Results 11 to 20 of about 6,853 (262)
Sliding Impact Mechanism of Square Roadway Based on Complex Function Theory
Shock and Vibration, 2021 To clarify the process of stress change and plastic zone evolution of square roadways under high-stress conditions, the rotational square expansion plastic zone evolution model of square roadway was established by theoretical analysis, numerical ...
Decheng Ge +7 more
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Prediction of Grade Classification of Rock Burst Based on PCA-SSA-PNN Architecture
Geofluids, 2023 The uncertainty and complexity of rock burst brings great difficulties to the prediction of rock burst grades. In order to estimate the risk grades of rock burst, an integrated method combining principal component analysis (PCA) and sparrow search ...
Zhenyi Wang, Yalei Wang, Xiaoliang Jin
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Risk identification formula for coal burst occurrence and its application
Meitan xuebao, 2023 Aiming at the problem that the traditional discrimination method of rock burst generation lacks the consideration of the whole disaster process and has some defects, taking the decomposition of the physical process of coal mine rock burst generation as ...
Junfeng PAN +3 more
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Geofluids, 2021 Rock burst is a serious nonlinear dynamic geological hazard in underground engineering construction. In this paper, a true triaxial unloading rock burst experiment and numerical simulation are carried out on Tianhu granite to investigate the rock burst ...
Jinzhu Hu +5 more
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Study on Monitoring Rock Burst through Drill Pipe Torque
Shock and Vibration, 2015 This paper presents a new method to identify the danger of rock burst from the response of drill pipe torque during drilling process to overcome many defects of the conventional volume of drilled coal rubble method.
Zhonghua Li +3 more
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Meikuang Anquan, 2023 The accumulation and sudden release of elastic energy of near-field surrounding rock is the essence of strain-type rock burst in deep roadway. In order to further understand the mechanism of near-field surrounding rock energy on rock burst disasters, a ...
ZHAO Tongbin, YAO Jinpeng, GUO Lei, GUO Weiyao, ZHANG Yubao
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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. +3 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 +4 more
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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 +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 +9 more
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