1. Establish survey control network.
2. Generate design tunnel alignment.
3. Setting out for TBM launching and any relevant works at site.
4. Ensuring the TBM Guidance System is always using accurate reference coordinates at all times.
5. Wriggle survey to determine tunnel eccentricity and shape.
6. Check and calibrate survey instruments to maintain accuracy
7. Conducting as-built reports.
8. Detect discrepancies between construction drawings and site condition.
9. Ensuring the tunnel survey control brackets, benchmarks are installed in accordance with the relevant methodology and instruction.
10. Liaise with clients/authorities on technical issues.
11. Possess strong communication skills with the ability to work effectively in a team
10. Any other duties assigned
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