摘要
液塑限试验是土工试验的重要项目之一，塑限试验一般用手工操作、人为因素大、效率低，但局部地区塑限与液限却有如ωＰ＝ ａ ＋ ｂωＬ 的近似线性相关公式。这样用液限就可直接计算塑限，是简捷快速、提高效率的较好方法。本文就郑州市区西部的８ 个工程１６６ 组土样用数理统计的最小二乘法计算出了塑限与液限的相关公式。
The test of liquid and plastic limit is a important item for geotechnical one.Generally,the test of plastic limits is used in operating by hand.This method has more artificial factors and lower efficiency.In some areas,the liquid limit and plastic limit has approximate lineal relevant formula, expressed formula as like this ω P=a+bω L.It is a forthright and high efficient method,to calculate directly the plastic limit from liquid limit with this formula.In this paper,the relevant formula of the liquid and plastic limits has been calculated in least square method of mathematical statistics from 166 groups soil sample of 8 construction sites in part west urban area in Zhengzhou city proper.
出处
《河南地质》
1999年第4期294-296,共3页
Henan Geology
关键词
土工试验
液限
塑限
线性相关公式
最小二乘法
geotechnical test
liquid limit
plastic limit
lineal relevant formula
least square method
