Determination and Correlation of a Few Properties of Coal

Abstract

Mining activities of minerals play a very important role on the health and wealth of any nation. Though technology has reduced the adverse effects to a great extent, it is still experiencing unpredictable behaviour of rocks/coal. The cutting tools used for excavation often exhibit breakdown, high wear and tear due to change in the properties of rock/coal materials. There are many attempts to minimise these events and accurate determination of the properties is one of those. The major strength parameter is usually correlated with other parameters determined at field. The present study focuses on the study of different physical parameters of coal from regions of Talcher, IB valley and Jharkhand area. The regions are well known for huge coal mining. In coal mining operations we deal mainly with differentmechanical properties and its varying strengths since mining methods hugely depends on it. Research in geology and rock mechanics is done to elucidate the influence of the rock index properties in determining the strength, durability, crushability and nature of the rock. This project throws light on the prediction of the coal behaviour and nature of it, by finding a correlation between them. Unconfined Compressive Strength, density, Protodyakonov Strength Index and ultrasonic pulse velocity measurements are carried out and correlated with established approaches