#United States #Tennessee #Infrasense #Ground Penetrating Radar #Pavement Evaluation

Infrasense Conducts Innovative 3D GPR Evaluation in Tennessee

In a significant leap for infrastructure assessment, Infrasense, a company renowned for its expertise in subsurface scanning methods, has recently completed an extensive project utilizing their 3D ground penetrating radar (3DGPR) technology. The focus of this evaluation was a 2-mile segment of asphalt concrete pavement on a major interstate in Tennessee, where concerns over potential drainage issues warranted detailed investigation.

Understanding 3D Ground Penetrating Radar Technology

3DGPR brings a revolutionary approach to subsurface analysis. Unlike conventional systems, this technology employs a multi-channel method to capture data in three dimensions. This allows for a thorough examination of the pavement layers, offering insights that were previously unattainable. The GPR sensor they used operates across a frequency range of 200 to 3,000 MHz, facilitating detailed imaging of underlying structures.

During the evaluation, Infrasense performed a dual approach: a depth analysis to ascertain the base layer's thickness and an activity analysis that identified high reflection activity (HRA). HRA can often indicate areas with elevated moisture levels, which could threaten the integrity of the pavement above.

The Evaluation Process

The evaluation process involved setting up a ground-coupled GPR sensor, which was precisely operated to ensure accurate data gathering. This system's strength lies in its ability to utilize 20 individual channels, allowing simultaneous data acquisition and reducing analysis time significantly. The synchronous distance measuring instrument, coupled with GPS technology, ensured that each data point could be accurately mapped to its geographical location.

Infrasense's team meticulously collected the 3DGPR data and subsequently analyzed it to denote regions exhibiting HRA within the pavement's base layer. The information was organized in a tabular format, which included coordinates pinpointing each identified HRA area, facilitating easy interpretation and action by road maintenance authorities.

Applications of the Findings

The data produced from this evaluation not only highlighted potential problem areas but also served as critical intelligence for infrastructure management. The results, which can be easily overlaid on existing maps through geospatial software, provide city planners and engineers with actionable information to devise maintenance and repair strategies.

By detecting possible drainage concerns and moisture issues before they manifest into significant problems, Infrasense’s evaluation helps in extending the lifespan of the pavement and ensuring the safety of motorists.

About Infrasense, Inc.

Established in 1987, Infrasense has been at the forefront of advancing technologies in subsurface evaluation and nondestructive testing. Their purpose is to extract vital information from a diverse range of structural challenges without causing damage. The company has continuously strived to enhance their methods while conducting extensive research aimed at improving the field of subsurface detection and evaluation.

Considered leaders in their field, Infrasense provides essential services to various clients across the United States, addressing the pressing need for accurate, efficient assessments of pavement and other structural components. To learn more about Infrasense and its revolutionary services, visit their website.