PRESENTATION	
  CONTENT	
  
Evalua5ng	
  alterna5ve	
  
railway	
  route	
  alignments	
  
  Africa	
  Status	
  Quo	
  
...
Gauge:
1 067 mm
1 000 mm
1 435 mm
80 000 km - 7% of World total
THE	
  CHALLENGE	
  TO	
  MINING	
  COMPANIES……	
  
•  The	
  logis4cal	
  solu4on	
  to	
  export/import	
  bulk	
  
comm...
Bulk Material Handling Chain
Shiploader
Stacker
Reclaimers
Stockpile
Conveyor

Conveyor

Telecomms&
Signaling

Stockpile

...
ESTABLISHING	
  THE	
  DESIGN	
  PRINCIPLES/CRITERIA	
  
•  Design	
  traffic	
  
• 
• 
• 
• 
• 

Track	
  gauge	
  
Track	
...
METHODOLOGY	
  IN	
  ESTABLISHING	
  A	
  ROUTE	
  
ALIGNMENT	
  
•  Global	
  Mapper	
  (SRTM	
  data	
  Spa4al	
  inform...
36 Routes
Considered
LONG	
  SECTIONS	
  
AERIAL	
  SURVEY	
  
LIDAR	
  system	
  
SRTM	
  VS	
  LIDAR	
  SURVEY	
  
MASS	
  EARTHWORKS	
  
Cuts & Fills

1	
  

2	
  

3	
  

4	
  
Bridges
1	
  

2	
  

3	
  

4	
  
ALIGNMENT	
  COMPARISON	
  SUMMARY	
  
Route Characteristic

1

Total Route Length To Nkaya Junction
Highest route elevat
...
CONSIST	
  SIZING	
  (MIN	
  CONT	
  SPEED	
  25.3	
  KPH)	
  
CROSSING	
  LOOP	
  LOCATIONS	
  	
  
LIFE	
  CYCLE	
  COST	
  COMPARISON	
  OF	
  ALTERNATIVE	
  ALIGNMENTS	
  
CAPEX	
  Examples	
  :	
  

OPEX	
  examples:	
...
OVERALL	
  MCA	
  SCORES	
  	
  

1	
  

2	
  

3	
  

4	
  

5	
  
PRESENT	
  VALUE	
  (PV)	
  EVALUATION	
  

1	
  

	
  	
  	
  2	
  

	
  	
  	
  3	
  

	
  	
  4	
  

	
  5	
  
CONCLUSION	
  
Satellite	
  data	
  can	
  be	
  used	
  very	
  effec4vely	
  in	
  a	
  first	
  order	
  
geometric	
  de...
Francois Heyns, Aurecon: Evaluating alternative railway route alignments
Francois Heyns, Aurecon: Evaluating alternative railway route alignments
Francois Heyns, Aurecon: Evaluating alternative railway route alignments
Francois Heyns, Aurecon: Evaluating alternative railway route alignments
Francois Heyns, Aurecon: Evaluating alternative railway route alignments
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Francois Heyns, Aurecon: Evaluating alternative railway route alignments

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Francois Heyns, Technical Director, Railway Engineering, Aurecon delivered this presentation at the 2012 Heavy Haul Rail Africa conference. Heavy Haul Rail Africa 2014 will cover all the relevant issues including government and resource sector perspectives on future developments in heavy haul rail infrastructure, opportunities to source relevant funding, regulatory progress, challenges in planning and construction, rolling stock requirements, maintenance and capacity enhancement. To view the full agenda and to register, please visit the conference website http://www.railconferences.com/hhrailafrica

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Francois Heyns, Aurecon: Evaluating alternative railway route alignments

