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GPR monitoring of volumetric water content in soils applied to highway construction and maintenance

K. Grote, S. Hubbard and Y. Rubin
GPR monitoring of volumetric water content in soils applied to highway construction and maintenance (in Near-surface geophysics, Lawrence M. Gochioco (prefacer) and Tom Wilson (prefacer))
Leading Edge (Tulsa, OK) (May 2002) 21 (5): 482-485, 504

Abstract

Detailed knowledge of the subsurface water content is important for highway design, maintenance, and repair. Transportation engineers can monitor the water content of subasphalt soils to estimate the soil stiffness as an index of the likely performance of a pavement and to evaluate the need for subsurface drainage retrofits. Conventional approaches for measuring water content include gravimetric sampling, time-domain reflectometry (TDR), and neutron probes, all of which are time-consuming and invasive. Additionally, each of these methods provides only point measurements; because soil moisture content can vary greatly over space and time, point measurements are of limited value when surveying over a large area and over a period of time. An alternative to these conventional methods is ground-penetrating radar (GPR), which can be used to quickly collect continuous, high-resolution water content estimates. GPR techniques can be used to estimate water content due to the sensitivity of electromagnetic velocity to water content.


ISSN: 1070-485X
EISSN: 1938-3789
Serial Title: Leading Edge (Tulsa, OK)
Serial Volume: 21
Serial Issue: 5
Title: GPR monitoring of volumetric water content in soils applied to highway construction and maintenance
Title: Near-surface geophysics
Author(s): Grote, K.Hubbard, S.Rubin, Y.
Author(s): Gochioco, Lawrence M.prefacer
Author(s): Wilson, Tomprefacer
Affiliation: University of California at Berkeley, Department of Civil and Environmental Engineering, Berkeley, CA, United States
Affiliation: CONSOL R&D, Library, PA, United States
Pages: 482-485, 504
Published: 200205
Text Language: English
Publisher: Society of Exploration Geophysicists, Tulsa, OK, United States
Accession Number: 2002-045963
Categories: Engineering geologyApplied geophysics
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus.
Secondary Affiliation: West Virginia University, USA, United StatesLawrence Berkeley National Laboratory, USA, United States
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data supplied by Society of Exploration Geophysicists, Tulsa, OK, United States
Update Code: 200215
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