ABSTRACT
This chapter describes the induced failure mechanism, analyzes the dominant role of the existing natural plan of weakness on the rock instability and discusses the unsuccessful effect of the used rock supporting system. It argues that the possibility of the structurally-controlled rock failures should be taken into account seriously in design and execution of any earth structures, especially in urban areas. Design of the wall supporting system by assuming the rock mass as a continuum media with equivalent geomechanical parameters. While, the existing fault plane caused the rock mass to behave as discontinuous, with structurally controlled failure incidence. Regarding the dominant role of the major geological discontinuities on stability of rock slopes, in preliminary designing of the wall supporting systems, the potentiality of structurally controlled failures should be taken into account, especially in urban areas.