  1. 1. PRESENTATION  CONTENT   Evalua5ng  alterna5ve   railway  route  alignments     Africa  Status  Quo     Challenges     Approach     Cos5ng  OPEX  &  CAPEX     Life  cycle  cos5ng     Conclusion  
  2. 2. Gauge: 1 067 mm 1 000 mm 1 435 mm
  3. 3. 80 000 km - 7% of World total
  4. 4. THE  CHALLENGE  TO  MINING  COMPANIES……   •  The  logis4cal  solu4on  to  export/import  bulk   commodi4es  from  mines   •  First  order  studies  on  the  logis4cal  solu4on  to   validate  the  viability  of  the  mine.        
  5. 5. Bulk Material Handling Chain Shiploader Stacker Reclaimers Stockpile Conveyor Conveyor Telecomms& Signaling Stockpile Buildings/Depots Conveyor Workshops Load-out Tippler Crossing loops Arrivals/Dep Yard Arrivals/Dep Yard Loop Mine Loop Railway: Mainline Port
  6. 6. ESTABLISHING  THE  DESIGN  PRINCIPLES/CRITERIA   •  Design  traffic   •  •  •  •  •  Track  gauge   Track  geometry  -­‐    ruling  grades,  radii   Earthworks   Track  Superstructure   etc.  
  7. 7. METHODOLOGY  IN  ESTABLISHING  A  ROUTE   ALIGNMENT   •  Global  Mapper  (SRTM  data  Spa4al  informa4on);   •  Google  Earth;   •  Map  Source;     •  Trimble  –  op4miza4on  soSware,  and   •  Design  soSware  such  as  Inrail,  Civil  Designer,  Civil   3D,  etc.  
  8. 8. 36 Routes Considered
  9. 9. LONG  SECTIONS  
  10. 10. AERIAL  SURVEY   LIDAR  system  
  11. 11. SRTM  VS  LIDAR  SURVEY  
  12. 12. MASS  EARTHWORKS  
  13. 13. Cuts & Fills 1   2   3   4  
  14. 14. Bridges 1   2   3   4  
  15. 15. ALIGNMENT  COMPARISON  SUMMARY   Route Characteristic 1 Total Route Length To Nkaya Junction Highest route elevat ion Special Structures Total Length of Special Structures Small Number of bridges: River Crossings Medium Large Road Crossings Total bridges Culverts Earthworks quantities Cut volumes (Million) Fill volumes (Million) % of earthworks compared to 2006 tudy s Max Grade in Loaded Direction Max Grade in Empty Direction Route topography 2 3 4 5
  16. 16. CONSIST  SIZING  (MIN  CONT  SPEED  25.3  KPH)  
  17. 17. CROSSING  LOOP  LOCATIONS    
  18. 18. LIFE  CYCLE  COST  COMPARISON  OF  ALTERNATIVE  ALIGNMENTS   CAPEX  Examples  :   OPEX  examples:   •  ocomo4ves;   L •  rewing;   C •  agons;   W •  uel;   F •  ail  Yard;  and   R •  ocomo4ve  maintenance;   L •  rack,  etc.   T •  agon  maintenance;   W •  ard  maintenance;  and   Y •  usiness  overheads.   B
  19. 19. OVERALL  MCA  SCORES     1   2   3   4   5  
  20. 20. PRESENT  VALUE  (PV)  EVALUATION   1        2        3      4    5  
  21. 21. CONCLUSION   Satellite  data  can  be  used  very  effec4vely  in  a  first  order   geometric  design  study  to  establish  a  viable  horizontal   and  ver4cal  rail  alignment  along  with  the  associated   infrastructure  cost  such  as  earthworks,  bridges,   drainage,  trackwork,  etc.     The  analysis  showed  allows  the  mining  companies  to  make   important  decisions  regarding  the  viability  of  the  mine   i.e.  the  dollar  rate  per  tonne  to  import/export  the  bulk   commodity.       This  may  prompt  further  studies  or  maybe,  more   importantly,  stop  the  mine  from  spending  unnecessary   further  capital  on  detailed  studies  that  may  include   costly  topographical  or  geotechnical  surveys.  

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