高液限红层填料填筑铁路路基可行性研究

Feasibility Study on the Filling Railway Subgrade with High Liquid Limit Red Bed Stuffing

结合玉溪至磨憨铁路某一红层软岩区段案例,分析使用高液限红层D组填料路基填筑的方案及处理方法,论证高液限红层D组填料在车站大面积填筑的可行性;开展填筑压实试验,检验填料处理方法的合理性。研究表明:设计采用翻挖晾晒、增设隔水层等措施填筑高液限红层填料具有显著的合理性和可行性,可为红层地区大型车站的填料设计提供重要的参考,同时也为红层地区的普速铁路基床底层或高速铁路路堤本体使用高液限红层填料的可能性提供技术支撑。

Combined with a case of a red-layered soft rock section of the Yuxi—Mohan Railway,it analyzes the scheme and processing method of using high liquid limit red layer Group D filler for roadbed filling,demonstrates the feasibility of high liquid limit red layer Group D filler in a large area of the station,and carries out a filling compaction test to test the rationality of the filler processing method.The research shows that the design of filling with high liquid limit red layer fill using measures such as excavation and drying,additional water barrier is significantly reasonable and feasible,which can provide an important reference for the design of fill in large stations in red layer areas,and also provide technical support for the possibility of using high liquid limit red layer fill in the subgrade of general railway or the embankment body of high speed railway in red layer areas.