Validation of Slopes of Access Roads in Deep Open Pit Mining

Autor:	G. G. Sakantsev, I. V. Zyryanov, V. I. Cheskidov, A. N. Akishev
Rok vydání:	2018
Předmět:	Discounted cost business.industry Open-pit mining Geology 02 engineering and technology Geotechnical Engineering and Engineering Geology Mineral resource classification Flattening 020501 mining & metallurgy 0205 materials engineering Mining engineering business Transportation capacity
Zdroj:	Journal of Mining Science. 54:77-84
ISSN:	1573-8736 1062-7391
DOI:	10.1134/s1062739118013377
Popis:	It is found that the slope of access roads influences adds to flattening of nonmining pit walls where the access roads are driven. Aiming to determine the over-flattening of nonmining pit walls, the quick and accurate analytical method is developed. It is proved that the increase of the slope of access roads to the maximum possible values (20–24%) enables reduction in stripping by 20–40% in deep open pit mines. The mining efficiency in case of steep slopes, aside from extra flattening of nonmining pit walls, is also influenced by the depth of transition to such slopes and the transportation capacity of the access roads depending on distribution of mining operations along the depth of an open pit mine. It is demonstrated that it is most reasonable to gradually increase the slope of access roads with the mining depth, starting from the initial value (8%) and up to the maximum governed by technical requirements and operating conditions.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::1194361829f8dbf4dfb7f2c6440c8bf9 https://doi.org/10.1134/s1062739118013377 Zobrazit plný text záznamu Plný text ve formátu PDF