Rock Stability Assessment Based on the Chronological Order of the Characteristic Acoustic Emission Phenomena
Table 1
Statistics of characteristic AE phenomena.
No.
AE hit
AE event
Dominant frequency
Energy
Hit rate
First high
Through-going distribution
High in last to undergo
Sim1
1-III
2-IV
2-IV
5-IV
4-IV
6-IV
Sim2
1-I
3-IV
2-IV
3-IV
5-IV
6-IV
Sim3
1-III
2-III
4-IV
2-IV
5-IV
6-IV
Sim4
1-II
3-IV
2-IV
3-IV
5-IV
6-IV
Sim5
1-II
2-III
4-IV
2-III
5-IV
6-IV
Sim6
1-II
2-IV
2-IV
2-IV
5-IV
6-IV
Sim7
1-II
2-IV
2-IV
4-IV
5-IV
6-IV
Sim8
1-II
2-III
3-IV
3-IV
Sim9
1-II
2-III
3-IV
3-IV
Sim10
1-I, L
2-L
2-L
4-L
5-IV
6-IV
Sim11
1-II, L
2-L
3-L
2-L
5-IV
6-IV
Sim12
1-I
2-L
2-L
2-L
Note. Arabic numerals before “-” represent the chronological order of the characteristic AE phenomena; roman numerals and letter “L” after “-” represent the crack development stage at which the characteristic AE phenomena occurred.
