Mode of instability in rock mass is mostly controlled by theorientation and type of discontinuities. Thus, the selection ofstabilization must be made based on the mode of instability. Answerthe following question:
a) Name FOUR (4) basic mechanisms of rock slope instability.
b) List the THREE (3) main parameters that control the stability ofa   jointed rock slope.
It is a common practice to install rock bolt together withcement grout. For an unstable slope face why such practice ishighly recommended. What is the purpose of cement grout in rockbolt installation?
