Results 21 to 30 of about 8,180 (295)

Analysis of rock burst accidents in coal mine based on behavioral safety

open access: yesMeikuang Anquan, 2021
In order to study the behavioral causes of coal mine rock burst accidents, 24Model was applied to analyze the unsafe acts and physical causes of 10 typical rock burst accidents occurred after 2011.
YIN Wentao
doaj   +2 more sources

Research on energy model of rock burst under strain in deep roadway and energy supply law of near-field surrounding rock

open access: yesMeikuang 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
doaj   +2 more sources

Rock burst risk evaluation based on equivalent surrounding rock strength

open access: yesInternational Journal of Mining Science and Technology, 2019
On-site investigations consistently show that the rock burst inherent to coal seams varies greatly with coal seam thickness. In this study, impact factors related to coal seam thickness and surrounding rock strength were analyzed and a corresponding rock
Fuxing Jiang, Zhengxing Yu
exaly   +3 more sources

Failure mechanisms of energy redistribution in excavation roadways: experimental and numerical investigation [PDF]

open access: yesScientific Reports
The persistent occurrence of rock burst phenomena during roadway excavation poses a critical safety challenge in modern underground mining operations.
Yujie Peng   +5 more
doaj   +2 more sources

How to realize safe-efficient-intelligent mining of rock burst coal seam

open access: yesMeitan kexue jishu
How to realize safe and efficient intelligent mining of rock burst coal seam is an important industrial technical problem. This paper systematically analyzes the distribution characteristics, mining status and development trend of rock burst mine in ...
Guofa WANG   +5 more
doaj   +2 more sources

Roadway rock burst prediction based on catastrophe theory. [PDF]

open access: yesSci Rep
In order to quantitatively calculate the critical depth and critical load of mines affected by rock burst, and to achieve effective prevention and control of rock burst in coal mines, this paper proposes a mechanical model for predicting the occurrence ...
Pan W, Shuan-Cheng G, Wei S.
europepmc   +2 more sources

Occurrence law and classification prevention of rock burst in coal mines of Shaanxi Province

open access: yesMeitan kexue jishu
With coal resource extraction areas are constantly shifting towards the west and deeper regions, and the number of rock burst mines in the western region is increasing rapidly.
Junfeng PAN   +5 more
doaj   +2 more sources

Failure test and strength model of high-porous low-cementitious waste backfilling material

open access: yesMeitan kexue jishu, 2023
In order to alleviate the shortage of underground aggregate sources and time cost of vibration and compaction during backfilling, a new type of high-porous low-cementitious waste backfilling material (HPLCM), which was composed of self-compacting slurry ...
Chunyang CUI   +5 more
doaj   +1 more source

Dynamic Responses of Embedded Rock Pile Groups due to Rock Burst considering Coupled Pile-to-Pile Interaction [PDF]

open access: yes, 2022
This note presents an analytical solution to investigate the dynamic behavior of pile groups of embedded rock due to rock burst, which takes into account the interaction between piles. The energy generated by the rock burst propagates through the soil in
Fengxi Zhou   +3 more
core   +1 more source

Research on the type and occurrence mechanism and prevention of coal pillar rockbursts

open access: yesMeitan kexue jishu, 2023
Coal pillar rockburst is a typical type of rockburst occurring in coal mining in China in recent years. How to summarize the engineering scale damage characteristics of coal pillar rockburst, reveal the mechanism of rockburst instability and formulate ...
Xiufeng ZHANG, Yang CHEN
doaj   +1 more source

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