Reducing Highway Maintenance Costs in Texas
As water scarcity and environmental concerns grow, innovative methods for monitoring and managing aquatic ecosystems are increasingly essential. Interferometric Synthetic Aperture Radar (InSAR) offers a groundbreaking approach to water quality assessment, enabling remote, efficient, and accurate monitoring of reservoirs and other water bodies.
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In Cyprus, InSAR technology has been applied to assess the water quality of two major reservoirs: the Asprokremmos and Kouris reservoirs. These studies highlight the transformative potential of satellite-based measurements, providing a cost-effective and expansive alternative to traditional field sampling techniques. By analysing satellite data, researchers gained detailed insights into the reservoirs' water quality, contributing to better water resource management and environmental conservation.
A Case Study on Geogrid Stabilisation and InSAR Analysis
The Challenge of Expansive Soils
Understanding Expansive Soils
Expansive soils contain high proportions of clay minerals, such as montmorillonite, which exhibit dramatic volume changes in response to moisture. When water infiltrates the soil, it causes swelling, exerting upward pressure on the road surface. Conversely, during dry periods, the soil contracts, leading to voids beneath the pavement. Over time, this cycle of heave and subsidence weakens road structures, resulting in:
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Cracks and potholes that compromise safety.
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Increased maintenance and resurfacing costs.
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Accelerated deterioration of infrastructure.
Regional Impact in Texas
Texas is home to vast areas of expansive soils, particularly in regions like the Blackland Prairie and parts of central and eastern Texas. Roads constructed in these areas experience significant performance variability. Despite consistent geological conditions, some sections of highways remain relatively stable, while others require frequent repairs.
This inconsistency poses a critical challenge: how can engineers accurately identify the most vulnerable areas for intervention? Moreover, once a stabilisation method is implemented, how can its effectiveness be validated in a cost-efficient and timely manner?
Expansive soils present a persistent challenge to highway infrastructure, particularly in regions like Texas. The trial conducted by Tensar and the University of Texas at Austin demonstrates the transformative potential of combining geogrid stabilisation with InSAR technology.
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By providing accurate, cost-effective insights into ground movement and validating the effectiveness of stabilisation measures, this approach offers a scalable solution to one of the most pressing issues in infrastructure management. As the need for resilient infrastructure grows, integrating geotechnical and remote sensing innovations will be essential for building a more sustainable future.
For more information on how InSAR can revolutionise infrastructure monitoring, contact Geofem today.
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