| 极硬岩中光面爆破参数优化设计与施工 |
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| 引用本文： | 刘猛.极硬岩中光面爆破参数优化设计与施工[J].中国矿山工程,2011,40(5). |
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| 作者姓名： | 刘猛 |
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| 作者单位： | 金诚信矿业建设集团有限公司苍山项目部,山东苍山,277713 |
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| 摘 要： | 苍山铁矿围岩与矿体均属于坚硬到极坚硬岩石,在掘进过程中存在难爆破等现象.前期掘进中炮眼参数和炸药量采用不当,使得超挖欠挖的现象十分严重.为了解决这一问题,通过理论计算得到光爆基本参数后进行现场试验,通过现场试验对得到的参数进行调整和优化,将优化后的参数应用到巷道掘进中,大幅提高了巷道成形质量,降低了爆破震动对围岩的破坏,提高了巷道整体稳定性,减少了超欠挖和支护工作量,降低了施工成本,并为井下作业安全提供了可靠保障.
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| 关 键 词： | 极硬岩 光面爆破 参数优化 |
Parameter optimum design and construction of smooth surface blasting of high-hard rock |
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| Abstract: | The wall rock and ore body in Cangshan iron mine belong to high-hard rock,and it is difficult to blast in excavation process.The overbreak and underbreak were very serious because of the improper blast hole parameter and explosive charge in antecedent excavation.In order to solve this problem,the in-site test was performed after obtaining the basic parameter of smooth surface blasting based on theoretical calculation,then the obtained parameter was adjusted and optimized through in-site test,and the optimiz... |
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| Keywords: | high-hard rock smooth surface blasting parameter optimization |
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