问题 |
E3S网页汇编
卷积3292021
4线程绿色能源和可持续发展问题国际会议 |
|
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文章号 | 01089 | |
页数 | 5 | |
多尔市 | https://doi.org/10.1051/e3sconf/202132901089 | |
在线发布 | 2021年12月9日 |
预抽出消除技术研究
一号重庆研究院中国煤技术工程集团有限公司
2安徽科技大学华南232001
3天然气灾难监控急救技术国家密钥实验室
*对应作者 :2012156@cqccteg.com
Aiming at the problem of gas control in the working face and the roadway to be excavated at the same time due to the small construction length of bedding borehole under the condition of the occurrence of soft coal, a technology of "one hole and two elimination" pre-drainage to eliminate gas outburst by using air screw motor drilling was put forward, and the field test was carried out in the 17102(3) working face of Pansu Coal Mine.The results show that this technology can effectively control the borehole trajectory, ensure the uniform and reasonable range of borehole outburst elimination, solve the problems of long gas treatment cycle caused by the construction of gas treatment roadway, improve the effective drainage time of borehole, ensure enough time and space for gas treatment, and be beneficial to the mining and replacement of mine.
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