Results 31 to 40 of about 1,288 (184)

Crack segmentation model for coal-rock CT images based on explicit visual prompting and its applications

工程科学学报
Various defect structures exist in coal and rock masses, including cracks and pores, which significantly affect the occurrence and migration of coalbed methane.
Ziyue JIN, Haitao LI, Guanyu YANG, Yulong CHEN, Haikuan ZHANG   +4 more
doaj   +1 more source

Mining-induced seismicity of a seam located in rock mass made of thick sandstone layers with very low strength and deformation parameters

Journal of Sustainable Mining, 2018
The paper presents the results of calculations and analyses aimed at explaining the cause and mechanism of strong seismic events E ≥ 105 J (local magnitude, Ml ≥ 1.7).
Jan Drzewiecki, Jacek Myszkowski
doaj   +1 more source

Optimization of Rockburst Risk Control Measures for Deeply Buried TBM Tunnels: A Case Study

Buildings, 2023
Choosing reasonable control measures for different intensity rockburst risks not only effectively prevents and mitigates rockburst risks but also reduces time and engineering investment costs.
Pengxiang Li, Jinshuai Zhao, Wankui Bu, Wenjing Niu, Pinpin Liu, Minghong Sun   +5 more
doaj   +1 more source

Investigation on the failure evolution characteristics of surrounding rock in deep cross‐fault roadway: Based on physical model test and numerical simulation

Deep Underground Science and Engineering, EarlyView.
This study reveals the failure evolution characteristics of deep cross‐fault roadway surrounding rock under excavation support and periodic weighting. Periodic weighting readily induces fault activation, with the spatial distribution of failed rock masses being controlled by the fault strike and dip.
Tiezhu Li, Suping Peng, Jing Zheng, Zhanhua Yang, Qijun Tian   +4 more
wiley   +1 more source

Architecture research of digitalized source governance system for rock burst prevention: A case study of Xinjie Taigemiao Mining Area

Meitan kexue jishu
Surrounding mines of the Xinjie Taigemiao Mining Area are all typical rock burst-prone collieries. Based on the principle of engineering analogy, it can be conclusively determined that future rock burst events will significantly jeopardize the safe and ...
Xudong WANG, Jianwei ZHENG, Haitao LI, Qingxin QI, Junliang DONG, Mou LYU, Liang ZHANG, Yiqin LIU, Haikuan ZHANG, Shanshan XUE, Huaguang LIU, Weisheng DU, Fucheng GUO   +12 more
doaj   +1 more source

Mechanism of “seesaw‐type” rock burst in coal seam mining beneath mountainous areas

Deep Underground Science and Engineering, EarlyView.
This study reveals the mechanism of “seesaw‐type” rock bursts during coal mining beneath mountainous areas. The advancing working face induces nonuniform fracturing of the overburden. The detached mountain mass then undergoes a seesaw‐type rotational movement around a shifting pivot, driving the primary fracture through a characteristic “open‐close ...
Chao Zhou, Xueqiu He, Zhenlei Li, Ping Wang, Dazhao Song, Fuxing Jiang, Shan Yin, Anliang Lü, Menghan Wei, Taoping Zhong   +9 more
wiley   +1 more source

Mechanism and Inducing Factors of Rockburst Events of Roadways Under Ultrathick Strata

Frontiers in Earth Science, 2022
The overlying strata of the Yima coalfield are ultrathick conglomerate. Aiming at the problem of frequent occurrence of rockburst events in the central Yima coalfield during 2006–2015, the characteristics of rockburst events, microseismic (MS) monitoring,
Zhen Hao, Guangzhong Sun, Guohua Zhang
doaj   +1 more source

Nanoscale fracture mechanisms in defective α‐quartz induced by compression: Insights from molecular dynamics simulation

Deep Underground Science and Engineering, EarlyView.
Rock fracture can ultimately be traced to atomic bond breakage. Taking quartz as a representative mineral, this paper employs molecular dynamics to identify the crack initiation and propagation mechanisms for single‐hole cases, as well as crack coalescence modes between double holes under compression, providing a physical basis for multiscale modeling ...
Sheng Li, Hongchang Zhou, Yuhao Wu, Suifeng Wang, Jikai Sun   +4 more
wiley   +1 more source

Intelligent Monitoring and Warning for Road‐Network Tunnels Via Feature Matching

Applied Research, Volume 5, Issue 5, October 2026.
To address the safety issues in mountain tunnel construction, an early warning model integrating association rules and text vectorization feature matching was developed. The validation on two tunnels demonstrated that this model can accurately predict accident types and actively identify risks, providing support for dynamic safety management and the ...
Yinghui Zhang, Xianghui Liu
wiley   +1 more source

The damage and failure mechanism of prestatically loaded rock during medium‐strain rate cyclic impact loading

Deep Underground Science and Engineering, Volume 5, Issue 3, Page 829-842, September 2026.
Based on experimental results and theoretical analysis, an established rock damage accumulation model that comprehensively considers the preapplied static load, impact peak value, impact frequency, and impact times. Abstract To study the rock damage mechanism under high static loading and superimposed medium strain rate cyclic impact loading, a series ...
Wei Wang, Hanpeng Wang, Zicheng Wang, Xinyuan Xie, Yunhao Wu, Jinhou Zhang, Dekang Sun   +6 more
wiley   +1 more source