The Bedretto Underground Laboratory for Geosciences and Geoenergies (BULGG) allows
the implementation of hectometer (> 100 m) scale in situ experiments to study ambitious …

Geological storage of CO2 is one means of mitigating the effects of continued burning of
fossil fuels for power generation. An important component in the storage concept is the …

The two-dimensional (2D) cross-hole seismic computed tomography (CT) imaging
acquisition method has the potential to characterize the target zone optimally compared to …

Subsurface excavation results in the formation of a zone called excavation damaged zone
(EDZ) around the tunnel wall. An EDZ is a major concern in the field of high-level radioactive …

We model the full wavefield produced by a seismic velocity survey and optimise the
representation of the fracture zone to best match field waveforms. The velocity survey was …

The saturation of the compacted bentonite buffer in the deep geological repository can
cause bentonite swelling, intrusion into rock fractures, and erosion. Inevitably, erosion and …

Seismic waveform-inversion offers opportunities for detailed characterization of the
subsurface. However, its full potential can only be exploited when any systematic source …

Bentonite is a material commonly included in the design of the sealing liners of radioactive
waste repositories. Understanding the evolution of its elastic properties during the repository …

Safe isolation of high-level radioactive waste (HLW) and spent nuclear fuel (SF) from the
biosphere is an important concern for humanity. Many countries consider monitoring the …

Bentonite is often considered as buffer material for deep geological radioactive waste
repositories. To support decision making and safety assessment of radioactive waste …