Influence of Loading Rate on the Failure Characteristics of Composite Coal–Rock Specimens Under Quasi-static Loading Conditions

Interbedded rock layers are a typical geological structure in coal measures. In underground mining practices, the disturbance resulting from the extraction of long-wall panels changes the loading rate of roof–coal structures. To investigate the mechanical behavior and failure characteristics of roof...

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Veröffentlicht in:	Rock mechanics and rock engineering 2022-02, Vol.55 (2), p.909-921
Hauptverfasser:	Lu, Zhiguo, Ju, Wenjun, Gao, Fuqiang, Yi, Kang
Format:	Artikel
Sprache:	eng
Schlagworte:	Acoustic emission Axial strain Axial stress Civil Engineering Coal Coal mining Compressive strength Cracking (corrosion) Cracking (fracturing) Damage Deformation Diameters Earth and Environmental Science Earth Sciences Energy Energy transition Failure Geological structures Geophysics/Geodesy Heterogeneity Load distribution Loading rate Mechanical properties Modulus of elasticity Original Paper Pollution monitoring Rocks Roofs Sandstone Scanning electron microscopy Sedimentary rocks Signal processing Strain Underground mining Underground structures
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