Observatorio de I+D+i UPM

Memorias de investigación
Monitoring and control of quarry blasting: Rock movement, vibrations, fragmentation and energy
Research Areas
  • Mining operation
This book describes and analyzes the experimental work carried out in El Alto quarry (Spain) within an E.U. funded research project ¿Less Fines Production in Aggregate and Industrial Mineral Industry¿. Geometry, loading and timing characteristics are given for 35 production blasts and three single blastholes. Face movement was measured in eight of those blasts from targets hanged in front of a blasthole on the highwall. Vibration data recorded with seismographs around the block at both near and far field range are provided for 23 of such blasts and the single blastholes. Fragmentation in the hopper of the bin from images is also monitored. The most outstanding models in the literature for assessing fragmentation, vibration and face movement are applied. Some of these models show poor performance, for instance Kuz-Ram model, while others like the Blair-Armstrong¿s Fourier model for predicting the mean particle velocity spectra provide fairly good predictions. Engineering formulas are derived for predicting the face movement, fragmentation and vibrations. Finally the energy balance is calculated for eight blasts in an attempt to guide blast design.
Book Edition
Book Pulbishing
LAMBERT Academic Publishing
  • Autor: Pablo Segarra Catasus (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Ingeniería de Georrecursos y Modelización
  • Departamento: Ingeniería Química y Combustibles
S2i 2020 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)