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CN-117569123-B - Rail embedded floating ballast bed

CN117569123BCN 117569123 BCN117569123 BCN 117569123BCN-117569123-B

Abstract

The invention relates to a steel rail embedded floating track bed, which comprises a plurality of groups of track units, wherein each group of track units comprises two groups of steel rails, a track bed, two groups of track grooves, a plurality of groups of filling materials, a plurality of groups of air bags, a plurality of groups of rail lower backing plates and a plurality of groups of vibration isolation elements, the two groups of track grooves are symmetrically formed at the top of the track bed, the two groups of steel rails are respectively arranged in the two groups of track grooves, and the plurality of groups of vibration isolation elements are arranged in gaps between the track bed and a bridge below the track bed and a tunnel foundation. According to the invention, the steel rail adjustment can be performed after filling materials are in place, so that the interference to the steel rail in an adjusted state during filling materials is avoided, the steel rail adjustment can be performed at any time, the method is convenient and quick, the problem that the traditional embedded track is difficult to adjust after the filling materials are solidified and molded is solved, the vertical adjustment of the steel rail can be performed through the height of the vibration isolation element of the floating ballast bed, and the transverse adjustment of the steel rail can be realized through changing the air pressure in the air bag.

Inventors

  • ZHOU YINGCHUN
  • SHAO BIN
  • DING DEYUN
  • LI GUIHUA
  • REN QI
  • LIN YUHONG

Assignees

  • 北京九州一轨环境科技股份有限公司
  • 九州一轨环境科技(广州)有限公司

Dates

Publication Date
20260512
Application Date
20231205
Priority Date
20231107

Claims (10)

  1. 1. A steel rail embedded floating track bed is characterized by comprising a plurality of groups of track units, each group of track units comprises two groups of steel rails (1), a track bed (2), two groups of track grooves (3), a plurality of groups of filling materials (4), a plurality of groups of air bags (5), a plurality of groups of track lower backing plates (6) and a plurality of groups of vibration isolation elements (7), the two groups of track grooves (3) are symmetrically formed at the top of the track bed (2), the two groups of steel rails (1) are respectively arranged in the two groups of track grooves (3), the plurality of groups of vibration isolation elements (7) are arranged in a gap (9) between the track bed (2) and a lower bridge and a tunneling foundation (8), the tops of the plurality of groups of vibration isolation elements (7) are connected with the track bed (2), the bottoms of the plurality of groups of vibration isolation elements (7) are connected with the bridge and the tunneling foundation (8) so that the track bed (2) forms the floating track bed, The utility model discloses a steel rail waist laminating machine, including rail groove (3), first sub-groove (31) of multiunit and multiunit second sub-groove (32) are formed with in rail groove (3), multiunit first sub-groove (31) and multiunit second sub-groove (32) are crisscross between first sub-groove (31) and multiunit second sub-groove (32), every group first sub-groove (31) and second sub-groove (32) are passed to detachable be provided with groove division board (33) between first sub-groove (31) and the adjacent second sub-groove (32), every group second sub-groove (32) are interior all to have installed by rail (1) separation and inflatable gasbag (5) for rail (1) are adjusted transverse position state by gasbag (5) of its both sides, every group second sub-groove (32) interior bottom all installs rail lower bolster (6), rail lower bolster (6) are located the below of rail (1), make its adjustment rail (1) vertical position state, every group first sub-groove (31) are interior all filled and are provided with filler material (4), just rail waist laminating material (1).
  2. 2. A steel rail embedded floating ballast bed as set forth in claim 1, wherein the air bag (5) is provided with a regulating valve to regulate the air pressure in the air bag (5) after being connected with an external air source.
  3. 3. A rail-embedded floating ballast bed as claimed in claim 1, wherein the filler material (4) is provided as an elastic material.
  4. 4. A steel rail embedded floating ballast bed as set forth in claim 3, wherein said filler material (4) is provided as an elastomeric prefabricated block.
  5. 5. A steel rail embedded floating ballast bed as set forth in claim 3, wherein the filler material (4) is formed by casting and curing a rubber or polyurethane material.
  6. 6. A steel rail embedded floating ballast bed as set forth in claim 1, wherein the width of the rail groove (3) is larger than the width of the steel rail (1), the depth of the rail groove (3) is smaller than the height of the steel rail (1), and the length of the rail groove (3) is matched with the length of the steel rail (1).
  7. 7. A rail-embedded floating ballast bed as claimed in claim 6, wherein the rail (1) is configured as an "I" rail or as a channel rail.
  8. 8. A rail-embedded floating ballast bed as claimed in claim 1, wherein the ballast bed (2) is provided in a reinforced concrete non-prestressed structure.
  9. 9. A rail embedded floating ballast bed as claimed in claim 1, wherein a ditch (10) is formed in the middle of the upper surface of the bridge/tunnel foundation (8), and the ditch (10) is located below the ballast bed (2).
  10. 10. A rail embedded floating ballast bed as claimed in any one of claims 1 to 9, wherein the ballast beds (2) in two adjacent sets of said track units have a gap therebetween, and the grooves (3) in two adjacent sets of said track units are connected to each other to form a continuous structure.

