Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Phu Minh Vuong Nguyen"'
Publikováno v:
Energies, Vol 15, Iss 21, p 8311 (2022)
In Poland, the mining waste from underground coal mines is commonly deposited in surface dump sites, forming slopes or piles of materials dozens of meters high. Because of the loose structure of a mine waste dump slope, landslides may occur after a h
Externí odkaz:
https://doaj.org/article/a3308bb9b64842d1ab2dc4b398ecf178
Publikováno v:
Energies, Vol 15, Iss 14, p 4958 (2022)
This article presents a methodology for predicting the absolute methane emission rate for longwall caving extraction based on the determination of destressing zones generated by longwall mining operations, by means of numerical modelling. This method
Externí odkaz:
https://doaj.org/article/2aeb8a4254944d518403a8d63995bbe1
Autor:
Phu Minh Vuong Nguyen
Publikováno v:
Studia Geotechnica et Mechanica. 44:282-295
In recent decades, many open pit (OP) mines have either already made the decision or are at the planning stage to change their mining activity from OP to underground (UG) to remain competitive. Technically, before the OP ends its operation, both OP a
Publikováno v:
Archives of Mining Sciences; 2023, Vol. 68 Issue 4, p639-654, 16p
Publikováno v:
Studia Geotechnica et Mechanica, Vol 43, Iss 4, Pp 389-410 (2021)
It is well-known that the longwall mining method (with roof caving) is widely used in underground mining extraction for bedded deposits (e.g. coal) due to its numerous advantages. Generally, this method is not commonly applied for ore deposits such a
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Akademický článek
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Publikováno v:
International Journal of Mining, Reclamation and Environment. 32:221-238
The objective of this study is to integrate the admissible factor of safety (FoS) into the mine planning. The analysis showed, as expected, that a lower net present value (NPV) is obtained with the increase in the admissible FoS. Most importantly, it
Publikováno v:
Proceedings of the 27th International Symposium on Mine Planning and Equipment Selection-MPES 2018 ISBN: 9783319992198
Open pit mines cannot increase continually its depth of exploitation due to costs, safety, environmental and social expectations. In fact, many open pit mines have either already made the decision or are at the planning stage to change their mining a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e0a4e59a7556bfb7d9472fb2ffc54624
https://doi.org/10.1007/978-3-319-99220-4_32
https://doi.org/10.1007/978-3-319-99220-4_32
Publikováno v:
E3S Web of Conferences, Vol 35, p 01001 (2018)
Nowadays, for a number of reasons, many open pit mines are considering a transition from Open Pit (OP) to Underground (UG) to remain competitive. In OP-UG transition, UG operation is operated simultaneously with the OP operation for a certain period