液、塑限联合试验成果的数值分析方法

确定土的液限和塑限是土工试验的重要内容。根据液、塑限参数的相关性，采用最小二乘数法、解析法、逐次分半算法等数值计算方法可确定出液、塑限值，同时相关计算结果的置信度、精度分析比较表明，逐次分半算法和解析法精度较高．是工程应用中液塑限成果的方便、快捷、准确的计算方法。

Numerical Value Analysis Methods in Liquid-plastic Limit Combined Testing

Determining the liquid and plastic limits of cohesive soil is an important part in soil tests. According to the relativity of liquid and plastic limits, this paper discusses numerical value caleulational methods like the least square method, analytic method and successive substitutional method, which are used to determine liquid and plastic limit values. Comparing the confidence level and the accuracy of these methods, it indicates that successive substitutional method and analytic method, which have higher accuracy, are convenient, quicker and accurate.