泥质粉砂岩蠕变特性及非线性蠕变模型研究

张子洋,曹平,刘智振,肖峰

Study on Creep Characteristics and Nonlinear Creep Model of Argillaceous Siltstone

Ziyang ZHANG,Ping CAO,Zhizhen LIU,Feng XIAO

表2 不同应力水平下广义Kelvin蠕变模型拟合参数

Table 2 Generalized Kelvin creep model fitting parameters under different stress levels

应力水平/MPa	$E_{0}$ /MPa	$E_{1}$ /MPa	$η_{1} /$ （GPa·s）	$R^{2}$
6	4.3	8.3	19.7	0.991
8	3.7	113.8	270.6	0.971
10	4.2	102.7	120.9	0.988
12	4.7	98.9	183.0	0.991