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Practice of Hydraulic Flushing of Coal Lane Near Rapid Control Technique
Author(s): 
Pages: 66-67
Year: Issue:  2
Journal: Coal

Abstract: 孟津煤矿主要井底车场在二1、二2煤层之间,两煤层都属于突出煤层,煤层间距只有17m,在矿井施工过程中经常遇见大巷距离煤层过近(小于5 m)的问题.<防治煤与瓦斯突出规定>第21条要求:所有突出煤层外的掘进巷道(包括钻场等)距离突出煤层的最小法向距离小于10 m时,必须边掘边探,确保最小法向距离不小于5 m.孟津煤矿的大巷不能满足此规定的要求,必须采取防突措施并经效果检验无突出危险性之后方可掘进.传...
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