阿太堡极限
岩土工程
土壤水分
可塑性
剪切(地质)
抗剪强度(土壤)
材料科学
极限(数学)
含水量
数学
地质学
土壤科学
复合材料
数学分析
作者
Binu Sharma,Padma K. Bora
出处
期刊:Journal of Geotechnical and Geoenvironmental Engineering
[American Society of Civil Engineers]
日期:2003-07-22
卷期号:129 (8): 774-777
被引量:145
标识
DOI:10.1061/(asce)1090-0241(2003)129:8(774)
摘要
The concept that plasticity index of soils can be defined as a range of water contents producing a 100-fold variation in undrained shear strength has been experimentally verified with the help of a large number of tests on soils of diverse nature. This has led to the redefinition of the plastic limit as the water content at which undrained shear strength is around 170 kN/m2. Undrained shear strength of a soil at the liquid limit can be considered to be around 1.7 kN/m2. Accordingly, both the liquid limit and the plastic limit have been determined in the present work by a single consistent method, i.e., the Swedish fall cone method. The undrained shear strength-water content relationship has been found to be log-linear for a wide range of water contents beginning from lower than the plastic limit to higher than the liquid limit. This resulted in the formulation of an expression for predicting undrained shear strength of a remolded soil at any water content based solely on its liquid limit and plastic limit.
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