WO2011062452A2 - Cable protection structure, road structure having the same, and method of constructing the road structure - Google Patents

Cable protection structure, road structure having the same, and method of constructing the road structure Download PDF

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Publication number
WO2011062452A2
WO2011062452A2 PCT/KR2010/008242 KR2010008242W WO2011062452A2 WO 2011062452 A2 WO2011062452 A2 WO 2011062452A2 KR 2010008242 W KR2010008242 W KR 2010008242W WO 2011062452 A2 WO2011062452 A2 WO 2011062452A2
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WO
WIPO (PCT)
Prior art keywords
road
concrete block
longitudinal direction
recessed portion
cable protection
Prior art date
Application number
PCT/KR2010/008242
Other languages
French (fr)
Other versions
WO2011062452A3 (en
Inventor
Haeng Ki Lee
Hyeong Ki Kim
Original Assignee
Korea Advanced Institute Of Science And Technology
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Filing date
Publication date
Application filed by Korea Advanced Institute Of Science And Technology filed Critical Korea Advanced Institute Of Science And Technology
Publication of WO2011062452A2 publication Critical patent/WO2011062452A2/en
Publication of WO2011062452A3 publication Critical patent/WO2011062452A3/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L5/00—Current collectors for power supply lines of electrically-propelled vehicles
    • B60L5/005—Current collectors for power supply lines of electrically-propelled vehicles without mechanical contact between the collector and the power supply line
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
    • B60M7/00—Power lines or rails specially adapted for electrically-propelled vehicles of special types, e.g. suspension tramway, ropeway, underground railway
    • B60M7/003—Power lines or rails specially adapted for electrically-propelled vehicles of special types, e.g. suspension tramway, ropeway, underground railway for vehicles using stored power (e.g. charging stations)
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G9/00—Installations of electric cables or lines in or on the ground or water
    • H02G9/06—Installations of electric cables or lines in or on the ground or water in underground tubes or conduits; Tubes or conduits therefor

