摘要
为防止和抑制小煤柱以及采空区煤炭自燃,应用能位测定法和SF6示踪技术研究了谢桥煤矿11煤1222(1)孤岛工作面小煤柱及相邻采空区的漏风状态。通过能位测定研究了谢桥煤矿11煤1222(1)工作面存在的可能漏风路径,在此基础上,利用SF6示踪技术确定了工作面采空区的漏风状况。测定结果表明:1222(1)回风巷段7 m宽小煤柱整体状态较好,漏风情况不明显,漏风主要由1222(1)工作面采空区流向1212(1)工作面采空区。该研究结果可为防止和抑制小煤柱及采空区煤炭自燃提供参考。
In order to prevent and suppress the coal spontaneous combustion in narrow coal pillar and gob, the energy leveltest method and SF6 tracer technique were applied to study the air leakage of the narrow coal pillar and the adjacent gob of1222（1） island working face of No. 11 seam. The possible air leakage paths in this working face were studied with the energylevel test method, based on this, the air leakage of the gob of this working face was determined with SF6 tracer technique. Theresults showed that the 7 m-wide coal pillar in the air-return way of 1222 （1） working face was in a good state, air was mainlyleaked from the gob of 1222 （1） working face to the gob of 1212 （1） working face. The research results can provide referencefor the prevention and suppression of coal spontaneous combustion in the narrow coal pillar and gob.
出处
《矿业安全与环保》
北大核心
2016年第5期41-44,共4页
Mining Safety & Environmental Protection
基金
国家自然科学基金项目(51574009)
关键词
能位测定法
SF6示踪技术
孤岛工作面
小煤柱
漏风
energy level test
SF6 tracer technique
island working face
narrow coal pillar
air leakage
