Deliver structural design and analysis for tunnel and underground works (TBM, Cut & Cover, NATM), with strong capability to manage geotechnical inputs and ground–structure interaction assumptions. The role supports design development from concept to detailed/IFC, under the guidance of the Lead Tunnel Engineer.
- 6 to 8 Years of experience
- Prepare structural design for underground structures including:
- TBM tunnels (segmental lining design checks, joints/gaskets assumptions, ring build, local openings, cross-passages interfaces)
- Cut & Cover tunnels (tunnel box, roof/slab/walls, construction staging effects, temporary works design inputs)
- NATM tunnels (primary and secondary lining concepts, ground classes, sequential excavation stages, support measures coordination)
- Perform engineering calculations and analysis using appropriate methods (hand calcs + software), including load combinations, construction stages, serviceability checks, durability provisions, and design reporting.
- Coordinate and interpret geotechnical deliverables and integrate them into structural design:
- Review GIR/GDR, borehole logs, lab test results, groundwater levels, and derived parameters
- Understand and apply soil/rock models and key parameters (γ, φ, c, Su, E, ν, K0, permeability, rock mass classification)
- Define and validate ground loads for tunnels: overburden, surcharge, lateral earth pressures, groundwater pressures, consolidation effects where applicable
- Support assessments for settlement, heave, face stability, basal stability, and impact on adjacent utilities/structures (with geotechnical team)
- Participate in defining instrumentation & monitoring requirements and trigger levels, where required for design assumptions
- Support analysis and coordination for temporary works and construction methodology impacts (staged excavation, dewatering assumptions, support sequencing, TBM construction load cases).
- Prepare and check drawings/design deliverables with BIM/CAD teams: typical sections, reinforcement concepts, waterproofing interfaces, openings, embedded items, and cross-discipline interfaces (MEP/architecture).
- Contribute to technical inputs: design basis notes, risk registers (geotechnical/design risks), RFI responses, and coordination minutes.
- Provide construction support as needed: review method statements (design-related), respond to RFIs, and support design changes/optimizations.