Definitions

  • the present invention relates to a protection structure for cables, and more particularly, to a cable protection structure, a road structure in which the cable protection structure is undergrounded, and a method of constructing the road structure.
  • the express highways are currently designed for a speed of about 100 km/h to about 120 km/h. With the development of vehicle technology and the tendency of straightening highway, a plan for improving the design velocity of the highway to a speed of about 160 km/h is being proposed.
  • ITS intelligent transport system
  • the collection of real-time road traffic information the guidance of bus information on local roads (information such as when does the bus arrives? and when a bus is coming?), the provision of real-time bridge/tunnel management information and the like.
  • information with respect to roads and vehicles on the roads may be collected, and then, the collected information may be provided to the vehicles through information communication cables buried in the road.
  • non-contact on-line electric vehicle system instead of charging a electrical power to a battery mounted on the an on-line electric vehicle through a charging apparatus, a power supply device having power cables is buried under a road, and then electromagnetic wave energy generated from the power supply device is transferred to a power acquisition device installed on the on line electric vehicle using electromagnetic induction.
  • the power supply cables in the power supply device or the information communication cables needs be installed near to a surface of the road.
  • the surface of the road in which such cables are undergrounded may be subsided by a wheel load due to vehicle traffic.
  • an electric discharge of the cable may occur to cause the interruption of electromagnetic wave transfer and malfunction and inoperative state of the cable.
  • the present invention provides a protection structure for cables, which prevents a road in which the cables are undergrounded from being subsided and completely waterproofs the cables.
  • the present invention provides a road structure in which the cable protection structure is undergrounded and a method of constructing the road structure.
  • a cable protection structure buried within a recessed portion defined below a surface of a road along a longitudinal direction of the road, which includes: a concrete block,
  • the concrete block includes: spacers embedded in the concrete block and disposed at an interval along the longitudinal direction to secure a cover thickness of an iron rod from a bottom surface of the recessed portion; a plurality of reinforcing rods embedded in the concrete block and arranged on the spacers in a cross direction of the road, the plurality of reinforcing roads being longitudinally spaced a predetermined distance from one another; and one or more cables embedded in the concrete block and disposed on the reinforcing rods along the longitudinal direction.
  • each cable is inserted into a cable protection pipe.
  • a road structure which includes: a recessed portion defined below a surface of a road and extending in a longitudinal direction of the road; and a cable protection structure having a concrete block buried into the recessed portion,
  • the concrete block includes: spacers embedded in the concrete block and disposed at an interval along the longitudinal direction to secure a cover thickness of an iron rod from a bottom surface of the recessed portion; a plurality of reinforcing rods embedded in the concrete block and arranged on the spacers in a cross direction of the road, the plurality of reinforcing roads being longitudinally spaced a predetermined distance from one another; and one or more cables embedded in the concrete block and disposed on the reinforcing rods along the longitudinal direction.
  • a method for constructing a road which includes: forming a recessed portion extending along a longitudinal direction of the road below a surface of the road; disposing spacers spaced from each other along the longitudinal direction on a bottom surface of the recessed portion; arranging reinforcing rods on the spacers spaced from each other in a cross direction of the road, the reinforcing roads being longitudinally spaced a predetermined distance from one another; disposing one or more cables on the reinforcing rods along the longitudinal direction; casting a concrete into the recessed portion to bury the spacer, the reinforcing rods, and the cable into the concrete; and covering ASCON on the road and the concrete after the concrete is cured, thereby constructing the road structure.
  • Fig. 1 is a cross-sectional perspective view of a cable protection structure installed under a smart road in accordance with the present invention
  • Figs. 2A to 4B are views of illustrating sequential processes of installing the cable protection structure of Fig. 1 under a road in accordance with the present invention
