采用流场理论确定采空区内自然发火火源点位置

Determination of positions of Natural Combustion Source Points in Waste Areas by Flow Field Theory

把采空区视为连续孔隙介质,采用流场理论建立起采空区气体流动及火灾标识气体CO浓度分布的数学模型,模拟出“浅煤层有地表漏风采空区”、“厚煤层分层同采采空区”以及“厚煤层分层分采采空区”内自然发火火源点位置分布规律。

Taking waste areas as pore media, a mathematical model of gas flowing and fire mark gas CO concentration distribution in the waste areas was established by the flow field theory. The model simulated the distribution rules of natural combustion source point positions in ＂ surface air leakage waste area in shallow coal seam＂, ＂waste area of thick coal seam mined simultaneously by layers＂ and ＂waste area of thick coal seam mined respectively by layers＂,