煤矿安全2019，Vol.50Issue(12)：140-143,4.DOI:10.13347/j.cnki.mkaq.2019.12.032
基于邻空巷钻孔技术的特厚煤层均压工作面采空区自燃"三带"研究
Study on Spontaneous Combustion"Three Zones"in Gob Area of Pressure Equalizing Working face in Super Thick Coal Seam Based on Drilling Technology
孙珍平1
作者信息
- 1. 煤科集团沈阳研究院有限公司,辽宁 抚顺113122;煤矿安全技术国家重点实验室,辽宁 抚顺 113122
- 折叠
摘要
Abstract
To solve the problem of "three zones"test of spontaneous combustion in goaf of super-thick spontaneous combustion coal seam, this paper takes the goaf of 8207 working face in Tongxin Coal Mine as the research background, uses borehole construction in the roadway adjacent to the goaf, and obtains oxidation band width within the range of 30 m to 184 m by means of gas sampling analysis in different depths of borehole. The results of "three zones"test of goaf under the conditions of uniform pressure ventilation(8207 face)and negative pressure ventilation(8100 face)are compared and analyzed. The results show that"three zones"in goaf are obviously "drifting"and the width of oxidation zone is "widened"after pressure equalization on 8207 surface. The distribution distance of goaf in 8207 fully mechanized top coal caving face is optimized, and the hidden danger of goaf ignition during the stoping of 8207 face is effectively controlled.分类
矿业与冶金引用本文复制引用
孙珍平..基于邻空巷钻孔技术的特厚煤层均压工作面采空区自燃"三带"研究[J].煤矿安全,2019,50(12):140-143,4.
