DOI: 10.11799/ce201602002
Mining scheme design for extremely thick coal seam of Zhundong No 2 coal mine in East Junggar coalfield
SUN Xiao-dong
MA Zhao-rui
HU Yun-fei
Abstract：Aiming at the problems of extremely thick coal seam mining in East Junggar Coalfield, comparative analysis was conducted for layered fully mechanized high cutting mining, combination of layered fully mechanized high cutting and top coal caving, and layered fully mechanized top coal caving, the result showed that the 3rd method should be selected for B1 seam, with a reasonable coal cutting height of 5?0m or less, which can be divided into three layers, to reduce opening of the coal seam and the risk of spontaneous combustion in goaf. And prevention measures should be taken for mining overburden control, spontaneous combustion, gas, equipment reliability and other issues.
Keywords：East Junggar Coalfieldextremely thick coal seammining methodslayered caving
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：3( 5-7 )