| 磷铁矿床中深孔爆破设计方案优化研究 |
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| 引用本文： | 贺贵旺,明 建,王通潮,毛市龙.磷铁矿床中深孔爆破设计方案优化研究[J].有色金属(矿山部分),2018,70(4):46-48. |
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| 作者姓名： | 贺贵旺 明 建 王通潮 毛市龙 |
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| 作者单位： | 北京科技大学金属矿山高效开采与安全教育部重点实验室;北京科技大学土木与资源工程学院 |
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| 基金项目： | 国家自然科学基金资助项目(No.51374032) 。 |
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| 摘 要： | 针对应用无底柱分段崩落法开采的某磷铁矿床在爆破作业中存在的问题,对爆破能量的释放过程和由爆炸引起的岩石裂隙的生成过程进行了研究,进而优化了该矿无底柱分段崩落法采区中深孔内的装药结构、装药方式和起爆方式。工程实践结果表明:优化后的装药结构能够显著提高爆破对岩体的爆破效果,并有效地降低爆破大块产出率,从而能够为该磷铁矿床确定合理的中深孔爆破方案提供依据。
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| 关 键 词： | 无底柱分段崩落法 中深孔爆破 装药结构 爆破效果 |
| 收稿时间： | 2017/11/1 0:00:00 |
| 修稿时间： | 2017/11/10 0:00:00 |
Optimization study of medium-length hole blasting design in an iron-phosphate Mine |
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| Authors: | HE Guiwang MING Jian WANG Tongchao and MAO Shilong |
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| Affiliation: | School of Civil and Resource Engineering,University of Science and Technology Beijing,School of Civil and Resource Engineering,University of Science and Technology Beijing,School of Civil and Resource Engineering,University of Science and Technology Beijing,School of Civil and Resource Engineering,University of Science and Technology Beijing |
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| Abstract: | According to problems of the blasting operation of caving with non-pillar sublevel caving mining method in the iron phosphate mine, the study of the energy release process of explosive blasting and the process of rock fracture caused by blasting are carried out and then the charge structure and the explosive detonation mode are optimized. The industrial test results show that the blasting effect on the ore rock is improved and the blasting boulder yield is lowered by using the charge structure of explosive. Study results can provide the support for the explosive blasting design of the iron phosphate mine. |
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| Keywords: | non-pillar sublevel caving mining method medium-length hole blasting charge structure of explosive blasting effect |
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