重庆大学学报：自然科学版2012，Vol.35Issue(5)：97-102,6.
尾矿粗细颗粒分层结构体的力学特性分析
Analysis on mechanical characteristic of coarse and fine particles layered structure of tailings
摘要
Abstract
Indoor triaxial tests and direct shear tests are adopted to study the mechanical characteristic of coarse and fine particle layered structure of railings, including two- and three-layer structures, and the influence of the change of lay thickness is taken into account. Triaxial tests results show that hierarchical structure＇s cohesions, generally, are lower than those of fine and coarse particle tailings, and internal friction angles are between the fine and coarse particle tailings＇. For the two-layer structure, the specimen＇ s cohesion reduces and internal friction angle increases with the increase of coarse particle tailings＇ layer thickness. For the three-layer structure, when the coarse particle tailing is the interlayer, the specimen＇s cohesion reduces with the increase of interlayer thickness; while when the fine tailing is the interlayer, the specimen＇s internal friction angle decreases with the increase of interlayer thickness. Direct shear testsresults show that hierarchical structure＇s cohesions and internal friction angles are all lower than those of coarse and fine particle tailings.关键词
采矿工程尾矿/分层结构/试验测试/抗剪强度Key words
mining engineering tailings/hierarchical structure/experiment testing/shear strength分类
建筑与水利引用本文复制引用
张千贵,尹光志,周永昆,敬小非,蒋长宝..尾矿粗细颗粒分层结构体的力学特性分析[J].重庆大学学报：自然科学版,2012,35(5):97-102,6.基金项目
国家自然科学基金资助项目 （）
高等学校博士学科点专项科研基金博导类资助课题 （）
