High-resolution reflection seismic investigations of quick-clay and associated formations at a landslide scar in southwest Sweden

Soil classification analysis based on piezocone penetration test data — A case study from a quick-clay landslide site in southwestern Sweden

“…This has implications for the proposed scenarios by Malehmir et al (2013a) concerning the generation and formation of quick clays at the site. A plausible scenario for the formation of quick clays is that the coarse-grained materials act as a conduit with direct infiltration (either from the surface through the clays or from the contact between the clays and the bedrock) towards the Göta River.…”

“…On the basis of geophysical data and the occurrences of a coarsegrained layer (detected by reflection seismic methods), Malehmir et al (2013aMalehmir et al ( , 2013b suggested the possibility of quick clays forming at about 10 m depth in the area around 7202, about 20 m depth near 7203 and 25 m depth near 7206. A comparison between the reflection seismic results and our data shows some consistency (Fig.…”

“…Reflection seismic data from lines 5 and 4 are presented and compared with our results in this study. Modified from Malehmir et al (2013aMalehmir et al ( , 2013b soil type and state have interchangeably been used in the literature and sometimes in this paper too. With the soil type we refer to grain size distribution (e.g., clay, silt, sand) and the soil state to the geotechnical properties or behavior of the soil (e.g., dense, contractive, liquefiable).…”

Delineating shallow quick-clay structures using acoustic full-waveform inversion—Case study from southwest Sweden

“…C1, C2 and C3 are the sediment deposits: they consist of intercalating layers of varying P-wave velocity, which we interpret as marine clays (1.5-2.2 km/s) and coarse-grain material (1.2-1.5 km/s). The coarse-grained permeable layers are responsible for transporting fresh waterwhether it is rainwater directed from the highland areas and forming and artesian flow or if it comes from the river -is still a matter of discussion (Malehmir et al, 2013b). The fresh water desalinates marine clays and causes their instability.…”

Mud volcanoes in central Italy: Subsoil characterization through a multidisciplinary approach

“…For this reason, horizontal shear waves were used to achieve the seismic imaging (Signanini and Torrese, 2004;Rainone et al, 2009;Torrese et al, 2012;Malehmir et al, 2013) of the Pineto MV. These waves have benefits when compared to P waves.…”