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Assessment and Prediction of Particle Breakage under Cyclic Loading

Assessment and Prediction of Particle Breakage under Cyclic Loading
循环加载下颗粒破碎的评估和预测
批准号:
DP0664199
负责人:
Prof Buddhima Indraratna
金额:
$12.46万
依托单位:
依托单位国家:
澳大利亚
项目类别:
Discovery Projects
财政年份:
2006
资助国家:
澳大利亚
项目状态:
已结题
起止时间:
2006-01-01 至 2008-12-31

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中文摘要
翻译
每年,运输行业花费数百万美元来维护现有轨道,这些轨道由于交通繁忙而遭受过度沉降。在铁路中,不均匀沉降和轨道污垢主要是由于道碴破碎。频繁的维护需要大量的采石道碴,导致环境恶化。 循环荷载下颗粒破碎的模拟是一项开创性的基础研究,将对未来铁路和公路网的设计和维护产生重大影响。对骨料破碎机制的充分理解将导致设计和施工中的创新技术,包括更快的列车承载更重的负载,降低维护成本。
英文摘要
Every year, transport industries spend millions of dollars to maintain existing tracks suffering excessive settlement due to heavy traffic. In railways, differential settlement and track fouling are mostly due to ballast breakage. Frequent maintenance requires large amounts of quarried ballast causing environmental degradation. Simulation of particle breakage subject to cyclic loading is pioneering fundamental research that will have significant impact on the design and maintenance of future rail and road networks. A full understanding of the breakage mechanisms of aggregates will lead to innovative techniques in design and construction, including faster trains carrying heavier loads with reduced maintenance costs.
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