Document Type

Conference Paper

Publication Date


Publication Details

S. Tu, F. Wang, Y. Lu, Q. Wu, Q. Bai, Practice and Prospect of Fully Mechanised Mining Technology for Thin Coal Seams under Complex Conditions in China, 11th Underground Coal Operators' Conference, University of Wollongong & the Australasian Institute of Mining and Metallurgy, 2011, 22-28.


In China, thin coal seam are rich in resources and complex in conditions, however, the characteristics such as narrow mining space, the low level of mechanised technology, bad workingenvironment and the high cost of mining, directly restrict the development of mining safety andhigh-efficiency. In thin coal seams with hard gangue which contains concretions of pyrite, LS-DYNA isapplied to calculate the rational blasting parameters and carry out the deep-hole pre-splitting blastingtechnology, the hard gangue is fractured effectively, hence advancing the productivity of thin coal seammining. In addition, the mining rate is speeded up in thin protective layers in extreme close coal seams byenhancing the level of fully mechanised equipment and other effective measures. Safety andhigh-efficiency mining can be realised in the outburst coal seam. Thin coal seam mining technology facesmany problems presently, i.e. the low level of equipment automation, the low advance rate of mixedcoal-rock drift, and the big intensity of worker labour. By lowering the labour intensity, improving theefficiency by means of advancing mining automatic equipment and other measures, respectively, thusmanless working faces can be successfully realised in thin coal seam mining.