▎ 摘　　要

This paper reviews a few problems where continuous-medium theory specialized to two-dimensional media provides a qualitatively correct picture of the mechanical behavior of graphene. A critical analysis of the parameters involved is given. Among other results, a simple mathematical description of a folded graphene sheet is proposed. It is also shown how the graphene-graphene adhesion interaction is related to the cleavage energy of graphite and its C-33 bulk elastic constant.