Estimating the amount of conductive and nonconductive constituents in the pore space of sediments by using electrical resistivity logs generally loses accuracy where clays are present in the reservoir. Many different methods and clay models have been proposed ...

Centrifuge tests have been carried out on kaolin clay slopes subject to variations in surface rainfall and humidity corresponding, at model scale, to successive wet and dry seasons in the field. An analysis of the phase ofepisodic regional softening is presented ...

Sulphatic claystones exhibit a heavily swelling behavior and are among the most problematic rocks for tunnelling. Their swelling is usually attributed to the transformation of anhydrite to gypsum. The paper questions this simplistic hypothesis through a qualitative ...

The basis of the design of earth and rockfill dams is focused on ensuring the stability of the structure under a set of conditions expected to occur during its life. Combined mechanical and hydraulic conditions must be considered since pore pressures develop ...

It is well known that the foundations of the Leaning Tower of Pisa were stabilised using the method of underexcavation to reduce the southward inclination of the Tower by about 10 percent in combination with controlling the seasonally fluctuating water ...

The paper presents comparison of 2D and 3D analyses of an exploratory adit of a NATM tunnel in stiff clays using two constitutive models (hypoplastic model for clays and Mohr-Coulomb model). The stress-release factor β of 2D simulation has been optimised to ...

<p>The focus of this study is on potential damages to buildings resulting from expansive soils in Tanzania, particularly clay soils in Kibaha. For the fact that most of the affected structures are founded on expansive soils, a clear understanding of the behaviour ...

The responses of the individual base and side components of O-cell load tests on drilled shaft foundations can be evaluated within an elastic continuum framework using results from seismic piezocone tests (SCPTu). The SCPTu is an optimal means for collection ...

<p>Based on conceptual frameworks of soil behavior and published experimental data related to stress and strain thresholds, alternative cyclic strain regime divisions and the cyclic strain thresholds that represent the change in soil behavior are proposed. ...

A review of the concept of progressive failure in the context of slope stability and an application of this concept to a spread failure in an eastern Canada clay deposit.