| 高应力下中深孔爆破振动传播规律及动态应力比安全判据研究 |
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| 引用本文： | 班克海,王 贺.高应力下中深孔爆破振动传播规律及动态应力比安全判据研究[J].有色金属(矿山部分),2015,67(5):81-84. |
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| 作者姓名： | 班克海 王 贺 |
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| 作者单位： | 广西华锡集团集团股份有限公司铜坑矿，广西 河池 547207,正威国际集团有限公司，深圳 518040 |
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| 摘 要： | 以某铜锌矿中深孔大爆破为依托,通过现场爆破振动监测收集了大量爆破振动数据和波形信息,通过拟合进行回归分析,得出某铜锌矿高应力下中深孔爆破振动传播规律,并通过动态应力比判据判断爆破振动对地下结构的危害程度,为矿山确定最大段药量的选取提供科学的依据和保障,为同类矿山设计和施工提供可靠的指导。
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| 关 键 词： | 爆破振动 传播规律 动态应力比 安全判据 |
| 收稿时间： | 2015/3/24 0:00:00 |
| 修稿时间： | 2015/3/27 0:00:00 |
Study on spread law of blasting vibration with medium-length hole under high stress and safety criterion based on dynamic stress ratio |
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| Authors: | BAN Kehai and WANG He |
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| Affiliation: | Tongkeng Mine, China Tin Group Co., Ltd., Hechi Guangxi 547207, China and Zhengwei International Group Co., Ltd., Shenzhen 518040, China |
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| Abstract: | Based on the support of blasting with medium-length hole in a copper-zinc mine, a lot of measured data and vibration wave signals are collected. Through the regression analyses by fitting, spread law of blasting vibration with medium-length hole under high stress is acquired. Finally, blasting vibration damages to the underground structures through the safety criterion based on dynamic stress ratio are estimated. This can provide scientific basis and safeguard for determining the maximum charge weight per delay interval in the mine. Also, this can provide a reference for the design and implementation of blasting in similar underground mines. |
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| Keywords: | blasting vibration spread law dynamic stress ratio safety criterion |
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