山东煤炭科技Issue(4)：179-180,182,3.DOI:10.3969/j.issn.1005-2801.2013.04.110
竖井安全揭穿15＃煤层综合防突技术
Comprehensive outburst prevention technique of cutting through the 15#coal seam in the Shaft
段红志 1郭朋 1刘兴1
作者信息
- 1. 山西潞安集团左权阜生煤业有限公司，山西 左权 032600
- 折叠
摘要
Abstract
According to the characteristics of soft,thick and high gas content of the 15#coal seam,the "four steps"method of uncovering coal was for-mulated in the process of cutting through the 15#coal seam in the shaft. The method of uncovering coal was implemented in the field. The field measured coal seam gas pressure was 0.42MPa,the coal seam gas content was 11.35m3/t,the gas radiation initial velocity was 22,the coal consistence coefficient was 0.3 1 and the coal damage types wasⅢ~Ⅳ,we predicted the gas outburst risk in the uncovering coal area. The measures of drilling hole were adopt-ed and 224 holes were drilled. After a month of methane drainage,we adopted the measure of distance shooting the 15#coal seam,the highest gas con-centration was 0.52%. The effectiveness of improvement measures was verified.关键词
煤与瓦斯突出/防突技术/井筒揭煤Key words
coal and gas outburst/outburst prevention technique/shaft uncovering coal分类
矿业与冶金引用本文复制引用
段红志,郭朋,刘兴..竖井安全揭穿15＃煤层综合防突技术[J].山东煤炭科技,2013,(4):179-180,182,3.
