摘要
重点介绍了工程粘性土微观结构研究方面的一些新技术、新成果和新发展，主要包括供扫描电镜（ＳＥＭ）分析用的处理高含水量土样的冷冻刀切干燥法、定量评粘性土微观结构的图象处理技术、测定粘性土粒间胶结物化学成分的ＥＤＸ技术和无损伤探测土体内部结构的ＣＴ技术．
Microstructure of clayey soil is an important factor determining engineering properties of the clayey soil. Several latest techniques for analyzing microstructures of engineering clayey soil are presented, including the freeze-cut- drying method for preparing a soil specimen of high moisture content for analysis with scanning electronic microscopy (SEM), image processing technique for quantifying the microstructure of the soil, the application of the energy dissipate X-ray technique (EDX) in determining the interparticle chemical compositions, and the CT technique in monitoring the development of internal failure in soil under loading. These techniques provide a series of effective tools to analyze systematically the microstructure and internal failure evolution of engineering clayey soil.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2001年第6期864-870,共7页
Chinese Journal of Rock Mechanics and Engineering
基金
国家自然科学基金资助项目(4880139.49402038
49872088).
关键词
粘性土
微观结构
冷冻刀切法
图象处理
clayey soil, soil microstructure, freeze-cut drying method, image process technique, EDX, CT technique
