Dynamic mechanical properties of different types of rocks under impact loading

Z Wang, J Huang, Y Chen, X Li, T Liu, F Meng - Scientific Reports, 2023 - nature.com
To study the mechanical properties of different types of rocks under impact loading, static
mechanical parameter tests and split-Hopkinson pressure bar (SHPB) dynamic impact …

[HTML][HTML] Analysis of factors influencing vibration reduction and design optimization of damping holes in adjacent tunnel blasting

X Guan, Y Yao, N Yang, H Xu, B Xin, B Li - Case Studies in Construction …, 2023 - Elsevier
Drilling and blasting is still the most widely used method for tunnel excavation in hard rocks.
However, this method causes damage to adjacent buildings and structures mainly because …

Experimental and numerical investigation on rock fracturing and fragmentation under coupled static pressure and blasting

K Liu, X Li, J Yang, Z Zhou, Y Sha, Z Hong - Engineering Fracture …, 2024 - Elsevier
The blasting technique is widely adopted to break rock in civil and mining engineering, and
its operation is generally subjected to static pressure due to tectonic and gravitational …

Empirical scaling of formation fracturing by high-energy impulsive mechanical loads

W Cao, RM Younis - International Journal of Rock Mechanics and Mining …, 2024 - Elsevier
Recent technological advances to trigger high-energy seismic waves from within the
wellbore have spurred interest in their potential application to induce fracturing within deep …

Experimental study on the interaction mechanism of two dynamic cracks under blasting loading

L Peng, Z Yue, X Wang, J Zhou - … Journal of Rock Mechanics and Mining …, 2024 - Elsevier
In this study, dynamic photomechanical blasting experiments were conducted to investigate
the interaction mechanisms of dual cracks induced by explosions at different relative …

Development and Validation of Universal 3D Blast Fragmentation Model

V Lapčević, S Torbica, M Stojanović, I Vojinović - Applied Sciences, 2023 - mdpi.com
The dominant technology in hard rock mining is drilling and blasting; therefore, the
importance of fragment size estimation is an essential problem in the mining industry. By …

A feasible approach for engineering-scale 3D blasting numerical modelling incorporating explosive charges and layout design

YM Hao, XD Wei, Q Li, GF Zhao - Computers and Geotechnics, 2024 - Elsevier
The complexity of blasting designs and the extensive computational cost pose significant
challenges in accurate prediction using three-dimensional numerical methods. This paper …

A hybridized continuum-discontinuum modeling for investigating the fracture and energy evolution characteristics of rock mass under sequential explosive detonation …

Q Lin, X Zhu, J Yuan, C Feng, Y Gan, W Jiao… - Computers and …, 2023 - Elsevier
Modelling the dynamic mechanical response of rock mass under sequential explosive
detonation, especially the fracture and energy evolution characteristics, is the key to …

Research on Blasting Damage Control of 90° Slit Charge Structure

C Xiao, G Shi, Z Zhao, C Ding - Mining, Metallurgy & Exploration, 2024 - Springer
This study investigates the directional blasting of a 90° slit charge structure using laboratory
experiments and field tests. A 90° slit charge suitable for the corner of roadway is proposed …

Predicting Single-hole Blast-induced Fracture Zone Using Finite Element Analysis

JU Rehman, D Park - Journal of the Korean GEO-environmental …, 2024 - koreascience.kr
During the blasting process, a fracture zone is formed in the vicinity of the blast hole. Any
damage that extends beyond the excavation boundary line necessitates the implementation …