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
表4 青砂岩试样AE信号试验结果
Table 4 AE signal test results of green sandstone samples
参数名称青砂岩试样及试验结果
QSY1QSY2QSY3
阶段Ⅰ累积事件数/个3 6813 5733 812
阶段Ⅰ累积能量/[(mV·μs) ·s-12.81×1052.73×1052.93×105
阶段Ⅱ累积事件数/个9 3818 7689 627
阶段Ⅱ累积能量/[(mV·μs)·s-15.79×1055.42×1055.91×105
阶段Ⅲ累积事件数/个14 37913 69415 098
阶段Ⅲ累积能量/[(mV·μs)·s-19.07×1058.46×1059.24×105