Header menu link for other important links
Evaluation and stability assessment of pillars of an underground mine under various conditions
Published in World Research Association
Volume: 14
Issue: 3
Pages: 21 - 29
Extraction of natural mineral resources is highly essential to meet the energy and other requirement of any country. Such resources can be extracted by means of open pit mining or underground mining. Under ideal conditions, 90% of ore can be extracted by open pit mining. But the production rate is not the same compared to underground mining. Underground mining has various limitations. One such limitation is leaving the ore in form of pillars. However, these pillars provide stability for safe extraction and also ensure the safety of men and machines. There is a huge economical loss due to such existing practice. The total left over ore which has high economic importance could not be retrieved once the activity is completed. Irrespective of the size of the underground openings, scientific analysis and design of rock excavations, profits are vastly from the knowledge and understanding of existing stresses within the rock mass. In practice, parameters such as the magnitude of the stress, deformation, pore pressure and load on to the support system due to exploitation and the strength of the structures are estimated rather conservatively to provide an acceptable margin of safety. In this context, this study deals with assessing the safety factor of the pillars, mining the ore from foot wall (FW), parting and hangwall (HW) of an underground mine. To validate the same, a 2 dimensional model has been created and simulated under different conditions and its safety factor has been assessed. © 2021, World Research Association. All rights reserved.
About the journal
JournalDisaster Advances
PublisherWorld Research Association