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MINE PLANNING BASICS FRIDAY – WHAT’S THE DIFFERENCE BETWEEN GR, RR and TR??

My kind associate Kenn Smart allowed me to use this graphic from his collection of BASICS of EARTHMOVING booklets. People get confused when talking about gradients. Some express the steepness in degrees, and some in percent. An 8-degree slope is very much different from an 8% slope. What % are your ramps designed at? Is your TR within spec...?

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