Non-destructive measurements of unsaturated seepage flow using surface ground-penetrating radar

Yuji Takeshita, S. Morikami, T. Yamashita, S. Kuroda, T. Morii, M. Inoue

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Surface ground-penetrating radar (GPR) was assessed as a non-destructive method to measure the temporal and spatial variability of unsaturated seepage flow under uniform wetting conditions on a homogeneous sandy soil. GPR profile survey with 400MHz antenna was conducted. GPR reflected wave from advancing wetting front during uniform field infiltration experiments was used to map the wetting front depth variability with time. The dielectric constant of soil measured by vertical soil moisture probe below the ground surface was used as standard measures of soil moisture to compare with the GPR estimated unsaturated seepage flow behavior. The utility of our proposed GPR profile survey was demonstrated by using numerical seepage flow FEM analysis of field infiltration experiments. There was good agreement between computed and measured wetted zone movements in two-dimensional unsaturated seepage flow. Traceability of the wetting front depth variability with time was found by GPR profile survey.

Original languageEnglish
Title of host publicationGeotechnical Special Publication
Pages211-217
Number of pages7
Edition202 GSP
DOIs
Publication statusPublished - 2010
Event2010 GeoShanghai International Conference - Experimental and Applied Modeling of Unsaturated Soils - Shanghai, China
Duration: Jun 3 2010Jun 5 2010

Other

Other2010 GeoShanghai International Conference - Experimental and Applied Modeling of Unsaturated Soils
CountryChina
CityShanghai
Period6/3/106/5/10

Fingerprint

Seepage
ground penetrating radar
seepage
Radar
wetting front
Wetting
Soil moisture
Infiltration
infiltration
soil moisture
Soils
wetting
sandy soil
antenna
Permittivity
experiment
Experiments
probe
Antennas
Finite element method

Keywords

  • Measurement
  • Nondestructive tests
  • Radar
  • Seepage

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Civil and Structural Engineering
  • Building and Construction

Cite this

Takeshita, Y., Morikami, S., Yamashita, T., Kuroda, S., Morii, T., & Inoue, M. (2010). Non-destructive measurements of unsaturated seepage flow using surface ground-penetrating radar. In Geotechnical Special Publication (202 GSP ed., pp. 211-217) https://doi.org/10.1061/41103(376)27

Non-destructive measurements of unsaturated seepage flow using surface ground-penetrating radar. / Takeshita, Yuji; Morikami, S.; Yamashita, T.; Kuroda, S.; Morii, T.; Inoue, M.

Geotechnical Special Publication. 202 GSP. ed. 2010. p. 211-217.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Takeshita, Y, Morikami, S, Yamashita, T, Kuroda, S, Morii, T & Inoue, M 2010, Non-destructive measurements of unsaturated seepage flow using surface ground-penetrating radar. in Geotechnical Special Publication. 202 GSP edn, pp. 211-217, 2010 GeoShanghai International Conference - Experimental and Applied Modeling of Unsaturated Soils, Shanghai, China, 6/3/10. https://doi.org/10.1061/41103(376)27
Takeshita Y, Morikami S, Yamashita T, Kuroda S, Morii T, Inoue M. Non-destructive measurements of unsaturated seepage flow using surface ground-penetrating radar. In Geotechnical Special Publication. 202 GSP ed. 2010. p. 211-217 https://doi.org/10.1061/41103(376)27
Takeshita, Yuji ; Morikami, S. ; Yamashita, T. ; Kuroda, S. ; Morii, T. ; Inoue, M. / Non-destructive measurements of unsaturated seepage flow using surface ground-penetrating radar. Geotechnical Special Publication. 202 GSP. ed. 2010. pp. 211-217
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