直接剪切试验结果线性拟合方法的多样性  

Diversity of linear fitting methods for direct shear test results

作　　者：罗杰[1] LUO Jie(Hebei Institute of Investigation&Design of Water Conservancy&Hydropower Group Limited,Tianjin 300250,China)

机构地区：[1]河北省水利水电勘测设计研究院集团有限公司,天津300250

出　　处：《水科学与工程技术》2024年第4期90-92,共3页Water Sciences and Engineering Technology

摘　　要：在土样直接剪切试验结果处理中,可采用不同的线性拟合方法处理其检测数据。直接剪切试验中C和φ值的确定,最常用的线性关系拟合方法为最小二乘法。与此同时,还有一种线性拟合方法通过计算可得到较准确的试验结果,这种线性拟合方法为高斯牛顿法。以实际的工程项目数据为依据,通过计算验证线性拟合方法的可靠性。In the processing of direct shear test results,we can use different linear fitting methods to process their detection data.The most commonly used linear relationship fitting method for determining C&φvalues in direct shear test is the least squares method.At the same time,there is another linear fitting method that can also provide us with more accurate experimental results through calculation,which is the Gaussian Newton method.This article is based on actual engineering project data and verifies the reliability of the linear fitting method through calculation.

关 键 词：直接剪切试验 C和φ值 最小二乘法 高斯牛顿法 

分 类 号：TU411[建筑科学—岩土工程]