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首页> 外文期刊>Journal of Cold Regions Engineering >Effect of Freeze-Thaw Cycles on the Strength of Base Course Materials Used under China's High-Speed Railway Line
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Effect of Freeze-Thaw Cycles on the Strength of Base Course Materials Used under China's High-Speed Railway Line

机译：冻融循环对中国高速铁路下基层材料强度的影响

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摘要

Mechanical property variations of base course materials caused by freezing and thawing must be considered when designing subgrades in regions with seasonal freezing and thawing. In this study, static triaxial tests were performed to investigate the properties of reconstructed base course materials with optimum water contents subjected to freeze-thaw cycles; reconstructed base course materials are extensively used for China's high-speed railway. The material strength significantly decreased with increasing freeze-thaw cycles, particularly during the first cycle. The results show that the minimum strength was frequently achieved after the specimen had been exposed to six freeze-thaw cycles. (C) 2017 American Society of Civil Engineers.
机译：在季节性冻融地区设计路基时，必须考虑由冻融引起的基础材料的机械性能变化。在这项研究中，进行了静态三轴试验，以研究经过冻融循环后具有最佳含水量的再生基层材料的性能。重建的基础课程材料被广泛用于中国的高速铁路。随着冻融循环次数的增加，材料强度显着下降，尤其是在第一个循环过程中。结果表明，在将样品暴露于六个冻融循环后，经常会达到最低强度。 （C）2017年美国土木工程师学会。

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