To study the rock-breaking mechanism resulting from high-pressure gas blasting, a hybrid
continuum-discontinuum method considering the actual breakage of rocks was presented in …

Through a tunnel-blasting project, the effect of tunnel-blasting vibration has been analyzed
from the perspective of vibration energy transfer. The non-linear regression method was …

Deep-hole blasting, characterized by large diameter and long charge length, is a prevalent
practice in large-scale underground mining. However, the increasing charge length in each …

The high-pressure gas combined with the action of the stress wave has a significant effect to
drive fractures and enhance fragmentation in CO 2 blasting. Modelling the whole process …

Based on blasting engineering experience, the damage degree model of a blasting
pressure relief zone is constructed. The energy conservation principle is applied in the …

The study proposes a denoising method based on Complete Ensemble Empirical Mode
Decomposition with Adaptive Noise (CEEMDAN) and Wavelet packet threshold denoising …

Blasting vibration could cause dynamic instability of rock masses within a critical steady
state. To control the blasting vibration, it is necessary to understand the complete dynamic …

Field and rock-like materials model tests are carried out to analyze the cumulative damage
law of tunnel surrounding rock and watery fractured rock under multiple cycle blasting. A …

Current rock mass quality classification methods include the rock mass rating (RMR), the Q
system, the geological strength index (GSI) and the basic quality (BQ) system. Among these …

Surface ground motion produced by underground blasts is significantly influenced by near-
surface geological conditions. However, near-surface low-propagation velocity layers were …