岩土力学Issue(z2)：204-209,6.
非饱和红黏土的强度特性研究
Research on strength characteristics of unsaturated red clay
摘要
Abstract
Red clay is one of the special soils which contains cementing material. Compared with common cohesive soils, the strength characteristics of red clay are more complicated. Some direct shear tests are performed on the unsaturated red clay samples with water and propanetriol solution; and the experimental results show that the strength and cohesion of samples exhibit double peaks of strength increasing with the increase of solution content; while the internal friction angle does not change. Besides, the strength of samples diminishes obviously with the propanetriol solution instead of water. Based on Bishop's effective stress for unsaturated soil and the characteristic of pore distribution acquired by NMR tests, the impact mechanism of pore distribution characteristic on strength is discucsed, and a conclusion is drawn that pore distribution characteristic has much effect on strength of red clay samples.关键词
红黏土/抗剪强度/非饱和度Key words
red clay/shear strength/unsaturation分类
建筑与水利引用本文复制引用
傅鑫晖,韦昌富,颜荣涛,张芹,赖友华..非饱和红黏土的强度特性研究[J].岩土力学,2013,(z2):204-209,6.基金项目
广西自然科学基金重大项目（No.2011 GXNSFE018004）；广西自然科学基金创新团队项目（No.2012GXNSFGA060001）；广西自然科学基金重大项目（No.2012GXNSFEA053002）。 （）
