Prediction of abnormal geological structures ahead tunnel drilling (ahead geological
prospecting) has become an essential routine work in the tunnel excavation, offering …

The surface conductivity of porous rocks has two contributions: the first is associated with the
diffuse layer coating the grains and is frequency-independent as long as the diffuse layer is …

Fluvial levees are assets of major importance for protecting human lives and activities. To
prevent the risk of failures and to assess their stability, survey campaigns involving …

We have developed a mechanistic model to interpret spectral induced polarization data of
partially saturated clay-rocks. This model accounts for the polarization of the grains through …

ABSTRACT A petrophysical model describing spectral induced polarization (IP) has been
developed for clay rocks accounting for the Maxwell-Wagner polarization. It is also used to …

Clay material characterization is of importance for many geo‐engineering and
environmental applications, and geo‐electrical methods are often used to detect them in the …

Geophysical methods are widely used for landslide investigation to delineate depth and
geometry of the sliding plane. In particular, electrical resistivity tomography (ERT) is often …

Compacted bentonite is considered as a potential buffer material for deep geological
disposals of high-level nuclear wastes. Methodologies to non-intrusively monitor the water …

The parameters used to describe the electrical conductivity of a porous material can be used
to describe also its thermal conductivity. A new relationship is developed to connect the …

While tunneling in karst terrains, engineers may encounter unpredictable well-developed
karst conduits, which frequently lead to water inrush accidents. Geological processes …