A Case Study On Controlled Blasting In Marble Mine

Abstract

Mining is the process of economically extracting minerals from the Earth's crust. The mining sector has several India's mining sector is crucial for the country's economy, providing raw materials for industries like steel, cement, and manufacturing. Efficient excavation methods are essential for mining operations, as drilling and blasting are the cheapest methods. Proper blast design is essential to minimize harmful effects and ensure safety. Common safety concerns include ground vibrations, fly rock, noise, premature detonations, and air or dust pollution. Air decks can improve explosive efficiency, and blast design parameters can be classified into explosive characteristics, rock characteristics, and blast geometry and initiation sequence. Controlled blasting is essential in dimensional stone mining and marble mining, as it reduces revenue from inferior dimensions of finished product. A study investigated various blasting techniques and found that existing techniques were satisfactory for controlling blasting nuisances. A new initiation pattern for blasting in overburden extraction produced less vibration and reduced damage to marble.