Gas and Coal Outbursts in Polish Mines — Causes and Assessing Methods
The paper presents some information about gas and coal outbursts threat in polish coal mines. It shows the methodology for threat identification and monitoring for gas and coal outbursts in the Polish coal mines. One of the main methods of assessing threats in the mining industry in Poland and China is desorbometric method. The paper presents some results of estimation of uncertainties of the desorption rate Ap, determined in situ, by using of liquid manometric desorbometer gauge. It is observed that, if there are coal subgrains in desorbometer contaminator, the results of desorption rate may be even up to 60％ higher than results obtained for the normative sample. Possibly methods of the uncertainty reduction are presented in the paper as well.
gas and coal outburst sorption methane
WIERZBICKI Miroslaw
Strata Mechanics Research Institute of Polish Academy of Sciences, Reymonta Str. 27, 30-059 Cracow
国际会议
The 2nd International Conference on Mine Safety and Environment Protection(第二届采矿、安全与环境保护国际会议)
西安
英文
163-167
2011-10-10（万方平台首次上网日期，不代表论文的发表时间）