同心至固原段高速公路沿线黄土的基本特性

Loess basic characteristic along Tongxin to Guyuan Highway

为了使广大同行对同心至固原段高速公路沿线的黄土有深刻的认识和了解,通过对该段公路进行勘测设计时所取得的试验结果分析,参考有关湿陷性黄土的研究成果,从黄土的地层、颗粒组成、物理性质、化学成分及矿物成分、易溶盐、压缩性、抗剪强度、湿陷性等方面探讨了沿线黄土的基本特性,为该段公路的黄土地基处理,路基、路面防排水设计和施工提供了科学依据.

In order to enable the general colleagues have a deeper understanding of loess along Tongxin to Guyuan Highway, through the test result analysis which was obtained during surveying and designing and the reference related on collapsible loess research results, this article introduced the basic characteristic through loess layer, composition, physical property, chemical composition, mineral ingredient, soluble salt, compression, shear strength, collapsibility and so on. It also provides scientific evidence for loess foundation disposing and drainage-waterproofing design of subgrade-pavement on the highway.