摘要
基于三轴试验,在对南宁膨胀土土样进行多组试验的基础上,研究了在不同压实度、不同围压和不同饱和度条件下的非饱和膨胀土的强度与变形特性,提出了一种单对数-双曲型关系式预测非饱和膨胀土的粘聚力c值,试验结果证明了该关系式在一定范围内的适用性和可靠性。
Based on the dynamic tri-axial experiments and series trials about the Nanning expansive soilst,he strength and deformation characteristic of unsaturated expansive soils are analyzed under the conditions of different compactnessd,ifferent confining pressures and different saturations.And a mathematical relationship of single log-hyperbolic equation 1/Sr-lg c is derived to predict the cohesive force c of unsaturated expansive soils.The experiments prove the applicability and effectiveness of this mathematical relationship under definite range.
出处
《湖南工业大学学报》
2007年第6期19-22,共4页
Journal of Hunan University of Technology
基金
国家自然科学基金资助项目(50378097)
湖南省科技厅基金资助项目(2007FJ3077)
关键词
膨胀土
三轴实验
压实度
围压
饱和度
expansive soils
tri-axial test
compactness
confining pressure
saturation
