1. JAMES THOMSON C. ENG JACKED STRUCTURES SA WWW.JACKEDSTRUCTURES.COM JACKED STRUCTURES SA A New Approach to Constructing Underground Stations

2. Jacked Installations for Large Structures JACKED STRUCTURES SA Some Early Projects Modular installation of foundations, abutments and piers Box Jacking

3. Modular Concept JACKED STRUCTURES SA

4. Wandsworth- 1969 JACKED STRUCTURES SA

5. The Box Jacking Concept JACKED STRUCTURES SA

6. Brent Cross -1974 JACKED STRUCTURES SA

7. THE JACKED ARCH THE JACKED DECK JACKED STRUCTURES SA New Concepts

8. The Jacked Arch Concept JACKED STRUCTURES SA

9. The Jacked Deck Concept JACKED STRUCTURES SA

10. A 20M WIDE 126M LONG ROAD UNDERPASS BELOW RAIL TRACKS CLIENT: EAST KENT CC CONTRACTOR: VOLKER FITZPATRICK HOCHTIEF JV JACKED STRUCTURES SA Cliffsend Underpass

11. JACKED STRUCTURES SA Tender Scheme aa Volker Fitzpatrick Hochtief JV

12. Cliffsend Underpass JACKED STRUCTURES SA Final Scheme Volker Fitzpatrick Hochtief JV

13. Cliffsend Road Underpass –Aerial View JACKED STRUCTURES SA

14. Cliffsend Road Underpass Jacked Deck Face Excvation JACKED STRUCTURES SA

15. Cliffsend Road Underpass Deck Jacking Installation JACKED STRUCTURES SA

16. INSTALLATION BY JACKED ARCH AND JACKED DECK METHODS JACKED STRUCTURES SA Underground Metro Stations

17. JACKED STRUCTURES SA Metro Stations- Arch Configurations Top Box with PilesModular foundations and Walls

18. Metro Stations Arch Configurations JACKED STRUCTURES SA Foundation BoxFoundation Tunnel

19. Four Platform Arrangement JACKED STRUCTURES SA

20. Alternative Four Platform Arrangement JACKED STRUCTURES SA

21. Jacked Deck Concepts JACKED STRUCTURES SA

22. An underground station – piled abutments from a high level box and a jacked arch JACKED STRUCTURES SA

23. TYPICALLY: 22M -24 M SPAN AROUND 200M LONG DEPTH VARYING FROM 6M-10M JACKED STRUCTURES SA Application of Jacked Deck to Launch Boxes

24. By breaking down the process into elements reduces the exposed soil face Minimises jacking forces and reaction arrangements. Continuous support of the excavation with a full structural lining Surface settlement is minimal Use of precast units allows higher quality construction JACKED STRUCTURES SA Advantages of the Jacked Arch and Deck Approach

25. A wide range of geometry and configurations Installation to very close line and level tolerances Methods are applicable to both shallow and deep structures Provides greater clear spans over much longer drive lengths. Small launch platform area JACKED STRUCTURES SA Advantages of the Jacked Arch and Deck Approach

26. JACKED STRUCTURES SA