Du kanske gillar
Rock Fragmentation by Blasting
Proceedings of the 9th Int. Symp. on Rock Fragmentation by Blasting - Fragblast 9, Sept. 2009, Granada Spain
Fri frakt inom Sverige för privatpersoner.
Laddas ned direkt3489
Bloggat om Rock Fragmentation by Blasting
Universidad Politecnica de Madrid, Spain
Keynote addresses Fragmentation characterization; the Swebrec function and its use in blast engineering Intra-hole and inter-hole effects in typical blast designs and their implications on explosives energy release and detonator delay time-A critical review 1. Rock characterization Mechanical characterization of rocks at high strain rate by the JRC modified Hopkinson bar: A tool in blast and impact assessment Rate dependence of tensile/flexural strengths of Laurentian granite Determination of dynamic fracture parameters of rocks using a semi-circular bend technique Dynamic caustics experiment of blast-induced crack propagation in material containing plane of weakness 3-Dimensional visualization of granitic rocks subjected to impact loading using Micro-focus X-ray CT scanner An application of fuzzy sets to the blastability assessment of rock mass Hydrothermal alteration impact on drilling and blasting management, planning and fragmentation results How 3D images support bench face profiling, blast planning and rock mass characterisation Referenced 3D images from inside cavities and behind rings in sublevel caving 2. Explosives and initiation systems Study of the effect of particle size distribution on the detonation velocity of modified ANFO Application of heavy ANFO explosives in quarries nearby Istanbul Development of low density reactive agents Evaluation of salt-ANFO mixtures in back break reduction by data envelopment analysis Properties of alternatively fueled ammonium nitrate explosives Use of furnace oil as liquid fuel in site mixed slurry explosive system - A case study A long-hole open stope blast in hot ground A new principal formula for the determination of explosive strength in combination with the rock mass strength Study and application of an elliptical bipolar linear shaped charge Limitations of electronic delays for the control of blast vibration and fragmentation Pre-programmed electronic detonators for underground blasting The key technique of highly precise and safe delay detonator without primary explosive 3. Blast design, monitoring and fragmentation assessment A common form for fragment size distributions from blasting and a derivation of a generalized Kuznetsov's x50-equation Formulae and techniques for assessing features of blast-induced fragmentation distributions Evaluating a calibration method for the estimation of fragmented rock 3D-size-distribution out of 2D images Fragmentation size measurement using 3D surface imaging Evaluation of some distribution functions for describing rock fragmentation data Influence of rock mass blastability on explosive energy distribution A practical method of bench blasting design for desired fragmentation based on digital image processing technique and Kuz-Ram model Kuznetsov model's efficiency in estimation of mean fragment size at the Sungun copper mine Determination of the practicable burden in Sungun open-pit mine, Iran Control of rock fragmentation and muck pile geometry during production blasts (environmentally friendly blasting technique) The application of electronic monitors to understand blast movement dynamics and improve blast designs New methodology for the quality control of long-hole drilling in underground hard rock mines Causes, implications and control of oversize during blasting Tunnel blast pattern design using short holes 4. Modelling of rock blasting Simulation of real detonations as an energy source term for the Hybrid Stress Blasting Model Developments in numerical modeling of blast induced rock fragmentation: Updates from the HSBM project Towards a complete validation of the lattice scheme in the Hybrid Stress Blasting Model (HSBM) Modelling the impact of sublevel caving blast design and performance on material recovery A numerical investigation of the effect of blasthole delay in rock fragmentation Use of a modified particle-based method in simulating blast-induced rock fract