摘要
本文对铁路道碴质量等级的影响因素进行了分析 ,就现存的道碴用材上的岩性局限性 ,从岩石学的角度 ,给出了三大类岩石中能够成为一级道碴和不能够达到一级道碴的岩石种类的名称以及主要优质岩石在我国的分布 。
The paper puts forward an analysis on the influence factors for evaluating the quality grade of railway ballast,From the viewpoint of petrology,concerned with the limitation of rock properties of existing ballast materials,the names of three main kinds of rocks which may be classified as Ⅰ grade ballast or not are pointed out,as well as the names of the high quality rocks distributed in China are proposed.Several steps and several suggestions are also proposed for engineering technicians concerned with how to select the superior quality ballast and enlarging the selection scope of rock materials.
出处
《铁道工程学报》
EI
1999年第4期114-122,共9页
Journal of Railway Engineering Society
关键词
铁路
道碴
选材
岩石学
质量等级
railway ballast
selection of materials
petrology
