China Safety Science Journal ›› 2022, Vol. 32 ›› Issue (11): 65-73.doi: 10.16265/j.cnki.issn1003-3033.2022.11.2690
• Safety engineering technology • Previous Articles Next Articles
XIAO Peng1,2(), GAO Zhen1,**(), SHUANG Haiqing1,2, WU Mingchuan1, CHENG Yueying1, GUO Chenhua1
Received:
2022-05-28
Revised:
2022-09-11
Online:
2022-11-28
Published:
2023-05-28
Contact:
GAO Zhen
XIAO Peng, GAO Zhen, SHUANG Haiqing, WU Mingchuan, CHENG Yueying, GUO Chenhua. Analysis of coal fracture evolution characteristics under different loading rates[J]. China Safety Science Journal, 2022, 32(11): 65-73.
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Tab.3
Acoustic emission signal parameter table of coal samples under different loading rates
加载速率/ (mm·min-1) | 声发射峰值 计数/个 | 声发射累计 计数/个 | 声发射峰值 能量/(mV·ms) | 声发射累计 能量/(mV·ms) | 声发射事件 累计数/个 |
---|---|---|---|---|---|
0.05 | 225 | 267 344 | 1 005 | 29 765 | 2 090 |
0.10 | 293 | 102 902 | 1 504 | 24 577 | 1 224 |
0.50 | 414 | 65 064 | 2 229 | 10 185 | 890 |
1.00 | 1 262 | 25 861 | 3 347 | 8 825 | 786 |
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