6 [1] Clay-rich mass transport deposits (MTDs) in the Ursa Basin, Gulf of Mexico, record 7 failures that mobilized along extensional failure planes and transformed into long runout 8 flows. Failure proceeded retrogressively: scarp formation unloaded adjacent sediment 9 causing extensional failure that drove successive scarp formation updip. This model is 10 developed from three-dimensional seis...

[1] Clay-rich mass transport deposits (MTDs) in the Ursa Basin, Gulf of Mexico, record failures that mobilized along extensional failure planes and transformed into long runout flows. Failure proceeded retrogressively: scarp formation unloaded adjacent sediment causing extensional failure that drove successive scarp formation updip. This model is developed from three-dimensional seismic reflect...

Consistency limits are the basic parameters used as standard inputs for any soil investigation program to evaluate geotechnical properties of fine-grained soils. The primary objective this study is investigate variations in undrained shear strength clays with different plasticity based on fine content, clay mineralogy, and water absorption capacity. To achieve objective, 33 Fall cone tests were...

Varved clays, which consist of alternating layers of silt and clay, are common in glaciated regions of North America and Northern Europe. This layering results in several unique engineering properties making varved clays a challenging soil for engineering design. Varved clays have hydraulic conductivity and undrained shear strength anisotropy that far exceeds that of most other soils. The stren...

The stability of unsupported rectangular excavations in undrained clay is examined under the influence anisotropy and heterogeneity using three-dimensional finite element upper lower bound limit analysis with Anisotropic Undrained Shear (AUS) failure criterion. Three anisotropic shear strengths are considered study, namely triaxial compression, extension, direct simple shear. Special considerat...