Abstract The post-seismic history of the 2008 Mw7.9 Wenchuan earthquake shows that marginally stable deposits large co-seismic landslide dams can pose persistent debris flow hazards for downstream areas. Here, we combine analyses single-station recordings ambient noise with electrical resistivity tomography (ERT) surveys to explore potential drawing information on structure and geometry deposit...

Animal burrows in a river's earthen levee leads to water piping phenomena causing structural damage and eventual collapse during floods. Currently, the state of art comprises case studies that deal with management maintenance, while very few documents attempt at assessing possible animal-induced failure mechanisms. For latter, detection characterisation animal is crucial Electrical Resistivity ...

Salt-water intrusion (SWI) is a worldwide problem increasingly affecting coastal aquifers, exacerbated by climate changes and growing demand of fresh-water. Therefore, research on this topic using both physical numerical modeling has been intensified, aiming to achieve better predictions the salt-water wedge evolution design suitable countermeasures its negative effects. This work presents labo...

238 C geophysical methods are increasingly used to estimate hydrogeologic properties of the unsaturated zone. Th ese methods provide high-resolution in situ information for large support volumes of the subsurface with minimal intrusion and thereby have obvious advantages over other more traditional methods such as neutron probe and time domain refl ectrometry. In particular, cross-borehole elec...

Cracking and deterioration of concrete are the leading causes of a premature failing of reinforced concrete structures. To assess the condition of concrete, a variety of destructive and non-destructive testing methods have been developed. From these two methods, the non-destructive testing (NDT) is a more favorable (albeit more challenging) option since the tested target is left undamaged. The ...

Abstract. Permafrost as a climate-sensitive parameter and its occurrence distribution play an important role in the observation of global warming. However, field-based permafrost data information on subsurface ice content large area southern mountainous Tibetan Plateau (TP) are very sparse. Existing models based boreholes remote sensing approaches suggest probabilities for most mountain ranges....

Following previous geoelectrical researches initiated in 2009 for the delineation and characterization of seawater intrusion a freshwater aquifer Sarmatian (late Middle Miocene) age, subsurface imaging survey via 2-D electrical resistivity tomography (ERT) was conducted 2019 on outskirts Vama Veche resort—Romanian Black Sea southern coast. The organized framework field camp sponsored by Foundat...

Insufficiency of potable water is acute in southwest (SW) coastal areas Bangladesh. The local population ignores the depth to saltwater/freshwater interface causing many unsuccessful waters wells drilling. In this context, a combined use borehole logs, geophysical well vertical electrical soundings (VES), resistivity tomography (ERT) and conductivity (EC) sampled was performed identify depths p...