| 井下大爆破直通巷道冲击波超压的预测研究 |
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| 引用本文： | 骆浩浩,李祥龙,王建国,李广涛,李在利.井下大爆破直通巷道冲击波超压的预测研究[J].中国安全科学学报,2019(3):57-62. |
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| 作者姓名： | 骆浩浩 李祥龙 王建国 李广涛 李在利 |
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| 作者单位： | 昆明理工大学国土资源与工程学院;云南省中-德蓝色矿山与特殊地下空间开发利用重点实验室;云南农业大学建筑工程学院;玉溪矿业有限公司技术管理部 |
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| 基金项目： | 国家自然科学基金资助(51564027);北京理工大学开放基金资助(KFJJ15-14M);云南省科技厅基础研究青年项目(2016FD029) |
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| 摘 要： | 为减小爆破冲击波对井下人员和设备的影响,利用NUBOX-9012爆破冲击波智能监测仪及配套的冲击波传感器监测爆炸冲击波现场,并运用有限元软件ANSYS/LS-DYNA模拟爆破冲击波在直通巷道内的衰减过程,提取数值计算的结果,经数据拟合得到一端开口的直通巷道冲击波超压预测公式中的未知系数b1、b2和b3,将直通巷道内不同药量、不同距离处的原始数据代入冲击波超压预测公式得到巷道超压峰值,并与实测值对比。结果表明:预测误差在合理范围内,该冲击波超压峰值预测公式适用于预测井下直通巷道的冲击波超压峰值。
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| 关 键 词： | 爆破冲击波 直通巷道 NUBOX-9012监测仪 数值模拟 衰减规律 |
Study on peak overpressure prediction of underground blasting shock waves on straight-through roadways |
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| LUO Haohao,LI Xianglong,WANG Jianguo,LI Guangtao,LI Zaili.Study on peak overpressure prediction of underground blasting shock waves on straight-through roadways[J].China Safety Science Journal,2019(3):57-62. |
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| Authors: | LUO Haohao LI Xianglong WANG Jianguo LI Guangtao LI Zaili |
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| Institution: | (Faculty of Land Resources Engineering, Kunming University of Science and Technology, KunmingYunnan 650093, China;Yunnan Key Laboratory of Sino-German Blue Mining and Utilization ofSpecial Underground Space,Kunming Yunnan 650093, China;College of Civil and ArchitecturalEngineering, Yunnan Agricultural University, Kunming Yunnan 650201, China;TechnologyManagement Department, Yuxi Mining Co., Ltd., Yuxi Yunnan 653405 , China) |
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| Abstract: | In order to reduce the impact of blasting shock waves on underground personnel and equipment,studies were conducted by using the NUBOX-9012 intelligent blasting shock wave monitor and the matched shock wave sensor to monitor the explosion shock wave on site and using the finite element software ANSYS/LS-DYNA to simulate the attenuation process of blasting shock waves on the straightthrough roadway. The results of numerical calculations were extracted,the unknown coefficients b1,b2,and b3 in the formula for shock wave peak overpressure prediction on straight-through roadways with one end opening were acquired,and the calculated value was obtained by substituting the original data of different doses at different distances into the prediction formula as compared with the measured value. The results show that the prediction error is within reasonable limits,and the prediction formula are applicable to the prediction of the peak overpressure of shock waves on straight-through roadways. |
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| Keywords: | blasting shock wave straight-through roadway NUBOX-9012 monitor numerical simulation attenuation law |
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