铁道科学与工程学报Issue(5)：1047-1051,5.
非饱和地基土蠕变特性试验研究
Experimental study on the creep characteristics of unsaturated foundation soil
摘要
Abstract
The creep tests were conducted by using the unsaturated soil consolidation apparatus in the considera-tion of matric suction and initial water content for the unsaturated foundation soil in Feidong area of Hefei region. The results show that the curve between deformation and time can be divided into two stages under the control of matric suction,and the matric suction has certain hardening effect for unsaturated soil.For the studied soil,the increase of water content may leads to the spring back deformation and compression deformation,and the spring back deformation is greater than the compression deformation.The creep degeneration characteristic of unsaturat-ed soil in the study area is small,and the 24 h isochron can be approximately expressed in three straight segment with different initial water content and vertical stress.关键词
非饱和土/地基/蠕变/基质吸力/初始含水率Key words
unsaturated soil/foundation/creep/matric suction/initial water content分类
建筑与水利引用本文复制引用
李晓宁,冯君,巫锡勇,朱宝龙..非饱和地基土蠕变特性试验研究[J].铁道科学与工程学报,2015,(5):1047-1051,5.基金项目
国家自然科学基金资助项目（51348003）；四川省科技支撑计划项目 （）
