中国铁道科学2011，Vol.32Issue(1)：141-144,4.
75kg·m-1钢轨用轨撑设计与铺装试验
Design and Track Laying Test of the Rail Braces for 75 kg·m-1 Rails
摘要
Abstract
In order to tackle the problems on small radius curves and long sharp slopes of heavy haul railways, such as the inconsistent track gauge and the linetype, serious side wear of the outer rail and massive maintenance work, two forms of rail braces for 75 kg · m-1 rails were designed, including ordinary type and vibration reduction type. The dynamic performance tests of track and the in-situ rail laying tests were carried out on Da-Qin Railway. Results show that compared with the existing Ⅱ-type elastic fastening, the two kinds of rail braces that apply to 75 kg · m-1 rails can strengthen the lateral rigidities of rail heads on the testing sections greatly. The lateral rigidities of the outer rail heads can be increased by 40％～54％and the lateral rigidities of the inner rail heads can be increased by 9％～113％. The rail braces that apply to 75 kg · m-1 rails can not only strengthen lateral resistance and stability against overturning of the rails to improve safety, but also can assist rails by keeping sound track gauge and reducing rail lateral displacements and wearing to reduce maintenance work. Besides, the rail braces with the properties of vibration reduction work better than the ordinary ones.关键词
重载铁路/小半径曲线轨撑/轨道强化/轨道动力特性/现场试铺分类
交通工程引用本文复制引用
马莉,宣言,王澜,张建峰,李春华..75kg·m-1钢轨用轨撑设计与铺装试验[J].中国铁道科学,2011,32(1):141-144,4.基金项目
铁道部科技研究开发计划项目(2008G007) （2008G007）
