Mapping deformations using InSAR

• Map errain deformations and slope instabilities on sites in early phases of construction – indicative and preliminary geotechnical survey. 
• Increase the effectiveness of engineering and geological assessments 
• Optimize the placement of probes, geophysical profiles and other geotechnical measuring elements in follow-up survey phases 
• Compare risks across variants with respect to existing instabilities
• Add temporal context to your existing monitoring network with InSAR measurements. 
• Observe the stability of surrounding slopes, substrates and objects during construction and under operation
• Identify hotspots for road and rail embankment deformations using blanket observations of long stretches, or targeted monitoring of hard-to-reach points. 
• Factor in existing deformations when setting maintenance and reconstruction priorities

We use our own InSAR process workflow for retrospective analysis and proactive monitoring of deformations in infrastructure and its vicinity to build an early warning system. We calibrate warning reports with customers and our results complement standard geodetic measurements from manometers, inclinometers and meteorological data at all stages of geotechnical surveys. For pinpoint determination of displacement vectors, we monitor areas from multiple directions – satellite orbits. If necessary, we design a network of artificial corner reflectors to be installed on-site attached to buildings or placed in the surrounding area.

• Obtain a stability passport prior to construction to aid in the resolution of possible disputes

• Check surface infrastructure and building stability when boring tunnels in urban areas

• Evaluate drainage impact on surface stability in all construction phases

• View geotechnical risk profiles for constructions and planned development sites in undermined areas

• Detect critical points in time, evaluate impact of potential damages and implement effective measures.

Large-scale mapping of terrain subsidence dynamics caused by undermining, decrease in mining, and tunnel boring. Using InSAR monitoring and TerraSAR-X / PAZ satellite system data allows us to effectively monitor changes with high precision – with accuracy in millimeters per year.

Detailed assessment of geotechnical risks in urban areas by evaluating the influence of differential subsidence for individual buildings using a high-density network of measured points.

Areas with a lower density of measured points or for more extensive subsidence basins, such as areas of planned development, geotechnical risks are evaluated in tension and compression bands.

• Accurately plot long-term movements of bridge segments, and detect minute anomalies and potential problems in time
• Compare the course of deformation on individual expansion segments of the bridge deck or bridge parts
• Identify terrain instabilities around bridge construction sites for a complex overview of potential external risks
• Use long-term monitoring for early detection of problems and effective maintenance planning.

We carry out systematic feasibility assessments to monitor unwanted deformations around bridge structures and propose cost-effective solutions tailored to each bridge. Monitoring unwanted deformations is one of the most complex functions that InSAR can serve. This is done by detecting anomalous deformations in various bridge segments.

We use our own proprietary certified method of feasibility assessment that takes into account periodic temperature effects and separates normal courses of deformation. Our solution is continuously developed in cooperation with Austrian research organizations such as Joaneum Research, GeoSphere, and the Austrian Institute of Technology.

• Watch how dam and reservoir levee deformations form over time and identify potential issues with their stability and integrity
• Monitor potentially dangerous slope instabilities around dams
• Relate measured deformations to water level
• Prevent disasters and optimize maintenance planning
• Identify tailing embankment areas prone to landslides or other instabilities, and reduce the risk of failure.

Using satellite interferometry, we help you accurately identify dam and related infrastructure movements to identify areas with anomalous deformations, thereby detecting potential disasters and allowing you to correlate deformations with reservoir water level oscillations. For long levees with sparse vegetation cover, we use a long time series of measurements to effectively monitor and evaluate deformation dynamics.

• Ensure area stability and suitability for future development by monitoring terrain deformations in undermined and recultivated plots
• Identify problem areas prone to landslides or other geological risks
• Set priorities, target areas that need interventions the most, and evaluate the effectiveness of your measures.

Our InSAR mapping draws on satellite data reaching back to the 1990s to generate the longest possible time series.

Take advantage of proactive InSAR monitoring, which may include the use of artificial corner reflectors for continuous monitoring and re-calibration of forecasted development in your area of interest.