Research on the Forecast of Outburst Danger in Crosscut Exposing
The outburst in crosscut exposing is known as one of the heaviest in coal mine. So it is necessary to be forecasted before exposed. This is always the key work of preventing outburst in coal mine. Based on the research of the theory of outburst danger forecast in crosscut exposing, the paper took the on-site case in Zhangji Coal Mine of Huainan Mining Group. The drills were arranged reasonably before exposing, and then the parameter ΔP and f were measured in laboratory. So the danger of coal and gas outburst was forecasted by the comprehensive index method. If that was the danger face, the prevention measures should be taken according to regulations. When excavating got to the vertical distance of 5 and 3 m to coal seam, the boreholes were used to release pressure and to drainage gas. Then, it was tested by measuring the parameter k1 and ΔP. The exposing went on after it was out of danger. In a word, as the multi-parameter indexes were used to forecast the outburst danger during the crosscut exposing, the safety were improved.
Li zhong-qing Liu Ze-gong
Institute of Resource and Safety, Anhui University of Science and Technology, Huainan 232001, China
国际会议
International Mining Forum 2010(2010年国际采矿论坛 IMF 2010)
合肥
英文
4-7
2010-09-20（万方平台首次上网日期，不代表论文的发表时间）