shaft mining

This could also be an alternative to shaft mining as seen on picture 2.

Since 1956 the company had been working on plans to switch to sub-surface shaft mining.

Both open pit and shaft mining took place.

As well as drift mines, small scale shaft mining was used.

Shaft mining was done in some areas, but the limiting factor was the problem of removing water.

In the mountains, shaft mining predominated, producing large amounts of waste.

Traditional techniques of panning and shaft mining, however, yielded only limited output.

Natalon had shown a willingness to experiment, which would be required to successfully master the new art of deep shaft mining.

Sungai Lembing in the heyday was a large centre for shaft mining of 'timah' better known as tin.

Coalton became significant during the early to mid-twentieth century with its shaft mining operations, hence its village name.

Access to a mine by adit has many advantages over the vertical access shafts used in shaft mining.

Shaft mining began in the fifteenth century, and by the Industrial Revolution mining was being done on a large scale.

By 1964 new technology meant that it would be possible to continue the surface mining to lower levels, although trials with shaft mining received the go-ahead.

Alluvial gold production started to decline in 1895, after which Mining Companies commenced deep shaft mining.

During his time in command at Coal River, he instigated shaft mining, enabling more and better quality coal to be mined.

Mining journal, a record systematically describing the strata through which a mine shaft passes (see shaft mining)

The mining method used in Raub is shaft mining and started at the Raub Hole.

Improvements in stamping efficiency and cost increases in traditional shaft mining made these sand tailings economically feasible to reclaim and re-stamp.

Industrial-size shaft mining has existed in Ghana for 100 years, but with the price of gold soaring, more companies are arriving now, this time bringing open-pit cyanide mines.

Coal is extracted from the ground by coal mining, either underground by shaft mining, or at ground level by open pit mining extraction.

Shaft mining was attempted at various locations by Rufus Sylvester and Duncan McMartin, but both recovered insufficient gold and the shafts were abandoned.

Shaft mining or shaft sinking refers to the method of excavating a vertical or near-vertical tunnel from the top down, where there is initially no access to the bottom.

The larger firms would be better able to handle labor disputes, and had the necessary capital to conduct deep shaft mining and operate the mines on a larger, more efficient scale.

Drift mining utilizes horizontal access tunnels, slope mining uses diagonally sloping access shafts and shaft mining consists of vertical access shafts.

Radebe started out as a common miner in the 1980s; managing individual shaft mining operations and producing materials for the larger mine operations in South Africa while working under a contract.