TRE Altamira is at the Australian Tunnelling Conference 2022
to present InSAR for Tunnelling Operations

Tunnelling and civil engineering groundwork activities are constantly increasing due to urban development. Ground excavation activities, especially in highly urbanized areas, can lead to potential geohazards due to ground settlement associated with tunneling construction operations.
InSAR data is crucial to help assist in determining the extent and origin of ground instability, as well as monitor the surface-level impact of groundwork activities along the alignment and in the surrounding areas.
Satellite data provides useful information on 1) ground movement trends prior to operations; 2) surface movement during tunneling operations - to assess the relationship between groundworks and surface motion; and 3) post-excavation stability - to detect possible residual subsidence that might impact infrastructure.

Grand Paris Express
Grand Paris Express: Historical InSAR analysis back to 1992 prior to construction works.
©DLR e.V. 2015-2020 and © Airbus Defense and Space GmbH
TRE ALTAMIRA levelling squeesar
Comparison of measurement points coverage during constructions between conventional levelling and InSAR.
Includes material © DLR e.V. 2011-2017 and © Airbus Defence and Space 2017 all rights reserved

Spatially dense and precise results

spatially dense and precise resultsThanks to its millimetric precision and high density of measurement points, InSAR is also used to complement and calibrate real-time in-situ surveillance such as levelling, inclinometers, etc.

Non-invasive and scalable technique

non-invasive scalabilityCompletely remote, satellite InSAR is unrivaled in its ability to obtain displacement measurements over large or small areas.


cost effectiveInSAR is the only ground monitoring technique providing highly dense measurements at a fraction of the cost of other survey techniques.

Historical data

historical dataSatellite data archives extend back to 1992 and can be processed to assess past movement trends.

Our experienced and multilingual team of InSAR experts are available to answer your questions.
Feel free to contact us anytime to ask for a consultation.

Jessica Morgan
Technical Sales Representative
Country Manager - Australia and New Zealand

Tel: +61 455 154 552
Send an email

Our brochure

Civil Engineering

To learn more about InSAR for Civil Engineering, visit us here.
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