1. Why are bearings a key inspection focus?
Bearings are critical components connecting the superstructure and substructure of a bridge. They bear loads long term and are difficult to inspect by conventional means; their defects directly affect bridge safety, making them a key inspection focus.
2. How are bearings captured?
RIEJIAN solves the positioning problem in GPS-denied under-bridge environments with the under-bridge autonomous navigation module, achieving centimeter-level positioning accuracy. The drone flies stably to the bearing area for HD capture. The captured data is processed by AI and mapped onto the 3D model, supporting multi-period comparison of bearing defect changes.
3. Applicable scenarios for bearing inspection
| Scenario | Method |
|---|---|
| Regular bearing inspection | Under-bridge autonomous navigation flight capture |
| Bearing defect observation | AI detection + multi-period comparison |
| Pre-replacement verification | HD imagery as evidence |
4. Applicable conditions and scenarios
- Regular inspection of under-bridge areas such as bearings and girder soffits
- Autonomous navigation operations in GPS-denied environments
- Regular updates as routine inspection data
5. Notes
The bearing area is cramped; operations must control flight distance and obstacle avoidance. Defect determination requires manual review and professional evaluation.