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NTIS 바로가기韓國地盤工學會論文集 = Journal of the Korean geotechnical society, v.31 no.8, 2015년, pp.17 - 28
정영석 (고려대학교 건축사회환경공학부) , 사희동 (고려대학교 건축사회환경공학부) , 강성훈 (고려대학교 건축사회환경공학부) , 오세붕 (영남대학교 건설시스템공학과) , 이종섭 (고려대학교 건축사회환경공학부)
The purpose of this study is to measure the volumetric water content of unsaturated soils during drying and wetting process by using volumetric pressure plate extractor (VPPE) incorporated with time domain reflectometry (TDR). The VPPE consists of a pressure cell, a pressure regulator, a burette sys...
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핵심어 | 질문 | 논문에서 추출한 답변 |
---|---|---|
불포화토는 어떤 구조로 이루어져 있는가? | 그러나, 불포화 지반을 포화상태로 가정하면 보수적인 설계가 될 뿐만 아니라, 불포화토의 역학적 거동 특성을 반영할 수 없기에 많은 문제점이 발생한다. 불포화토는 흙 입자와 물로 구성된 포화토와 달리 흙입자-물-공기 3상 구조로 이루어져 있기 때문에 포화토와 거동 특성 및 해석의 궤가 다르기 때문이다(Byun etal., 2012; Hwang et al. | |
포화토는 어떤 요소로 구성되는가? | 그러나, 불포화 지반을 포화상태로 가정하면 보수적인 설계가 될 뿐만 아니라, 불포화토의 역학적 거동 특성을 반영할 수 없기에 많은 문제점이 발생한다. 불포화토는 흙 입자와 물로 구성된 포화토와 달리 흙입자-물-공기 3상 구조로 이루어져 있기 때문에 포화토와 거동 특성 및 해석의 궤가 다르기 때문이다(Byun etal., 2012; Hwang et al. | |
지표부근의 지반은 대부분 불포화 상태로 존재하나, 지반 구조물 설계 시 포화 지반이라 가정하는 이유는 무엇인가? | 일반적으로, 지표부근의 지반은 대부분 불포화 상태로 존재하나, 지반 구조물 설계 시 포화 지반이라 가정하는 것이 대부분이다. 이는 포화상태로 가정하는 것이 간단하고 안전성을 확보할 수 있기 때문이다(Song etal., 2010). |
Amato, M. and Ritchie, J. T. (1995), "Small Spatial Scale Soil Water Content Measurement with Time-domain Reflectometry", Soil Science Society of America Journal, Vol.59, No.2, pp.325-329.
Assouline, S. (2006), "Modeling the Relationship between Soil Bulk Density and the Hydraulic Conductivity Function", Vadose Zone Journal, Vol.5, No.2, pp.697-705.
ASTM D854-10 (2005), "Standard Test Methods for Specific Gravity of Soil Solids by Water Pyconometer", Annual Book of ASTM Standard, Vol.04.08.
ASTM D4253-00 (2006), "Standard Test Methods for Maximum Index Density and Unit Weight for Soils Using a Vibration Table", Annual Book of ASTM Standard, Vol.04.08
ASTM D4254-00 (2006), "Standard Test Methods for Minimum Index Density and Unit Weight for Soils Calculation of Relative Density", Annula Book of ASTM Standard, Vol.04.08
Barbour, S. L. (1998), "Nineteenth Canadian Geotechnical Colloquium: The Soil-water Characteristic Curve: A Historical Perspective", Candadian Geotechnical Journal, Vol.35, No.5, pp.873-894.
Bear, J. (1979), "Hydraulic of Groundwater", McGraw-Hill, New York, pp.567.
Benson, C. and Bosscher, P. (1999), "Time-domain Reflectometry in Geotechnics: A Review", Nondestructive and Automated Testing for Soil and Rock Properties, STP 1350, ASTM, W. Marr and C. Farihurst, Eds., pp.113-136.
Byun, Y. H., Cho, S. H., Yoon, H. K., Choo, Y. W., Kim, D. S., and Lee, J. S. (2012), "Void Ratio Evaluation of Unsaturated Soils by Compressional and Shear Waves", Journal of the Korean Geotechnical Society, Vol.28, No.12, pp.41-51.
Cassel, D. K., Kachanoski, R. G., and Topp, G. C. (1994), "Practical Considerations for Using a TDR Cable Tester", Soil technology, Vol.7, No.2, pp.113-126.
Davis, J. L. and Chudobiak, W. J. (1975), "Relative Permittivity Measurements of a Sand and Clay Soil in Situ", Geological Survey of Canada, Paper, pp.361-365.
Fredlund, D. G. and Rahardjo, H. (1993), "Flow Lows", Soil Mechanics for Unsaturated Soils, John Wiley & Sons, New York, pp.107-123.
Fredlund, D. G. and Xing, A. (1994), "Equations for the Soil-water Characteristic Curve", Canadian Geotechnical Journal, Vol.31, No.4, pp.521-532.
Fredlund, D. G. (2002), "Use of Soil-water Characteristic Curve in the Implementation of Unsaturated Soil Mechanics", Proceedings of the 3rd International Conference on Unsaturated Soils, Recife, pp.20-23.
Fredlund, D. G. (2006), "Unsaturated Soil Mechanics in Engineering Practice", Journal of Geotechnical and Geoenvironmental Engineering, Vol.132, No.3, pp.286-321.
