.... Excess pore pressures above and below the helix were monitored. Installation consistently generated positive excess pore pressure above the helix, peaking at AR = 0·9, while the pore pressure beneath the helix diminished with reducing AR . During uplift, the difference between the excess pore...

... migration and build-up of internal pore water pressure) of uncompacted railway embankments under different train loading conditions. A mixed finite-element approach based on the complete solid displacement, fluid displacement and pore pressure ( u – w –p_w) formulation...

... capillarity condensation effective stress expansive clays matric suction partial saturation pore pressure poroelasticity A soil's stress state highly relies on its interaction with water. Such interaction can be intensive, inducing a drop in the free energy of pore water by 2·0 GPa (Zhang...

... expansion of a long cylindrical cavity in a Mohr–Coulomb material obeying the non-associated flow rule, subjected to hydrostatic in situ total stress σ 0 and initial pore pressure u 0 (see Fig. 1). Let a 0 be the initial radius of the cavity, and a its current one under...

... pressure and pore pressure can be equally conveniently evaluated, through basic numerical integrations with respect to the mean effective stress. Some ambiguity is clarified between the generalised (work conjugacy-based) shear strain increments and the corresponding deviatoric invariants of incremental...

.... Failure then spreads to adjacent regions as a result of momentum exchange. Liquefaction is contingent on pore-pressure feedback that depends on the initial soil state. The importance of this feedback is illustrated by using the model to study the dynamics of a disastrous landslide that occurred near Oso...

... 2015 centrifuge modelling clays consolidation pore pressure soil/structure interaction Skirted foundations are commonly used offshore to support fixed platforms or as the bases for subsea manifolds and terminations in soft cohesive soils. They consist of a top plate and a peripheral...

... or more pore pressure transducers (piezoball) is of special interest as it can provide information on the soil consolidation properties by means of dissipation tests. Although analytical and numerical solutions have been developed to evaluate the undrained resistance factor for the ball, the absence...

...C.S. EL MOHTAR; A. BOBET; V.P. DRNEVICH; C.T. JOHNSTON; M.C. SANTAGATA The paper examines the effect of small percentages of bentonite on pore pressure generation in loose sands, from small strains all the way to liquefaction. It relies on resonant column, static triaxial and cyclic triaxial tests...

..., the formulation of the problem is reduced to solving a system of first-order ordinary differential equations for the radial, tangential and vertical effective stresses in the plastic zone. The pore pressure distribution can subsequently be determined from the radial equilibrium equation in terms of the total...

... numerical modelling plasticity pore pressure slopes Computational approaches to slope stability analysis and slope failure remain an active and important area of study for geotechnical engineering, both in theory and in practice. Slope stability analyses have been widely performed using limit...

... pressions d'eau interstitielles sur les tunnels existants. Il s'agit de méthodes indirectes et non destructives, représentant une pratique à la fois pratique et simple d'évaluer la pression interstitielle résiduelle sur le revêtement. groundwater numerical modelling pore pressure tunnels...

... significatif dans ce cas : la nature homogène et la très faible perméabilité de l'argile et l'état naturel de l'argile, probablement affecté par quel-ques dégradations initiales qui ont réduit la résistance disponible le long des plans de stratification. clays dams plasticity pore pressure...

...B. Indraratna; M. Jayanathan 11 01 2005 17 10 2005 © 2005 Thomas Telford Ltd 2005 clays laboratory tests pore pressure rocks/rock mechanics shear strength Fig. 5. Shear behaviour of infilled rock joints inclined at β = 60° in undrained conditions...

...J. Yang 11 07 2003 13 10 2003 © 2004 Thomas Telford Ltd 2004 dynamics earthquakes liquefaction partial saturation pore pressure Ground motion induced by an earthquake is in general characterised by a vector with its components along the vertical and two...

... des essais de baisse capillaire. Cet exposé montre également le comportement du tensiomètre et les caractéristiques des courbes SMC. drainage laboratory equipment partial saturation pore pressure standards suction In unsaturated soils, owing to the existence of air and water...

... respectively. It is evident that, as the degree of saturation is reduced, the excess pore pressure developed decreases rapidly, and the response tends towards that corresponding to drained conditions. In the test carried out on the specimen with a degree of saturation of 0·96%, the response is similar...

...J. Q. Su; Z. Wang 06 03 2003 09 06 2003 © 2003 Thomas Telford Ltd 2003 pore pressure consolidation Studies on the application of electro-osmosis in ground improvement include Casagrande 1948 , 1983 , Bjerrum et al. (1967) , Esrig & Gemeinhardt (1967...

...) , only when U is less than 60% (as shown in Table 1): 05 03 2002 06 03 2003 © 2003 Thomas Telford Ltd 2003 consolidation elasticity permeability pore pressure stiffness theoretical analysis A formula that fits the whole range of equation (4...

... be saturated with voids full of water, or there may be discontinuous and occluded air bubbles present in the water. Pore pressures at depths below the water table are derived from a combination of the weight of the water lying above the given elevation and the drainage conditions below. The pore pressure...