低强度多孔玄武岩铁路路基填料可行性研究

针对浙江嵊县组气孔玄武岩抗压强度低，差异较大，经现场填筑试验表明不能直接用作铁路路基填料的问题，结合填筑试验结果和本地区多孔玄武岩特性进行分析研究，设计低强度多孔玄武岩用作铁路路基填料的改良方案。研究出一套广泛适用的路基填料改良效果评价体系，指导路基填料改良实施与评价。

Feasibility Study on Low Strength Porous Basalt Used as Filler for Railway Subgrade

Aimming at the problem that the stomata basalt in the Shengxian Formation of Zhejiang province has low compressive strength and great intensity difference and the field filling test shows that it cannot be directly used as the railway subgrade filler, it is analyized and studied combined with the filling test results and the characteristics of porous basalt in this area. An improved plan for using low-strength porous basalt as filler for railway subgrade is designed. A set of widely applicable subgrade filler improvement effect evaluation system is proposed in this study to guide the implementation and evaluation of subgrade filler improvement.