Zobrazeno 1 - 3
of 3
pro vyhledávání: '"Hiroto Hashikawa"'
Publikováno v:
Applied Sciences, Vol 12, Iss 3, p 1719 (2022)
The typical reinforcements and supports used in the main gate of underground coal mining (particularly in the weak to very weak rock strata), such as rock/cable bolts, steel sets, and grouting materials, often allow the mine to remain serviceable in
Externí odkaz:
https://doaj.org/article/6579d1fd30804182a0edaa0df960787c
Autor:
Hiroto Hashikawa, Mao Pisith, Takashi Sasaoka, Akihiro Hamanaka, Hideki Shimada, Ulaankhuu Batsaikhan, Jiro Oya
More than 99% of coal mining in Indonesia is open-pit mining. Nowadays, the adoption of the underground coal mining method is discussed to extend coal production due to the increasing demand for coal. However, the geological conditions in Indonesia a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6754c6373430ecd4d9a0cd15c70eeac7
https://doi.org/10.21203/rs.3.rs-2107553/v1
https://doi.org/10.21203/rs.3.rs-2107553/v1
Autor:
Hiroto Hashikawa, Pisith Mao, Takashi Sasaoka, Akihiro Hamanaka, Hideki Shimada, Ulaankhuu Batsaikhan, Jiro Oya
Publikováno v:
Sustainability; Volume 14; Issue 24; Pages: 16508
In Indonesia, the adoption of the underground coal mining method is discussed to extend coal production. However, the geological conditions in Indonesia are very weak. In particular, the mechanical properties of the immediate roof/floor in shallow de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::17ac8dfb0a7b7ab38c7918e7a217f135
https://doi.org/10.3390/su142416508
https://doi.org/10.3390/su142416508