Fig. 6

Typical failure modes of unstable rock masses: (a) sliding failure of rock mass Y12, (b) toppling failure of rock mass F5, (c) tensile cracking failure of rock mass F2, (d) tensile cracking–toppling failure of rock mass F8.
Typical failure modes of unstable rock masses: (a) sliding failure of rock mass Y12, (b) toppling failure of rock mass F5, (c) tensile cracking failure of rock mass F2, (d) tensile cracking–toppling failure of rock mass F8.