Tóm tắt:

The paper has studied, analyzed and evaluated the geological conditions of the mine, the technology characteristics of the exploit-hold heading, determine the dust concentration, temperature, humidity, wind speed in the face heading and Proposed appropriate solutions to reduce the amount of dust, improving microclimate conditions (temperature, humidity and wind speed). Particularly, the research results have been 1 applied for the brake incline at 31152 at Nui Beo Coal Mine and bring about positive results, reduce the concentration of dust in the face heading to the limit allowed by QCVN 05:2013/BTNMT and improving microclimate conditions in the face heading, to ensure the National Cods on safety in underground coal mining QCVN 01: 2011/BCT.