NEW DEGASSING TRENDS IN THE UNDERGROUND PARTS OF GASEOUS COAL MINES IN THE CZECH REPUBLIC

被引：0

作者：

Hudecek, Vlastimil ^{[1
]}

Urban, Petr ^{[1
]}

Cerna, Kristyna ^{[1
]}

Cermak ^{[1
]}

Dorazil, Vaclav ^{[1
]}

机构：

[1] Tech Univ Ostrava, Inst Min Engn & Safety, Ostrava, Czech Republic

来源：

11TH INTERNATIONAL MULTIDISCIPLINARY SCIENTIFIC GEOCONFERENCE (SGEM 2011), VOL I | 2011年

关键词：

Mine degasification; degasification systems; degasification boreholes; methane;

D O I：

暂无

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Coal mining is connected with many burdens, which affect mostly the safety of mining. One of the most serious problems is exhalation of methane to the mine air. This Paper describes methods used for degassing in Czech Republic's underground coal mines. Authors deal with new options and new trends in maintaining security by the means of degassing drill holes. There are two main methods Czech Republic used to prevent accumulation of the Methane gas in gaseous mines. The first method is sufficiently effective ventilation. In this case the greater the amount of fresh wind is, the thinner the concentration of methane is. The second method is extraction of methane from the rock face before the beginning of mining by the means of degassing.

引用

页码：869 / 876

页数：8