 8 is a perspective view showing a connection relationship among a column spacer, a connection spacer, and a beam spacer in the first embodiment.

FIG. 9 is a perspective view showing a pillar spacer and an edge connecting member shown in FIG. 8;

FIG. 10 is a cross-sectional view of a roadbed support facility for a vehicle according to a second embodiment of the present invention, which is taken along a traveling direction of a tram.

FIG. 11 is a cross-sectional view of a roadbed support facility of a vehicle according to a third embodiment of the present invention in a traveling direction of a road vehicle.

[Explanation of symbols]

 DESCRIPTION OF REFERENCE NUMERALS 1 Tramway subbase support facility (vehicle subbase support facility) 3 Subbase 5 Structure 6 Space 8 Bottom 9 Side lower portion 12 Unit member 13 Minimum rectangle in vertical direction 14 Minimum rectangle in horizontal direction 16 Base 19 Flat surface 32 Columnar portion 34 Tip 50 Column 52 Beam 63 Waterproof sheet (water-impermeable material) 73 Depression 75 Outer ground 77 Rail 79 Tram (vehicle) 80 Running direction

Claims (5)

[Claims] 1. A roadbed on which a rail on which a vehicle travels is laid,
A structure that supports the roadbed, the structure and the roadbed are provided in a groove-shaped recess formed in the traveling direction of the vehicle, and are structurally shut off from the ground outside the recess. A roadbed support facility for a vehicle, wherein the structure has a space capable of storing water. 2. A roadbed support facility for a vehicle according to claim 1, wherein the structure is provided with a water-impermeable material at a bottom portion and a lower portion of a side surface thereof, so that a predetermined amount of water can be stored. 3. The roadbed support facility according to claim 1, wherein the structure has a plurality of unit members connected to each other. 4. The method according to claim 1, wherein
The unit members forming the structure are provided in three-dimensional alignment, the structure includes a column provided in a vertical direction, and a beam supported by the column and provided in a horizontal direction, The pillar is provided in a space where the smallest rectangular surface circumscribing the unit member in the vertical direction projects, and the beam is provided in a space where the smallest rectangular surface circumscribing the unit member in the horizontal direction projects. Storage support facility. 5. The method according to claim 1, wherein
The unit member has a base having a flat surface on one side,
A columnar portion protruding from the other side of the base; and the structure is a waterway storage support facility in which the bases and the ends of the columnar portions are connected to each other.