Fort Point Channel Design of Composite Caisson/Tunnel Immersed Tubes

Background

The Problem

The Concept

Preliminary Design

Final Design

Float-Out (Figure 4)

Initial Placing (Figures 5 & 6)

Load Transfer to Drilled Shafts

Dewatering the Ventilation Buildings (Figure 7)

Construction of the Basement (Figures 8 & 9)

Construction Sequence

Placing Sequence

Schedule Saving

Conclusion

Acknowledgements