This study proposes an incremental extreme extraction method based on the waveform characteristics of ground vibration signals obtained from open-pit mines to investigate distribution and deep-hole blasting. Firstly, is proposed borehole blasting in mines. The could extract screen values effectively improve utilization rate data. space vector particle introduced analyze angle change between vel...

In the process of tunnel excavation, blasting technology is one commonly used excavation methods. The mainly divided into smooth and presplitting blasting. blasting, in order to prevent excessive damage caused by explosive often carried out means uncoupled charging. previous studies, blast hole were placed concentrically, while actual engineering, charge exists form eccentricity. this study, LS...

The blast vibration attenuation will change as the tunnel cut hole is blasted to create a new free surface. To guarantee safe construction and optimize design parameters, it crucial understand impact of surface on attenuation. Previous studies have often only qualitatively evaluated effect vibration, failing quantify these impacts In this paper, by analyzing decay law velocity under different s...