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Keywords: effective stress
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Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-049
... ABSTRACT: The analysis of wave-induced pore pressure and effective stresses is an important factor in the design of offshore installations. However, to simplify the complicated problem, most previous investigations have ignored the effects of inertia forces. This paper presents an analytical...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-191
... of overconsolidated natural clays. Four consolidated undrained tests and one consolidated drained test were carried out on samples of Belfast Upper Boulder Clay obtained at various depths and locations. The effective stress in the specimens p k was measured using a pressure plate apparatus for each sample...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-221
... ABSTRACT: The authors have developed a CAL program called ESP, ( E ffective S tress P rogram) to support civil engineering undergraduates in learning the principle of effective stress and its application. Two versions of ESP were produced based upon separate learning strategies. ESP96 has...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-249
... 1. INTRODUCTION To study the effectiveness and design method of steel sheet pile wall supports driven at both edges of an embankment as a countermeasure against liquefaction of foundation, numerical analysis using an effective stress analysis method, LIQCA (Oka et al., 1994), was carried out...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-224
... and delivery modes. machine learning Reservoir Characterization Upstream Oil & Gas supplier investigation email structural geology Artificial Intelligence Simulation courseware effective stress availability University US government geotechnical engineering permeability Engineering...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-291
... ABSTRACT: Soil nailing is an earth retaining technique used to stabilise existing slopes and support excavations. The stability post construction can change due to variation in groundwater, resulting in a reduction of effective stress in the soil. Nine centrifuge model experiments were...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-308
... structures are damaged by the residual settlement. laboratory test consolidation behavior pre-loading method loading condition undrained side over-consolidated state consolidation curve numerical analysis OCR oedometer consolidation test effective stress pore water pressure clay layer...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-041
... ABSTRACT: Although the shear strength expression proposed by Coulomb (1776) for masonry, brick and earth, made up of cohesion and friction components, is still in general use today, it was not until Terzaghi (1936) presented the principle of effective stress that it could be used...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-052
... Upstream Oil & Gas compliance matrix rotation effective stress variation plastic potential function plane th plane plane elastic-plastic model suction state boundary surface semi-saturated soil principal stress axis normal stress boundary surface increment SUMMARY...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-209
... vertical stress ( sh/sv) when under a condition of zero lateral strain. KAOLIN - BENTONITE MIXTURES The kaolin used was Speswhite China Clay, marketed by English China Clays Ltd. reservoir geomechanics secondary consolidation OCR effective stress Upstream Oil & Gas wijeyesekera kaolin...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-373
... the pile and soil parameters affect the degree of set-up. Upstream Oil & Gas mechanism bearing capacity cavity expansion theory Reservoir Characterization displacement horizontal stress earth pressure cell pressure cell horizontal effective stress test pile setup shaft stress...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-368
... the pile base capacity. pressure increment Upstream Oil & Gas effective pressure earth pressure bearing stratum effective horizontal stress Reservoir Characterization rubber membrane effective stress construction drilling bit geo-cell level installation withdrawal speed negative...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-376
... ABSTRACT: Many piles with various lengths and plates were tested in Khon Kaen loess. The critical depth of driven and bored piles was found to be 9.5 and 7.5 times that of pile size respectively. The pile friction was the effective stress multiplied by 0.5 and 0.3 for driven and bored piles...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-066
... effective stress clay layer model parameter Graham construction conlin yin compression Reservoir Characterization porewater pressure increase zone 1 creep Deformation Response POREWATER PRESSURE AND DEFORMATION RESPONSES IN CLAYS UNDERNEATH TARSIUT ISLAND AND BERTHIERVI LLE TEST EMBA NKMEN T...
Proceedings Papers

Paper presented at the ISRM International Symposium, August 30–September 2, 1989
Paper Number: ISRM-IS-1989-053
... available. A strength criterion to determine whether or not the rock salt has failed, was considered in the numerical modelling. calculation effective stress emplacement field solid waste management failure criterion excavation disposal drift thermomechanical analysis Reservoir...
Proceedings Papers

Paper presented at the ISRM International Symposium, August 30–September 2, 1989
Paper Number: ISRM-IS-1989-119
... fracturing materials fracturing fluid tiss experiment hydraulic fracturing Fluid Dynamics fracture flow capacity inertial coefficient McDaniel flow in porous media Upstream Oil & Gas correlation coefficient proppant Embedment fracture effective stress Ottawa sand...
Proceedings Papers

Paper presented at the ISRM International Symposium, August 30–September 2, 1989
Paper Number: ISRM-IS-1989-114
... Upstream Oil & Gas structural geology undrained shear behaviour characteristic consolidation path void ratio flow in porous media strength Lagon Bouffe MPa stress path Reservoir Characterization Fluid Dynamics particle stress magnitude experiment effective stress pore fluid...
Proceedings Papers

Paper presented at the ISRM International Symposium, August 30–September 2, 1989
Paper Number: ISRM-IS-1989-121
... plastification resistance material effective stress ko 0 Rock at Greatoepth, Maury & Fourmaintraux (eds), © 1989 Balkema, Rotterdam. ISBN 9061919754 Stresses around a borehole for low strength materials Contraintes autour d'un forage dans les rnateriaux peu resistants Spannungen urn ein Bohrloch...
Proceedings Papers

Paper presented at the ISRM International Symposium, August 30–September 2, 1989
Paper Number: ISRM-IS-1989-116
... to the compressibility during the progressive deformation of the material. 1.1 Concept Deformation of a sandstone reservoir rock occurs in response to a change in the effective stress, either by an alteration in the total stress, or be- cause of change in pore fluid pressure (Terzarghi 1936; 1943 (1) ,. where: (J...
Proceedings Papers

Paper presented at the ISRM International Symposium, August 30–September 2, 1989
Paper Number: ISRM-IS-1989-112
... to the presence of a mineral cement) and pore spaces filled with various pore fluids. Deformations occur in, response to changes in effective stress, either in response to increased total stress due to burial or tectonic loading, or because of changes in pore flnid pressure (Terzatghi 1936; 1943 whereb'is...

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