随着铁路运输的发展,列车重量、行车速度和密度都不断增加,对轨道结构的性能和强度要求越来越高。路基是轨道的基础,它的技术质量的好坏,将直接影响线路质量。用土工布加固路基基床,能较均匀的传递列车荷载,使路基面的应力均匀分布。为验证土工布的作用和机床动应力的变化规律,我们于1981年底至1983年上半年分别在邯长线康城 With the development of railway transportation, the weight, speed and density of trains are continuously increasing, and the requirements on the performance and strength of the rail structure are getting higher and higher. Subgrade is the basis of the track, its technical quality is good or bad, will directly affect the line quality. Geotextiles used to reinforce the subgrade bed, the transmission of the train load can be more uniform so that the stress distribution of the subgrade surface. In order to verify the role of geotextiles and machine tool dynamic stress changes, we in the end of 1981 to first half of 1983, respectively,