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关于液限标准的几个问题
引用本文:周鸿逵. 关于液限标准的几个问题[J]. 岩土工程学报, 1992, 14(6): 74-80
作者姓名:周鸿逵
作者单位:安徽省淮委水利科学研究所 蚌埠;233000;
摘    要:本文论述了圆锥仪与碟式仪对液限测试的等效问题。阐明了采用平均等效下沉深度heqv具有明确的物理意义。本文根据第二次比较试验总结资料,对heqv的确定、液限对应的不排水强度以及数据整理方法等问题作了说明,同时也对该总结中的一些缺点作了改正。再次肯定了76g圆锥仪(30°锥角)下沉深度17mm对应的液限标准能够与ASTM碟式仪液限等效。

关 键 词:低液限  下沉深度  圆锥仪  测值  几个问题  土类  不排水强度  交叉现象  平均值  塑限  

Problems on the Criterion of Liquid Limit
Zhou Hongkui. Problems on the Criterion of Liquid Limit[J]. Chinese Journal of Geotechnical Engineering, 1992, 14(6): 74-80
Authors:Zhou Hongkui
Affiliation:Anhui Water Resources Research Institute
Abstract:Equivalence of the two kinds of liquid limit test method-Casagrande method and Cone method, is discussed, The concept of &;quot;average equivalent penetration&;quot; is clarified with definite physical significance. On the basis of the summary of the L. L. and P. L. comparative tests, some problems as the determination of the heqv1 the undrained strength of remould soils at L. L., and the application of some statistical methods, are explained. Some defects in the summary mentioned above are corrected. 76 g cone, (30 apex angle) 17mm penetration L. L. of the cone method is equivalent to the L. L. according to ASTM standard, is concluded and reconfirmed.
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