Nasser City Project, Assuit – Normal Cavities Inspection

Problem:

A cavity was found by chance while constructing a new road.

Project Objective:
Mapping a normal cavity that exists in a new road path.

Radargram Interpretation:
The GPR survey was planned to cover the 33 meters road path width with 10 parallel profiles with 3 meters spacing.

Highlighted areas on the radargram shows the cavity beneath the new road path. Cavity is revealed in the first 4 radargram with maximum length 20 meters at profile A-1 and decreased to reach 4 meters at profile A-4, before it vanishes at profile A-5.