道路压实冰雪微观接触特性及组成性能实验分析研究

Experimental study on micro-contact characteristics and composition performance of compacted ice-snow on roads

以北方冬季道路压实冰雪为研究对象,基于固体接触理论建立道路冰雪与路面间的接触分析模型;基于Hertz接触理论建立了冰雪颗粒与路面、冰雪颗粒间的接触分析模型,利用数字显微设备采集了多样本道路压实冰雪微观图像;根据灰度理论,对图像进行了灰度处理及分析,进而获得了多样本的道路压实冰雪各组分的特征。本文的研究内容可为冬季道路清除冰雪工程及清除设备设计提供基础理论指导。

This paper took the compacted ice-snow of northern roads in winter as the research object,and established the contact analysis model between compacted ice-snow on road and pavement based on solid contact theory.And established the contact analysis model between ice particles and snow particles,pavement and ice-snow particles based on Hertz contact theory.Digital microscopic equipment has been used to collect multi-sample microscopic images of compacted snow-ice on roads.According to the gray theory,image gray level has been processed and analyzed,and then obtained the characteristics of various components of multi-sample compacted ice-snow on road.The research contents of this paper can provide basic theoretical guidance for ice-snow removal works and design of road ice-snow cleaning equipment in winter.