Predicting structural disasters with radar interferometry

Conference paper (2015)

Authors

K.C. Terwel Steel & Composite Structures - CEG
R.F. Hanssen Mathematical Geodesy and Positioning - CEG
Research Group
Steel & Composite Structures (CEG) (TU Delft)
Copyright: © 2015 K.C. Terwel, R.F. Hanssen, H Waning
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Published Date

2015

Language

English

Reuse Rights

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Faculty

Civil Engineering & Geosciences

Department

Engineering Structures

Research Group

Steel & Composite Structures

Abstract

Radar interferometry is a technique which can observe the earth’s surface during day and night time. It makes uses of thousands of pulses per second that are transmitted by satellites and reflected by the surface of, for instance, structures. By analyzing the data it is possible to measure displacements of the surface within millimeter precision. For the building industry this might be a promising technique, for monitoring buildings or for forensic engineering. Variables that might be monitored are the displacements of roofs, of balconies or the settlements of buildings. In addition, the technique might be a tool which can be used for forensic investigations. This paper will discuss the possibilities and limitations of radar interferometry for both building monitoring and forensic engineering. The method is expected to be especially useful for measuring soil displacements and the resulting settlements of structures.

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