Pillar Design

Itasca has developed unique and robust approaches to pillar design that recognizes the importance of understanding the rock behavior from intact rock and bedding to joints and faults. Itasca’s software can model the stress-strain response of continuous, blocky, or bedded materials exhibiting plastic, brittle, or creep behaviors. Consequently, any combination of lithology comprising the pillar-floor-roof system can be analyzed. This includes reproducing the complex combination of pillar sloughing (rib rash) and floor heave experienced at different extraction levels and vertical stress levels throughout a mine. Information derived from these pillar-scale models forms an essential input to larger-scale models, which have been used extensively for design of individual panels (width, remnant stub width, and extraction ratio) as well as barrier pillars, and the overall mine layout and extraction ratio. These larger-scale models have been validated through successful back-prediction of the timing and nature of large-scale catastrophic collapses experienced in the region.

Latest News
  • Itasca Software now Available for Linux Version 7 or greater of Itasca software (FLAC3D, 3DEC, PFC3D, and PFC2D) are now operable...
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  • Itasca Celebrates 40 Years Itasca is celebrating 40 years of solving geomechanical and hydrogeological challenges through engineering and computer...
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  • Introducing Our New IMASS Constitutive Model The Itasca Constitutive Model for Advanced Strain Softening (IMASS) has been developed to represent the...
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Upcoming Events
13 Mar
3DEC In-Person Introductory course
Live in-person introductory training course in Minneapolis, Minnesota. This course provides an overview of the capabilities and feature... Read More
27 Mar
FLAC3D In-Person Introductory Course
Live in-person introductory training course. This 3-day course provides general feature training addressing basic concepts and recommen... Read More
30 Mar
Griddle In-Person Introductory Course
Live in-person introductory training course. This course provides an overview of the capabilities and features of Rhino3D CAD software ... Read More