Results 21 to 30 of about 6,494 (162)

Rock burst governance of working face under igneous rock [PDF]

AIP Conference Proceedings, 2017
As a typical failure phenomenon, rock burst occurs in many mines. It can not only cause the working face to cease production, but also cause serious damage to production equipment, and even result in casualties. To explore how to govern rock burst of working face under igneous rock, the 10416 working face in some mine is taken as engineering background.
Zhenxing Chang, Yue Yu
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Case Study of the Characteristics and Mechanism of Rock Burst near Fault in Yima Coalfield, China

Shock and Vibration, 2021
Deep mining near faults may easily cause rock bursts, which seriously threaten mining safety. Based on the engineering background of deep mining near fault in Yima coalfield, by collecting the rock burst events that happened near fault during deep mining,
Zhenhua Jiao, Qiupeng Yuan, Peng Zou, Benjun Shi   +3 more
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The Rock Burst Hazard Evaluation Using Statistical Learning Approaches

Shock and Vibration, 2021
The great threat and destructiveness brought by a rock burst make its prediction and prevention crucial in engineering. The rock burst hazard evaluation at project locations is an effective way of preventing rock burst since currently real-time ...
Jie Chen, Jingkuan Gao, Yuanyuan Pu, Mingzhong Gao, Like Wei, Chong Wang, Bo Peng, Xusheng Zhao, Guangchao Zhang, Zhigang Zhang   +9 more
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Analysis and evaluation of essential factors for rock burst mechanism

矿业科学学报, 2021
This paper puts forward the energy characteristics and mechanism elements of rock burst, and preliminarily establishes the evaluation index and system of roadway rock burst mechanism ("3 + 4" index system).The main criterion layer of the system is the ...
Ma Nianjie, Zhang Wenlong, Li Jun, Lian Xiaoyong, Ren Jianjü   +4 more
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Blasting pressure relief technology for preventing rock burst in deep heading roadway

Gong-kuang zidonghua, 2022
In order to solve the problems of low pressure relief intensity, untimely pressure relief and high labor intensity in the prevention and control of rock burst by using large diameter borehole pressure relief in deep heading roadway, taking the 401103 ...
MA Wentao, MA Xiaohui, LYU Dazhao, WANG Bing, ZHU Gangliang   +4 more
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A self-supervision rockburst risk prediction algorithm based on automatic mining of rockburst prediction index features

Frontiers in Earth Science
The rockburst risk prediction based on microseismic (MS) data is an important research task in deep mine safety prevention. However, the lack of systematic research on explicit prediction indexes and the waste of a large amount of unlabeled data are ...
Xiufeng Zhang, Haikuan Zhang, Haitao Li, Guoying Li, Shanshan Xue, Haichen Yin, Yang Chen, Fei Han   +7 more
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Rock Burst Intensity Classification Prediction Model Based on a Bayesian Hyperparameter Optimization Support Vector Machine

Mathematics, 2022
Rock burst disasters occurring in underground high-stress rock mass mining and excavation engineering seriously threaten the safety of workers and hinders the progress of engineering construction.
Shaohong Yan, Yanbo Zhang, Xiangxin Liu, Runze Liu   +3 more
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Shattering Rock with Intense Bursts of Energetic Electrons [PDF]

IEEE Transactions on Nuclear Science, 1973
It has been successfully demonstrated that intense bursts of energetic electrons cause significant rock spalling for modest energy inputs. The corresponding temperature rise per pulse in the bombarded volume of rock is only ~ 200° C, or so. Some analytical predictions and experimental evidence of this novel accelerator application are presented.
Avery, Robert T., Keefe, Denis, Brekke, Tor L., Finnie, Iain.   +3 more
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Ultrasonic and CT scanning analysis of coal-rock mass under the primary bedding structure

Meitan kexue jishu
In order to study the influence of the primary bedding structure on wave velocity and mechanical properties of coal-rock mass, multilayer and multi-directional ultrasonic and CT scanning tests were carried out in laboratory.
Guorong LEI, Chunyuan LI, Qingxin QI, Jiamin WANG, Weisheng DU, Xiangshang LI, Tuan HE   +6 more
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Experimental and numerical study on rock burst triggering mechanism via spatiotemporal evolution of stress flow

Meitan kexue jishu
To address the prevention and control of rock burst disasters in deep coal mines, this study focuses on the spatiotemporal evolution mechanism of mining-induced stress, introducing the novel concept of “stress flow” to characterize dynamic stress ...
Chi LIU, Xingyu JIANG, Haitao LI, Pengyu MU, Huaguang LIU, Honghui YUAN, Qingxin QI, Shouguang WANG   +7 more
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