高速铁路无砟轨道挡肩及承轨槽伤损维修技术
Railway Engineering(2018)
Abstract
对高速铁路无砟轨道挡肩及承轨槽伤损情况进行了调研,将挡肩及承轨槽伤损分为承轨部位整体破损、挡肩缺损掉块、挡肩和承轨槽裂缝等类型.伤损影响因素包括环境条件、初始缺陷、磕碰撞击等.基于对不同类型伤损原因的分析,提出挡肩及承轨槽伤损判定标准和维修方法.挡肩缺损面积达到50%及以上时判定挡肩整体失效,建议对挡肩进行整体修复;当挡肩缺损面积达到30%时建议及时修复;当挡肩缺损面积不超过30%时建议列入维修计划适时修复.
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