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Showing: 1 to 10 of 8 matches for "lerchs grossman algorithm"  Page   1
TITLE Cut off Grade Optimizer Integrating Contaminant Constraints 
SUMMARY ... Constraints Open pit mine planning is normally based on the selection of an economic envelope that has been generated by the Lerchs & Grossman algorithm, which requires individual economic valuation of each block of a geological block model. The selected envelope, usually called Final Pit, is later ...
AUTHOR Troncoso, Sebastián H.
PUBLISHED 2009
TITLE Maximiser ? Beyond Pit Optimisation 
SUMMARY 212583 Maximiser ? Beyond Pit Optimisation Pit Optimisation using the Lerchs Grossman algorithm has been successfully applied in many deposits. Pit shells often form the basis for scheduling. Pre-assigned costs may not accurately reflect the costs that strategic scheduling decisions are based on ...
AUTHOR M.A.Kelly
PUBLISHED 2007
TITLE The Lerchs Grossman Algorithm from a Dual Simplex Viewpoint 
SUMMARY 30273 The Lerchs Grossman Algorithm from a Dual Simplex Viewpoint In 1965 Helmut Lerchs and lngo Grossmann presented to the mining community an algorithm to find the optimum design for an open pit mine. In their words, "the objective is to design the contour of a pit so as to maximize the difference ...
AUTHOR Underwood, Robert ; Tolwinski, Boleslaw
PUBLISHED 1996
TITLE Introductory Review – Computer Applications In Mining 
SUMMARY ... the Lerch-Grossman algorithm. The multiple-cone technique is the older of the two techniques and has the advantage of being more flexible, allowing an engineer to easily vary pit slopes in different sectors of the design. The technique can also be used to define intermediate pit contours. The Lerch ...
AUTHOR Pana, Milton T.
PUBLISHED 1969
TITLE Open Pit Production Planning using Controlled Pushbacks and Aggregates 
SUMMARY ... within those pushbacks, as the units of production control in mid- and short-term planning. However, the nested pits generated by Lerchs-Grossman algorithm and the polygons drawn by mining engineer do not provide control over the value and tonnage of ore and waste inside the planning units and ...
AUTHOR Tabesh, M.
PUBLISHED 2013
TITLE New Developments In Ultimate Pit Limit Problem Solution Methods 
SUMMARY ... Results of a series of computational tests are presented to demonstrate how this approach performs as compared to the well-known Lerchs Grossman algorithm. It is also shown that the solution by the new method will automatically include several optimal solutions based on predetermined number of ...
AUTHOR Yegulalp, T. M.
PUBLISHED 1993
TITLE A Fast Algorithm To Solve The Ultimate Pit Limit Problem 
SUMMARY ... known Labeling Algorithm of Ford and Fulkerson (1956), enabling one to solve large problems with relatively small computers. We present results of a series: of benchmark tests using this approach against the well known Lerchs Grossman algorithm as well as a brief description of the new algorithm ...
AUTHOR Yegulalp, Tuncel M.
PUBLISHED 1992
TITLE New Developments In Ultimate Pit Limit Problem Solution Methods 
SUMMARY ... 1956). Results of a series of computational tests are presented to demonstrate how this approach performs as compared to the well-known Lerchs Grossman algorithm. It is also shown that the solution by the new method automatically includes several optimal solutions based on a predetermined number of ...
AUTHOR Yegulalp, T.M. ; Arias, A.J ; Muduli, P. ; Xi, Y.
PUBLISHED 1994
Showing: 1 to 10 of 8 matches for "lerchs grossman algorithm"  Page   1

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