Overview
Detailed lining design for a metro tunnel in saturated soft ground, including staged grouting, gasket durability checks, and combined load cases for maintenance and seismic events.
Deliverables supported contractor tendering and owner technical review.
Photos & video
Lining design summary
Key load combinations and acceptance checks.
Challenges
- High external water pressure
- Soft ground convergence
- Strict settlement limits at surface
Outcomes & solutions
- Segmental lining capacity under combined loads
- Grouting and gasket specification for durability
- Independent review support package
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