... in the model, and its hydraulic properties are back-calculated using the measurements. Assuming that there are no changes in the joint hydraulic apertures due to the tunnel excavation, the maximum groundwater pressure immediately behind the SCL is simulated to be approximately 470 kPa. This is lower than...

... on the analysis of a digital surface model. This paper proposes a method to identify discontinuity sets in a point cloud and calculate the spacing of the sets. The discontinuity sets are semi-automatically identified with the open-source software DSE (Discontinuity Set Extractor). The program analyzes the density...

... metals & mining excavation major principal stress pillar drilling fluid formulation calculation gallery stability Abstract Utilization of coal reserves in the protection area of the coal mine gives the possibility of unusual mining methods. Just use methods room pillar in lignite coal...

... and geotechnical analyses within the project conducted by Poltegor-Institute. The calculation procedure enabled determination of slope stability on the design of excavation and spoil dump. It included 21 analyses using Flac v.7 of which 14 regarded the slopes of the pit, 6 the slopes of the external spoil dump...

... mass and the mechanical properties of rocks along the well trajectory are used for this purpose. The article presents numerical simulations of changes of the rock mass state around a directional well. The calculations were conducted with various material models of rock: the linear-elastic model...

... & Gas Coal Basin input data Calculation Parameter thermal model metals & mining thermal field expert system rock mass Czech part calculation carboniferous rock mass vlastimil kajzar procedia engineering 191 temperature value temperature field software Procedia Engineering 191...

... the some level of PPV, an important increase in the calculated load on the arch steel support were observed in the stress concentration zones. These results are in good correlation with numerous cases of rockbursts occurred in the Polish mines. In our opinion, continuous measurement and controlling...

... in Kungkilang Block, South Sumatera. The distribution function determination of the parameters calculated and estimated in @Risk7 using Monte Carlo method for the sampling process and Kolmogorov-Smirnov for the fitting process. Ultimately, from @Risk7 calculation resulted that all parameters have a normal...

... machine learning Artificial Intelligence Reservoir Characterization persistence metals & mining reservoir geomechanics calculation information geomechanical parameter discontinuity rock mass acquisition orientation smr index smrtool fieldwork plane riquelme software...

... state in the vicinity of gas storage in salt caverns under consideration of thermo-mechanical coupled calculations will be presented. Numerical models are created to take into account the essential influence of the volume and depth of the cavern. Furthermore time-dependent, thermo-mechanical coupled...

... of Kashan, Kashan, Iran A. Esmaeilzadeh Department of Mining and Metallurgical Engineering, Urmia University of Technology, Urmia, Iran ABSTRACT: The fractures geometrical characteristics can be calculated by various sampling methods in 1 dimension (1D) & 2 dimensions (2D). The Discrete Fracture Network...

... the calculated GSI values. 1 INTRODUCTION The Geological Strength Index (GSI ) represents today the most widely used engineering index for the cat- egorization of rock mass quality for obtaining input data into the continuum numerical analysis codes and closed form solutions based on the Hoek Brown fail- ure...

... calculation tensile strain Van der Merwe Magnitude Fluid Dynamics surface subsidence maximum tensile strain principal strain post mining field observation subsidence subsidence profile equation metals & mining tilt tilt profile compressive strain underground coal mining...

... output for their designs on the jointed rock mass which largely behaves as a discontinuum. Therefore, as excavations in jointed rock masses and the use of DEM become more widespread, methods for interpretation and auditing become more urgent. Artificial Intelligence calculation jointed roof beam...

... of calculation, lumped parameter model or called a MDOF (multi-degree-of-freedom) model is developed. In this type of model, the drillstring is regarded as a linear system with series of rigid masses connected by massless elastic springs. The Newtonian approach and the energy variational approach (Hamilton's...

... geomechanics drilling operation Reservoir Characterization Upstream Oil & Gas ground type fault rock calculation inner lining Austria Directional Drilling Berlin geotechnical design parameter grautschenhof discontinuity lining interpretation tunnel geotechnical design Design Methodology...

... waste management tunnel face Tunnel Face Stability Investigation safety value calculation stability geometry stability analysis nuclear power plant hand calculation numerical analysis water pressure rock mass safety mecsekérc zrt Fault Zone Abstract The first underground...

... reservoir geomechanics Riemannian approach distance measure geometry Upstream Oil & Gas calculation Riemannian mean Reservoir Characterization riemannian geometry Rock mechanics stress tensor Health & Medicine interpolation tensor mean function matrix mean stress tensor...

... Gaussian beam calculation phase boundary microstructural model Reservoir Characterization Simulation microwave treatment rock model Upstream Oil & Gas microwave irradiation boundary quartz electric field permittivity absorption principal stress simulation chain...

... strength powerhouse construction pit tuffite Reservoir Characterization calculation fine tuffite rock mass parameter drilling operation basalt fine-grained tuffite geotechnical model foundation drill core sample schmidt hammer test Upstream Oil & Gas gravity dam investigation...