With the development of social and science, new requirements are put forward for geotechnical engineering. Advanced geotechnical techniques were proposed to solve the new challenges in geotechnical engineering. The articles presented in this volume aim to the new development of geotechnical engineering such as characterization of geomaterials, slope stability, application of environmental protection materials and some other geotechnical issues that are becoming quite relevant in today's world.

This open access book provides an overview of the progress in landslide research and technology and is part of a book series of the International Consortium on Landslides (ICL). The book provides a common platform for the publication of recent progress in landslide research and technology for practical applications and the benefit for the society contributing to the Kyoto Landslide Commitment 2020, which is expected to continue up to 2030 and even beyond to globally promote the understanding and reduction of landslide disaster risk, as well as to address the 2030 Agenda Sustainable Development Goals.

Flow-like mass movements are among the most severe natural hazards. They often cause catastrophic consequences when involving pyroclastic soils. These soils are widespread all over the world, also in very high populated regions. Modelling the triggering mechanisms of these landslides is a fundamental step for the hazard assessment. Several approaches are available which, however, must be systematically checked through their application to well documented case histories. In this PhD Dissertation (University of Salerno, 2006) a general discussion is provided for these phenomena. Then, a case study is selected from Southern Italy, where huge rainfall-induced flow- like mass movements caused 159 victims in May 1998. Based on geology, engineering geology, geotechnics and geomechanics, a multidisciplinary approach is used for the analysis of the occurred landslides at different scales. Their triggering mechanisms are individuated and their geomechanical modelling is performed through limit equilibrium, uncoupled and hydro-mechanical coupled stress-strain analyses. The obtained results are compared with those available from other models.