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Abstract >fXtu:C-!J
Compared to other basic mechanical properties of rocks, Poisson’s ratio is an elastic constant of which the significance is generally wG[n wt0L
underrated. Yet, in rock mechanics, there is a considerable number of diverse areas which require a prior knowledge or estimation of the 8j#S+=l>
value of Poisson’s ratio. This paper examines the values and applications of Poisson’s ratio in rock mechanics. Following an historical ;m7G8)I
account of the initial controversy, whether it was a material constant or not, the effects of Poisson’s ratio in the elastic deformation of :6nD "5(
materials, intact rocks, and rock masses are briefly reviewed. Also, the reported values of Poisson’s ratio for some elements, materials, \s*UUODWK
and minerals are compiled while typical ranges of values are presented for some rocks and granular soils. Finally, Poisson’s ratio ):G%o
classifications are recommended for isotropic intact rocks.
