The Junlian mining area is located in the core area of a major coal basin in the southern Sichuan,the study area is located in the eastern end of the Junlian mining area.This paper mainly focuses on the comparison of the Upper Permian Xuanwei Formation coal seams in the study area,including the marker layers,coal seams themselves,roof and floor characteristics,lithology,lithofacies,nodule and physical characteristics,and geophysical characteristics of coal.Based on the physical combination of coal and rock strata,this paper mainly analyse of the No.8-2 coal seam,which improves the reliability of the comparative study of the No.8-2 and other coal seams within the study area.It is considered that No.8-1 and No.8-2 coal seams are relatively stable and can be mined in the whole area,while the No.7 coal seam is relatively stable and can be mined in the most of the minable coal seams,and No.9 coal seam is unstable and can only be mined in certain parts.
Junlian mining areaLuobiaophysical characteristicscomparative study
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