Research Article

Rock-Arch Instability Characteristics of the Sandstone Plate under Different Loading Conditions

Figure 9

Rock-arch instability process under the concentrated loading.
950870.fig.009a
(a) Elastic stage
950870.fig.009b
(b) Brittle rupture stage
950870.fig.009c
(c) Bearing loading stage
950870.fig.009d
(d) Rock-arch instability stage