马元磊,贺鹏

• 1:山东钢铁集团莱芜矿业有限公司
• 2:山东科技大学

摘要(Abstract)：

谷家台铁矿深部开拓工程施工至28A断层区域,岩石破碎、节理发育、整体稳固性差,普通掘进法对顶板造成冲击破坏,冒顶现象时常发生,严重影响施工进度。分析了光面爆破的参数选取方法,明确了过断层巷道的光面技术参数,制定了光面爆破试验方案并进行实践应用。应用效果表明:该光爆技术能够维护围岩整体稳定性、有效解决断层冒顶问题,并且能够实现断层巷道顶帮壁面半孔率达到85%;通过合理炮孔布置优化,该光爆技术能够提高爆破进尺0.30 m,降低炸药单耗降低1.01 kg/m~3。

关键词(KeyWords)： 光面爆破;巷道掘进;断层;不耦合装药;间隔装药

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金青年基金(No.51909150);; 山东省重点研发计划项目(No.2019GSF111022)

作者(Author): 马元磊,贺鹏

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