基于VMD-HHT的井下预裂爆破振动效应分析
李祥龙,余林,黄原明,陈浩,赵艳伟

Vibration Effect Analysis of Downhole Pre-splitting Blasting Based on VMD-HHT
Xianglong LI,Lin YU,Yuanming HUANG,Hao CHEN,Yanwei ZHAO
表3 预裂爆破减振效果分析
Table 3 Pre-splitting blasting vibration reduction effect analysis table

测点

编号

爆心距R/m单响药量Q/kg振动速度/(cm·s-1

减振率

/%

无预裂缝有预裂缝
2641 4047.8006.16221.0
31151 4043.9522.76130.1
41591 4042.7141.66938.5