高速铁路石灰改良路基填料试验研究

Experiment study of filling material on lime-improved loess for high-speed railway embankment

基于高速客运专线对路基变形的严格要求,路基填料改良已成为高速铁路不可回避的问题。结合郑西高速客运专线工程,通过大量土工试验和理论分析,研究了石灰改良黄土的击实特性、压缩特性、强度特性以及影响其工程力学特性的主要因素,为黄土地区高速客运专线路基填料的选择和应用,提供了参考依据。

The characteristic of improved soil is important for high-speed railway, because of the strict demand of the embankment soil for high-speed railway. In the Zheng-xi high-speed passenger special railway, a large number of soil test and theoretical analyses, compactness, compressibility, strength of improved-loss and major factors influencing the engineering mechanical properties are studied. This experiment could provide a references to choice and application of roadbed filling in high-speed passenger special railway in loess region.