摘要
基于上湾煤矿8.8 m大采高工作面的煤层赋存条件,对开采工艺对采空区漏风的影响因素进行了分析,利用示踪气体六氟化硫对工作面井上下漏风规律进行了测定分析。采取了优化通风系统、预防性区域注浆、回填堵漏等漏风管控措施,有效降低了向采空区漏入的风量,确保了工作面的安全开采。同时也为该盘区接续工作面的漏风管控工作提供了技术依据和参考。
Based on the coal seam occurrence conditions and mining technology of the 8.8 m ultra-high working face in Shangwan Coal Mine,the author analyzed the factors influencing air leakage in the goaf,and measured and analyzed the air leakage law of the working face with trace gas sulfur hexafluoride.The air leakage control measures such as optimizing ventilation system,preventive regional grouting,surface backfilling and leakage stoppage had been adopted and effectively reduced the air leakage into the goaf and ensured the safe mining of the working surface.At the same time,it also provided the technical basis and reference for the air leakage control work in the followed working surface of the plate area.
作者
吴海旭
Wu Haixu(Shangwan Coal Mine, China Energy Shendong Coal Group, Ordos, Inner Mongolia 017209, China)
出处
《中国煤炭》
2020年第7期53-57,共5页
China Coal
关键词
超大采高
漏风
示踪气体
区域性注浆
地表回填
ultra-large mining height
air leakage
tracer gas
regional grouting
surface backfill
