基于VMD-HHT的井下预裂爆破振动效应分析
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李祥龙,余林,黄原明,陈浩,赵艳伟
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Vibration Effect Analysis of Downhole Pre-splitting Blasting Based on VMD-HHT
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Xianglong LI,Lin YU,Yuanming HUANG,Hao CHEN,Yanwei ZHAO
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表1 常规大爆破实测数据
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Table 1 Measured data of conventional large blasting
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测点编号 | 单响药量Q/kg | 爆心距R/m | 振动速度V/(cm·s-1) |
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水平径向 | 水平切向 | 垂直方向 | 合速度 |
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1 | 1 210 | 32 | 5.975 | 6.565 | 8.402 | 12.223 | 2 | 1 210 | 60 | 4.695 | 3.753 | 5.373 | 8.062 | 3 | 1 210 | 104 | 1.471 | 2.834 | 1.622 | 3.581 | 4 | 1 210 | 153 | 1.398 | 1.07 | 1.557 | 2.350 | 5 | 1 210 | 201 | 1.209 | 0.953 | 0.845 | 1.756 | 6 | 909 | 57 | 5.756 | 4.852 | 6.712 | 10.086 | 7 | 909 | 107 | 4.258 | 3.915 | 3.853 | 6.950 | 8 | 909 | 151 | 1.182 | 1.187 | 1.570 | 2.296 | 9 | 909 | 199 | 1.069 | 0.663 | 0.830 | 1.507 |
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