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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 …
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 …
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 …
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 …
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 …
its operation is generally subjected to static pressure due to tectonic and gravitational …
Effects of delay time on crack coalescence between two boreholes
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 …
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
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 …
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 …
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
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 …
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 …
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 …
economy of the project. Considering the seriousness of over‐under‐excavation and the …