  • Fig. 5 is a cross-sectional view of a road showing a state in which electromagnetic wave generated from cables is transferred to a vehicle by electromagnetic induction while the vehicle travels on the road where a cable protection structure is undergrounded;
  • Fig. 6 is a cross-sectional view of illustrating a state in which a wheel load of a vehicle is applied to a cable protection structure buried under a road.
  • Fig. 1 is a cross-sectional perspective view of a cable protection structure installed under a road in accordance with the present invention.
  • the cable protection structure of the present invention is buried under a surface of a road to constitute a portion of the road.
  • the cable protection structure includes a concrete block 11 extending along a longitudinal direction as indicated by an arrow of Fig. 1, or traveling direction of vehicles on the road.
  • the concrete block 11 includes a plurality of reinforcing rods 12 and one or more cables 14 embedded therein.
  • the reinforcing rods 12 are arranged in a cross direction of the road with a distance of a cover thickness of an iron rod from a bottom surface of the concrete block 11, the plurality of reinforcing roads 12 being longitudinally disposed at a predetermined distance.
  • the cables 14 are disposed on the reinforcing rods 12 along the longitudinal direction at an interval with each other in the cross direction of the road.
  • the cables 14 may include an information transmission cable or a power supply cable, which generates electromagnetic wave using electromagnetic induction.
  • each of the cables is inserted into a cable protection pipe 13.
  • the cable protection pipes 13 include a PVC pipe or a corrugated pipe.
  • the concrete block 11 further includes two or more spacers 15 spaced apart from each other in the cross direction of the road and disposed on an under surface of the reinforcing rods 12 along the longitudinal direction so that the reinforcing rods 12 are arranged at a position spaced the cover thickness of the iron rod from the bottom surface of the concrete structure 11.
  • Figs. 2A to 4B are views illustrating sequential processes of installing the cable protection structure of Fig. 1 under a road, wherein Figs. 2A, 3A, and 4A are plan views, and Figs. 2B, 3B, and 4B are longitudinal sectional views.
  • a surface of a road 200 is excavated to form a recessed portion 20 extending along the longitudinal direction of the road 200 as indicated by an arrow.
  • the road not only refers to a road which is a previously completed road, but also includes a newly-established road. Therefore, although the road is excavated to form the recessed portion 20 in this embodiment, for example, in case of a newly-established road, the recessed portion 20 may be formed during a tamping process without excavating the newly-established road.
  • the spacers 15 are disposed at an interval along the longitudinal direction on a bottom surface of the recessed portion 20.
  • the reinforcing rods 12 are then arranged on the spacers 15 in a cross direction of the road, the reinforcing roads being longitudinally spaced a predetermined distance from one another.
  • the cables 14 are prepared with the protection pipe 13 inserted therein.
  • the cable protection pipes 13 are disposed on the reinforcing rods 12 along the longitudinal direction with a distance from each other in the cross direction of the road.
  • ASCON 22 is covered on the surface of the concrete block 11 and the road 200 to complete the construction of the road in which the concrete structure 11 is undergrounded.
  • the cables 14 are embedded in the concrete 21 in a state where the cables 14 are inserted into the cable protection pipes 13, the cables 14 can be sufficiently protected and waterproof.
  • the vehicle 100 when a vehicle 100 travels on a portion at which the concrete block 11 of the cable protection structure is installed, electromagnetic wave from the cables 14 embedded within the concrete structure 11 is provided to a receiver 110 installed in the vehicle 100.
  • the vehicle 100 may continuously receive required information or power from the smart road while traveling on the road.
  • the cables 14 may be disposed near to the surface of the road to sufficiently improve transmission efficiency of the electromagnetic wave to the receiver 110 in the vehicle 100.
  • Fig. 6 is a cross-sectional view of illustrating a state in which a wheel load of a vehicle is applied to the concrete block 11 buried under the smart road.
  • the wheel load of the vehicle is distributed into the concrete block 11 due to an arch structure formed by the cables 14 and the reinforcing rods 12 within the concrete block 11.
  • the distributed load acts as a tensile force with respect to the reinforcing rods 12.
  • the wheel load is not directly applied to the cable protection pipe 13, which may prevent the portion at which the cable protection pipes 13 are installed from being subsided or prevent the cables 14 from being damaged.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Road Paving Structures (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Road Signs Or Road Markings (AREA)
  • Laying Of Electric Cables Or Lines Outside (AREA)

