Effects of in-situ stress on rock cracking in presplit blasting

X Li, K Liu, J Yang, T Qiu, Y Sha - Computers and Geotechnics, 2024 - Elsevier
When the presplit blasting is applied to rock excavation at a deep level, crack-forming
difficulties are encountered due to the characteristics of high geo-stress. In this study, the …

Study on explosion impact pressure and damage distribution law of rock powder segmented charge

Z Li, Y Wu, X Zhang, X Li, W Zhao, W Gao, H Li… - Engineering Failure …, 2024 - Elsevier
The charge structure is the critical to determine the bench blasting effect of rock slope.
Through theoretical calculation, model testing, and numerical simulation, a formula for …

Micro-and macro-scale fracture behaviour of brittle rocks: Comparison between the conventional Brazilian test and the advanced universal snap-back indirect tensile …

FY Pratomo, M Karakus, GD Nguyen, HH Bui - International Journal of …, 2024 - Elsevier
Post-peak behaviour is crucial for the estimation of rock mass fracturing in cave mining
operations where hard rocks can exhibit class-II or snap-back response when subjected to …

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 …

Effects of delay time on crack coalescence between two boreholes

K Liu, X Zhao, X Li, Y Sha, Z Hong, J Yang… - Theoretical and Applied …, 2024 - Elsevier
Delayed detonation widely occurs in rock blasting, which has a significant influence on the
propagation and interaction of explosion-induced stress waves. This affects the rock fracture …

Harmonizing blasting efficiency: A case study on evaluation and optimization of fragmentation size and ground vibration

M Naresh, N Sri Chandrahas, G Praful Kumar… - Journal of the Institution …, 2024 - Springer
Drilling and blasting techniques persist as the most economically viable approaches for rock
excavation in both surface and underground mining. However, the conventional focus has …

Experimental study on the influence of decoupling coefficient on rock blasting fragmentation and energy

Z Li, J Zhou, Y Wu, H Li, Y Li, Y Hu, W Gao… - Engineering Fracture …, 2025 - Elsevier
To address the distribution characteristics of rock fragmentation and energy utilization
efficiency under explosive loading in decoupling charge structures, this study employed …

Study on the characteristics of blast-induced damage zone by using the wave velocity field inversion technique

S Fu, H Li, L Liu, Q Li, X Li - Computers and Geotechnics, 2024 - Elsevier
The rock excavation by drilling and blasting method would lead to damage around the
blasting hole, which could significantly affect the long-term stability of surrounding rock mass …

Experimental study of the impact of deck-charge structure on blast-induced fragmentation

Z Hong, M Tao, S Feng, H Liu, W Wu, X Li… - … and Geophysics for Geo …, 2025 - Springer
The deck-charge structure, also known as axially decoupled charge structure, has been
widely applied in open-pit rock excavation to improve blasting performance. However, the …

Influence Mechanism and Control Measures of Smooth Blasting Contour Formation in Jointed Rock Mass Tunnel

C Ma, Y Hu, Z Yang, M Liu - Advances in Civil Engineering, 2025 - Wiley Online Library
The flatness and damage zone of the tunnel excavation contour is critical to the safety and
economy of the project. Considering the seriousness of over‐under‐excavation and the …