Stability Analysis Method to Underground Goafs in Opencast Mining Based on FEM

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Abstract:

The 3D model of terrain, which includes goafs, is built by use of terrain generator from MIDAS GTS. The method is developed that the model is stress analyzed by FEM (finite-element method). The following cases are considered: rock weight, loose rock and Heavy Equipment on step surface. Finally, used to the field datum from Luo’yang Molybdenum Co., Ltd., modeling and stress analyzing are finished by the software of MIDAS GTS. The result indicates that the method could provide scientific basis for Safety and Management to open-pit with Underground mined-out area.

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Periodical:

Advanced Materials Research (Volumes 594-597)

Pages:

246-250

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Online since:

November 2012

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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[1] Fa-ben L., Zi-long Z.,et al. Detection and FEM Simulation of Mined Zones in Sandaozhuang Open Pit[J], Chinese Journal of Underground Space and Engineering, 2005, 6(1): 895-898.

Google Scholar

[2] Xi P.. Study on Stability of Complex Cavity and Safety in Near- cavity Excavation[D].Changsha: Central South University, 2008.

Google Scholar

[3] Hong-yan T., Xiao-zhen J.. Stability Analysis of Abandoned Coal Areas in Baiyun Mine, Guangzhou [J]. Chinese Journal of Underground Space and Engineering, 2009, 5(3): 445-449.

Google Scholar

[4] Xiao-ming L.. Technology of 3D Information Acquisition and Dynamic Destabilization Numerical Analysis of Disaster cavity In Metal Mine[D]. Changsha: Central South University, 2010.

Google Scholar

[5] Xin P.,   Dongliang C., et al. Adopt the Stability Analysis that the Empty Area Near Area Mines Greatly Especially[J] . China Mining Magazine, 2007, 61(4): 70-73.

Google Scholar

[6] Itasca Consulting Group, Inc. Fast Lagrangian Analysis of Continua in 3 dimensions, version 3.0, User Manuals. Itasca Consulting Group, Inc, 2005.

Google Scholar