外荷载下青砂岩声发射特征及损伤演化规律
王文才,李俊鹏,王创业,陈世江,王鹏

Acoustic Emission Characteristics and Damage Evolution of Green Sandstone Under External Loads
Wencai WANG,Junpeng LI,Chuangye WANG,Shijiang CHEN,Peng WANG
图4 青砂岩试样T2频谱图
Fig.4 T2 spectrum of green sandstone rock sample