为了正确权衡轨道结构设计中遇到的工程参数,需要正确理解影响轨道结构应力分布的各种因素。如果轨道结构和其关键部件——钢轨、轨枕、道床和路基——的敏感性被正确确定和理解,就能够确定出加强轨道结构最有效的方法。 近年来,对轨道结构工作状态已进行了许多理论的、解析的和实验的研究。在这些研究过程中,对轨道结构工作状态建立了理论基 In order to correctly weigh the engineering parameters encountered in the design of orbital structures, various factors that affect the stress distribution in orbital structures need to be properly understood. If the sensitivity of the orbital structure and its key components - rails, sleepers, ballast beds and roadbeds - is correctly identified and understood, the most efficient way to strengthen the orbital structure can be identified. In recent years, many theoretical, analytical and experimental studies have been carried out on the working status of orbital structures. In these studies, a theoretical basis was established for the working status of the orbital structure