.... The caved zone of the overlying strata was formed below the inner boundary of the pressure-arch. The elastic energy was accumulated in the pressure-arch and the energy arrived the highest at the front arch foot. The accumulated energy at the arch foot was released by coal mining and the shear zone could...

... Intelligence Simulation simulator processor saturation reservoir geomechanics displacement co 2 boundary parallel performance Reservoir Characterization Upstream Oil & Gas geofem asian rock mechanics symposium 29 equation Rutqvist deformation injection Development of Parallel Coupled...

... Intelligence orientation boundary north-south seismic belt Magnitude Abstract With the purpose of studying Chinese mainland shallow crustal stress state, we have built a spherical shell finite element model including main active faults, tectonic blocks, topography, and Moho discontinuity...

... Distinct Element Code (UDEC) is employed to better understand the mechanism of the displacement behavior brought about by heavy rain. The numerical analysis reveals that when the groundwater rises and reaches the height of a discontinuity (the boundary between the rhyolite and the granite), the water...

..., during the rock cutting processing, such the periodic singular stress fields moving along the rock surface will cause the rock boundary fracture continually. In the present article, a fracture-based model is proposed for rock breakage by using an energy-based method. The indentation stress intensity...

... Shimizu boundary distinct element method Drillstem Testing cement particle particle cfd-dem modeling grout injection test outflow equation 8th Asian Rock Mechanics Symposium ARMS8 14-16 October 2014, Sapporo, Japan 3D CFD-DEM Modeling for Clogging Process of Cement-based Grout H. Shimizua...

... observations. equation of state asian rock mechanics symposium arms8 Reservoir Characterization displacement boundary chamber wall eigenstrain host rock fluid modeling Upstream Oil & Gas gravity load Sapporo hydraulic fracturing interface deformation injection magma chamber october...

... mechanics symposium arms8 drilling fluid selection and formulation drilling fluid property Fluid Dynamics injection pressure turbulent flow condition evaluation critical reynolds number equation laminar grout permeability feasibility laminar flow boundary reynolds number 8th Asian Rock...

... Abstract We analyzed the pattern of heat diffusion in rock around an underground heat storage cavern with considering temperature-dependency of thermal properties. Based on theoretical solutions of heat diffusion for a semi-infinite boundary (a linear variation form) and a circular boundary...

... at the tunnel crown of lining was induced, near the boundary between soft rock and soil. The deformation could not be explained by ordinary seismic shear motion in layered ground. The seismic isolation walls were relatively superior to the piles in terms of maximum sectional forces acting on the lining...

... in southeastern Taiwan. From 1991, two years after the tunnel is built, until now, damages are continually reported. According to investigations of ground surface displacements, it is very likely that more than one boundaries of slope moving masses pass through the tunnel. Within the possible areas in the case...

... machine, the torque directly reflects the drilling energy. It is also sensitive to discontinuities such as layer boundaries, layer separations, and cracks in the rock mass. Torque logging data are obtained from a roof bolter with thrust, rotation, and stroke during drilling for the roof rock...

...), and the sandstone image is from Fig. 23b of Haimson (2007). The marble is from an outcrop in Tuscany and was formed by contact metamorphism from a limestone that resulted in a complete static recrystallization of the limestone to give a granoblastic texture of regularly shaped grains with straight boundaries...

..., i.e. crack initiation, propagation and coalescence. The tensile fracturing was expressed by separation of each element boundary. At each element boundary, a fracture potential defined by the ratio of tensile strength to induced normal stress was calculated for every element boundary. If the fracture...

... Oil & Gas natural fracture boundary rock block orientation artificial joint pipe network model discontinuous deformation analysis University axis Chinese Academy fracture propagation Effect of Natural Fractures on Hydraulic Fracturing Yuxing Bena*, Qinghai Miaob, Ying Wangcand Gen...

... research tunnel tunnel characteristic discrete fracture network Groundwater Flow fluid modeling Upstream Oil & Gas fracture length hydraulic conductivity rock mass fracture boundary DFN side length fractured rock mass Modeling the Hydraulic Properties of a Fractured Rock Mass at KAERI...

... geologist historical information of mined out pit is not highly effective since some pitfalls were found when modeling material boundary. Thus, GIS approaching tends to overcome this problem. By the system, human error could possibly be reduced and information of mined out pit could be more manageable...

... methane Upstream Oil & Gas Thickness boundary stratum ABSTRACT The plastic characteristics of the coal seam floor has been explored in this article on FEM stength reduction with the software of ANSYS, and the plastic area perforation process has been given. The slip scope given on FEM...

... flow in porous media cavern boundary structural geology civil engineering water curtain system hydraulic confinement usmani Reservoir Characterization Upstream Oil & Gas Storage System unlined rock cavern horizontal joint reservoir geomechanics Fluid Dynamics investigation...

... with this anisotropy, as the secondary stress field is oriented parallel to the tangent of the excavation boundary. For statistically homogeneous joint direction and spacing there will be regions around the tunnel boundary where the rock strength will attain minimum and maximum values. In particular, for relatively...