[Multidisciplinary Project Final Report / TU Delft] Feasibility study on Submerged Floating Crossing (Tunnel)

목차

1. INTRODUCTION
1.1 BACKGROUND
1.2 E39 FERRY-FREE PROJECT
1.3 OBJECTIVE
1.4 MAIN DEFINITION
1.4.1 SUBMERGED FLOATING CROSSING (SFC)
1.4.2 FAILURE
1.5 STUDY STRUCTURE

2. RISK ANALYSIS
2.1 RISK PERCEPTION
2.2 RISK ASSESSMENT TOOLS
2.2.1 PRELIMINARY HAZARD ANALYSIS (PHA)
2.2.2 FAULT TREE ANALYSIS (FTA)
2.2.3 EVENT TREE ANALYSIS (ETA)
2.3 HAZARD IDENTIFICATION
2.3.1 HAZARDOUS EVENT FROM PHA
2.3.2 RESULTS OF FTA
2.3.3 MAJOR HAZARDOUS EVENTS
2.4 FREQUENCY ANALYSIS
2.4.1 SHIP GROUNDING
2.4.2 FIRE ACCIDENT

3. BASIS OF DESIGN
3.1 TRADE-OFF STUDY FOR TYPE OF CROSSING
3.1.1 ESTIMATED LENGTH OF VARIOUS CROSSING TYPES
3.1.2 CONSTRUCTION COST
3.2 DESIGN PRINCIPLE
3.3 LOADING CONDITIONS

4. PRELIMINARY DESIGN
4.1 ALIGNMENT
4.1.1 CONSIDERED TYPES
4.1.2 MULTI CRITERIA ANALYSIS
4.2 CROSS SECTION
4.2.1 CONSIDERED TYPES
4.2.2 MULTI CRITERIA ANALYSIS
4.3 SUPPORT STRUCTURE
4.3.1 PONTOONS
4.3.2 TETHERS
4.3.3 MULTI CRITERIA ANALYSIS
4.4 LOAD CALCULATION
4.4.1 PERMANENT LOADS
4.4.2 VARIABLE LOADS
4.4.3 TRAFFIC LOADS
4.4.4 BUOYANCY
4.4.5 ENVIRONMENTAL LOADS

5. CONSEQUENCE MODELLING APPROACH
5.1 1-D ANALYSIS
5.1.1 BOUNDARY CONDITION
5.1.2 T RANSFORMED SECTION
5.1.3 WAVE LOAD
5.2 3-D ANALYSIS
5.2.1 MODELLING
5.2.2 LOAD DEFINITION
5.2.3 LOAD COMBINATIONS
5.2.4 TETHER CONFIGURATION
5.3 SCENARIO 1: A LOSS OF SUPPORT STRUCTURE
5.3.1 1-D BEAM RESULTS
5.3.2 3-D ANALYSIS RESULTS
5.3.3 FINDINGS OF ANALYSIS

6. CONSTRUCTION AND MAINTENANCE
6.1 GENERAL
6.2 SELECTION OF THE SITE
6.3 CONSTRUCTION OF TUBE SEGMENTS
6.4 TRANSPORTATION AND ESTABLISHMENT OF TUBE PORTIONS
6.5 WEIGHT STABILITY AND SUBMERGENCE TESTS
6.6 INSTALLATION OF ANCHORS AND CONSTRUCTION OF FOUNDATION
6.7 OPERATION AND MAINTENANCE

7. OUTCOMES OF THE STUDY
7.1 FINDINGS OF THE STUDY
7.2 DISCUSSIONS
7.3 CONCLUSION
7.4 FUTURE WORKS

8. BIBLIOGRAPHY

9. APPENDICES

본문내용

Innovative development in bridge and tunnel technology has made it possible to cross a great number of fjords and straits during the last few decades. However, there are still many locations which are too wide and too deep to be crossed by the bridges, floating bridges and sub-sea tunnels. For such fjords, Submerged Floating Crossing (SFC) seems to be a good solution for waterway crossing. Such structure has never been built so far anywhere in the world. But countries like Norway are planning to construct SFCs in the near future because its flexibility with respect to length and water depth makes it a suitable option for road traffic crossing in fjords, rivers, lakes and island connections.
Concept of SFC was initially presented by United Kingdom in 1886, however in Norway it was introduced in 1923 for the very first time. Since then it is the subject of research, as it suits most at many fjords in Norway.

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