... The Random Finite Element Method (RFEM) is a powerful technique for incorporating spatially variable shear strength parameters with slope stability numerical simulations. In this research, two-dimensional probabilistic analyses of a large open-cut brown coal mine are presented with particular...

..., including simulation of multiphase flows, was undertaken for each gallery to confirm the effect of dissolved gas and rock permeability on desaturation. A sensitivity analysis was performed by varying dissolved gas contents and permeability. Results indicate that the dissolved gas content affects both...

... Abstract Smeared crack approach coupled with cohesive zone model has been an attractive way for the realistic simulations of dynamic fracturing of rocks and frequently utilized in the framework of the Finite Element Method (FEM). In many cases, cohesive elements (CEs) with initially-zero...

... Abstract Water inflow into the pit is a crucial problem in open pit mine operation when it is constructed below the water table. In this work, inflow rate into the pit mine is simulated by using MODFLOW codes. The model is assumed to be an equivalent porous medium and created in step...

... tunnel face's blasting impact is established to study the influence of the void behind lining in both static and dynamic states. The numerical model is verified by the primary lining's oscillation velocity data, which was monitored near the tunnel face. According to the simulation, voids clearly reduce...

... permeability. This paper presents numerical simulations of hydraulic fracturing with the consideration of fluid infiltration into rock matrix by a two dimensional distinct element method code UDEC. Polygonal blocks are generated by Voronoi tessellation feature to provide incipient fractures for fluid...

... simulation due to their different rotating radius and installation angles, and the model also takes several different rock types into account to consider the stratum influence. The specific rock parameters are collected from the rock samples in Yinhanjiwei Water Conveyance Project. By means of simulating...

... of anomaly patterns and their causes. national taiwan university Simulation relative motion Huang operational tunnel displacement new crack tunnel translation Wang Crack pattern deformation innovative numerical modeling lining crack pattern Chiu YSRM 2017 & NDRMGE 2017 Jeju, Korea...

... ABSTRACT: Complex goaf system at Shouyun Mine is assembled by two upper and lower levels and steep left and right two blocks, the roof cover of goaf system is shallow. The stability of the goaf system are analyzed and predicted by using FLAC 3D numerical simulation. The study shows...

... ABSTRACT: In order to better solve granular flow program PFC2D, meso-mechanical parameters was select in the process of simulation calculation, based on PFC2D programs, in order to improve the traditional method of BP neural network, established in granular flow simulation analysis of rock...

... tunneling engineering is significant. A three dimensional numerical model is establishes to simulate the construction process of certain tunnel construction by using of the finite difference program FLAC 3D . The influence of tunnel construction on wall rock is analyzed, and the laws on how the post...

... studied by numerical simulation using COMSOL software. Numerical results show that the damage zone of the slope first increases then decreases with the increase of layered structural plane angle θ. When θ = 30°, the slope is most easily to destroy. Moreover, the proposed numerical method is applied...

... ABSTRACT: Applying finite different method FLAC and neural network to back-analysis the displacement of tunnel, the testing samples based on orthogonal test design and FLAC numerical simulation are used to constitute mapping of rock parameter and rock displacement, then the modulus...

... landslide deformation Simulation assumption Hungr runout parameter post-failure motion iverson terrain discrete element simulation three-dimensional runout analysis model deposition tail end inclination rapid landslide motion accounting Transit Development in Rock Mechanics- Cal, Yang...

... in large mining height fully-mechanized face and put forward the concept of "pressure vessel" (Hao & Wu 2004). Reservoir Characterization lead abutment pressure Simulation coefficient abutment pressure metals & mining reservoir geomechanics peak abutment pressure weighting interval...

... heat conduction and anisotropic model have been implemented. The temperature-dependent water viscosity was considered during the simulation. The simulated temperature evolution and the consequences on pore water pressure and rock deformation for Opalinus clay were well consistent with experimental data...

... ABSTRACT: The rock mass disturbed by the excavation or other load will evolve from non-equilibrium state to equilibrium state with time-dependent deformation and damage. The simulation of nonequilibrium evolution is very important for evaluating the long-term stability analysis for arch dam...

... ABSTRACT: Deep-hole pre-splitting blasting technology is recently applied to gas drainage through strata for increasing drainage rate in coal mine. At the background of the underground engineering practice, this study is to combine the 3-D numerical simulation with field test of drainage...