The Hoek-Brown criterion was introduced in 1980 to provide input for the design of underground ex-cavations in rock. The criterion now incorporates both intact
Excavation damage under high in situ stress depends largely upon the potential block size associated with any violent ejection. The size and shape of the dynami
Rock mechanics plays a critical role in the design and construction of hydroelectric projects including large cavs under high in situ stress, deep tunnels with