Failure Mechanism of a Coal-Rock Combined Body with Inclinations of Structural Planes and a Calculation Model for Impact Energy

Figure 3

Loading monitoring system. 1, AE monitoring system; 2, monitoring system for axial force; 3, strain monitoring system; 4, iron ore; 5, axial force sensor; 6, strain gauge; 7, AE sensor; 8, iron plate; 9, specimen; 10, upper pressurised cylinder; 11, steel prop to avoid eccentricity; 12, lower pressurised cylinder; and 13, base of the press machine.