DOI: 10.11799/ce202312001
Optimization design of rock burst prevention and control in cooperative mining of double coal seams
SUN Zhenyu
BAI Jinzheng
YU Bo
XU Jigen
LU Anliang
WU Zhidong
Abstract：Aiming at the problems in optimization design of regional prevention and control of rock burst in cooperative mining of double coal seams,based on the specific engineering conditions of Taohutu Coal mine in Nalinhe Mining area,the problems in the current mining design scheme is found,such as unreasonable selection of protective layer,wrong opening or stop-mining line,some areas are located outside the protection range,loss of triangular coal,adverse recovery of protective coal pillar in the late main roadway and too concentrated mining in the early stage of the mine.In view of the above problems,from the perspective of rock burst prevention and control,it's proposed to mine 2-2 coal seam as the protective seam of 3-1 coal,and make adjustments to the layout of roadway and working face,and give the optimization design scheme of cooperative mining of single wing and double wing coal seam,which can avoid the problems existing in the current mining design scheme.Based on mine geology and mining technical conditions,combining with relevant standards and specifications,the reasonable fault distance and lag distance of cooperative mining of two coal seams in mine are calculated:the reasonable dip fault distance is 30 m,the strike fault distance is 47 m,and the working face of 3-1 coal seam should lag 1200 m behind the working face of 2-2 coal seam.
Keywords：rock burstregional rock burst preventionprotective seammulti-seam miningmine design
Publication Date：2023-12-20
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 1-4 )