| 非饱和红粘土三轴试验研究 |
| |
| 引用本文： | 谈云志.非饱和红粘土三轴试验研究[J].合肥工业大学学报(自然科学版),2009,32(5). |
| |
| 作者姓名： | 谈云志 |
| |
| 作者单位： | 中国科学院武汉岩土力学研究所,岩土力学与工程国家重点实验室,湖北,武汉,430071 |
| |
| 基金项目： | 西部交通科技资助项目 |
| |
| 摘 要： | 利用非饱和三轴系统进行不同围压和不同基质吸力的三轴剪切试验,求出了该典型红粘土的强度指标,并分析强度指标随基质吸力变化的规律;结果表明,强度指标在进气值前后差异很大,且基质吸力大于进气值后出现了非线性变化的趋势,其中表观凝聚力最为突出;最后,验证了用幂函数拟合表观凝聚力与基质吸力的关系是行之有效的.
|
| 关 键 词： | 非饱和土 基质吸力 进气值 表观凝聚力 红粘土 |
Study on the triaxial tests of unsaturated lateritic soil |
| |
| TAN Yun-zhi.Study on the triaxial tests of unsaturated lateritic soil[J].Journal of Hefei University of Technology(Natural Science),2009,32(5). |
| |
| Authors: | TAN Yun-zhi |
| |
| Institution: | State Key Laboratory of Geomechanics and Geotechnical Engineering;Wuhan Institute of Rock and Soil Mechanics;Chinese Academy of Sciences;Wuhan 430071;China |
| |
| Abstract: | Using the unsaturated triaxial apparatus,the unsaturated traxial tests were carried out under different confining pressures and different suction.The strength indexes were obtained,and the law of strength index changing with suction was analyzed.The results show that the strength indexes were dramatically different around the air-entry pressure.Moreover the strength indexes show a nonlinear trend as the suction exceeded the air-entry pressure,and the apparent cohesion was most notable.At last,it is validate... |
| |
| Keywords: | unsaturated soil matric suction air-entry pressure apparent cohesion lateritic soil |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
