• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Advances in civil engineering >Frequency Spectrum and Wavelet Packet Analyses of Blasting Vibration Signals for Different Charge Structures in Blasting Peripheral Holes
【24h】

Frequency Spectrum and Wavelet Packet Analyses of Blasting Vibration Signals for Different Charge Structures in Blasting Peripheral Holes

机译：用于爆破外围孔的不同电荷结构的爆破振动信号的频谱和小波分组分析

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Based on the blasting principle of the cutting seam cartridge, smooth blasting with the charge structures of the usual cartridge and cutting seam cartridge has been designed and implemented, respectively, for different peripheral holes in the same face. Meanwhile, the blasting vibration has been monitored. Through the analysis of the frequency spectrum of blasting vibration signals, it is found that the maximum blasting vibration velocity of the cutting seam cartridge charge is lower than that of the usual cartridge charge, from 0.21?m/s to 0.12?m/s. Moreover, the blasting energy distribution is more balanced. Especially in the low-frequency part, the blasting energy is less, and there is a transferring trend to the high-frequency part, which shows that the cutting seam cartridge charge has a better optimization effect. Furthermore, using wavelet packet analysis, the cutting seam cartridge charge could effectively reduce the energy concentration in the low-frequency part. The energy distribution is much more dispersed, and the disturbance to the structure could be less, which is conducive to the stability of the structure. According to the blasting effect, the overbreak and underexcavation quantity at the cutting seam cartridge charge is better than that at the usual cartridge charge.
机译：基于切削缝盒的爆破原理，分别设计和实施了平常的盒和切割缝盒的电荷结构，用于同一面部的不同外围孔设计和实施。同时，监测爆破振动。通过对爆破振动信号的频谱的分析，发现切割缝盒充电的最大爆破振动速度低于通常的盒充电，从0.21μm/ s到0.12？m / s。而且，爆破能量分布更加平衡。特别是在低频部分中，​​爆破能量较少，并且存在于高频部分的转移趋势，这表明切割缝盒充电具有更好的优化效果。此外，使用小波分组分析，切削缝盒充电可以有效地降低低频部件中的能量浓度。能量分布得多，并且对结构的干扰可能较少，这有利于结构的稳定性。根据爆破效果，切削缝盒充电的悬垂和悬而未度的量优于通常的墨盒充电。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号