Make Top Of Key Grid

Function

This command analyzes the thicknesses of the Key strata in a PreCalc file and creates a new base of overburden grid based on a minable key thickness entered. It starts at the top Key strata. Anywhere the thickness is less than the value entered, the grid drops down to the to off the next Key strata. This grid can then be added to a mining model PreCalc file for calculating overburden volumes and for scheduling. Shown below is a cross section example of the grid dropping down when the key thickness falls below the entered thickness value.

Prompts

Minimum key thickness <0.0>: 1
Reading cell> 194032
Reading cell> 194032
Reading cell> 194032
Writing grid> c:\scad2005\DATA\New Top of Key.grd
Writing cell> 194032
Done.

Pulldown Menu Location: StrataCalc in Advanced Mining
Keyboard Command: top_key
File Names: \lsp\dtmmkgrd.lsp,\lsp\makegrid.arx, \lsp\makegrid.dcl