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一、事故前的概况该事故发生在辽源矿务局太信矿一井14路半二石门1571准备区。该区位于井田边界与旧采区1521区相联。新区煤库的掘进在1521区旧区溜子道底板穿过,高低差为28m。旧区1521煤库也在14路半运输大巷一、二石门间,距离1571区新煤库50m 处(已封闭)。旧区的情况是,1521煤库由大巷向上倾斜45°,斜长45m,煤库口上为18m 发旋,18m 向上为木支架,另一侧有人行道,封闭时下货口充砂,筑永久密闭一道,排风则为材料道设密闭一道。该区因自然发火于7月
First, the pre-accident situation The accident occurred in Liaoyuan Mining Bureau Taixin mine a well 14 Road half Shihmen 1571 preparation area. The area is located at the minefield boundary and the old mining area 1521 associated. New District coal mine tunneling in the old district 1521 sub-district through the road, the height difference of 28m. The 1521 coal mine in the old area is also located between the first and second stone doors of the 14-lane semi-transportation alley, 50m away from the new coal pool in the 1571 area (closed). In the old area, the 1521 coal yard was tilted upwards by 45 degrees from the main road, with an inclined length of 45m and a 18m rotation on the coal mine mouth, with 18m upwards wooden support and a sidewalk on the other side. Sealed together, the exhaust duct is a closed set of materials together. The area was spontaneously angry in July