Variation Law of Infrared Radiation Temperature of Unloading Fracture of Composite Coal-Rock

Figure 10

-- experimental curves of different components of composite coal-rock. Among them, (a), (b), and (c) are the -- experimental curves of the samples 1^#, 6^#, and 11^# at the unloading confining pressure rate of 0.003 MPa/s, 0.03 MPa/s, and 0.05 MPa/s, respectively.

(a) -- experimental curves of different components of sample 1^#

(b) -- experimental curves of different components of sample 6^#

(c) -- experimental curves of different components of sample 11^#