The Role of Energy Absorbing Rubber Grid on Ballast Track Performance
The Role of Energy Absorbing Rubber Grid on Ballast Track Performance
批准号:
DP220102862
负责人:
Prof Buddhima Indraratna
金额:
$38.84万
依托单位国家:
澳大利亚
项目类别:
Discovery Projects
财政年份:
2022
资助国家:
澳大利亚
项目状态:
未结题
起止时间:
2022-07-04 至 2025-07-03
中文摘要
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英文摘要
Breakage and excessive displacement of ballast lead to instability and regular maintenance of railways. The project aims to study the fundamental mechanics of ballast aggregates interacting with the apertures of recycled-Rubber Energy Absorbing Grids (REAG). The role of REAG on enhanced track performance by damping the cyclic wheel loading and impact will be quantified via rigorous mathematical methods complementing a computer-based numerical model and validated by laboratory & field data. When placed within the rail substructure REAG will enable reduced ballast movement and breakage while attenuating noise/vibration. The research outputs will facilitate improved rail track design enabling enhanced longevity and reduced cost of maintenance.
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