Heimovaara, T. J. (1993), "Design of Triple-wire Time Domain Reflectometry Probes in Practice and Theory", Soil Science Society of America Journal, Vol.57, No.6, pp.1410-1417.
Herkelrath, W. N., Hamburg, S. P., and Murphy, F. (1991), "Automatic, Real-time Monitoring of Soil Moisture in a Remote Field Area with Time Domain Reflectometry", Water Resources Research, Vol.27, No.5, pp.857-864.
Hillel, D. and Mottas, J. (1966), "Effect of Plate Impedance, Wetting Method and Aging on Soil Moisture Retention", Soil Science, Vol.102, No.2, pp.135-139.
Hillel, D. (1971), "Soil and Water", Academic Press, New York.
Hillel, D. (1998), "Environmental Soil Physic", Academic Press, San Diego, USA.
Hoekstra, P. and Delaney, A. (1974), "Dielectric Properties of Soils at UHF and Microwave Frequencies", Journal of Geophysical Research, Vol.79, No.11, pp.1699-1708.
Hwang, C. S. and Kim, T. H. (2004), "Determination of the Unsaturated Hydraulic Conductivity of Function", Journal of the Korean Geotechnical Society, Vol.20, No.3, pp.47-51.
Hwang, W. K., Kang, K. M., Kim, T. H., and Song, Y. S. (2012), "Effect of Soil Structure on Soil-water Characteristic in Unsaturated Soil", Journal of the Korean Geotechnical Society, Vol.28, No.2, pp.33-42.
Jones, S. B., Wraith, J. M., and Or, D. (2002), "Time Domain Reflectometry Measurement Principles and Applications", Hydrological Processes, Vol.16, No.1, pp.141-153.
Kumar, S. and Malik, R. S. (1990), "Verification of Quick Capillary Rise Approach for Determining Pore Geometrical Characteristics in Soils of Varying Texture", Soil Science, Vol.150, No.6, pp.883-888.
Lin, Y., Schanz, T., and Fredlund D. G. (2009), "Modified Pressure Plate Apparatus and Column Testing Device for Measuring SWCC of Sand", Geotechnical Testing Journal, ASTM, Vol.32, No.5, pp.1-15.
Lu, N. and Likos, W. J. (2004), "Unsaturated Soil Mechanics", John Wiley and Sons Inc., Hoboken, New Jersey.
Nishimura, T., Koseki, J., Fredlund, D. G., and Rahardjo, H. (2012), "Microporous Membrane Technology for Measurement of Soil-water Characteristic Curve", Geotechnical Testing Journal, ASTM, Vol.35, No.2, pp.201-208.
O'Connor, K. M. and C. H. Dowding (1999), "Geomeasurements by Pulsing TDR Cables and Probes", CRC Press.
Padilla, J. M., Perera, Y. Y., Houstion, W. N., Perez, N., and Fredlund, D. G. (2006), "Quantification of Air Diffusion through High Air-entry Ceramic Disk", Proceedings of the Fourth International Conference on Unsaturated Soils, UNSAT 2006, Carefree, Arizona, April 2-6, Vol.2, pp.1852-1863.
Ranjan, R. S. and Domytrak, C. J. (1997), "Effective Volume Measured by TDR Miniprobes", Transactions of the ASAE, Vol.40, No.4, pp.1059-1066.
Robinson, D. A., Jones, S. B., Wraith, J. M., Or, D., and Friedman, S. P. (2003), "A Review of Advances in Dielectric and Electrical Conductivity Measurement in Soils Using Time Domain Reflectometry", Vadose Zone Journal, Vol.2, No.4, pp.444-475.
Soilmoisture Equipment Corporation (2005), "Volumetric Pressure Plate Extractor and Hysteresis Attachments", Operating Instructions: Model 1250, Santabarbara, CA, USA, pp.1-12.
Song, Y. S., Lee, N. W., Hwang, W. K., and Kim, T. H. (2010), "Construction and Application of an Automated Apparatus for Calculating the Soil-water Characteristic Curve", Journal of Engineering Geology, Vol.20, No.3, pp.281-295.
Tinjum, J. M., Benson, C. H., and Blotz, L. R. (1997), "Soil-water Characteristic Curves for Compacted Clays", J. Geotech Geoenviron. Eng., Vol.123, No.11, pp.1060-1069.
Topp, G. C., Davis, J. C., and Annan, A. P. (1980), "Electromanetic Determination of Soil Water Content: Measurements in Coaxial Transmission Lines", Water Resources Research, Vol.16, No.3, pp.574-582.
Vanapalli, S. K., Fredlund, D. G., and Pufahl, D. E. (1999), "The Influence of Soil Structure and Stress History on the Soil-water Characteristics of a Compacted Till", Geotechnique, Vol.49, No.2, pp.143-159.
White, I. and Zegelin, S. J. (1995), "Electric and Dielectric Methods for Monitoring Soil-water Content", Handbook of vadose zone characterization and monitoring, pp.343-385.
Yang, H., Rahardjo, H., Leong, E. C., and Fredlund, D. G. (2004), "Factors Affecting Drying and Wetting Soil-water Characteristic Curves of Sandy Soils", Canadian Geotechnical Journal, Vol.41, No.5, pp.908-920.
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