Simulation, modeling, and application of ground-penetrating radar in pavement dielectric constant and thickness measurement

Huichun Xing; Jing Li; Xuemin Chen; C. Richard Liu; Brian Michalk; Carl Bertrand; Ed Oshinski; German Claros; Hua Chen

doi:10.1117/12.660101

30 March 2006 Simulation, modeling, and application of ground-penetrating radar in pavement dielectric constant and thickness measurement

Huichun Xing, Jing Li, Xuemin Chen, C. Richard Liu, Brian Michalk, Carl Bertrand, Ed Oshinski, German Claros, Hua Chen

Author Affiliations +

Proceedings Volume 6167, Smart Structures and Materials 2006: Smart Sensor Monitoring Systems and Applications; 61671M (2006) https://doi.org/10.1117/12.660101
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2006, San Diego, California, United States

Abstract

Ground penetrating radar (GPR) is a non-destructive and continuous electromagnetic (EM) detection technique for civil and environmental parameter measurement applications such as pavement condition and soil property characterization. This technique is based on the measurement of the travel time and reflection amplitude of a short EM pulse, which are functions of medium properties. Most GPR measurements of sub-layer thickness are conducted based on the priori knowledge of dielectric constants of the pavement materials. And actually, the dielectric constant is an unknown but important parameter in the applications. For some applications, the dielectric constants are estimated based on manuals or tables that can only provide rough results not the real changes of pavement materials. In some other cases, the dielectric constants are estimated by using the surface reflectivity information. However, such method is not applicable for rough surface and ground-coupled GPR applications. Compared to the air-launching GPR mode, the ground-coupled mode is more complicated because of the coupling effect between the antennas and ground. In this paper, numerical simulations about the wave propagation paths of the ground-coupled GPR are conducted. The simulation results reveal some interesting ray paths of GPRs in the ground-coupled mode. And based on the simulation results, new methods are introduced for calculating the pavement dielectric constant and thickness directly from the ground-coupled GPR data. Finally, applications and field test results for pavement evaluation are presented.

Citation Download Citation

Huichun Xing, Jing Li, Xuemin Chen, C. Richard Liu, Brian Michalk, Carl Bertrand, Ed Oshinski, German Claros, and Hua Chen "Simulation, modeling, and application of ground-penetrating radar in pavement dielectric constant and thickness measurement", Proc. SPIE 6167, Smart Structures and Materials 2006: Smart Sensor Monitoring Systems and Applications, 61671M (30 March 2006); https://doi.org/10.1117/12.660101

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available