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Author (up) Cardu, M.; Godio, A.; Oggeri, C.; Seccatore, J. doi  openurl
  Title The influence of rock mass fracturing on splitting and contour blasts Type
  Year 2022 Publication Geomechanics and Geoengineering-An International Journal Abbreviated Journal Geomech. Geoengin.  
  Volume 17 Issue 3 Pages 822-833  
  Keywords Drill & blast; contour blasting; rock quality designation; half cast factor; over break  
  Abstract Splitting and contour blasting are aimed to achieve suitable profiles by cutting along a surface, while common blasting is intended to detach and to fragment relevant rock volumes by increasing the fracturing state. These techniques are adopted in both underground works (tunnels, caverns, quarries) and also for surface excavations (quarries, mines, rock slopes engineering). Contour blasts are widely used techniques in mining and civil engineering to enhance performance while maintaining the safety of personnel and infrastructure. Splitting blasts are mainly used in dimension stone mining to obtain intact blocks of valuable ornamental stone. The parameters of controlled blasting (geometry, charge, blast agent) require an accurate selection using optimised blasting patterns and explosive properties; most of the proposed methods are limited and unsatisfactory due to insufficient consideration of rock mass properties. A quick but effective comparison and analysis of the different characteristics of the rock mass and its heterogeneities is presented, as it indicates a better strategy to determine a tailored blasting design for a given site, thus significantly improving the contour blasting quality.  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1748-6025 ISBN Medium  
  Area Expedition Conference  
  Notes WOS:000630315000001 Approved  
  Call Number UAI @ alexi.delcanto @ Serial 1361  
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