%0 Journal Article %T Orthogonal array analysis of overburden failure due to mining of multiple coal seams %A Sui %A W. %A Zhang %A D. %J Journal of Power and Energy Engineering 电力与能源 %D 2019 %R 10.17159/2411-9717/17/036/2019 %K numerical simulation %K orthogonal array %K multiple coal seams %K water-conducting fractured zone %K caving zone. %U http://www.scielo.org.za/scielo.php?script=sci_arttext&pid=S2225-62532019001000005&lng=en&nrm=iso&tlng=en