28112工作面采前瓦斯抽采安全评价
任重先
（山西省长治经坊煤业有限公司，山西 长治 047100）
摘要： 针对28112 工作面瓦斯浓度较高且存在突出危险等问题，通过进行瓦斯涌出量预测得出28112 工作面绝对瓦
斯涌出量约为24 m3/min，综合分析后采用本煤层抽采+ 上邻近层抽采+ 上隅角抽采方法治理瓦斯。最后对28112 工作
面防突措施进行了设计，利用直接测定法得出残余瓦斯含量最大值为5.209 2 m3/t，可以进行安全开采。
关键词： 瓦斯涌出量；抽采技术；直接测定法；安全评价
中图分类号： TD712⁺.6     文献标志码： A     文章编号： 2095-0802-(2020)09-0009-02
Safety Evaluation of Gas Drainage before Mining in 28112 Working Face
REN Zhongxian
(Changzhi Jingfang Coal Industry Co., Ltd. of Shanxi, Changzhi 047100, Shanxi, China)
Abstract: Aiming at the problems of high gas concentration and outburst danger in 28112 working face, the absolute gas emission
of 28112 working face was about 24 m3/min through gas emission prediction. After comprehensive analysis, the method of
coal seam drainage + upper adjacent layer drainage + upper corner drainage was adopted to control gas. Finally, this paper
designed the outburst prevention measures of 28112 working face, and the maximum residual gas content was 5.209 2 m3/t by
direct measurement method, which proved that it could be mined safely.

Key words: gas emission; extraction technology; direct measurement method; safety evaluation