Planys conducted structural audit of the well foundation of a critical highway bridge in West India. ROV Beluga was deployed for this operation consisting of multiple scope of work and completed in 10 days.

Scope of Work: Complete structural audit of a bridge including underwater visual inspection of 11 Well foundations, UPV test for a total 936 points and chemical tests for 14 points of various parts of a bridge including substructure, slabs and joints.

Planys Solution: The inspection was performed using Planys’ ROV Beluga equipped with high resolution camera, turbid water module, altimeter and depth sensor.

1. Over 120 anomalies were identified and categorised into minor, moderate & major based on the size of the defects that included cracks, exposed rebars, honeycomb formations, pinholes.
2. UPV points taken were categorised as doubtful, medium, good and excellent points as per IS 13311 (Part – 1) – 1992 and chemical tests reported as per IS 2720 (Part 26).
3. Planys’ proprietary image enhancement algorithm was used to enhance the videos taken in the extremely turbid waters
4. All anomalies/defects were plotted against geo-tagged CAD drawing of every section on the Planys Analytics Dashboard (PAD) with localised click-to-view video.

Images show site setup & ROV in action during inspection; UPV of superstructure being taken

Images show dimensions extracted with Planys ROV of cavity, exposed rebars and corrosion

“Hot-spot” map showing concentration of a large number of anomalies on a single well foundation and UPV test observations