Abstract

A cable protection structure of a concrete block is buried within a recessed portion defined below a surface of a road along a longitudinal direction of the road. The concrete block includes spacers embedded in the concrete block and disposed at an interval along the longitudinal direction to secure a cover thickness of an iron rod from a bottom surface of the recessed portion; a plurality of reinforcing rods embedded in the concrete block and arranged on the spacers in a cross direction of the road, the plurality of reinforcing roads being longitudinally spaced a predetermined distance from one another; and one or more cables embedded in the concrete block and disposed on the reinforcing rods along the longitudinal direction.

Description

CABLE PROTECTION STRUCTURE, ROAD STRUCTURE HAVING THE SAME, AND METHOD OF CONSTRUCTING THE ROAD STRUCTURE
The present invention relates to a protection structure for cables, and more particularly, to a cable protection structure, a road structure in which the cable protection structure is undergrounded, and a method of constructing the road structure.
The express highways are currently designed for a speed of about 100 km/h to about 120 km/h. With the development of vehicle technology and the tendency of straightening highway, a plan for improving the design velocity of the highway to a speed of about 160 km/h is being proposed.
Specifically, with the development of information technologies, the attention is being focused on the establishment of an intelligent transport system (ITS) for the implementation of unmanned driving on roads, the collection of real-time road traffic information, the guidance of bus information on local roads (information such as when does the bus arrives? and when a bus is coming?), the provision of real-time bridge/tunnel management information and the like. In the ITS, information with respect to roads and vehicles on the roads may be collected, and then, the collected information may be provided to the vehicles through information communication cables buried in the road.
Meanwhile, environment-friendly electric vehicles are being commercialized as part of its overall environmental mission. Recently, a non-contact on-line electric vehicle system is gathering great interest. According to the non-contact on-line electric vehicle system, instead of charging a electrical power to a battery mounted on the an on-line electric vehicle through a charging apparatus, a power supply device having power cables is buried under a road, and then electromagnetic wave energy generated from the power supply device is transferred to a power acquisition device installed on the on line electric vehicle using electromagnetic induction. One example of the online electrical vehicles is disclosed in a PCT publication WO2010/098547, published on September 2, 2010, entitled POWER SUPPLY DEVICE, POWER ACQUISITION DEVICE AND SAFETY SYSTEM FOR ELECTROMAGNETIC INDUCTION-POWERED ELECTRIC VEHICLE, which is assigned to the assignee of the present application, entire of which is incorporated herein by reference.
The power supply cables in the power supply device or the information communication cables needs be installed near to a surface of the road. In this case, the surface of the road in which such cables are undergrounded may be subsided by a wheel load due to vehicle traffic. Specifically, it is important to waterproof the cables, but it is not enough to waterproof the cables even though the cables are buried under the road. Thus, due to the defective waterproof cable, an electric discharge of the cable may occur to cause the interruption of electromagnetic wave transfer and malfunction and inoperative state of the cable.
Therefore, the present invention provides a protection structure for cables, which prevents a road in which the cables are undergrounded from being subsided and completely waterproofs the cables.
Further, the present invention provides a road structure in which the cable protection structure is undergrounded and a method of constructing the road structure.
In accordance with a first aspect of the present invention, there is provided a cable protection structure buried within a recessed portion defined below a surface of a road along a longitudinal direction of the road, which includes: a concrete block,
wherein the concrete block includes: spacers embedded in the concrete block and disposed at an interval along the longitudinal direction to secure a cover thickness of an iron rod from a bottom surface of the recessed portion; a plurality of reinforcing rods embedded in the concrete block and arranged on the spacers in a cross direction of the road, the plurality of reinforcing roads being longitudinally spaced a predetermined distance from one another; and one or more cables embedded in the concrete block and disposed on the reinforcing rods along the longitudinal direction.
Preferably, each cable is inserted into a cable protection pipe.
In accordance with a first aspect of the present invention, there is provided a road structure, which includes: a recessed portion defined below a surface of a road and extending in a longitudinal direction of the road; and a cable protection structure having a concrete block buried into the recessed portion,
wherein the concrete block includes: spacers embedded in the concrete block and disposed at an interval along the longitudinal direction to secure a cover thickness of an iron rod from a bottom surface of the recessed portion; a plurality of reinforcing rods embedded in the concrete block and arranged on the spacers in a cross direction of the road, the plurality of reinforcing roads being longitudinally spaced a predetermined distance from one another; and one or more cables embedded in the concrete block and disposed on the reinforcing rods along the longitudinal direction.
In accordance with a third aspect of the present invention, there is provided a method for constructing a road, which includes: forming a recessed portion extending along a longitudinal direction of the road below a surface of the road; disposing spacers spaced from each other along the longitudinal direction on a bottom surface of the recessed portion; arranging reinforcing rods on the spacers spaced from each other in a cross direction of the road, the reinforcing roads being longitudinally spaced a predetermined distance from one another; disposing one or more cables on the reinforcing rods along the longitudinal direction; casting a concrete into the recessed portion to bury the spacer, the reinforcing rods, and the cable into the concrete; and covering ASCON on the road and the concrete after the concrete is cured, thereby constructing the road structure.
