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1982年6月29日14点30分,安阳矿务局龙山煤矿东四采区的422下顺槽掘进工作面,由于放炮引起了一次煤与瓦斯突出现象,突出点垂深211米,强度38吨,瓦斯涌出量7305米~3。 一.基本情况 东四采区422下顺槽是沿着煤层顶板掘进的煤巷,煤5.6米,层厚属山西组1-1(也煤称大煤)。掘进中遇见小正断层群,断层落差一般为1.0～2.5米。顺槽从煤巷进入半煤巷,再进入煤巷。为梯形断面,净断面37.8米~2,用木支架支护,每米2～3棚,采用一台28千瓦轴流式局扇通风,吸入风量525米~3/分,掘进头有效风量为300米~3/分。
At 14:30 on June 29, 1982, Allianz Mining Bureau, Longsheng Coal Mine, Dongsai mining area under 422 along the slot heading face, due to blasting caused by a coal and gas outburst phenomenon, the highlight point down 211 meters deep, the intensity of 38 Ton, gas emission 7305 meters ~ 3. First, the basic situation Dongsai mining area 422 along the trough is along the coal seam heading coal roadway, coal 5.6 meters, layer thickness of Shanxi group 1-1 (also called coal coal). Excavation encountered small normal fault group, the fault drop is generally 1.0 to 2.5 meters. Trough slot from the coal into the semi-coal lane, and then into the coal lane. For the trapezoidal cross-section, the net section of 37.8 m ~ 2, with wood bracket support, 2 to 3 m per shed, using a 28 kw axial fan ventilation, air intake 525 m ~ 3 / min, 300 m ~ 3 / min.