Use of Schmidt Hammer with special reference to strength reduction factor related to cleat presence in a coal mine. (April 2016) - Bilgin, Nuh
Highlights: A new excavability classification system is suggested for coals. A new evaluation method of Schmidt Hammer tests suggested for cleat existence. The highest 3 Schmidt Hammer readings are the best suited for strength evaluation. Strength reduction factor can be reliably used for excavability classification. Excavability classes are verified by measuring laboratory specific energy.