... material but also on the interactive soil-pipe system. Reservoir Characterization side fill diameter flexibility soil load radial pipe deformation narrow trench soil box test stiffness Upstream Oil & Gas boundary condition trench Crown Angular Position wide trench flexible pipe...

... variables and a conformal mapping onto a circular ring. The boundary conditions are that the surface of the half plane is completely free of stress and that the tunnel undergoes a prescribed displacement corresponding to an ovalization of the tunnel. When the solution is com- pared to a previously published...

... machine learning material behavior NN soil model strain increment neural network boundary condition Stability Evaluation increment STABILITY EVALUATION FOR EXCAVATED SLOPE USING FI- NITE ELEMENT-NEURAL NETWORK HYBRID ALGORITHMS Hong-Ci Wu1, H.L.M.Martens2, Saad Al-jibouri2, Tai Bao1 and Xiao-Bin...

... water management Simulation boundary condition Artificial Intelligence electromigration velocity heavy metal land reclamation numerical simulation anode ionized heavy metal aquifer purge water reaction operational variable cathode remediation concentration mathematical model...

... mechanisms and mechanics of slope movements induced by changes of boundary conditions. FOREWORD The word mechanism in the context of slope stability is generally used to describe the modes of deformation and rupture of slopes. It is hence essentially related to geomorphological features of slopes...

.... Physically mechanical dispersion arises due to the tortuous paths that solute streamlines must travel (Bear, 1972). The tortuous paths result from the pore geometry of the porous medium. Mathematically advection is represented by a hyperbolic equation, which does not require a downstream boundary condition...

... and disappears characteristics of aquifer soil and boundary condition. When the aquifer layer is clay soil, the air volume injected into aquifer soil can be stored as high value and the scatter range of air is also widely. In opposite, when the surface layer is sand, the air volume injected into soil foundation...

... of 322,560 grid blocks (more than 250,000 active grid blocks). The grid constructed was a true 3D MODFLOW representation of the regional geology with a horizontal resolution of 50m and a vertical resolution of 5 to 50m. Boundary Conditions The boundary conditions used to represent the regional groundwater...

... of the hydraulic load applied to it. The correct simulation of the flow with a Finite Elements Method (FEM) program could permit a validation of a simple analytical solution and give the possibility to extend the use of the FEM model to the actual boundary condition existing in situ. INTRODUCTION CB slurry...

...., 1997; Skopek et al., 1994). Collapses are generally characterized by relatively rapid excessive volume compression. Factors producing such a volume compression thus indicate the susceptibility to collapsing. They may be classified into two groups: soil properties and boundary conditions. o rigin al sam...

... a statically admissible stress field. This stress field satisfies equilibrium, the stress boundary conditions and nowhere violates the yield criterion, thus ensuring that the solution obtained is a rigorous lower bound on the true collapse load. Detailed numerical investigations suggest that the new lower...

...). Es is related to the pressuremeter modulus and a factor dependent on the soil type. Upstream Oil & Gas elastic zone ground surface lateral deflection good agreement average value maximal lateral subgrade reaction equation boundary condition soil reaction pile head deflection...

... dam foundation earth pressure Raithel equation geotextile coating calculation calculation model settlement foundation system geotextile coated sand column ring tension force soft soil boundary condition numerical calculation foundation ABSTRACT: As against conventional...

... the locations of the newly excavated boundary to create the required traction-free boundary condition for the enlarged excavation. By superimposing the static and dynamic solutions, one can compute the displacements and stresses at any location in the rock mass, at any time. An example is given to demonstrate...

... stress dependent elastic moduli minor principal stress iteration Upstream Oil & Gas variation major principal stress principal stress reservoir geomechanics boundary loading axisymmetric case boundary condition Santarelli Reservoir Characterization outer boundary loading...

..., with these material properties and boundary conditions, could be an effective method for the control of severe convergence of a gallery. After the calculation, conclusions can be drawn for the design of the dimensions of the destressing slots. The potential of destressing seems to be limited by the required slot...

... is given in Fig. 1) the conditions of continuity of the stress and displacement vectors are complied with. subsurface water contact problem procedure cross section Fotiyeva underground structure subject water pressure plane contact problem functional equation formula boundary condition...

...) From this point of view it implies that the process of tunnelling and lining will change the boundary conditions. Seepage potential field will be changed according to the change of boundary conditions even though the water head remains unchanged. Consequently the water load also varies in pace...

... mass itself will always remain unknown up to a certain extend. Beyond that all input data for a computer calculation like the material properties, the loading and the boundary conditions may vary within the investigated system, whereby the exact variability of those values will not be known...

... by the linear defference relations for numerical computation of the approximate step-by-step procedure. The boundary conditions on the elastic- Plastic boundary are the deformations calculated by the elastic theory outside the Plastic region around the tunnel. It is proved that the results of deformations...