1 14 Discontinuities7.1 The occurrence of discontinuities
In Fig. 7.1, we illustrate just two examples of discontinuous rock masses.
In fact, all rock masses are fractured, and it is a very rare case where the
spacings between discontinuities are appreciably greater than the
dimensions of the rock engineering project. In Fig. 7.2, we illustrate the fact
(a)Figure 7.1 Two examples of discontinuous rock masses.