DOI: 10.11799/ce201703018
Technology for mining face crossing collapse area in steeply inclinedweak and outburst coal seam
WANG Yi
WU Zai-sheng
XIAO Li-ping
LI Kai-xue
SONG Liu-jun
ZENG Jie
Abstract：In order to rapidly,safely and economically cross the outburst coal seam collapse area in 3101 mining face of Liziya No.2 South Mine,according to the difficult conditions of average inclination of 48°,soft roof and floor rock,120m continuous outburst collapse area,the void area was detected in floor drainage roadway,and the outburst void was treated with grouting.The application result showed that,with the construction scheme the coal mining face crossed outburst collapse area successfully,and created significant economic benefits.
Keywords：steeply inclined weak and outburst coal seamcollapse areagrouting fillingseam-crossing borehole
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：3( 60-62 )