Modelling of Tunnels construction by Dr Tony Swain

The following sequence of images does not show all loading blocks in SAGE-CRISP. Load blocks in which only consolidation time is applied are not shown.


Stage 1 Excavate LHS Pilot (5hrs), also apply free drainage at top ground surface

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Stage 2 Shotcrete LHS Pilot (4hrs), followed by 2 week consolidation

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Stage 3 Excavate RHS Pilot (5hrs)

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Stage 4 Shotcrete RHS Pilot (4hrs) followed by 8 week consolidation

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Stage 5 Excavate LHS station tunnel (6hrs)

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Stage 6 Shotcrete LHS station tunnel (4hrs) followed by 40 days consolidation

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Stage 7 Excavate RHS station tunnel (6hrs)

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Stage 8 Shotcrete RHS station tunnel (4hrs) followed by 40 days consolidation

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Stage 9 Apply permanent lining LHS tunnel (3hrs) followed by 40 days consolidation

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Stage 10 Apply permanent lining RHS tunnel (3hrs) followed by 40 days consolidation

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Stage 11 Excavate crown of concourse tunnel (4hrs)

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Stage 12 Shotcrete of crown of concourse tunnel (2.5hrs) followed by 6 days consolidation

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Stage 13 Excavate bench and invert of concourse tunnel (6hrs)

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Stage 14 Shotcrete bench and invert of concourse tunnel (4hrs), followed by 3 months consolidation

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Stage 15 Construct inner lining of concourse tunnel, followed by 50 years consolidation

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Stage 16 Simulate degrading of shotcrete followed by another 50 years consolidation

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Go on to see some results (6 images)