张发宇,孙思赞,肖磊,崔鹏,罗平框,朱国军,杜佳辉

• 1:云南驰宏锌锗股份有限公司
• 2:深地资源开发技术研究实验室
• 3:中南大学资源与安全工程学院
• 4:昆明冶金研究院有限公司

摘要(Abstract)：

随着采掘水平的不断加深，高地应力及复杂地质条件对巷道掘进光面爆破效果的制约愈发突出。为解决滇东北某矿超1500 m深部找探矿工程巷道掘进中出现的光面爆破成形质量差、循环进尺效率低以及爆堆大块率高等问题，在深入分析了现行掘进爆破方案的循环进尺深度与作业成本的基础上，结合深部工程区域矿岩可爆性与地应力测试结果，对现行方案的掏槽形式、炮眼布置、装药结构以及填塞方式等进行了工艺优化，并针对不同围岩等级进行了差异化爆破方案设计，Ⅲ级围岩采用“1+6”直眼掏槽替代原方案“2+6”斜眼掏槽结构，Ⅳ级围岩采用“2+6”直眼掏槽替代原方案“1+4”斜眼掏槽。现场工业试验结果表明：巷道循环进尺深度提升0.1～0.41 m,开挖断面半孔率提高至80%,炸药单耗平均降低15%,试验后爆堆大块率降低至8%。研究结果表明：采用“参数优化-工艺适配”技术体系，基于围岩条件开展分级爆破设计施工，可显著改善深部高地应力环境下的巷道掘进爆破效果，为矿山企业降本增效。研究成果为深部金属矿巷道掘进爆破提供了可借鉴的设计思路。

关键词(KeyWords)： 高地应力;巷道掘进;光面爆破;可爆性分析;工艺优化

Abstract:

Keywords:

基金项目(Foundation): 云南省基础研究计划项目(编号：202501CF070050)~~

作者(Author): 张发宇,孙思赞,肖磊,崔鹏,罗平框,朱国军,杜佳辉

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