Velocity tomography of cross-sectional damage evolution along rock longitudinal direction under uniaxial loading

Q Zheng, J Qian, H Zhang, Y Chen, S Zhang - Tunnelling and Underground …, 2024 - Elsevier
Rock pillars in rock engineering are affected by the stress concentration, which is uneven
and can lead to potential instability after loading disturbance. In this paper, considering the …

Effects of 2D&3D nonparallel flaws on failure characteristics of brittle rock-like samples under uniaxial compression: Insights from acoustic emission and DIC …

Y Zhao, C Chen, S Wu, P Guo, B Li - Theoretical and Applied Fracture …, 2022 - Elsevier
The occurrence of preset flaws can influence the mechanical, physical and other related
properties of rock samples. To study the failure characteristics of rock samples with 2D&3D …

Application of asymmetric semi-circular bend test for determining mixed mode I+ II fracture toughness of compacted soil material

MRM Aliha, PJ Haghighatpour, A Tavana - Engineering Fracture …, 2022 - Elsevier
Soil is a common material for constructing the sub-grade layer in multi-layer pavement
systems, buried pipelines and embankment dams. Failure and fracture of this material may …

Effects of thermally-induced cracks on acoustic emission characteristics of granite under tensile conditions

P Guo, S Wu, G Zhang, C Chu - … Journal of Rock Mechanics and Mining …, 2021 - Elsevier
Temperature can affect the physical and mechanical properties of rocks. With the aim of
better understanding the effect of thermally-induced cracks on rock failure process, we …

Microscopic acoustic emission simulation and fracture mechanism of cemented tailings backfill based on moment tensor theory

A Cheng, P Shu, D Deng, C Zhou, S Huang… - Construction and Building …, 2021 - Elsevier
As an artificial pillar, the cemented tailings backfill (CTB) is not destroyed in a short time. It is
of great significance to understand the fracture mechanism of CTB for mine backfilling …

Rock strata failure behavior of deep ordovician limestone aquifer and multi-level control technology of water inrush based on microseismic monitoring and numerical …

J Zuo, G Wu, J Du, B Lei, Y Li - Rock Mechanics and Rock Engineering, 2022 - Springer
The mining depth of most coal mines in North China has exceeded 1 km. The high seepage
water pressure caused by high ground stress leads to the increasingly serious threat of …

Experimental and numerical study of failure characteristics of brittle rocks with single internal 3D open-type flaw

Y Zhao, Y Gao, S Wu, L Chen, C Zhang - Acta Geotechnica, 2021 - Springer
Open flaws without any filling material are common fracture structures in real rock. To study
the failure characteristics of this fracture structure, small-scale rock-like samples with single …

A study of crack initiation and source mechanism in the Brazilian test based on moment tensor

W Sun, S Wu - Engineering Fracture Mechanics, 2021 - Elsevier
It has been widely accepted that the Brazilian test can be used to obtain the indirect tensile
strength of geo-materials. However, the effects of the contact conditions and the …

Evaluation of the characterization of acoustic emission of brittle rocks from the experiment to numerical simulation

F Bu, L Xue, M Zhai, X Huang, J Dong, N Liang… - Scientific Reports, 2022 - nature.com
Acoustic emission (AE) characterization is an effective technique to indirectly capture the
failure process of quasi brittle rock. In previous studies, both experiments and numerical …

Three-dimensional numerical study on failure mechanism of granite after thermal treatment based on moment tensor inversion

Y Dang, Z Yang, X Liu - Computers and Geotechnics, 2023 - Elsevier
In this study, a three-dimensional model was established to study the failure mechanism of
granite after thermal treatment. Firstly, the evolution of micro-cracks and thermal stress in the …