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E-raamat: Geologic and Mine Modelling Using Techbase and Lynx

(Buckinghamshire Social Services, UK)
  • Formaat: 436 pages
  • Ilmumisaeg: 18-Aug-2020
  • Kirjastus: A A Balkema Publishers
  • Keel: eng
  • ISBN-13: 9781000099966
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Geologic and Mine Modelling Using Techbase and LynxSuurem pilt
  • Formaat: 436 pages
  • Ilmumisaeg: 18-Aug-2020
  • Kirjastus: A A Balkema Publishers
  • Keel: eng
  • ISBN-13: 9781000099966
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This text provides a process-oriented discussion of the theory, methodology and philosophy of geologic and mine modelling using two commercial software packages: Techbase, a leader for mineral exploration and modelling bedded deposits; and Lynx, for modelling geology.
Preface ix
Introduction
1(27)
Geologic and mine modelling software
1(1)
Modelling as a basis for decision making and design
2(2)
Overview and limits of geologic and mine modelling
4(2)
Geologic and mine modelling procedure
6(10)
Examples and conventions used in text
16(1)
An introduction to Techbase
17(4)
Overview of Techbase
17(1)
Limitations of Techbase
18(1)
Navigating Techbase
19(2)
An introduction to Lynx
21(5)
Overview of Lynx
21(2)
Limitations of Lynx
23(1)
Navigating Lynx
23(3)
A comparison of Techbase and Lynx
26(2)
Geologic Database Management
28(27)
Data formats
28(2)
Survey or map data
28(1)
Drillhole data
29(1)
Geologic database structure
30(4)
Creating a Techbase database
34(2)
Key fields and join tables
36(3)
Creating a Lynx database
39(9)
Type 1: Header records
39(1)
Type 1: Survey records
40(1)
Type 1: Data records
40(8)
Some hints on UNIX, text editing and generating Lynx ASCII drillhole data files
48(1)
Working with map data
49(1)
Lynx map definition
49(2)
Importing ASCII map data
51(4)
Data Analysis
55(32)
Introduction
55(3)
Data validation
56(1)
Exploratory analysis
56(1)
Outliers and population classes
56(1)
Distributions
57(1)
Correlations
57(1)
Spatial covariance
58(1)
Visual data analysis
58(19)
Scatter plots
58(2)
Histograms
60(15)
Contour maps
75(2)
Spatial covariance
77(3)
Drift and trend surfaces
80(7)
Modelling Geologic Surfaces
87(55)
Drillhole data compositing
87(8)
Regularization
88(1)
Boundary intercepts
88(1)
Compositing methods
89(6)
Two-dimensional surface modelling
95(1)
Representing a surface as a matrix
96(6)
Cell tables in Techbase
102(2)
Triangulated surfaces
104(4)
Calculating volumes from triangle sets
108(11)
Interactive geological interpretation
119(1)
Cross sectional displays
119(8)
Interactive geological interpretation and volume modelling
127(15)
Estimation of Grids, Areas and Volumes of Intersection
142(77)
Estimation methods
143(1)
Areas of influence
143(5)
Triangles and triangulation
148(4)
Splines
152(4)
Weighted averages and inverse distance
156(9)
Block models
165(12)
Geologic reserves
177(3)
Derivation of the Kriging weights
180(1)
Derivation of an expression for R(xo)
181(1)
Unconstrained optimization of a single function and the Lagrange parameter
182(2)
Deriving the Kriging system of equations
184(8)
Modelling the experimental variogram
192(5)
Nugget effect
193(1)
Linear models
194(1)
Spherical models
195(1)
Exponential models
195(1)
Gaussian models
195(1)
Hole effect
196(1)
Modelling anisotropic variograms
197(4)
Using jackknifing to evaluate estimation accuracy
201(10)
Estimating areas and volumes of intersection
211(8)
Open Pit Mine Design
219(73)
Geological versus mining block models
220(2)
Intersecting pits, block models and surface topography
222(3)
Calculating mining block values
225(9)
Pit expansion methods
234(6)
Cone mining heuristics
240(6)
Ultimate pit limit optimization
246(7)
Pit expansion
253(6)
Including haul roads in an expanded pit
259(3)
Haul road construction in plan view
262(10)
Pit volume modelling and mining reserve analysis
272(20)
Underground Design
292(63)
Mine development openings
294(2)
Mine access and haulage method
296(2)
Shaft location and number
298(2)
Shaft design
300(3)
Shaft station chambers
303(3)
Level intervals
306(1)
Raises
307(1)
Ramps
308(1)
Drifts and crosscuts
309(1)
Using Lynx for underground excavation design
310(22)
Mine excavation openings
332(1)
Stope design using Lynx
333(16)
Using Techbase for underground excavation design
349(1)
Polygon tables
350(5)
Production Scheduling
355(32)
Long-term production scheduling
356(7)
Short-term production scheduling
363(24)
APPENDIX 1: Project databases
387(3)
A1.1 Using the project databases
387(1)
A1.1.1 Suggestions for using Techbase databases
387(1)
A1.1.2 Suggestions for using Lynx databases
388(1)
A1.2 Project descriptions
388(2)
A1.2.1 Boland Banya
388(1)
A1.2.2 Smoot
388(1)
A1.2.3 Pasir
389(1)
A1.2.4 Tutorial
389(1)
APPENDIX 2: Techbase database automatic fields
390(1)
APPENDIX 3: Techbase value settings
391(8)
References 399(2)
Index 401
Martin Smith (Author)
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