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在很多干线的提速改造中,路基加固已成为改造工程的关键项目。本文通过对津浦线软土提速路基几处病害段的现场试验研究,分析路基病害产生的原因,并提出了相应的提速路基的加固方法。对我国目前既有线铁路提速路基改造具有一定参考价值。
Subgrade reinforcement has become a key project for retrofitting projects in speeding transformation of many main lines. In this paper, field tests on several disease sections of speed-raised subgrade of Jinpu soft soil are carried out to analyze the causes of the subgrade defects and the corresponding reinforcement methods of speed-up subgrade are proposed. It is of certain reference value for the reconstruction of speed-improving subgrade in existing railway in our country.