advances in segmental and final liner designs bob frew ... · advances in segmental and final liner...
TRANSCRIPT
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Advances in Segmental and Final Liner Designs
Bob Frew
Vice President AECOM North American Tunnel Practice
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Segmental Lining
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Segmental Lining
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ITA TUNNEL DESIGN GUIDELINES
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Design a Brief History• Trial & Error• Terzaghi (1906)• Peck• Morgan• Muir-Wood
• Curtis• Duddeck & Erdmann• Finite Element / Finite Difference
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Design a Brief History
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Single Ring Models
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Single Ring Models
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Single Ring Models
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Tunnel Lining Design3D FE Analysis (LUSAS)
• Ring roll & joint arrangement
• Derailment / Impact Loading
• Explosion Loads (100KN/m2) applied to internal lining only
• Sunken Vessel Load (100KN/m2)
• Flooding (22ft (6.7m) above top of river level)
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Coupled Ring Models
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Coupled Ring Models
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Loads
• External
• Internal
• Imposed
• Tolerance
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Loads: External
• Ground
• Hydrostatic
• Seismic
• Surcharge
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Loads: ExternalGround
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Loads: ExternalGround
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Loads: Internal• Fluid Pressure
• Wall Mounted Equipment/Facilities
• Vehicle Loads• Service• Accident
• Fire
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Loads: Internal Fire
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Loads: Imposed• Handling
• Stacking
• Transporting
• Erection• Handling• Tolerance
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Loads: ImposedTBM
• Thrust
• Back Up
• Grouting
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Loads: Imposed
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Loads: Imposed
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Loads: Imposed
TBM
• Thrust
• Back Up
• Grouting
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Longitudinal / Radial Joints
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Longitudinal / Radial Joints
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Longitudinal / Radial Joints
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Longitudinal / Radial Joints
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Longitudinal / Radial Joints
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Longitudinal / Radial Joints
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Longitudinal / Radial Joints
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Longitudinal / Radial Joints
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Longitudinal / Radial Joints
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Longitudinal / Radial Joints
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Longitudinal / Radial Joints
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Longitudinal Behavior
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Longitudinal Behavior
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Longitudinal Behavior
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Longitudinal Behavior
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