OPTIMIZATION OF PILLAR SIZES IN UNDERGROUND COAL MINES
Author(s):
SUMEET KISHORE
Keywords:
Bord and Pillar; safety factor; extraction ratio; pillar design; ore body.
Abstract
Prospecting for ore bodies, analysing the feasibility of extraction, determining the operation's profitability, and extracting the needed resources are all operations involved in mining. Different strategies have been approached for mining effectiveness while keeping output and safety in mind. The Bord and Pillar method of mining is one among them. The most important aspect of successful Bord and Pillar mining is choosing the right pillar size. Around 60% of the coal in Indian mines is obstructed in the form of pillars. This study examines the various pillar design procedures used around the world in general and analyses the existing practises of an Indian mine in particular. The mine will collapse if the pillars are too small. If the pillars are excessively large, substantial amounts of valuable material will be left behind, lowering the mine's profitability. The durability of pillars and successful extraction from them has become a serious problem in recent years. The safety factor is the most critical criterion to consider while building a pillar.The major goal of this article is to raise the extraction ratio of Bord and Pillar workings while maintaining a high level of safety.
Article Details
Unique Paper ID: 153013

Publication Volume & Issue: Volume 8, Issue 6

Page(s): 580 - 588
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