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Banji Coal Mine Shaft Bottom Comprehensive Prevent Water Practice
Author(s): 
Pages: 31-33
Year: Issue:  5
Journal: Coal

Abstract: 板集煤矿-735 m石门自东向西将穿过BF34、BF33、BF33-1、F512断层,并且断层将太原组C13抬升至距-735 m水平最近仅20 m左右;另外,东部边界F12断层距外水仓最近距离仅80 m.断层的赋存形态、断层带含、导水性对井底车场大巷的安全掘进具有决定性影响.通过在地面布置钻探工程,对断层进行控制,并利用地面钻孔对断层带进行预注浆,初步进行堵水加固;在井下留足安全距离,采取物探、钻...
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