Controlled Blasting in Mines

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Controlled blasting in an open-pit mine for improved slope stability.
A controlled blasting programme (presplitting) was adopted in an open-pit copper mine in order to improve the stability of the resulting cut slopes. The aim was to reduce over break and minimize damage to the final pit walls from production blasts. The use of presplitting allowed considerably higher benches to be adopted with much steeper overall slope angles. The extra cost of presplitting was fully justified by the improved face stability and the resulting reduction in overburden quantity.

 A Crying Boy. 1955 PhotoN G Nair Kerala travel 2010.
 N G Nair Kerala Travel Thiruvananthapuram. I was born and brought up at the Beautiful Coastal Kerala, but I was fascinated by the mountains of Western Ghats since from my child hooddays. Mountain ranges in Kerala consisting of high land area of Western Ghats. The western Ghats are not true mountains but are the faulted edge of Deccan Plateau. They have believed to have formed about 150 million years ago. The range called Sahyadri Mountains in Maharashtra and Sahya mountains in Kerala. Also see Wayanad District in north east of Kerala. Ponmudi is a hill station in Thiruvananthapuram.N G NairMining Consultant India on Indian Mining Legislation

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