![]() These angles are the pit wall slope measured from one toe to the next crest (upwards) or one crest to the next toe (downwards). When expanding (or contracting) closed strings to construct benches, they are done so on a point-by-point basis at specified angles. Which way a design is started depends on what data is available, the specific data involved, and the requirements of the project. That is, pit design may be started on surface and designed downward to a base, or from a base and upward to topography. Benches are constructed by either expanding or contracting closed strings, either upwards or downwards depending on where the design is started, by a certain bench height. The Pit Design module uses normal String data to build a pit by progressively expanding or contracting toes and crests.
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