With the increasing awareness to the geological risks, the study of rock slope stability plays a key role in the Earth Sciences, especially in areas with high vulnerability for the presence of infrastructures and human activities. These issues require an accurate analysis of the geological processes which knowledge can be obtained from several independent or integrated measurement techniques; nowadays, Digital Terrestrial Photogrammetry (DTP) and Laser Scanning (LS) are some of the most widespread techniques used in studying the slope stability. The engineering-geological data and the geometrical setting of the rock slopes and discontinuities (ex. attitude and spacing) are needed to study the geological risk related to the stability of natural or artificial fronts. DTP and LS allow to get this information also in inaccessible sites and they permit to manage data within a GIS. In addition, it is always necessary to know the physical-mechanical properties of intact material and joints; such information come either from laboratory or in situ tests and from engineering-geological surveys. Data collected by traditional methods and recent geomatics techniques, have allowed an accurate analysis of slope stability by means of distinct elements numerical modeling; in such a way the mass stress has been evaluated and the possible failure mechanisms recognized.
Tecnologie geomatiche per l'analisi di stabilità dei fronti rocciosi tramite modellazione numerica ad elementi distinti
FRANCIONI M;
2010
Abstract
With the increasing awareness to the geological risks, the study of rock slope stability plays a key role in the Earth Sciences, especially in areas with high vulnerability for the presence of infrastructures and human activities. These issues require an accurate analysis of the geological processes which knowledge can be obtained from several independent or integrated measurement techniques; nowadays, Digital Terrestrial Photogrammetry (DTP) and Laser Scanning (LS) are some of the most widespread techniques used in studying the slope stability. The engineering-geological data and the geometrical setting of the rock slopes and discontinuities (ex. attitude and spacing) are needed to study the geological risk related to the stability of natural or artificial fronts. DTP and LS allow to get this information also in inaccessible sites and they permit to manage data within a GIS. In addition, it is always necessary to know the physical-mechanical properties of intact material and joints; such information come either from laboratory or in situ tests and from engineering-geological surveys. Data collected by traditional methods and recent geomatics techniques, have allowed an accurate analysis of slope stability by means of distinct elements numerical modeling; in such a way the mass stress has been evaluated and the possible failure mechanisms recognized.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
