ABSTRACT:

The necessity to protect important infrastructures constructed, along the south coast of Madeira Island, at the top and at the bottom of high cliffs, against the collapse of isolated rock blocks or of significant masses of soil and rock debris, has lead to the development of complex geotechnical projects and to the execution of specific stabilization works. This paper describes, for some of those cliffs, the existing geological conditions and the main instabilization processes that affect them. Attending to the acquired experience from these works, some considerations are presented about the advantages and limitations of the stabilization solutions considered, especially in what concerns the required logistics for their execution.

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