building a decline, page-9

All,
$4.500 to $5.000/per metre is a good gauge atm for a 2 boom Jumbo in a Decline,Depends on size of Decline, how many holes drilled vs. Anfo used and Ground Support required. The best advance rates you can achieve are about 1.5cuts per shift as these are single headings apart from when you cut a 20mtr Stockpile every 100mtrs, its then you get the opportunity to fire 2 headings at the same time, but this generally buggers the next shift up as all they do is bog out all shift. To get 1.5cuts per shift you will require Independent Firing to be approved or it will be end of shift firing and as such your Decline development would drop to 1 cut per shift,Advance is dictated by the size of the decline, but generally it is between 3mtrs to 5mtrs advance per cut. As a side note: Motts record was set on multiple headings ready to drill, not a Decline.