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lundi 18 août 2014

extracto: curso y manual datamine


He aquí un extracto de un manual práctico DataMine (Español)
Here's an excerpt of a practical manual DataMine (Spanish)
Ici vous trouverez un Extrait pratique d'un manuel de DataMine (espagnol)


lundi 4 août 2014

Creating A Block Model - 2009 - MineSight




Where Do We Want to Go

We want to create a 3D block model that contains the ore grades for our deposit

To get this we will

Create a file 15 (a file for a block model)

Create a file 13 (a file for a gridded representation of the surface)

Use our topo surface to create a grid of surface block elevations from our topo

Create a Model View so I can see my Block Model as it comes together

Use the gridded surface to code blocks above the surface to be air

Use interpolation routines to project block ore grades from our drill hole data.

mercredi 30 juillet 2014

Importing Drill Hole Data Into Minesight




Next Thing I Need to Do is Import my drill hole data

lCommon things we know about drill holes

¡We know the location of the collar and we know the depth

lMineSight® looks for this in a collar data file

Can use comma or space delimited so most work

¡We often do down-hole surveys to determine orientation of the hole

lMineSight® looks for azimuth and dip data over various intervals in a survey data file

¡We hopefully assayed samples from our drill holes at various intervals

lMineSight® looks for an assay file

dimanche 27 juillet 2014

Groups on facebook

Nice groups for surface mining and geology on facebook - join us for free-




Introduction to Minesight - topo surfaces

Where Do You Start With a Project


lProbably have a set of topographic maps

¡Probably autocad digitized and therefore importable to MineSight®

lProbably have collections of drill hole data

¡Again we’ll assume in computer form

samedi 26 juillet 2014

Sequencing Mining Operations with MineSight


Maximizing Returns


lNPV is usually increased by bringing more early earnings and delaying expenses

¡Sequencing pits for high grade ore with lower stripping ratios tends to do this

¡We Need A Method of Finding the Best Grade Ore to Mine First


vendredi 25 juillet 2014

GEM (GEO) ESTADÍSTICA - en español / GEM GEOSTATISTICS - in Spanish / GEM GÉOSTATISTIQUE - en espagnoll /



GEM (GEO) ESTADÍSTICA - en español / 
GEM GEOSTATISTICS - in  Spanish
GEM GÉOSTATISTIQUE - en espagnol
GEM
  جيوستاتيستيك - بالإسبانية




PLAN DE VIDA DE UNA MINA USANDO MINESIGHT STRATEGIC PLANNER

Índice General

Vista Panorámica de la Mina, Lixiviación y Concentradora.
Objetivos del Plan de Vida de la Mina
Información de Asumidos
Costos
Planeamiento
             
            •Strategic Planner

lundi 24 juin 2013

lundi 13 mai 2013

BLASTING IN SURFACE EXCAVATION

 Any blast optimisation programme calls for a clear understanding of the effects of principal blast parameters and their careful application.


The degree of fragmentation of rock depends on: