Results 41 to 50 of about 4,148 (210)

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

Ensemble stacking rockburst prediction model based on Yeo–Johnson, K-means SMOTE, and optimal rockburst feature dimension determination

Scientific Reports, 2022
Rockburst forecasting plays a crucial role in prevention and control of rockburst disaster. To improve the accuracy of rockburst prediction at the data structure and algorithm levels, the Yeo–Johnson transform, K-means SMOTE oversampling, and optimal ...
Lijun Sun, Nanyan Hu, Yicheng Ye, Wenkan Tan, Menglong Wu, Xianhua Wang, Zhaoyun Huang   +6 more
doaj   +1 more source

Application of KNN-based isometric mapping and fuzzy c-means algorithm to predict short-term rockburst risk in deep underground projects

Frontiers in Public Health, 2022
The rockburst phenomenon is the major source of the high number of casualties and fatalities during the construction of deep underground projects. Rockburst poses a severe hazard to the safety of employees and equipment in subsurface mining operations ...
Muhammad Kamran, Barkat Ullah, Mahmood Ahmad, Mohanad Muayad Sabri Sabri   +3 more
doaj   +1 more source

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

Deep Underground Science and Engineering, EarlyView.
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

Energy Evolution and AE Failure Precursory Characteristics of Rocks with Different Rockburst Proneness

Advances in Civil Engineering, 2020
Mastering the precursory information of rock failure is the basis of scientifically predicting rockburst, and AE technology is an effective means to solve this problem.
Feng Pei, Hongguang Ji, Jiwei Zhao, Jingming Geng   +3 more
doaj   +1 more source

Effect of the Initial Support of the Tunnel on the Characteristics of Rockburst: Case Study and Mechanism Analysis

Advances in Civil Engineering, 2022
Rockburst is still a stubborn disease in the field of engineering geology. The present research pays more attention to the influence of geological conditions on rockburst and less to the influence of type and stiffness of engineering support on rockburst.
Chunchi Ma, Junqi Fan, Xiang Ji, Xiaoyan Shi, Jun Zeng   +4 more
doaj   +1 more source

Influence of mining excavation on energy redistribution and rockburst potential [PDF]

, 2013
International audienceWith the increase of mining depth, rockburst is one of the most serious disasters which threaten the safety of mine operators and the surface stability.
Al Heib, Marwan, Didier, Christophe, Gunzburger, Yann, Lafont, G., Mitri, H.S., Piguet, Jack-Pierre   +5 more
core   +1 more source

VERBAL WARFARE IN THE POLISH MEDIA: AN ANALYSIS OF CONCEPTUAL METAPHORS IN POLITICAL DISCOURSE [PDF]

, 2013
The outcome of the analyses of spoken and written data reveals that political, social and economic antagonisms are well fed by language which highlights dichotomies and depicts ‘the others’ as the source of all evil.
Gieroń-Czepczor, Ewa
core   +2 more sources

A rock brittleness index based on the postpeak energy release rate and damage surface characteristics for brittle hard rock

Deep Underground Science and Engineering, EarlyView.
This study examines energy evolution in rock rupture via triaxial direct shear tests, exploring the impact of confining pressure and temperature on fracture surface randomness. A novel energy‐based brittleness index is proposed, validated experimentally, and compared with existing methods for reliability and accuracy.
Biao Wang, Zaobao Liu, Jing Xue, Bo Lu, Wei Zeng, Dengke Zhang   +5 more
wiley   +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