alexa Abstract | Spectrum analysis of controlled blasting vibration

Journal of Chemical and Pharmaceutical Research
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Abstract

Accurate delay blasting with electronic detonator can be used to make the main band frequency of energy distribution move towards high-frequency and the distribution trend will be more homogenized when foundation excavation of deep hole controlled blasting used in the complex environment. The method of EEMD (Ensemble Empirical Mode Decomposition) can be used to signal analysis, then analyze the main band frequency of blasting vibration energy distribution, which illustrate that blasting main frequency band of vibration energy appeared in 15 - 45Hz. Blasting vibration energy distributed in the frequency band below 10Hz less than 4.5% of the total energy of the following, which effectively avoided the low-frequency vibration damage of buildings.

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Author(s): Zhenyang Xu Yanning Yu LianjunGuo and Daning Zhang

Keywords

WSN blasting vibration, Electronic detonators, accurate delay, EEMD

 
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