基于声发射的倾斜软硬互层岩石破坏特性研究

周可凡,刘科伟,郭腾飞

Study on Failure Characteristics of Inclined Soft and Hard Interbedded Rocks Based on Acoustic Emission

Kefan ZHOU,Kewei LIU,Tengfei GUO

表2 声发射仪器的参数设置

Table 2 Parameter settings of the acoustic emission device

参数 数值 门槛值/dB 40 前置增益/dB 40 采样长度/kB 5 采样频率/MHz 10 PDT/μs 50 HLT/μs 300 HDT/μs 200