Tunnel Shift Engineer - QA/QC
Larsen & Toubro
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Job Description
- Quality Planning & Documentation
- Implement the Project Quality Plan, ITPs (Inspection & Test Plans), Method Statements, and Checklists specific to tunnel construction.
- Ensure all tunneling activities comply with project specifications, drawings, codes (IS, BS, ACI, EN), and client/consultant requirements.
- Maintain up-to-date revision control for all quality documents.
- Inspect and verify:
- TBM assembly & daily pre?launch checks
- Cutterhead tools, disc cutters, scrapers, brushes
- Main drive torque, pressure levels, and system parameters
- Slurry/EPB conditioning materials and their dosing
- TBM advance sequence, thrust forces, and ring build parameters
- Monitor segment installation, grout injection, and annular gap filling quality.
- Ensure correct segment type, orientation, gasket condition, and bolt torquing.
- Check for segment damage, joint opening, spalling, honeycombing, or misalignment.
- Precast Segment Quality Control
- Inspect segment delivery, handling, and storage at the tunnel portal/launching shaft.
- Check segment dimensions, surface finish, gasket alignment, lifting points, and embedded items.
- Verify segment traceability (batch number, production date, ring ID).
- Material Testing & Verification
- Conduct/monitor routine testing:
- Concrete slump & compressive strength
- Shotcrete rebound, thickness, core tests
- Grout pressure, density, viscosity
- Rock bolt pull-out tests
- Ensure all materials have valid MTCs, approvals, and compliance certificates.
- Verify excavation profiles using total station/laser scanning.
- Check TBM guidance system readings and ring alignment.
- Confirm tunnel geometry within tolerance (convergence, clearance, grade, alignment).
- Identify, report, and record any Non-Conformance Reports (NCRs).
- Coordinate with construction teams to implement corrective actions.
- Verify rectification works and close NCRs with proper documentation.
- Prepare:
- Daily QA/QC reports
- Checklists and inspection reports
- Test reports
- Tunnel segment installation records
- Grouting logs & as-built documentation
- Maintain systematic filing for audits and client verification.
- Ensure compliance with tunnel safety standards (confined space, ventilation, gas detection).
- Verify certification of lifting equipment used for precast segments.
- Support HSE team in incident investigation involving quality issues.
- Interface with:
- Client/consultant QA/QC teams
- TBM manufacturer representatives
- Survey, material testing lab, and construction teams
- Attend quality meetings and represent QA/QC department.
About The Company
Larsen & Toubro
Larsen & Toubro is an Indian multinational engaged in EPC Projects, Hi-Tech Manufacturing and Services. It operates in over 50 countries worldwide. A strong, customer-focused approach and the constant quest for top-class quality have enabled L&T to attain and sustain leadership in its major lines of business for over eight decades. Corporate Sustainability: L&T was the first company in India in the engineering & construction space to publicly disclose its sustainability performance. Our Integrated Report, which tracks the sustainability performance of the organisation and its inter-connectedness with the financial performance, showcases how L&T is adding value to its stakeholders. Our technological capabilities enable us to reach various nodes and build a network spanning products, processes, employees, environment and community. This enables a more holistic consideration of actions, outcomes and impact, which in turn accelerates and amplifies returns across all capitals - Financial, Natural, Human, Manufacturing, Intellectual and Social & Relationship.
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