成都东站扩建工程石灰土基床的现场试验

FIELD MEASUREMENS ON SUBGRADE OF LIMESOIL IN EXTENSION PROJECT OF CHENGDU EAST RAILWAY STATION

介绍了成都东站扩建工程的概况，成都粘土对工程结构物（路基）的危害，分析了石灰与土的反应机理。在文献〔１〕试验研究的基础上，对成都东站扩建工程石灰土基床进行了系统的现场试验，分析了不同含灰率的石灰土基床在强度等方面的性质变化规律。试验研究资料表明，含灰率为１０％的成都粘土石灰土基床优于含灰率为１６％的成都粘土石灰土基床。

This paper simply introduces the extension project of Chengdu East Railway Station, the harm of Chengdu clay on constructions (such as subgrade), and the reaction between lime and soil. On the basis of the experimental study of reference(1), systematic field measurements are made upon the subgrade of the limesoil in the extension project of Chengdu East Railway Station, and the resulting regular patterns between lime content and physicalmechanical properties are analyzed . The data indicate that the lime content of ten percent is better than sixteen percent for the subgrade of the limesoil of Chengdu clay.