The above and other objects and features of the present invention will become apparent from the following description of embodiments given in conjunction with the accompanying drawings, in which:
Fig. 1 is a cross-sectional perspective view of a cable protection structure installed under a smart road in accordance with the present invention;
Figs. 2A to 4B are views of illustrating sequential processes of installing the cable protection structure of Fig. 1 under a road in accordance with the present invention;
Fig. 5 is a cross-sectional view of a road showing a state in which electromagnetic wave generated from cables is transferred to a vehicle by electromagnetic induction while the vehicle travels on the road where a cable protection structure is undergrounded; and
Fig. 6 is a cross-sectional view of illustrating a state in which a wheel load of a vehicle is applied to a cable protection structure buried under a road.
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. Although the present invention shown in the drawings and described in the detailed description are illustrated as exemplary embodiments, and do not limit the scope of the present invention.
Fig. 1 is a cross-sectional perspective view of a cable protection structure installed under a road in accordance with the present invention. The cable protection structure of the present invention is buried under a surface of a road to constitute a portion of the road. The cable protection structure includes a concrete block 11 extending along a longitudinal direction as indicated by an arrow of Fig. 1, or traveling direction of vehicles on the road. The concrete block 11 includes a plurality of reinforcing rods 12 and one or more cables 14 embedded therein.
The reinforcing rods 12 are arranged in a cross direction of the road with a distance of a cover thickness of an iron rod from a bottom surface of the concrete block 11, the plurality of reinforcing roads 12 being longitudinally disposed at a predetermined distance. The cables 14 are disposed on the reinforcing rods 12 along the longitudinal direction at an interval with each other in the cross direction of the road. In the embodiment of the present invention, the cables 14 may include an information transmission cable or a power supply cable, which generates electromagnetic wave using electromagnetic induction. In addition, each of the cables is inserted into a cable protection pipe 13. The cable protection pipes 13 include a PVC pipe or a corrugated pipe.
The concrete block 11 further includes two or more spacers 15 spaced apart from each other in the cross direction of the road and disposed on an under surface of the reinforcing rods 12 along the longitudinal direction so that the reinforcing rods 12 are arranged at a position spaced the cover thickness of the iron rod from the bottom surface of the concrete structure 11.
Figs. 2A to 4B are views illustrating sequential processes of installing the cable protection structure of Fig. 1 under a road, wherein Figs. 2A, 3A, and 4A are plan views, and Figs. 2B, 3B, and 4B are longitudinal sectional views.
Referring now to Figs. 2A and 2B, a surface of a road 200 is excavated to form a recessed portion 20 extending along the longitudinal direction of the road 200 as indicated by an arrow. In the formation of the recessed portion 20, it should be understood that the road not only refers to a road which is a previously completed road, but also includes a newly-established road. Therefore, although the road is excavated to form the recessed portion 20 in this embodiment, for example, in case of a newly-established road, the recessed portion 20 may be formed during a tamping process without excavating the newly-established road.
The spacers 15 are disposed at an interval along the longitudinal direction on a bottom surface of the recessed portion 20. The reinforcing rods 12 are then arranged on the spacers 15 in a cross direction of the road, the reinforcing roads being longitudinally spaced a predetermined distance from one another.
Sequentially, as shown in Figs. 3A and 3B, the cables 14 are prepared with the protection pipe 13 inserted therein. The cable protection pipes 13 are disposed on the reinforcing rods 12 along the longitudinal direction with a distance from each other in the cross direction of the road.
Thereafter, as shown in Figs. 4A and 4B, concrete 21 is cast into the recessed portion 20 to flush with the surface of the road 200, so that the spacers 15, the reinforcing rods 12, and the cable protection pipes 13 are embedded within the concrete 21, thereby forming the concrete block 11 as illustrated in Fig. 1.
As shown in Fig. 5, after the concrete 21 is cured, ASCON 22 is covered on the surface of the concrete block 11 and the road 200 to complete the construction of the road in which the concrete structure 11 is undergrounded.
As described above, since the cables 14 are embedded in the concrete 21 in a state where the cables 14 are inserted into the cable protection pipes 13, the cables 14 can be sufficiently protected and waterproof.
In the road structure constructed by the above-described processes, as shown in Fig. 5, when a vehicle 100 travels on a portion at which the concrete block 11 of the cable protection structure is installed, electromagnetic wave from the cables 14 embedded within the concrete structure 11 is provided to a receiver 110 installed in the vehicle 100. Thus, the vehicle 100 may continuously receive required information or power from the smart road while traveling on the road. Specifically, according to the present invention, the cables 14 may be disposed near to the surface of the road to sufficiently improve transmission efficiency of the electromagnetic wave to the receiver 110 in the vehicle 100.
Fig. 6 is a cross-sectional view of illustrating a state in which a wheel load of a vehicle is applied to the concrete block 11 buried under the smart road. As shown, the wheel load of the vehicle is distributed into the concrete block 11 due to an arch structure formed by the cables 14 and the reinforcing rods 12 within the concrete block 11. The distributed load acts as a tensile force with respect to the reinforcing rods 12. Thus, the wheel load is not directly applied to the cable protection pipe 13, which may prevent the portion at which the cable protection pipes 13 are installed from being subsided or prevent the cables 14 from being damaged.
While the invention has been shown and described with respect to the preferred embodiments, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the scope of the invention as defined in the following claims.

