This application is used to design 3D structures such as drifts, ramps and raises. The design of a mine is a complex task. The Layout application permits interactively building a grade line directly in 3 dimensions. Mine designers are free to design without the hassle of tedious mathematics, thus increasing dramatically their productivity. With this effective process, more sensitivity analysis can be done in a short time frame, hence finding out the optimum design is made easier and faster. The application also includes automatic annotations and 3D modeling for visualization and plotting.

Grade Line

Grade line (the terms grade line and centerline are used interchangeably in this document) can be built progressively with straight and/or curved segments at any given grade or orientation.

While laying out a drift, a floating window will appear in the AutoCAD environment as shown in Figure 1. This dialog allows user to change design parameters, such as grade, elevation and radius of curvature of a curved segment at run time. The three radio buttons located at the bottom of the dialog box allow the user to select the priority mode of applying a grade or setting coordinates while laying out the drift.

The grade line is the backbone of the 3D drift design procedure. To facilitate the design of the grade line, specific tools are provided in Layout to help the planner to modify and connect grade lines after they are drawn. All graphical calculations are handled by the software to relieve the user from tedious mathematical manipulations.

Layout offers over 5 ways of grade line annotations, such as elevation, grade, length, azimuth, dip, radius of curvature, etc. The user can customize his/her own preferences through settings in a configuration dialog.

Wall Lines

Following the creation of the drift grade line, the 3D wall lines can be drawn by one click on tool button. Layout also provides an easy way to create a cross-cut. The user only needs to pick 2 points and a curved ramp will be created merging seamlessly with the existing wall lines.

Drift Modeling in 3D

After the centerline and the wall lines are built, the 3D drift modeling can be constructed using either the mesh or the solid. Both methods offer volumetric calculation on the drift.