Bravekind, Mining at a depth of 1.5km or 1500m is nothing. These operations are known as hard rock mines and are accessible by a vertical mine shaft with a elevator and the drifts or headings which are horizontal offshoots of the shaft where the actual mining takes place. Sometimes drilling of ore in these headings must be done vertically(straight-up) this is known as raise mining. There are a variety of different techniques for extracting the ore. Also many underground mines today eliminate the shaft by using ramps from the surface and they are like a series of declines blasted through the rock so that machinery can move down and throughout the mine on a series of roadways or ramps.

For example Inco's Creighton mine in Sudbury, Ontario:

As one of Ontario's longest running mining operations, the Creighton Mine is still in operation today.

Since 1901, the mine has produced over 160,000,000 tons of ore, producing 4.8 billion pounds of nickel and other associated metals.

At a depth of 1.5 miles, the Creighton Mine is one of the deepest mines in the world and host to the Sudbury Neutrino Observatory.