摘要: … the strength of coal mine pillars on the basis of compression tests performed on small samples. From these studies, a number of quite different formulas relating compressive strength …
M.D.G. Munro, A.H. Salamon, A study of the strength of coal pillarsJournal of The South African Institute of Mining and Metallurgy. ,vol. 68, pp. 55- 67 ,(1967)
来源期刊
Rock Mechanics Felsmechanik M�canique des Roches Springer-Verlag