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http://dx.doi.org/10.12814/jkgss.2013.12.2.001

Water Content Calibration of Time-Domain Reflectometry Probe Using Laboratory Model Test  

Shin, Eun Chul (Dept. of Civil and Environmental Engineering, Incheon National University)
Ryu, Byung Hyun (Dept. of Civil and Environmental Engineering, Incheon National University)
Park, Jeong Jun (Dept. of Civil and Environmental Engineering, Incheon National University)
Publication Information
Journal of the Korean Geosynthetics Society / v.12, no.2, 2013 , pp. 1-11 More about this Journal
Abstract
Water content of subgrade soil in water supply systems has a large effect on performance. Many researchers lately make use of time-domain reflectometry (TDR) probes to measure the soil water content of subgrade soil from monitoring. The laboratory calibration test of TDR probe should be performed with soil field, because TDR probe can cause an error by type, gradation, density, and temperature of soil. This study shows the laboratory calibration test using TDR CS616, TDR-P3, TDR-T3. The calibration equations of TDR were then proposed. It was confirmed from the study that the data of TDR probe monitored in field could be used to estimate the freezing, unfrozen water content, and matric suction of soil.
Keywords
Water content calibration; Water supply line; Time-domain reflectometry (TDR); Volume water content; CS616;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Kim, B. I. and Jeon S. I. (2005), "Development of Calibration Model and Analysis of Soil Water Content using Time - Domain Refelctometry Probe in LTPP Sections", Journal of the Korean Society Road Engineers, Vol. 7, No. 4, pp.103-112.   과학기술학회마을
2 Brian, K. D., Imad, L. A., and Amara Loulizi (2000), "Laboratory Calibration and Field Verification of Soil Moisture Content Using Two Types of Time-Domain Reflectometry Probes", TRB 79th Annual Meeting, No. 001027.
3 Davis, J. L. and Chudobiak, W. J. (1975), "In-Situ Meter for Measuring Relative Permittivity of Soil," Geol. Surv. Can. Pap, Vol 75-1A, 75-79.
4 Hossain, M., Kotdwala, S. J., Long, B. and Gisi, A. J. (1997), "Subgrade Moisture Monitoring Using Time Domain Reflectometry," Transportation Research Board 76th Annual Meeting.
5 Jiang, Y. J. and Tayabji, S. D. (1999), "Evaluation of In-Situ Moisture Content at LTPP Seasonal Monitoring Program Sites," TRB 78th Annual Meeting, No. 990395.
6 Topp, G. C., Davis, J. L. and Annan, A. P. (1980), "Electromagnetic Determination of Soil Water Content: Measurements in Coaxial Transmission Lines," Water Resources Research, Vol. 16, No. 3, pp.574-582.   DOI   ScienceOn
7 Topp, G. C. and Davis, J. L. (1985), Time Domain Reflectometry (TDR) and Its Application to Irrigation Scheduling, In Advances in Irrigation, Vol. 3, Daniel Hilled(ed), Academic.
8 Valdez, S. F. (1991), Subgrade Resilient Modulus Evaluation, FHWA-GA-91-8801.