Study on Electric-Magnetic-Acoustic Signal Regularity and Its Correlation during Rock Shear Failure

Figure 4

Electric-magnetic-acoustic signals of 1# rock sample (1 mm/min). (a) Stress-time. Electric signals of (b) ch2, (c) ch8, and (d) ch9. (e) Acoustic emission signals. Magnetic signals of (f) ch5, (g) ch7, and (h) ch8.

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