Failure and Acoustic Emissions of Coal–Rock Combinations with Different Dip Angles in the Shaqu No. 1 Coal Mine

• Published in: Advances in Civil Engineering Vol. 2023; pp. 1 - 17
• Main Authors: Fu, Yuping, He, Yongliang, Li, Chuantian
• Format: Journal Article
• Language: English
• Published: New York Hindawi 26.12.2023; John Wiley & Sons, Inc; Wiley
• Subjects: Acoustic emission; Acoustic emission testing; Acoustics; Coal industry; Coal mines; Coal mining; Crack initiation; Damage; Deformation; Disasters; Emission analysis; Energy; Engineering; Excavation; Fractal geometry; Fractals; Geology; Inclination angle; Interface stability; Load distribution; Loading rate; Mechanical properties; Monitoring methods; Permeability; Ratios; Rocks; Strain gauges; Stress-strain curves

The force and deformation characteristics of the rock layer on the top and bottom of the coal seam change significantly when the dip angle changes. The mechanical properties and damage characteristics of differently inclined coal–rock assemblages were investigated, and the results were combined with...