The strictness of the result of an excavation, whether mechanical or by means of explosives, is naturally conditioned by the objective, and therefore by the type of technique applied to achieve it. To attain the best results in terms of rock breakage and respect of the final profile, it’s im-portant to evaluate the excavation specific energy and its optimization. This research being a re-vision of different techniques to achieve good quality of the final walls, it focuses on evaluating the effects of those techniques on the quality of the result, both in open-pit and underground op-erations. Different geometries and configurations can be applied to both quarrying and tunnel-ling blasts. The research is aimed to push contour blasts to their limits, and the main aspects are discussed in order to improve the blast parameters in the daily practice.

Precision Rock Excavation: Beyond Controlled Blasting and Line Drilling / Cardu, Marilena; Saltarin, Simone; Todaro, Carmine; Deangeli, Chiara. - In: MINING. - ISSN 2673-6489. - 1:2(2021), pp. 192-210. [10.3390/mining1020013]

Precision Rock Excavation: Beyond Controlled Blasting and Line Drilling

Marilena Cardu;Simone Saltarin;Carmine Todaro;Chiara Deangeli
2021

Abstract

The strictness of the result of an excavation, whether mechanical or by means of explosives, is naturally conditioned by the objective, and therefore by the type of technique applied to achieve it. To attain the best results in terms of rock breakage and respect of the final profile, it’s im-portant to evaluate the excavation specific energy and its optimization. This research being a re-vision of different techniques to achieve good quality of the final walls, it focuses on evaluating the effects of those techniques on the quality of the result, both in open-pit and underground op-erations. Different geometries and configurations can be applied to both quarrying and tunnel-ling blasts. The research is aimed to push contour blasts to their limits, and the main aspects are discussed in order to improve the blast parameters in the daily practice.
File in questo prodotto:
File Dimensione Formato  
Precision Rock Excavation_ Beyond Controlled Blasting and Line Drilling.pdf

accesso aperto

Tipologia: 2a Post-print versione editoriale / Version of Record
Licenza: Creative commons
Dimensione 8.98 MB
Formato Adobe PDF
8.98 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/11583/2923152