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分析了无缝线路发生胀轨跑道与断轨的原因，利用形状记忆合金材料的特殊性能，提出了自适应无缝线路的结构方案，阐述了该线路的可行性和优越性，并对此进行了有限元分析。
The reason of running track and rail rupture occurred on seamless line was analyzed. By using the special properties of shape memory alloy material, the structure scheme of adaptive seamless line was put forward, and the feasibility and superiority of the line were expounded. This is a finite element analysis.