H.S. Mitri, Numerical modelling of mining-induced energy around the mine stopes at Sigma mine. In “La recherche et l’innovation dan l’exploitation des mines”, Published by the Quebec Ministry of Natural Resources, October 1997, Vol. 3, pp.43-52. M. Chekired, B. Benmokrane and H.S. Mitri, Instrumentation of fully grouted cable bolts. U.S. Rock Mechanics Symposium, N.Y., June 29-July 1 (1997).
8/1/2018· The numerical models allow study of the whole process of strata movement induced by underground mining. Here, the whole process of strata movement induced by underground mining at Chengchao Iron Mine was studied using a numerical method based on field geological survey data, which provided a basis for sensitivity analysis of in-situ stress and joint parameters.
INTRODUCTION Numerical modelling is routinely being used in geotechnical engineering research and practice. As explained by Burland , through the well known Burland Triangle (Fig.1
The results of a three-dimensional finite element analysis of a radial-axial splitter used to break intact granite blocks are presented. Numerical results are in good agreement with the physical modelling and field studies, thus validating the numerical formulation implemented. © Rapid Science Ltd. 1998.
10/1/2019· In recent years, numerical modelling is promising in evaluating the effects of discontinuities on the mechanical properties of coal mass. Deisman et al. (2010) discussed two geomechanical characterisation methods for coal seams: geological strength index (GSI) and synthetic rock mass (SRM). They have developed numerical models to simulate the scale effects of strength, anisotropy and confining stress on large coal
10/14/2020· This code then was used successfully to 3D longwall mining, and the numerical results were well in keeping with the field monitoring and physical modeling. The numerical results revealed that the fractured zones exhibit a 3D elliptic paraboloid shape, and mining-induced shear fractures, which dominated over the tensile fractures, had a 3D annular shape above the overlying strata, whereas a
Groundwater Modelling for Mining 2 Numerical Modelling covers setup of a numerical model, model calibration and verification, modelling predictions, and evaluation of model uncertainty. The course comprises ten learning sessions of 30 to 60 minutes each, several case studies, and interactive reviews that confirm achievement of the learning
all numerical models. F3D is a continuum code with yield criteria suitably flexible for modelling the full stress/strain response of coal type materials. Only a quarter section of the bord and pillar array needs to be modelled, once symmetry conditions are enforced in both
Design of tabular excavations in foliated rock: an integrated numerical modelling approach E. EBERHARDT*, D. STEAD†, M. J. REEVES* and C. CONNORS‡ *Department of Geological Sciences, University of Saskatchewan, Saskatoon, Saskatchewan, S7N 0W0, Canada †Camborne Schools of Mines, University of Exeter, Redruth, Cornwall TR15 3SE, UK and ‡Hudson Bay Mining and Smelting
Sometimes the decision is backed up by numerical modelling analyses in anticipation of stress changes as a result of mining. Nevertheless, a systematic engineering methodology is rarely employed to optimise ground support systems in underground mines. Oct 2019: Event: The Ninth Sometimes the decision is backed up by numerical modelling
12/24/2013· (4) Novel applications of mathematical and numerical modeling to practical geotechnical projects such as pile foundations, soil nails, mining, joint rock mass, rock grouting, rockfill dams, and arc dams. These papers are expected to be helpful references for all those in the field of mathematical and numerical modeling in geotechnical engineering.
Data mining approaches to the health and demographic surveillance system in Cuatro Santos, Nicaragua Int J Equity Health . 2019 Oct 29;18(1):165. doi: 10.1186/s12939-019-1054-7.
This paper presents a review on the numerical manifold method (NMM), which covers the basic theories of the NMM, such as NMM components, NMM displacement approximation, formulations of the discrete system of equations, integration scheme, imposition of the boundary conditions, treatment of contact problems involved in the NMM, and also the recent developments and applications of the NMM.
Numerical models are often used to assess the effectiveness of benched slope designs or rock fall barriers to minimise risk to personnel or equipment. Commonly used numerical modelling software and simulation impact theories include: • ‘RocFall’ — two-dimensional lumped-mass impact model (2DLM).
In this paper a numerical 3D analysis of a full launch system, composed by an air-core compulsator which feeds an electromagnetic rail launcher, is presented. The analysis has been performed by using a dedicated, in-house developed research code, named “EN4EM” (Equivalent Network for Electromagnetic Modeling).
Big data analysis can be carried out through several methods, such as web crawlers, databases and data warehouses, analysis, visualization and big data mining algorithms. Among them, web crawlers are a popular analysis technology in recent years. They can extract numerical value or text data from a web page and format it into analysis data.
Copyright @ All rights reserved.