... slope, under saturated conditions, using kinematic analysis with the help of Dips software, and two numerical simulation techniques, viz., the finite and the distinct element methods using the software packages RS2 and UDEC respectively. Probable mode of failure represented by the distinct element...

... ABSTRACT: While wells reach deeper and deeper targets, understanding the cutting mechanism under confinement is not yet fully mastered. Among the numerical methods used to study this problem, the Discrete Element Method has already shown promising results, but the evolution of rock behavior...

... spalling and falling etc, induced by excavation are quite prominent. Numerical modeling is an important way to help us understand the failure mechanism of rocks. Many numerical methods have been used to simulate the excavation of rock mass. For example, the finite element method (FEM) (Karakus and Fowell...

... Abstract According to the geometrical characteristics of triangular meshes, Triangular Mesh Split Model (TMSM) based on a finite element method is proposed to simulate cracks propagation of fractured rock. With TMSM, stress intensity factors at the tip of cracks are obtained by far-field...

... with the yield of wall due to excavation is very important and necessary supports and reinforcement should be provided. Numerical simulations using discrete element method (DEM) and finite element method (FEM) have been done to understand the stress variation around single and twin tunnels. Studies are also done...

... in 3D media, enabling fluid leak-off from fracture to poro-elastic medium. We have developed a numerical model using the Generalized Finite Element Method (GFEM) to simulate fluid driven fracture in a poro-elastic medium that addresses these challenges. In the GFEM framework, special enrichment...

...THREE DIMENSIONAL SIMULATION OF HYDRAULIC FRACTURING ON FAULT USING LATTICE ELEMENT METHOD *J. K.-W. Wong, K. Soga, X. Xu Department of Engineering, University of Cambridge Trumpington Street, Cambridge, United Kingdom CB2 1PZ (*Corresponding author: [email protected]) J.-Y. Delenne The Ingénierie...

... is a kind of finite element method constituted the mechanical properties of intact rock and discontinuity systems in rock mass, and can be analyzed the non-linearity of deformation under loading and unloading stress paths considering the confining pressures of rock joints. For analyzing, the geometrical...

... element method Zhao Reservoir Characterization reservoir simulation explosion fracture toughness scaling method Upstream Oil & Gas strength Rock mechanics particle loading international journal rock mass tensile strength tunnel specimen rock material rock dynamic application...

... the only credible approach. In this study, we employed both the finite element method and the discrete element method for modeling rock cutting. Our immediate goals were to develop a framework within the two methods so that a laboratory rock scratch test could be well modeled. The reasons for the focus...

... field stresses using boundary element method (BEM3D) and local stresses are then estimated by finite element or finite difference methods under certain conditions. To show the applicability of this algorithm, it is applied for the Seymare Dam (SD) to determine the stress field. Based on the local...

... Artificial Intelligence underground structure poroelastic rock media Wellbore Design displacement reservoir geomechanics rock mass element method convolution integral response matrix Reservoir Characterization Upstream Oil & Gas rock media boundary multi-region problem multi...

... of using Boundary Element methods for modelling the sequential excavation of a tunnel in an visco-plastic rock mass. This method has the advantage over the FEM that the mesh is reduced by one dimension (surface instead of volume elements) and that no truncation error is introduced. First results, which...

... A new model for hollow rock bolts which comprises rock material, hollow bolt material, bolt/rock interface, is developed on the base of the composite element method (CEM). The main advantage of the new model is that it can be incorporated into the conventional finite element analysis. So...

... Upstream Oil & Gas discontinuity element tessellation mesh generator boundary element method reservoir geomechanics Simulation displacement discontinuity method Displacement Discontinuity Element Reservoir Characterization element method hydraulic fracturing three-dimensional...

..., finite element method and/or others. Using numerical analysis based on continuum mechanics, however, the simulations of destruction phenomena caused by elastic waves and on the other hand, the elastic wave propagation which generated by fracturing events are quite difficult. In this paper, we express...

... The sixth underground pumped powerhouse cavern is under construction now in Korea. For the stability analysis of the five underground powerhouses, finite element method was used. For this analysis, in-situ rock stresses were measured by overcoring method and horizontal to vertical stress ratio...

... Upstream Oil & Gas strength discontinuity reservoir geomechanics overburden block movement rock mass tunnel element method material property instability right wall excavation Fault Zone discontinuum Reservoir Characterization DFN model joint property deterministic model...

...A practical formulation of Flow Element Method for large shear deformations Une formulation pratique de la meth6qe "Flow Elemenf' pour des problemes de grandes deformations de distorsion ' Eine praktische Formulierung der FlieB-Elemente-Methode fOr Probleme einer groBen Scherverformung T.NISHIMURA...

.... In the second approach, distinct element method, a discontinuum numerical technique, is used for analysing the motion behaviour of moving rock blocks during rockslide The results of the study indicate the usefulness of the approaches in analysing debris flow and rockslides respectively. RESUME': Mouvement de...