proceeding

Geotechnical and geophysical investigation of a rock mass for the design check of an ornamental stone quarry

Maria Teresa CarrieroDepartment of Structural, Geotechnical and Building Engineering , Polytechnic of Turin , Turin , ItalyMaria MigliazzaDepartment of Structural, Geotechnical and Building Engineering , Polytechnic of Turin , Turin , ItalyCesare CominaUniversity of TurinAnna Maria FerreroDepartment of Earth Sciences , University of Turin , Turin , ItalyBattista TaboniUniversity of TurinGessica UmiliUniversity of TurinSergio Carmelo VinciguerraDepartment of Earth Sciences , University of Turin , Turin , ItalyFederico VagnonDepartment of Environment, Land and Infrastructure Engineering , Polytechnic of Turin , Turin , Italy

2023en

Ochiq kirishYashil

Litsenziya: other-oa

ABI

Annotatsiya

The design of an open-pit quarry must continuously adapt to the real conditions of the excavation faces, to meet safety requirements and maximize the effectiveness of the operational process. The case study of an ornamental stone quarry characterized by great value and challenging excavation geometry is analyzed in this study. The exploited rock mass is characterized by a nonubiquitous discontinuity distribution due to the presence of highly fractured bands, mainly parallel to the excavation faces. The discontinuity network needs to be analyzed to forecast the rock mass mechanical behavior during excavation. In this regard, the integration of geotechnical and geophysical surveys allows the rock mass to be studied from the surface to a considerable depth. Trace mapping on scaled digital images was combined with traditional geomechanical methods andGPR surveys, executed on the excavation faces, to assess the variability of discontinuity spacing and to characterize the fractured bands.

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