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Technical Note: NPV Scheduler Family Release 4.27 Reference: TN00203

Created: January 25, 2016

Last modified: January 25, 2016

1. NEW FUNCTIONALITIES

Release 4.27 introduces several new functionalities.

1.1. Ability to generate pit with minimum bottom width

Smooth pits are essential for generating practical pushbacks. The new option will remove

the narrow bottoms of the ultimate LG pit. The nested LG phases generated inside the

smooth pit will not be adjusted and will contain narrow bottoms.

1.2. Bench Progress report for MAO/MFO/FMS pits

The new report is similar to the Incremental Report by Pushback. It shows the number of

benches and rock mass for each pushback in each period.

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1.3. Cycle Time check

The Parameters tab in MAO Haulage Information dialog allows to validate all haulage inputs

before computing the truck hours. Users can select a particular block by entering its

coordinates, its pushback, rock type, and destination. The tool will calculate and show EFH

for each haulage segment and the cycle time for one return trip.

1.4. Save/Load report templates from a file

Report options can be quite cumbersome to define. Once set they can be re-used between

different Economic Model case studies and between different projects as long as they have

the same rock type labels and processing method labels. Users can save and load one

report file for each report category.

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2. IMPROVEMENTS

Release 4.27 introduces several improvements to existing functionalities.

2.1. Completely re-designed Pushback Generator

Datamine has funded a research project with Ecole Polytechnique in Montreal that allowed re-

designing the existing pushback algorithm. The options allow smoothing the final pit or keeping

it unchanged. The new controls allow merging smaller disjointed pits to preceding pushbacks

and re-calculating the UP-OES after generating each pushback.

The legacy algorithm is also available.

2.2. Obstacle cost defined in a file when scheduling imported pushbacks

Obstacle cost boundaries defined in the Ultimate Pit settings dialog are automatically assigned

to the corresponding pushback bench when scheduling imported pushbacks. In all previous

version users had to manually match the costs to each pushback in Capital Costs dialog and

the costs were not related to the corresponding bench. There is no change in the UI.

3. IMPROVEMENTS

Release 4.27 contains multiple bug fixes.

a. NPVS-1908 Grade curves now show average grades

b. NPVS-1915 Fix in DmBlendingSolver required for FMS

c. NPVS-1892 Issue refreshing rotated MineSight models

d. NPVS-1885 Issue refreshing MineSight models in Multimine Scheduler

e. NPVS-1902 Ultimate Pits in Multimine Scheduler are same as in NPV Scheduler

f. NPVS-1888 Issue with Global Targets after renaming stockpiles

g. NPVS-1906 Issue when using user defined topography with imported pushbacks in

Multimine Scheduler

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h. NPVS-1912 Obstacle costs are now reported in the correct LG phase

i. NPVS-1869 Issue with stockpile reclaim is resolved

j. NPVS-1919 EM settings report displays correct cut-off for underground methods

k. NPVS-744 MAO mine life is now correctly reported

l. NPVS-1914 MAO report items are now correctly aligned