GEOTECHNICAL ISSUES REGARDING THE CONCEPT OF MARGINAL STABILIZATION IN CASE OF LANDSLIDE

Abstract

Landslides are presently approached as predictive processes, by slope stability analyses when building new constructions in zones prone to landsliding or through postevent interventions, to restore the temporary malfunction of the construction affected by the soil instability. Although sliding itself as post-event effect induces a temporary stabilization by random movement of the soil masses down the slope, rehabilitation of the affected constructions, involves retrofitting of the man/made slopes, retaining structures accompanied by drainage works in a unitary approach, to create intended stability on the zones of interest. The concept of marginal stabilization presented in this paper involves both evaluations of the geotechnical parameters by back calculations and the sizing of the geotechnical works for soil loads identified by the geometrical repointing, required by the damaged construction retrofit into the social/economical circuit.

Keywords

• landslide
• slope rehabilitation
• marginal stabilization
• shear strength
• landslide risk