开挖卸荷与孔隙水压耦合作用下千枚岩蠕变力学特性研究

蔡鸿宇, 王运敏, 李小双, 耿加波

Study on the Creep Mechanical Properties of Phyllite Under the Coupling Effect of Excavation Unloading and Pore Water Pressure

Hongyu CAI, Yunmin WANG, Xiaoshuang LI, Jiabo GENG

表2 开挖卸荷和孔隙水压耦合作用下饱和千枚岩短期力学指标

Table 2 Short-term mechanical indexes of saturated phyllite under the coupling of excavation unloading and pore water pressure

试件编号 弹性模量ET/GPa 短期峰值强度σP/MPa T4-P0 21.89 60.8 T4-P0.5 20.89 59.31 T4-P1 19.83 58.11 T4-P1.5 18.66 54.77 T1.6-P0 21.45 58.66 T1.6-P0.5 20.05 57.21 T1.6-P1 19.04 56.06 T1.6-P1.5 17.25 52.90