ABSTRACT
The author describes in this chapter the multi-approach back-analyses of two instability phenomena associated to underground and open pit mining excavations as clear examples of an appropriate control and design strategy in mining. In particular, the collapse of a roof of a mining room excavated in a bedded rock mass and the complex failure phenomenon of a slope in an open pit wall are back-analyzed by means of a multi-approach technique. These approaches have been extremely helpful to understand the mechanisms behind the observed behaviors as well as to identify the most relevant features affecting stability for every case. The acquired knowledge has been a key point to control stability in further mine developments in all cases.