Description

Rail embedded floating ballast bed Technical Field The invention relates to the technical field of urban rail transit, in particular to a steel rail embedded floating ballast bed. Background The embedded rail is different from the way of fixing the rail on the upper surface of the ballast bed through a fastener, and is characterized in that the rail is embedded into a reserved groove of the ballast bed, and the rail is wrapped by installing a filling material in the reserved groove, and the embedded rail is divided into two types, namely a fastener and a fastener-free type, and the embedded rail is characterized in that the materials are filled around the rail, and the materials are mostly elastic. Rail embedded tracks are often used in low speed tramways. In order to reduce the use of track parts, simplify the construction process, improve the construction efficiency and the like, a type without fasteners is mostly used in China at present, and the track mainly maintains the normal geometric shape and position of the steel rail by filling materials around the steel rail. For example, in the invention patent with CN103352401B, an embedded rail is proposed, before placing the steel rail, the retainer needs to be adhered to two sides of the rail according to a certain requirement, after the steel rail is placed in the groove, the distance between the two rails is adjusted by a special tool, after the track distance is adjusted, the positioning block matched with the supporting frame is placed to fix the position of the steel rail, after the positioning block is adjusted in place, an adhesive is uniformly sprayed in the groove, after the adhesive meets the requirement, the stirred polymer noise reduction filler is poured into the gap in the groove, after the solidification of the pouring material is completed, the whole system is locked, and the construction is completed. The embedded track has the defects that 1, in order to excessively weaken the strength of a track bed, the track groove is not large, and the track groove is only slightly larger than the maximum width of a steel rail, so that the space reserved for filling materials after fine adjustment of the steel rail is small, the operation is difficult, 2, the casting of the filling materials is near the steel rail, the shape and position of the fine-adjusted steel rail are easily influenced in the process, and 3, once the shape and position errors of the steel rail are caused due to the reasons, the smoothness of the steel rail cannot meet the design requirement, the later adjustment is difficult, and the travelling comfort after operation and the service life of a train, a track and the like are directly influenced. Disclosure of Invention (One) solving the technical problems The invention provides a steel rail embedded floating ballast bed, which solves the problems in the prior art. (II) technical scheme The invention provides a steel rail embedded floating track bed which comprises a plurality of groups of track units, wherein each group of track units comprises two groups of steel rails, a track bed, two groups of track grooves, a plurality of groups of filling materials, a plurality of groups of air bags, a plurality of groups of rail lower backing plates and a plurality of groups of vibration isolation elements, the two groups of track grooves are symmetrically formed at the top of the track bed, the two groups of steel rails are respectively arranged in the two groups of track grooves, the plurality of groups of vibration isolation elements are arranged in gaps between the track bed and a bridge and a tunnel foundation below the track bed, the tops of the plurality of groups of vibration isolation elements are connected with the track bed, and the bottoms of the plurality of groups of vibration isolation elements are connected with the bridge and the tunnel foundation, so that the track bed forms the floating track bed. The rail groove is internally provided with a plurality of groups of first sub grooves and a plurality of groups of second sub grooves, the plurality of groups of first sub grooves and the plurality of groups of second sub grooves are distributed in a staggered way, each group of first sub grooves and adjacent second sub grooves are detachably provided with groove spacing plates, the steel rail passes through the first sub grooves and the second sub grooves, each group of second sub grooves is internally provided with air bags which are separated by the steel rail and can be inflated and deflated, the steel rail is enabled to be adjusted to be in a transverse position state by the air bags at two sides of the steel rail, each group of second sub grooves is internally provided with a rail lower base plate, the rail lower base plate is located below the steel rail, the rail lower base plate is enabled to be adjusted to be in a vertical position state of the steel rail, and each group of first sub grooves is filled with filling ma