利用各种天然或人造材料覆盖层进行保温隔热的方法,已先后在我国公路和铁路工程中被采用。本文根据笔者对青藏高原风火山地区路基试验工程中,路堑边坡上铺设的活草皮、当地细颗粒土层、加气混凝土、酚醛树脂矿棉板和沥青膨胀珍珠岩等五种保温材料使用效果的调查资料,作一初步分析。 The use of a variety of natural or man-made material cover insulation method has been in our country road and railway projects have been adopted. In this paper, according to the author on the Qinghai-Tibet Plateau Fenghuoshan subgrade test project, the laying of cutting slope live grass, the local fine soil layer, aerated concrete, phenolic resin mineral wool board and bitumen perlite five kinds of insulation materials, such as the use of effect Survey data for a preliminary analysis.