|Map3D is a fully integrated three-dimensional layout (CAD), visualization (GIS) and stability
analysis package (BEM stress analysis). Various program modules can be used to construct
models, analyze and display stresses, strains, displacements, strength factors and probability
of failure contours. Map3D is suitable for building and modelling rock and soil engineering
design problems involving both irregular 3D massive excavations, tunnels and tabular shapes.
Models can include underground excavations, rock slopes, open pits, tunnels, 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 (non-planar and
gouge filled) that slip and open. Map3D can simulate ground support elements such as
arches, steel sets, props, thick liners, chalks, backfill etc.
The program is designed for fast, easy building and visualization of 3D models:
- Self-contained 3D CAD system for model construction
- Integrated GIS for storing, analyzing and displaying geographical reference information
- Advanced Elasto-plastic boundary element (BEM) stress analysis
- 64 bit platform and parallel processing allows for practically unlimited problem size.
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.
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.
Special features have been implemented to allow fast construction of tabular mining shapes.
The user need only specify the perimeter of each mining step and Map3D automatically builds
the required elements. The perimeter does not necessarily have to be planar. In fact any
bounding polyhedron of three-dimensional points are acceptable. Complex, multi-reef,
non-tabular (rolling or offset) mining is readily simulated. Intersecting faults or
three-dimensional dykes can be simulated.
The tabular mining can be extruded into 3D blocks then back into tabular mining if desired. This
allows construction of detailed development to be completed very quickly. Also different parts of
the model can be simulated using the tabular approximation while details can be obtained in
areas of interest by using true 3D shapes.
Wireframe mine plan outlines and excavation geometries can be digitized from within Map3D or
imported from several sources including AutoCAD-DXF and a universal ASCII PNT format. The
user can interactively build a model comprising 3D blocks and planes using the built-in CAD
capabilities of Map3D. Based on the geometric outlines or free-hand drawing, the user picks
corners of blocks and planes to complete construction of the model. All of this is done
graphically using the comprehensive set of tools available in the CAD interface.
A model comprises one or more connected or unconnected blocks and/or planes that can be
mined and filled in a specified sequence. Surfaces of blocks and planes are subsequently
discretized into a number of boundary elements by the program. Extensive error checking
assists the user in identifying whether the geometry is topographically valid or not. The same
input data can be used for elastic, thermal/fluid flow or non-linear analysis.
Analysis results can be contoured on element surfaces or on a series of used defined field
point grid planes. These later planes can be positioned at any desired location and allow
contouring of stresses, strains, displacements, strength factors or any desired combination of
these components. Line contours and/or colour filled contours can be generated with options
for labels, trajectories, transparency, grid lines and more.
Results can be exported in many formats including raster screen dumps, vector screen dumps
or selected grid or surface locations with user configurable format.