The management of overburden is an important task in open pit exploitations. Site topography and morphology as well as geological and geotechnical properties of natural and remoulded materials are the most important factors affecting the disposal phase. Economic and environmental requirements must be followed in order to achieve the best reclamation results, keeping into account site constraints such as slope stability, hauling and dumping issues, and interactions with groundwater. This paper deals with the above mentioned issues, illustrating a rational approach applied on the case of a large limestone quarry where the thickness of the overburden is relevant and the spoil material has to be dumped in a flooded pit. The proposed multidisciplinary approach led to the selection of most suitable methods for excavation, transportation and disposal. The selection was based on a detailed laboratory and site characterisation that defined favourable and adverse factors to be considered during the preliminary study of a large quarrying project.

Overburden management in open pits: options and limits in large limestone quarries / Oggeri, Claudio; Fenoglio, TADDEO MARIA; Godio, Alberto; Vinai, Raffaele. - In: INTERNATIONAL JOURNAL OF MINING SCIENCE AND TECHNOLOGY. - ISSN 2095-2686. - ELETTRONICO. - (2019). [10.1016/j.ijmst.2018.06.011]

Overburden management in open pits: options and limits in large limestone quarries

OGGERI, CLAUDIO;FENOGLIO, TADDEO MARIA;GODIO, Alberto;VINAI, RAFFAELE
2019

Abstract

The management of overburden is an important task in open pit exploitations. Site topography and morphology as well as geological and geotechnical properties of natural and remoulded materials are the most important factors affecting the disposal phase. Economic and environmental requirements must be followed in order to achieve the best reclamation results, keeping into account site constraints such as slope stability, hauling and dumping issues, and interactions with groundwater. This paper deals with the above mentioned issues, illustrating a rational approach applied on the case of a large limestone quarry where the thickness of the overburden is relevant and the spoil material has to be dumped in a flooded pit. The proposed multidisciplinary approach led to the selection of most suitable methods for excavation, transportation and disposal. The selection was based on a detailed laboratory and site characterisation that defined favourable and adverse factors to be considered during the preliminary study of a large quarrying project.
File in questo prodotto:
File Dimensione Formato  
published.pdf

accesso aperto

Descrizione: file pdf della versione in stampa
Tipologia: 2a Post-print versione editoriale / Version of Record
Licenza: Creative commons
Dimensione 3.09 MB
Formato Adobe PDF
3.09 MB Adobe PDF Visualizza/Apri
Pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2717085
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo