Results 11 to 20 of about 943 (203)

Modification of Coal Samples with Bursting Liability Subjected to Microwave Irradiation [PDF]

open access: yesShock and Vibration, 2021
This paper introduces the innovative technique to release the bursting liability of coal seam via microwave irradiation. To verify the feasibility of this environment-friendly technique, a series of laboratory tests incorporating acoustic emission (AE ...
Yingyuan Wen   +5 more
doaj   +3 more sources

Numerical Assessment of the Influences of Gas Pressure on Coal Burst Liability [PDF]

open access: yesEnergies, 2018
When coal mines exploit deep seams with high-gas content, risks are encountered due to the additional high likelihood of rock bursting potential problems. The bursts of coal pillars usually lead to severe fatalities, injuries, and destruction of property,
Haochen Zhao, Rennie B. Kaunda
doaj   +3 more sources

A Study on the Mechanical Properties and Bursting Liability of Coal-Rock Composites with Seam Partings [PDF]

open access: yesAdvances in Civil Engineering, 2021
Geological tectonic movements, as well as complex and varying coal-forming conditions, have led to the formation of rock partings in most coal seams. Consequently, the coal in coal-rock composites is characterised by different mechanical properties than ...
Dong Xu   +3 more
doaj   +3 more sources

Effect of Moisture Content on Bursting Liability of Sandstone due to Freeze-Thaw Action

open access: yesShock and Vibration, 2020
Moisture content (MC) and freeze-thaw (F-T) process have an important influence on the mechanical properties of rock and its rockburst tendency in the cold region.
Kesheng Li   +4 more
doaj   +3 more sources

Classification criteria for coal bursting liability based on portable Leeb hardness testing [PDF]

open access: yesMeitan xuebao
Determining the bursting liability of coal is one of the main basis for evaluating the bursting risk degree of coal burst mine. Considering the complexity of existing classification procedures for determining coal bursting liability, a new method based ...
Yixin ZHAO   +4 more
doaj   +3 more sources

Research on the influence of cyclic stress damage on coal bursting liability

open access: yesGong-kuang zidonghua, 2023
Currently, research on the dynamic behavior features of coal and rock masses only considers the influence of original geological processes such as temperature and confining pressure, without considering the impact of cyclic stress generated during coal ...
YANG Yongliang   +3 more
doaj   +2 more sources

A Bursting Liability Evaluation Method Based on Energy Transfer

open access: yesShock and Vibration
As coal mining gradually moves to deep earth, rock bursts have emerged as one of the main disasters threatening the safety of coal production. It is beneficial to conduct economic and effective prevention and control work by evaluating the bursting ...
Yukun Hou, Shankun Zhao, Yang Zhao
doaj   +2 more sources

Study on the influence of confining pressure and unloading damage on the bursting liability characteristics of coal

open access: yesFrontiers in Earth Science, 2023
The research on the bursting liability of coal under confining pressure and unloading damage is critical in creating prevention mechanisms for coal mass rock bursts in deep underground mines.
Taotao Du   +11 more
doaj   +2 more sources

Classification of Coal Bursting Liability Based on Support Vector Machine and Imbalanced Sample Set

open access: yesMinerals, 2022
As an inherent property of the accumulation of elastic energy and the sudden instability failure of coal, coal bursting liability (CBL) is the basis of the research on the early warning and prevention of coal burst. To accurately classify the CBL level, the support-vector-machine (SVM) method was introduced in this paper, and the dynamic failure time ...
Yuefeng Li, Chao Wang, Yv Liu
openaire   +2 more sources

Mechanical Properties and Control Rockburst Mechanism of Coal and Rock Mass with Bursting Liability in Deep Mining

open access: yesShock and Vibration, 2020
In order to study the mechanism of the dynamic disaster of rockburst in a deep coal mine and the prevention and control measures of weakening shock, the MTS815.03 servocontrolled rock mechanics test system is used to test the coal, rock, and combined ...
Ming-tao Gao   +4 more
doaj   +2 more sources

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