黄土压实的影响因素研究  

Influencing Factors of Loess Compacting

作　　者：刘小伟[1] 谌文武[1] 梁收运[1] 韩文峰[1] 

机构地区：[1]兰州大学资源环境学院,甘肃兰州730000

出　　处：《中国沙漠》2004年第5期657-661,共5页Journal of Desert Research

基　　金：西部交通建设科技项目'黄土路基压实技术'(2001-318-000-18)资助

摘　　要：黄土在我国广泛分布,黄土路基沉陷变形是黄土地区公路的主要病害之一。解决路基沉陷变形的核心是提高路基土的压实密度。通过常规土工试验、标准重型击实试验、显微电镜,从宏观到微观,定性定量分析了影响黄土压实的因素。指出黄土的粒度成分、显微结构、含水率、击实功率是影响黄土压实的主要因素。Loess widely distributes in China and the subsidence deformation of loess roadbed is one of the common highway disasters in loess areas. Improving the compacting density is the key to solve this question. From macroscale and microscale, the factors that influence compacting are analyzed qualitatively and quantitatively. It is concluded that granulometric composition, microstructure, specific moisture content, compacting power efficiency are the main factors influencing loess compacting.

关 键 词：黄土 路基沉陷变形 公路病害 显微结构 

分 类 号：P642.131[天文地球—工程地质学] U416.16[天文地球—地质矿产勘探]