Ballast track sealing structure based on waterproof fatigue-resistant asphalt mixture

A technology of asphalt mixture and closed structure, applied in the direction of tracks, roads, ballast layers, etc., to protect the stability of the roadbed and improve the overall bearing capacity

Pending Publication Date: 2022-07-05
山东铁路投资控股集团有限公司 +2
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0006] The technical task of the present invention is to provide a ballasted track closure structure based on waterproof and fatigue-resistant asphalt mixture to

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  • Ballast track sealing structure based on waterproof fatigue-resistant asphalt mixture
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  • Ballast track sealing structure based on waterproof fatigue-resistant asphalt mixture

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[0046] The ballasted track closure structure based on the waterproof and fatigue-resistant asphalt mixture of the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0047] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", " The orientation or positional relationship indicated by "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description. It is not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first", "second", and "third" are used fo...

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Abstract

The invention discloses a ballast track closed structure based on a waterproof fatigue-resistant asphalt mixture, belongs to the technical field of railway engineering, and aims to solve the technical problem of how to improve the fatigue resistance, permanent deformation resistance and overall bearing capacity of the ballast track closed structure. An emulsified asphalt macadam sealing layer is laid on the upper portion of the roadbed, a waterproof fatigue-resistant dense-distribution asphalt mixture layer is laid on the upper portion of the emulsified asphalt macadam sealing layer, and a waterproof permanent-deformation-resistant dense-distribution asphalt macadam layer is laid on the upper portion of the waterproof fatigue-resistant dense-distribution asphalt mixture layer. A waterproof load transmission dense-graded asphalt mixture layer is laid on the waterproof permanent-deformation-resistant dense-graded asphalt macadam layer, the upper portion of the waterproof load transmission dense-graded asphalt mixture layer is covered with a railway ballast macadam layer, and a sleeper rail is laid on the upper portion of the railway ballast macadam layer.

Description

technical field [0001] The invention relates to the field of railway engineering, in particular to a ballasted track closed structure based on waterproof and fatigue-resistant asphalt mixture. Background technique [0002] Whether for new or existing ballast railroads, the offline infrastructure is required to have good performance such as waterproofing, vibration damping, durability and maintainability. In traditional ballasted track, the gravel ballast is directly laid on the surface of the flexible graded gravel bed, which is easy to make the ground water infiltrate and cause diseases such as dirt, hardening, and pulping of the ballast bed, which is not conducive to the stability of the subgrade structure under the line. influences. [0003] As a typical viscoelastic material, asphalt concrete is used as the base material under the rail of the full-section bearing layer, which is conducive to improving the dynamic behavior of the foundation structure, and has the advanta...

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Application Information

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IPC IPC(8): E01B1/00E01B2/00E01B19/00
CPCE01B1/001E01B2/00E01B19/00E01B2204/01
Inventor 张敏马士杰张铭胡宗文张晓萌秦振海韦金城王新平徐希忠陈婷婷吴文娟
Owner 山东铁路投资控股集团有限公司
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