- 2077 Chaitra · 1 mark
Why tunnel documentation is done
Short answer
Tunnel documentation compares actual ground with predictions to verify design and adjust support, warns of unstable zones and water inflow, provides a legal record for payment and claims, and creates a permanent record for maintenance and future projects.
Why should documentation in tunnelling be carried out?
Documentation (geological mapping and recording) is done in tunnelling in order to:
- Compare the actual ground with the predicted geology and verify or revise the design.
- Select and adjust support according to the real rock class.
- Warn of unstable zones, water inflow, gas and squeezing.
- Provide a legal record for payment, claims and disputes.
- Keep a permanent record for maintenance, repairs and later projects.
✓ Answer checked by Claude Opus 5.5 (high effort)
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