Based on the viewpoints ofrock fracture mechanics, compressivestrengthofrock mass controlled by discontinuities is discussed.
基于岩体断裂力学的观点，探讨基于结构面扩展的岩体抗压强度准则。
2
The point load testing as a simple, rapid, reliable and cheap method can determine indirectly the tensile and compressivestrengthofrock in the field.
岩石的点荷载实验法简便、迅速、可靠、成本低，能在现场间接确定矿岩抗拉强度与抗压强度。
3
Theoretical reason of reducing ball size of coarse grinding has been found through tests on compressivestrengthofrock and rupture stress of natural ore lump.