桂林理工大学学报2017，Vol.37Issue(3)：451-455,5.DOI:10.3969/j.issn.1674-9057.2017.03.009
渗透吸力对饱和黏土变形-强度特性的影响
Effect of osmotic suction on strength characteristics of saturated clay
摘要
Abstract
The change in the composition or concentration of the pore solution will have an important effect on the strength characteristics of the soil.To solve this problem,triaxial consolidation drainage shear test is done on saturated clays with pore solution of different concentration of NaCl.The test results show that the osmotic suction has obvious effect on the deformation-strength characteristics of clay.Under the same confining pressure,the modulus and strength value of saturated clay are not monotonically decreasing with the increase of osmotic suction.Salt solution can change the clay pore status and structure,thus affecting the process of shearing deformation,soil strength and failure time during the shear process.The strength of the soil particles is also related to soil structure.关键词
饱和黏土/盐溶液/渗透吸力/强度Key words
saturated clay/salt solution/osmotic attraction/strength分类
建筑与水利引用本文复制引用
赵续月,颜荣涛,梁维云,李杨,陈波,曾腾..渗透吸力对饱和黏土变形-强度特性的影响[J].桂林理工大学学报,2017,37(3):451-455,5.基金项目
国家自然科学基金项目(11562007 （）
11372078 （）
51309055) （）
国家大学生创新创业计划项目(201610596031) （201610596031）
