Zobrazeno 1 - 10
of 107
pro vyhledávání: '"B. Apel"'
Publikováno v:
Applied Sciences, Vol 14, Iss 12, p 5209 (2024)
Rock bursts are dynamic phenomena in underground openings, causing damage to support and infrastructure, and are one of the main natural hazards in underground coal mines. The prediction of rock bursts is important for improving safety in mine openin
Externí odkaz:
https://doaj.org/article/18cc2387841f41eaae7857570fb83bbf
Publikováno v:
Minerals, Vol 14, Iss 4, p 331 (2024)
Flotation stands out as a successful and extensively employed method for separating valuable mineral particles from waste rock. The efficiency of this process is subjected to the distinct physicochemical attributes exhibited by various minerals. Howe
Externí odkaz:
https://doaj.org/article/7ed04c79093248eea55954e30f5286b7
Autor:
Jun Wang, Derek B. Apel, Artur Dyczko, Andrzej Walentek, Stanisław Prusek, Huawei Xu, Chong Wei
Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 14, Iss 6, Pp 1671-1696 (2022)
Strainburst is the most common type of rockbursts. The research of strainburst damage mechanisms is helpful to improve and optimize the rock support design in the burst-prone ground. In this study, an improved global-local modeling approach was first
Externí odkaz:
https://doaj.org/article/c691bef62caf4a3f99e072fb03398c9b
Publikováno v:
International Journal of Coal Science & Technology, Vol 9, Iss 1, Pp 1-26 (2022)
Highlights: (1) Energy-absorption capacity of yielding rockbolts in rockbursts is evaluated. (2) Rock deformation and rockburst damage are quantitatively assessed. (3) Performance of yielding rockbolts in weak and strong rockbursts is studied. (4) Ef
Externí odkaz:
https://doaj.org/article/073fe82fe8a246649d2fc2ef6a2733c2
Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 14, Iss 3, Pp 703-713 (2022)
The risk of rockbursts is one of the main threats in hard coal mines. Compared to other underground mines, the number of factors contributing to the rockburst at underground coal mines is much greater. Factors such as the coal seam tendency to rockbu
Externí odkaz:
https://doaj.org/article/6bf14ab61849450dbc526e835ca1c4bc
Publikováno v:
International Journal of Mining Science and Technology, Vol 30, Iss 6, Pp 909-915 (2020)
Strategic maintenance plays a key role in ensuring high availability and utilization of the haul trucks, and as equipment began to grow more complex towards the end of the 20th century, there was a need for a proactive maintenance strategy, which led
Externí odkaz:
https://doaj.org/article/719d3f28bfc24ede9392486880cf666e
Publikováno v:
Energies, Vol 15, Iss 17, p 6263 (2022)
To achieve a targeted production level in mining industries, all machine systems and their subsystems must perform efficiently and be reliable during their lifetime. Implications of equipment failure have become more critical with the increasing size
Externí odkaz:
https://doaj.org/article/68722e75a3654c45981d48850a7f6a91
Publikováno v:
International Journal of Mining Science and Technology, Vol 29, Iss 4, Pp 609-616 (2019)
To study the shear behavior of the ultrafine magnetite tailings subjected to freeze-thaw cycles, unconsolidated-undrained shear tests were conducted on ultrafine-grained tailings that were subjected to 1–11 cycles of freeze-thaw and defined as a ty
Externí odkaz:
https://doaj.org/article/cba36401f77f4d16999dbba517b18cbd
Publikováno v:
International Journal of Mining Science and Technology, Vol 29, Iss 4, Pp 565-570 (2019)
One of the most serious mining disasters in underground mines is rockburst phenomena. They can lead to injuries and even fatalities as well as damage to underground openings and mining equipment. This has forced many researchers to investigate altern
Externí odkaz:
https://doaj.org/article/c966d09fe6944a80aeea589ab306919c
Publikováno v:
Energies, Vol 15, Iss 10, p 3797 (2022)
In Canada, many mines have adopted the sublevel stoping method, such a blasthole stoping (BHS), to extract steeply deposited minerals. Sill pillars are usually kept in place in this mining method to support the weight of the overburden in underground
Externí odkaz:
https://doaj.org/article/c3f648bed5e54d6e89de9dff311a7d9d