岩土力学Issue(7)：1931-1936,6.
湛江组结构性黏土区域微观结构特性研究
Research on regional microstructure characteristics of structural clay of Zhanjiang formation
摘要
Abstract
Zhanjiang formation formed in early Pleistocene is widely distributed in Leizhou peninsula in China. The most typical gray clay of Zhanjiang formation is known as its strong structural performance and had produced a series of geotechnical engineering problems in actual engineering. According to the stratigraphic research, this typical gray clay of Zhanjiang formation has different sedimentary environments and compositions in different areas of Leizhou peninsula. Thus, the differences of geologic origin make the engineering properties of gray clay changing with the area. In the actual projects, it is difficult for engineers and researchers to master the engineering mechanics effect of gray clay due to its regional characteristics. Some tests by X-ray diffraction and scanning electron microscope (SEM) are carried out to study the microstructure characteristics of gray clay such as mineral composition and its content, and microstructure in different areas. The results show that there are differences of mineral composition and its content. Different proportions of mineral composition compose different microstructures of gray clay which have obviously regional characteristics. The revelations of micromechanism of gray clay which lead to its strong structural performance and the analysis of its regional characteristics make for cognition and use of this clay.关键词
湛江组/结构性黏土/强结构性/微观结构/区域性Key words
Zhanjiang formation/structural clay/strong structural performance/microstructure/regional characteristics分类
建筑与水利引用本文复制引用
..湛江组结构性黏土区域微观结构特性研究[J].岩土力学,2013,(7):1931-1936,6.基金项目
国家自然科学基金面上项目(No.41072240)；中国科学院岩土力学与工程国家重点实验室资助项目(No. Y110061Q02)；国家自然科学基金面上项目(No.41172286)。 （No.41072240）
