Blo-Up

Blo-Up

Since 2001, Itasca has been a member of the Hybrid Stress Blast Model (HSBM) project with the goal of developing a numerical model of the rock blasting process. The software created by Itasca, called Blo-Up, uses a unique combination of continuous and discontinuous numerical methods to represent the key processes occurring during blasting.

Blo-Up is a three-component coupled model of rock blasting. A coupled modeling approach was chosen because no single numerical technique was found to adequately describe all the physical phenomena occurring during blasting. The three components are (i) a continuum geomechanics model for the early-time detonation and near-field crushing; (ii) a brittle discrete element model for stress wave propagation, fracturing and burden movement; and (iii) a gas product model for burden acceleration by gas expansion, fracture flow, and atmospheric venting.

Furtney, J. K., P. A. Cundall, I. Onederra and E. Sellers. (2011) “Numerical Modeling of Rock Blasting: Validation Tests for Blo-Up 2.5,” in Continuum and Distinct Element Modeling in Geomechanics --- 2011 (Proceedings, 2nd International FLAC/DEM Symposium, Melbourne, February 2011), 359–367, D. Sainsbury, R. Hart, C. Detournay, and M. Nelson, Eds. Minneapolis: Itasca International Inc.

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Blo-Up Updates

Latest News
  • Itasca Celebrates 40 Years Itasca is celebrating 40 years of solving geomechanical and hydrogeological challenges through engineering and computer...
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  • Stability and Stress-Deformation Analyses of Reinforced Slope Failure at Yeager Airport This paper describes the material properties along with the inverse limit-equilibrium and permanent deformation analyses...
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  • Computers and Geotechnics: Scott Sloan Best Paper Award for 2019 Itasca is pleased to congratulate Dr. Branko Damjanac and Dr. Peter A, Cundall for their...
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Upcoming Events
8 Mar
FLAC3D 2021 Online, Live Introductory Training: COURSE IS FULL
Three days of general feature training addressing basic concepts and recommended procedures for geotechnical numerical analysis.... Read More
22 Mar
3DEC and UDEC 2021 Online, Live Introductory Training
An introduction to UDEC and 3DEC for application to geotechnical analysis.... Read More
12 Apr
PFC 2021 Online, Live Introductory Training
This four-day course provides guidance in the use of the PFC2D and PFC3D to simulate the mechanical behavior of granular and solid mate... Read More