期刊名称:IOP Conference Series: Earth and Environmental Science
印刷版ISSN:1755-1307
电子版ISSN:1755-1315
出版年度:2018
卷号:170
期号:2
页码:022034
DOI:10.1088/1755-1315/170/2/022034
语种:English
出版社:IOP Publishing
摘要:Most and local minable seam in mining field has seven layers, according to the label from top to bottom in turn as follows:13, 12, 10, 9, 8-3, 8 -2, 8-1. coal, total minable seam thickness of 21.92 m, dip angle of coal seam located between 4° and 24°, is nearly horizontal seam. The average thickness is 116.48m. Given the existence of tertiary pore fissure aquifer, in order to predict effectively the impact of the aquifer on site production when seven layers of coal are mined, this paper uses FLAC3D numerical simulation for comparative analysis of the coal mining water fractured zone height, which determine the safe mining boundary thereby provide theoretical guidance for the field working face layout, mining area connection and other safety production.