摘要
莫尔应力圆通常是利用作图的方法获得,进而求得岩土体的强度指标,但该方法易受人为影响,精度较低。通过MATLAB软件编制相应的计算程序求得岩土体的强度指标,该软件是基于最小二乘法原理,对最大主应力和最小主应力的线性回归方程进行求值,进而通过抗剪强度指标与最大主应力和最小主应力的关系反算求得c、φ值。通过相关文献数据,验证本文方法的准确性和可靠性,为岩土体抗剪强度指标值的计算提供了一条新的解决途径。
Mohr＇s circle is widely used in soil mechanics; it is generally finite precision and affected by human factors due to be obtained by mapping method. This paper can obtain shear strength index of triaxial test by using Matlab software compiled corresponding program. The procedure can calculate the value of c, φ through the relation between the hear strength index and principal stress by using the principle of least square method. The accuracy and reliability of this method are verified by the relevant literature data, which provides a new way to calculate the shear strength of soil.
出处
《广东水利水电》
2016年第12期18-21,共4页
Guangdong Water Resources and Hydropower
