regarding gold, diamond, asbestos, copper, iron ore, tin and coal mining, etc., makes projections with respect to future labour …

factor productivity in Australian coal mining over the period 2000/2001–2006/2007. The decline coincides with a period of … rapidly increasing global demand for, and price of, coal, which has made it economically feasible to mine coal that was … estimated decline has motivated our investigation of productivity in Australian coal mining, its financial implications and its …

economic viability of such underground UPSHP power plants in closed down coal mines. First, we examine the topic from a …

buildings), and such hazards are particularly serious in coal mining districts. Injecting grout into the bed separation in the … longwall mining under villages in the Liudian coal mine, China. The maximum surface subsidence observed after the extraction …

In response to the severe situation of coal mine gas disaster in China, a new method of reducing the danger of coal and … gas outbursts and improving gas drainage and utilization in coal mines was introduced in this paper. The main idea of this … method is to mining thin sub-layer as self-protective coal seam to eliminate or reduce the danger of coal and gas outburst …