Microseismic Signal Characterization and Numerical Simulation of Concrete Beam Subjected to Three-Point Bending Fracture

Figure 7

Microseismic signal spectrum characteristics of concrete beam during fracture processes.

(a)  kN,

(b)  kN,

(c)  kN,

(d)  kN,

(e)  kN,

(f)  kN,

(g)  kN,

(h)  kN,

(i)  kN,