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掘進巷道貫通其它地點時的安全措施

作者:煤礦安全網 2019-10-11 22:49 來源:煤礦安全網

掘進巷道貫通其它地點時的安全措施

與其它巷道貫通距離20M時只能單頭掘進,加固被穿巷道貫通點的支護,停止另一頭巷道的掘進,并打上攔栓、揭示警標并搞好日常瓦斯濃度檢查,警戒點設置在被貫通點前后50M,的地方,被貫通點的瓦斯濃度不得超過1%,保持被貫通點巷道的正常通風。煤層巷道距貫通點5M時不準放炮,只準手工挖煤貫通,巷道貫通前每班由安全員、瓦檢員檢查被貫通點進行安全巡回檢查。

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