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Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-057
... and no time stepping. An efficient Laplace inversion scheme is implemented which significantly improves the performance of the method. A library of constant, linear and quadratic elements is created. Equations of thermal conductivity are solved in the Laplace domain and the solution is inverted back to time...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-151
...APPLICATION OF FLOW EQUATION IN UNSATURATED SOIL TO A SELECTIVE SORBENT. Jean-François Vanden Berghe1, Bénédicte Bauduin2, Albert Mertens de Wilmars3 and Alain E. Holeyman4 ABSTRACT This paper investigates the possibility to extend the models used frequently in soil mechanics to another materials...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-096
... environmental conditions. The prediction method proposed in this study consists of the theoretical equations of the diffuse double layer theory (Mitchell, 1993; Van Olphen, 1991) and London s theory (London, 1937), the proposed equations for evaluating the relationship between the swelling deformation of buffer...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-086
... velocity heavy metal land reclamation numerical simulation anode ionized heavy metal aquifer purge water reaction operational variable cathode remediation concentration mathematical model pore water electrokinetic remediation equation electrode ELECTROMIGRATION OF HEAVY METALS IN PORE...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-117
... LNAPL ganglia gasoline mobilization nonaqueous phase liquid vibration equation SAND VIBRATION FOR MOBILIZATION OF GASOLINE GANGLIA Digna de Faria Mariz1 , Maur’cio Ehrlich2 and Francisco J. Casanova O. Castro3 ABSTRACT An increasing number of incidents of nonaqueous phase liquid (NAPL) spills...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-077
... in the transport equation for a fine-grained soil. One of the important aspects of this new experimental apparatus is the behaviour of the membrane that surrounds the clay plug. Several sets of experiments were conducted to investigate the influence of the osmotic membrane acting alone. The diffusion of sodium...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-072
... Reservoir Characterization nonlinear model compression test strain level stiffness foundation hole lateral loading test loading test application elastic property equation dam body rock foundation dependency soft rock foundation plate loading test reservoir geomechanics filldam...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-092
.... Despite this, the standard Advection-Dispersion Equation (ADE) is usually employed in solute transport problems, primarily for its simplicity. This paper will look at simplifications of a general non-Fickian model to reduce it to a standard ADE with transport parameters that vary spatially or temporally...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-112
.... land reclamation isotherm BTEX decontaminant solution remediation concentration characteristic contaminant removal tween 20 anionic surfactant contaminant organic compound test result surfactant solution equation Compound isotherm test Upstream Oil & Gas sri test coefficient...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-082
... and field investigations. seepage analysis water pressure expansion model fill calculation rainfall reliability pore water pressure foundation embankment wet zone centrifuge test slope surface rainfall device equation front face phreatic surface seepage flow constant strength...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-087
... concentration Upstream Oil & Gas contaminant mathematical model reagent contaminated soil porosity contaminant concentration effective porosity equation contaminant removal numerical modeling NUMERICAL MODELING OF IN-SITU BIOCHEMICAL CONTAMINANT TRANSFORMATION J. Liu1 and H. Muhlhaus2 ABSTRACT...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-102
... mechanical behaviour Paste stress increase msw mechanical behaviour volumetric strain correspond compression test municipal solid waste mechanical behaviour MSW void ratio equation TOWARDS MODELLING THE MUNICIPAL SOLID WASTE MECHANICAL BEHAVIOUR Sandro L. Machado1, Miriam F. Carvalho2...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-108
... amount of compression occurs in the first two or three years. Integration of this function leads to the total gas production up to time t which is illustrated in Figure 3. The time dependent amount of subsidences i1ss (t) can be predicted by equation (1) where Q(t) is the total gas production as function...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-133
... in the buffer. The chemical potential was measured by the thermocouple psychrometer and the humidity was measured by the hygrometer. The equation to calculate the water content from the temperature and the chemical potential (or humidity) was obtained by laboratory test in advance. The buffer close...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-049
... solution to the equations governing the wave-induced seabed response, including inertia terms in the whole problem. The numerical results show that the inertia forces cannot always be ignored. The relative difference of pore pressure between the present solution (with inertia items) and the previous...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-034
.... Reservoir Characterization exponent failure criterion Artificial Intelligence criterion prediction Upstream Oil & Gas test result criteria hoek-brown criterion MPa machine learning strength sigma 1 envelope failure envelope estimation equation triaxial strength rock mass sigma 3...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-083
... conditions, the water phase flow is slow and the air phase flow is in the steady state. The expression equations can be written as following. S r z n P P N f z r f za s D D P PPs s D ( , ) ( ) ( ) / = + 1 122 2 ( 0<r<f(z), -hu z 0 ) (1) where N Hw a w 1 = ( ) ; N...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-044
... Biot oil reservoir fluid flow Engineering pore pressure fluid-solid coupling flow Fluid Dynamics displacement fluid withdrawal differential equation numerical model finite element Upstream Oil &amp; Gas consolidation global matrix matrix equation reservoir deformation A FINITE...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-109
... analytical equations. In several figures the relations of the diffusivity parameters depending on the water content are presented. Using a simplified model the moisture transfer is demonstrated. SOIL-WATER CHARACTERISTICS In all tests a Kaolinite was used. Applying different methods (tensiometer...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-124
... crack tensor excavation stiffness deformation normal stiffness numerical result hydraulic fracturing aperture hydraulic conductivity Nonlinear Elasticity equation drift wall fracture fractured rock mass COUPLED HYDRAULIC AND MECHANICAL MODEL WITH NONLINEAR ELASTICITY OF FRACTURED ROCK...

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