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3 不同应力水平下伯格斯蠕变模型拟合参数
Table 3 Burgess creep model fitting parameters under different stress levels
应力水平/MPaE0/MPaE1/MPaη1/(GPa·s)η2/(×104 GPa·s)R2
64.38.419.26.10.991
83.7133.7582.91 126.10.939
104.2102.8120.4604.40.988
124.799.6179.395.10.991
145.1157.4391.813.40.990
165.5127.4742.94.80.993