Tóm tắt:

Methane occurs in mineral deposits íormed in general deposits and coal mines in particular. Especially in underground coal mining, methane gas is considered the most dangerous gas because it occurs everyvvhere in coal mines and is very easy to cause fire and explosion. Methane fires, explosions in the pits will produce a íot of CO, C02l... and many other toxic gases accompanied by high temperatures, endangering people and machinery in the mine. Mông Dương is one of the deepest underround coal mines in Vietnam, with a poteníial methane potential because the methane content in the coal seams tends to increase in depth. The paper is based on the results of the methane content at the ỉeveỉ that the mines exploited and builds a methane gas intensity prediction graph based on the least-squares method of the Excel software. It then provides íorecasts of gas content at the coal seams at the depths that the mine will exploit in the íuture for the Mông Dương coal mine. From that result, the mine has appropriate implementation plans to ensure the saíety of exploitation.