中南大学学报（自然科学版）2011，Vol.42Issue(5)：1432-1436,5.
PS对非饱和重塑黏土的土-水特征曲线的影响
Effect of PS on soil-water characteristic curve of remolded unsaturated clay
摘要
Abstract
SEM was employed to analyze the micropore structure of remolded samples which were reinforced by PS or not.The effects of clay mineral, pore structure and shrinkage on the soil-water characteristic curve (SWCC) of remolded unsaturated clay after consolidating by PS were analyzed.The results show that PS can improve the mechanical property through binding separate earthen relics particle together, and a series of physical and chemical reactions between PS and particle surface also improve the clay behaviors of the remolded unsaturated clay, such as pore structure, psephicity and shrinkage, which lead to the change of SWCC of the unsaturated clay.The results also suggest that the characters of the samples including saturated water content, residual water content, air entry value and the slope of the SWCC are changed after consolidating by PS, the saturated water content and residual water content are lower while the air entry value and the slope of the SWCC become higher than that without PS.Van Genuchten model (i.e., VG model) fits the experimental data well.The conclusion proves the good performance of PS consolidation for earthen sites well.关键词
PS/土-水特征曲线/黏土矿物/孔隙结构/VG模型分类
建筑与水利引用本文复制引用
邵明申,李最雄..PS对非饱和重塑黏土的土-水特征曲线的影响[J].中南大学学报（自然科学版）,2011,42(5):1432-1436,5.基金项目
国家科技支撑计划项(2006BAK30B02) （2006BAK30B02）
