土体强度对T-bar系数修正影响的研究

Study on influence of soil strength on modification of T-bar coefficient

本文基于CEL大变形计算方法,计算了4种土体不排水抗剪强度条件下T-bar贯入过程,根据得到的T-bar系数随贯入深度的分布特点,提出了T-bar修正系数表达式中参数的拟合表达式,进而给出根据T-bar测试数据迭代计算软土不排水抗剪强度的方法。该研究结果可为其他类似工程提供借鉴。

Based on CEL large deformation calculation method,the penetration process of T-bar in four kinds of soil under the condition of undrained shear strength is calculated.According to the distribution characteristics of T-bar coefficient with penetration depth,the fitting expression of the parameters in the expression of T-bar correction coefficient is proposed,and then the method of calculating the undrained shear strength of soft soil iteratively based on the test data of T-bar is given.The research results can be used as reference for other similar projects.