马道头煤矿小煤柱裂隙带自燃机理及防治技术

Spontaneous Combustion Mechanism and Prevention Technology of Crack Zone of Small Coal Pillar in Madaotou Coal Mine

马道头煤矿8211工作面小煤柱开采,工作面矿压较大,工作面煤柱有很多裂隙与老采空区导通,为了防煤柱裂隙与邻近采空区的自然发火,矿井提出了煤柱裂隙带的概念,提出了裂隙带也存在自然发火三带的新见解,并测试了其自然发火三带,根据测试数据,采取相应的措施有效地防止了煤柱裂隙带的自然发火。本文阐述了煤柱裂隙带自燃三带的测试方法和测试结果,介绍了煤柱裂隙带地防火的方法、参数和效果。

In the 8211 working face of Madaotou coal mine,the small coal pillar is mined,the working face has a large mine pressure,and there are many cracks in the coal pillar to guide the old goaf.In order to prevent the spontaneous combustion of the coal pillar fracture zone and the adjacent goaf,the coal mine puts forward a new idea that there are three natural combustion zones in the coal pillar fracture zone,and tests the three natural combustion zones.According to the test data,the corresponding measures are taken to effectively prevent the spontaneous combustion It stops the spontaneous combustion in the fracture zone of coal pillar.This paper describes the test methods and results of the three zones of spontaneous combustion in the fracture zone of coal pillar,and introduces the methods,parameters and effects of fire prevention in the fracture zone of coal pillar.