Please use this identifier to cite or link to this item: http://ea.donntu.edu.ua:8080/jspui/handle/123456789/5030
Title: Use of FLAC3D for mining induced seismicity prediction
Authors: Назимко, В.В.
Keywords: FLAC3D
Ground movement
Issue Date: 2011
Publisher: Proceedings of the 2nd International FLAC /DEM Symposium on Numerical Modeling – 2011, February, 14-16, 2011, Australia Proceedings of the 2nd International FLAC /DEM Symposium on Numerical Modeling – 2011, February, 14-16, 2011, Australia Proceedings of the 2nd International FLAC /DEM Symposium on Numerical Modeling – 2011, February, 14-16, 2011, Australia
Abstract: ABSTRACT: This paper demonstrates the possibility of mining induced seismicity (MIS) prediction with FLAC3D that explicitly involves the time. The higher the rate of deposit extraction is, the more dynamic event occurrence is possible in vicinity of a moving face as a result of accumulation of potential energy due to rock mass deformation. Increase of the rate of longwall face advance shifts the state of surrounding rocks from equilibrium. The rate of advance has been calibrated in a numerical model using experimental data from extensometers displacement monitoring. Seismic factor calculation based on an idea that increase equivalent stress–its-derivate production builds up potential energy of rock mass deformation and raises probability of dynamic failure if the rate of the energy dissipation is low. Comparison of simulated seismic events distribution with experimental data demonstrated good agreement.
Description: ABSTRACT: This paper demonstrates the possibility of mining induced seismicity (MIS) prediction with FLAC3D that explicitly involves the time. The higher the rate of deposit extraction is, the more dynamic event occurrence is possible in vicinity of a moving face as a result of accumulation of potential energy due to rock mass deformation. Increase of the rate of longwall face advance shifts the state of surrounding rocks from equilibrium. The rate of advance has been calibrated in a numerical model using experimental data from extensometers displacement monitoring. Seismic factor calculation based on an idea that increase equivalent stress–its-derivate production builds up potential energy of rock mass deformation and raises probability of dynamic failure if the rate of the energy dissipation is low. Comparison of simulated seismic events distribution with experimental data demonstrated good agreement.
URI: http://ea.donntu.edu.ua/handle/123456789/5030
Appears in Collections:Статті кафедри маркшейдерської справи

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