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重载、高速、大运量是铁路现代化的重要标志,其中任何一方面的增加,都必然要增大路基的动、静载。在新的条件下,土路基会不会出现影响行车安全的永久变形(甚至破坏)这是铁路部门应加重视并深入研究的重要课题。现译述美国《铁路轨道与建筑物》1984年6月号有关资料,以资借鉴。原作者克利斯默是美国从事土工和轨道研究多年的工程师,他介绍并评论英国铁路提出的一项鉴定土路基忍受重载列车能力的土工试验指标的方法。克利斯默工程师说:客观要求铁路提高线路荷载能力,测定路基土质的方法,已引起铁
Heavy load, high speed, large capacity is an important symbol of railway modernization, any increase in which are bound to increase the roadbed dynamic and static load. Under the new conditions, there will be no permanent deformation (or even damage) of the roadbed that will affect traffic safety. This is an important issue that railway departments should pay more attention to and study further. We are now translating the relevant information on the “Railroad Track and Buildings” issued by the United States in June 1984 and drawing lessons from it. For many years Kerr Smermer, an engineer with geotechnical and orbital studies in the United States, introduced and commented on the British Railroad’s method of identifying geotechnical test indicators of soil subgrade resistance to heavy-haul trains. Krismer engineer said: The objective requirements of the railway line load capacity, determination of subgrade soil method has caused iron