1. Matt Sykes Andy Kervell Yung Loo Heidi Clough Craig Sturzaker ARUP: Update on GIS Model and tunnel options under lake

2. 2 Contents Definition of Study Area Update on GIS tool Development - Current Status - Further Steps Potential outcomes examples and decisions Tunnel construction optioneering - Lake crossing: Bored/IMT Next Steps

3. 3 Study Area

4. 4

5. 5 Update on GIS Decision Support Tool

6. 6 User Inputs Alignments of 6 FCC Options Interactive alignment location on map Alter Shaft locations (10%) - slidebar Select Tunnel Depth - slidebar Select Tunnel Gradient - slidebar Outputs Dynamic Chart: Profile surface elevation and geology Profile of tunnel Shaft Locations Warnings when tunnel above ground level Dynamic Tables: Depth to tunnel (mBGL) Shaft Length intersecting geology layer % age of tunnel intersecting geology Current Status Depth (mBGL) (Length of Shaft Intersecting Layer)

7. 7 Future Development GIS Decision Support Tool: Addition of Geology Layers Addition of Hazard layers (?) Adjust gradient inflection point Export of Results – table/report Future Analytical Functions: Export of user selected 3D alignment to GIS layer Intersection with Geological hazards + results 3D Visualisation (desktop) in ArcScene/ browser (?)

8. 8 Diagram of Solution PHP Web Server PostGreSQL PostGIS Users CERN GADZ Arup Web Browser Client Javascript Dimension Charting CrossFilter Web Server Interface Layer (PHP Script) Spatial Database (on Server) Select Tunnel Alignment Move Alignment within study area Select Shaft position, tunnel depth & gradient Visualise alignment / shaft on map Send final alignment to database Calculate shaft location @10% circumference Charting of surfaces / shaft locations Calculation & presentation of statistics for tables Create points (@1%) from alignment geometry Intersect points with surface/geology layers Return XYZ at every point to Client Application security Client / Database interface

9. 9 GIS Tool – Future Steps Integration of GADZ data - Extension of Quaternaire-Molasse layer - Molasse – Crétacé layer Geohazard layers - (http://infoterre.brgm.fr/viewerlite/MainTileForward.do)http://infoterre.brgm.fr/viewerlite/MainTileForward.do Decision Aid Possibilities GeoMol

10. 10 GIS Tool – Future Steps

11. 11 Lake Crossing: Tunnelling Considerations Bored/IMT Construction Methods - Excavation Technology - Ground conditions, geotechnical risk - Logistics: Segmental vs prefab and casting basin - Long term durability: Stability, joints, maintenance & operation - Environmental: Spoil disposal, dredging, ship impacts - Energy: Power and fuel consumption - Cost and programme

12. 12 Lake Crossing: Tunnelling Considerations Superficial sediments Moraine Molasse Fiore et al. 2011, Würmian deglaciation of western Lake Geneva (Switzerland) based on seismic stratigraphy

13. 13 Lake Crossing: Tunnelling Considerations EPBM Slurry TBM IMT Superficial sediments Moraine Molasse

14. 14 Lake Crossing: Tunnelling Considerations

15. 15 Fehmarnbelt Fixed Link

16. 16 Next Steps Completion of GIS tool Integration of GADZ data Produce preliminary optioneering screening results