Ballast plays a vital role in transmitting and distributing train wheel loads to the underlying sub-ballast and subgrade. Bearing capacity of track, train speed, riding quality and passenger comfort all depend on the stability of ballast through mechanical interlocking of particles. Ballast attrition and breakage occur progressively under heavy cyc
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格式 PDF ● 网页 432 ● ISBN 9780203815779 ● 出版者 CRC Press ● 发布时间 2011 ● 下载 3 时 ● 货币 EUR ● ID 4109727 ● 复制保护 Adobe DRM
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