1. Alignment Control:
aEstablish and maintain TBM reference points and control networks.
bMonitor TBM position and orientation continuously using guidance systems (e.g., VMT navigation).
cEnsure compliance with design alignment and tolerances.
dExperiend in wriggle survey
2. Surveying Operations:
aPerform precise measurements in challenging underground conditions.
bConduct pre- and post-excavation surveys for tunnel rings, invert, and crown.
cSet out tunnel centerline, ring build positions, and cross passages.
3. Data Management:
aRecord and process survey data using specialized software
bPrepare daily reports on TBM position, advance, and deviations.
cMaintain accurate as-built records for tunnel segments.
4. Coordination:
acoordinate with TBM operators, engineers, and construction managers to ensure smooth operations.
bProvide guidance during ring building and segment installation.
5. Quality & Safety:
aEnsure survey works comply with project QA/QC standards.
bFollow safety protocols for working in confined spaces and slurry environments.
