水资源与水工程学报2017，Vol.28Issue(3)：186-192,7.DOI:10.11705/j.issn.1672-643X.2017.03.34
玄武岩纤维和纳米二氧化硅加筋上海黏土的抗剪强度试验研究
Shear strength experimental study on basalt fiber andnano slilca reinforced Shanghai clay
摘要
Abstract
For a more comprehensive study on the shear strength characteristic of basalt fiber and nano silica reinforced clay,the basalt fiber and nano silica were used as reinforcement materials to be incorporated into Shanghai clay in single or mixed form.The direct shear test was carried out to study the influence of the two materials on the shear strength of Shanghai clay by changing the reinforcement ratio of the two materials.The result shows that: the basalt fiber can effectively improve the shear strength of Shanghai clay , when the reinforcement ratio is 0.5%, the reinforcing performance is the most efficient;the addition of nano silica to Shanghai clay also increases the shear strength, and 1.0% is the best reinforced ratio;the shear strength of fiber-nano silica reinforced clay rise significantly under severe conditions (reinforcement ratio), the combined effect of the 0.5% basalt fiber(by weight) and 1.0% nano-silica(by weight) is the most effective;mixing basalt fiber with nano silica can obviously enlarge clay's cohesion, however the angle of internal friction was slightly influenced.关键词
玄武岩纤维/纳米二氧化硅/加筋黏性土/抗剪强度Key words
basalt fiber/nano-silica/reinforced clay/shear strength分类
建筑与水利引用本文复制引用
璩继立,胡晨凯,赵超男..玄武岩纤维和纳米二氧化硅加筋上海黏土的抗剪强度试验研究[J].水资源与水工程学报,2017,28(3):186-192,7.基金项目
诺华上海实验室科研项目(3A-11-307-110) （3A-11-307-110）