Claims (5)

  1. A cable protection structure buried within a recessed portion defined below a surface of a road along a longitudinal direction of the road, comprising:
    a concrete block, wherein the concrete block comprises:
    spacers embedded in the concrete block and disposed at an interval along the longitudinal direction to secure a cover thickness of an iron rod from a bottom surface of the recessed portion;
    a plurality of reinforcing rods embedded in the concrete block and arranged on the spacers in a cross direction of the road, the plurality of reinforcing roads being longitudinally spaced a predetermined distance from one another; and
    one or more cables embedded in the concrete block and disposed on the reinforcing rods along the longitudinal direction.
  2. The cable protection structure of claim 1, wherein each cable is inserted into a cable protection pipe.
  3. A road structure comprising:
    a recessed portion defined below a surface of a road and extending in a longitudinal direction of the road; and
    a cable protection structure having a concrete block buried into the recessed portion,
    wherein the concrete block includes:
    spacers embedded in the concrete block and disposed at an interval along the longitudinal direction to secure a cover thickness of an iron rod from a bottom surface of the recessed portion;
    a plurality of reinforcing rods embedded in the concrete block and arranged on the spacers in a cross direction of the road, the plurality of reinforcing roads being longitudinally spaced a predetermined distance from one another; and
    one or more cables embedded in the concrete block and disposed on the reinforcing rods along the longitudinal direction.
  4. The road structure of claim 3, wherein each cable is inserted into a cable protection pipe.
  5. A method for constructing a road, the method comprising:
    forming a recessed portion extending along a longitudinal direction of the road below a surface of the road;
    disposing spacers spaced from each other along the longitudinal direction on a bottom surface of the recessed portion;
    arranging reinforcing rods on the spacers spaced from each other in a cross direction of the road, the reinforcing roads being longitudinally spaced a predetermined distance from one another;
    disposing one or more cables on the reinforcing rods along the longitudinal direction;
    casting a concrete into the recessed portion to bury the spacer, the reinforcing rods, and the cable into the concrete; and
    covering ASCON on the road and the concrete after the concrete is cured, thereby constructing the road structure.
PCT/KR2010/008242 2009-11-23 2010-11-22 Cable protection structure, road structure having the same, and method of constructing the road structure WO2011062452A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR20090113059A KR101042948B1 (en) 2009-11-23 2009-11-23 Smart Highway having Embedded Cable
KR10-2009-0113059 2009-11-23

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WO2011062452A2 true WO2011062452A2 (en) 2011-05-26
WO2011062452A3 WO2011062452A3 (en) 2011-11-10

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GB2505516A (en) * 2012-09-04 2014-03-05 Bombardier Transp Gmbh Pavement slab assembly having cable bearing element

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WO2013007825A3 (en) * 2011-07-13 2013-10-24 Bombardier Transportation Gmbh Conductor arrangement for producing an electromagnetic field and route for vehicles, in particular for road automobiles, comprising the conductor arrangement
US9630506B2 (en) 2011-07-13 2017-04-25 Bombardier Transportation Gmbh Conductor arrangement for producing an electromagnetic field and route for vehicles, in particular for road automobiles, comprising the conductor arrangement
GB2505516A (en) * 2012-09-04 2014-03-05 Bombardier Transp Gmbh Pavement slab assembly having cable bearing element
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JP2015536124A (en) * 2012-09-04 2015-12-17 ボンバルディアー トランスポーテーション ゲゼルシャフト ミット ベシュレンクテル ハフツング Pavement plate assembly and method for constructing pavement plate assembly
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US9745703B2 (en) 2012-09-04 2017-08-29 Bombardier Transportation Gmbh Pavement slab assembly and method of building a pavement slab assembly

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KR20110056646A (en) 2011-05-31
KR101042948B1 (en) 2011-06-20
WO2011062452A3 (en) 2011-11-10

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