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某煤矿放炮员贾×联完了掘进工作面的炮线后,小心翼翼地向外放着放炮母线,生怕碰上电车架线和电缆而发生触电,并引起掘进工作面炮眼的意外爆炸。但是,他刚把放炮线放到离掘进工作面80多米时,突然间“轰”的一声巨响,掘进工作面的炮眼还是提前引爆了,爆破气浪把贾×推倒,幸好爆破力不大,没有伤人。 事后,有关人员来到现场,他们看到提前引爆的是掘进工作面靠近下面的四个眼炮。在检查已放开的80m放炮母线时,发现有四处破口;距离掘进工作面约60m处的塑料绝缘轨道夹板完全浸在水坑里;100m以
After a coal mine gunner, Jia Xun, finished digging the caving face of the working face, he carefully placed the blasting bus outwards for fear of touching the trolley wire and cable and causing an accidental explosion of bore holes in the heading face. However, when he just released the blasting line more than 80 meters away from the heading face, suddenly a loud noise of “boom” led to the blasting of the working face or the blasting of blasting waves in advance. However, blasting force was not good enough No injuries. After the incident, the officers came to the scene, they saw the early detonation of the tunnel face next to the four eye cannons. In checking the release of the 80m blasting bus, found that there are four breaches; excavation face about 60m at the plastic insulated track splint completely immersed in the puddle; 100m to