Study on Compression Fracture Evolution and Damage Mechanism of Coal–Rock Composite Specimen Under Different Coal Interlayer Thickness
This study investigates how coal interlayer thickness influences the compression fracture evolution and damage mechanism of coal–rock combinations. Pure coal, pure siltstone, and siltstone–coal–siltstone specimens with 2‐ and 3‐cm coal interlayers were examined through uniaxial compression tests combined with acous...