HOF Citations 2016 Mining Software - Dr Terry Wiles

2016 IN ASSOCIATION WITH MINING SOFTWARE Dr Terry Wiles Dr Terry Wiles received a PhD in Civil Engineering from the University of Toronto and went on to work for Inco in Sudbury contributing to some pioneering work on rockburst alleviation measures. He left INCO to develop Map3D, a fully integrated three‐dimensional layout (CAD), visualisation (GIS) and stability analysis package (BEM elasto‐plastic numerical modelling stress analysis). Map3d has been commercially available since 1990. Wiles has been solely responsible for all technical developments and innovation in Map3D. In terms of further functionality of Map3D: “Map3D has the ability to simulate everything from simple tunnels and tabular shapes to detailed 3D excavation shapes and large scale mine wide problems. The difficulty users will encounter in model construction and interpretation depend on the amount of complexity required for the simulation at hand. While simple tabular models or single tunnels are fast and easy to construct in Map3D, complex three-dimensional problems are more difficult to work with and interpret.” 3D non‐linear yielding between drifts Wiles’s Map3D in-depth overview A complex 3D mining example from Map3d Map3d has been the industry standard since 1990 and has been continuously enhanced to provide a powerful engineering design tool. Map3d numerical models have been used worldwide for underground MinCa excavations, rock slopes, open pits, tunnels, to 26 account for the presence of fractures and surface infrastructure loads. The stress analysis models can simulate yielding (non‐linear) zones of different moduli (e.g. stiff dykes or soft ore zones) and loads due to steady state thermal/fluid flow. Excavations can be intersected by multiple discrete faults (nonplanar and gouge filled) that slip and open. Map3D can simulate ground support elements such as arches, steel sets, props, thick liners, chalks, backfill etc. “What sets Map3D apart from other analysis programs is its ability to accommodate a very wide range of problems in 3D. Large, complex, fully 3D problems can be built with ease using the built-in CAD functionality. Combined use of both FF and DD elements allows for simulations of 3D excavations with intersecting fractures or shear planes. The various versions of Map3D fully support plastic Fault-Slip and 3D rock-mass plasticity, featuring compatible input files for all versions thus providing a clear upgrade path as upgrades to advanced capabilities are required by the user.” Map3D has a completely self-contained CAD facility. One of the keys to the ease of use is model construction using either conventional surface elements or the built-in solid modelling technology. This permits users to build models using a series of three-dimensional building blocks. These blocks, which can be any desired shape or size, are used to construct excavations and accesses, as well as to define large or irregular shaped non-homogeneous zones (ore zones, dykes and yielding zones). All of the material outside the model boundary is assumed to be a solid host material. The program automatically builds intersections between excavations, faults and multiple material zones. By coupling this capability with the built-in Boolean operations, complex multi-step mining sequences can be constructed with ease. Open pit and underground workings