The PF/PF-A (Progressive Failure of Structurally Controlled Overbreaks) experiment examines how structurally controlled rock mass damage evolves and spreads in faulted Opalinus Clay shale exca- vations. The project includes an in-situ experiment, installed at the Main Fault of the Mont Terri rock laboratory (MTRL), (hydro)mechanical laboratory testing of fault rocks, with a focus on natural scaly- clay and tectonic fault planes, as well as discontinuum numerical modelling and simulations. In this paper, key observations are summarised and discussed.
The PF-A experiment: in-situ progressive failure of faulted Opalinus Clay — insights from underground excavation, laboratory tests, and numerical simulations / Ziegler, M., Schefer, S., Furche, M., Beilecke, T., Burschil, T., Loew, S., Obermann, A., Winhausen, L., Amann, F., Marone, C., Volpe, G., Coppola, L., Raharsya Andiva And Qinghua Lei, M.. - (2026). (43rd Mont Terri Technical Meeting Porrentruy ).
The PF-A experiment: in-situ progressive failure of faulted Opalinus Clay — insights from underground excavation, laboratory tests, and numerical simulations
Chris Marone;Giuseppe Volpe;Luca Coppola;
2026
Abstract
The PF/PF-A (Progressive Failure of Structurally Controlled Overbreaks) experiment examines how structurally controlled rock mass damage evolves and spreads in faulted Opalinus Clay shale exca- vations. The project includes an in-situ experiment, installed at the Main Fault of the Mont Terri rock laboratory (MTRL), (hydro)mechanical laboratory testing of fault rocks, with a focus on natural scaly- clay and tectonic fault planes, as well as discontinuum numerical modelling and simulations. In this paper, key observations are summarised and discussed.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
