Geotechnical Assessment of High-Rise Buildings in Six Steps

Learn that a six-step iterative InSAR methodology, developed through close collaboration between InSAR and geotechnical experts, is essential for accurate geotechnical assessment of high-rise buildings in dense urban areas like Rotterdam.

Understand that raw InSAR data must be carefully validated, filtered, and corrected—for effects like concrete densification ("kruip") and seasonal/thermal influences—before being used for geotechnical analysis.

Discover that InSAR can retrospectively provide long-term, millimeter-accurate time series data on the subsidence, displacement, and tilt of high-rise buildings and their surroundings.

See that the construction of deep-foundation high-rise buildings, such as De Coopvaert, Zalmhaventoren, and Calypso, creates a measurable "subsidence bowl" and horizontal displacement in surrounding buildings.

Grasp that simplifying InSAR data into a single subsidence map without applying the full correction methodology can lead to significant misinterpretation of real geotechnical effects, with errors potentially exceeding 30-60mm over 20 years.