论砂土的下限  

On the Lower Limit of Sand

作　　者：熊兴邦[1] 高大钊[2] 

机构地区：[1]中国建筑科学研究院地基基础研究所 [2]同济大学

出　　处：《工程勘察》1989年第2期11-15,共5页Geotechnical Investigation & Surveying

摘　　要：本文着重讨论了砂土下限的两个建议:大于75μm的粒组超过50%和粘粒含量M_C=5%;指出在的工程分类中,粘粒含量不宜作为大类的界限,并认为砂土下限应采用75μm的方案。Two proposals for the lower limit of sand (1) the quantity of grains bigger than 75μm is over 50% (2) the content of cohesive grains M_c=5% and their advantage and disadvantage are studied in this article. It is pointed out that in engineering classification of soil the content of cohesive grains should not be used as the limit of soil and the plan of 75μm should be abopted for the lower limit of sand.

关 键 词：砂土 分类界限 粒度 下限 

分 类 号：TU441[建筑科学—岩土工程]