Question
Mining Geology, Mine Development and Surveying Question on Rock Cutting Tool Selection
A rectangular development heading of dimension 3 m x 2.8 m is to be blasted with holes of 2.4 m in length. If the pull factor is 0.95 and swell factor is 1.20, the volume of blasted rock per round, in m3, is_____.(round off up to 2 decimals)
Answer
The correct answer is: 22.97 or 23.00 (approx)