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Author(s):	Gomes, Alexandre R. A.; Reyes, Gustavo; Ulloa, Juan Carlos
Title:
Abstract:	The mining complex Chuquicamata, of the National Copper Corporation of Chile (CODELCO), is located in the Atacama Desert, 1, 650 km north of Santiago, and 2, 870 m above sea level. Since the large copper ore reserve that lies below the “Chuquicamata” open pit (Fig. 1) will no longer be economically feasible to mine from the end of this decade, the mine is currently developing the required infrastructure to switch the operation to an underground mine type, where the block caving method with macro-blocks will be used to mine out copper ore. The future mine will count with four production levels, corresponding to one of the largest underground mining operations in the world, with a production rate of about 140, 000 t/d. This article presents design aspects of the permanent underground infra-structure works, which encompass several deep and steep tunnels and vertical shafts for the future mine access and operation. Der Bergbaukomplex Chuquicamata der National Copper Corporation of Chile (CODELCO) liegt in der Atacama-Wüste, 1.650 km nördlich von Santiago und 2.870 m über dem Meeresspiegel (Bild 1). Ab Ende dieses Jahrzehnts wird der Abbau der Lagerstätte im Tagebau nicht mehr wirtschaftlich sein. Daher werden derzeit die notwendigen Infrastrukturanlagen errichtet, um den Betrieb auf Untertagebau umzustellen, wobei das Kupferz im Blockbruchbau mit Makro-Blöcken abgebaut werden soll.? Das Bergwerk wird künftig über vier Produktionsebenen verfügen und mit einer Produktion von etwa 140.000 t/d zu einem der größten Bergwerken der Welt zählen. Dieser Beitrag stellt einige Planungsgesichtspunkte für die dauerhafte unterirdische Infrastruktur vor, die mehrere tiefliegende und steile Tunnel und Vertikalschächte für die Erschließung der Lagerstätte und den Betrieb des Bergwerks umfasst.
Source:	Geomechanics and Tunnelling 6 (2013), No. 4
Page/s:	327-337
Language of Publication:	English/German

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