The use of three-dimensional laser scanning for deformation monitoring in underground mines.
on May 17, 2018 in Downloads, PapersThe measurement and management of deformation in underground excavations is a key responsibility of geotechnical and mining engineers. A critical aspect of these roles is to ensure ground support is ensuring there is sufficient capacity for the expected demand. Current methodologies for monitoring deformation and ground support serviceability limits require measuring displacement at distinct points, or using visual observations. These current methods limit the assessment to a qualitative interpretation of deformation across the entire excavation. Recent advancements of Light Detection and...
Read MoreApplications of hydro-mechanically coupled 3D mine and reservoir scale, discontinuous, strain-softening dilatant models with damage
on Jul 23, 2015 in Downloads, PapersFlatten, A., Beck, D. Copyright 2015 ARMA, American Rock Mechanics Association In gas and oil as well as in several mining applications hydro-mechanical phenomena play an important role and need to be considered in numerical models for calibration and forecasting analyses. In this paper, a two-way coupled hydromechanical formulation is described and applied to real size, complex 3D mining and reservoir model examples including structures using the Finite-Element Method (FEM) framework. The proposed coupling considers increasing hydraulic conductivities due to the evolution of rock mass damage...
Read MoreNumerical simulation of the released energy in strain-softening rock materials and its application in estimating seismic hazards in mines
on Jun 16, 2015 in Downloads, Papers
Vladislav Levkovitch, David Beck, Frederik Reusch Beck Engineering, (Germany and Australia) This paper describes the use of Rate of Energy Release (RER) to assess the likelihood of mining induced seismic events. We describe a computational framework for simulating RER, the expected and confirmed correlation with induced seismic events and present some example results from mines. [Download]
Read MoreA preliminary, calibrated scheme for estimating rock mass properties
on Sep 2, 2013 in Downloads, Papers
D.A. Beck and C.R. Lilley Beck Engineering Pty Ltd. Sydney Australia F. Reusch, V. Levkovitch, G. Putzar and A. Flatten Beck Engineering. Berlin, Germany Calibration of 3D, discontinuum, strain softening, dilatant (SSD) models of mines often yields different rock mass scale (representative elementary volume, or REV) properties to empirical methods. In this paper, some steps towards a calibrated empirical scheme for estimating material properties for some types of 3d, discontinuum non-linear models targeting larger than (REV) scale phenomena are described. The scheme uses typical pre-mining...
Read MoreCoal Seam Gas, induced earthquakes and underground water
on Sep 30, 2012 in Downloads, Papers
D.Beck, Beck Engineering Pty Ltd, Sydney, Australia Australia relies on coal for base-load electricity, but cleaner energy sources are being added to the mix to pursue longer-term emission reduction targets. Coal seam gas (CSG) and other gas-generated electricity sources are intermediate steps towards the goal of lower emissions – they are cleaner than coal, and can compete in the current energy market. Viable, cleaner energy sources, such as CSG that are compatible with existing energy infrastructure should also help build the renewable energy market. Download...
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