岩土工程学报2011，Vol.33Issue(6)：928-933,6.
滤纸法测定南阳中膨胀土土水特征曲线试验研究
Measurement of SWCC of Nanyang expansive soil using the filter paper method
摘要
Abstract
The basic principle, approach and precautions for measuring both the matric and the total suction of unsaturated soils using the filter paper method are introduced.By means of sodium chloride solutions, the total suction calibration curve of the domestic filter paper, named as "Double-Circle" No.203, is established and a bi-line regression equation is proposed.As an application, the identical compacted samples of Nanyang expansive soil are tested under different water contents using the filter paper method, and the relationships among the total suction, matric suction, osmotic suction and water content of the expansive soil are established.Furthermore, the SWCC of the expansive soil, with the water content ranging from 16％ to 30％, is obtained.关键词
滤纸法/基质吸力/总吸力/率定曲线/膨胀土/土水特征曲线Key words
filter paper method/ matric suction/ total suction/ calibration curve/ expansive soil/ SWCC分类
建筑与水利引用本文复制引用
白福青,刘斯宏,袁骄..滤纸法测定南阳中膨胀土土水特征曲线试验研究[J].岩土工程学报,2011,33(6):928-933,6.基金项目
国家十一五科技支撑计划课题(2006BAB04A10) （2006BAB04A10）
