한국지반공학회논문집 (Journal of the Korean Geotechnical Society)

  • 제20권7호
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  • Pages.91-98
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  • 2004
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  • 1229-2427(pISSN)
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  • 2288-646X(eISSN)
한국지반공학회 (Korean Geotechnical Society)
권호 표지

초음파 투사에 따른 흙시료 내 투수속도의 증가와 그 영향인자의 변화

Ultrasonically Enhanced Liquid Flow through Porous Media and Variance of Influencing Factors

  • 발행 : 2004.09.01
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초록

초음파 투사에 의한 흙시료 내 투수속도 증가에 관한 연구를 특별히 제작되어 준비된 실내실험 기구를 이용하여 수행하였다. 이 현상의 정확한 메커니즘을 이해하려는 노력의 일환으로 본 연구에서는, 초음파 투사시 투수속도 변화를 지배하는 영향인자를 도출하였다. 그리고, 다양한 실험 조건 하(시료의 종류, 초음파 조사의 유무, 그리고 온도 등)에 초음파에 의한 투수속도의 증가와 함께 이에 대한 메커니즘을 영향인자의 변화를 통해 살펴보았다. 연구결과에 의하면 초음파에 의해 시료내의 간극수 흐름이 크게 빨라졌으나 시험조건에 따라 그 값의 변화 폭이 크게 나타났다.

This paper presented results of the laboratory tests conducted to investigate ultrasonically enhanced flow rate using specially designed and fabricated equipment. Influencing factor, ${\alpha}_i$ was verified to investigate the effect of ultrasound on soil matrix and flowing liquid. The test conditions involve soil types, temperature and ultrasonic energy. The test results indicate that ultrasound enhances the flow rate significantly. The degree of enhancement and the values of influencing factors, however, vary with test conditions.

키워드

참고문헌

  1. Aarts, A.C.T., Ooms G., Bil KJ., and Bot E.T.G. (1998), 'Enhancement of Liquid Flow Through a Porous Medium by Ultrasonic Radiation', Society of Petroleum Engineers, SPE 50594
  2. Amer, A. M. and Award A. A. (1974), 'Permeability of Cohesioless Soils', Journal of Geotechnical Engineering Division, ASCE, Vol.100, No.GT12, pp.1309-1316
  3. Berliner, S. III (1984), Power vs. Intensity in sonication, American Biotechnology Laboratory, 2(1), pp.46-52
  4. Berliner, S. III (1987), Improving sonication techniques in CLP organic analysis and solid waste extraction, U.S. EPA $3^{rd}$ Annual; Symposium on Solid Waste Testing Quality Assurance, U.S. EPA, Washington, DC
  5. Darcy, H. (1856), Les Fontaines Publiques de la Ville de Dijon, Dalmont, Paris
  6. Parker, G. G., and Stringfield, V. T. (1950), Effects ofEarthquakes, trains, tides, winds, and atmospheric pressure changes on water in the geologic formation ofSouthern Florida: Economic Geology, 45, pp.441-460
  7. Poesio P., Ooms G., Barake S., and Bas F.v.d. (2002), 'An investigation of the influence of acoustic waves on the liquid flow through a porous material', Journal Acoustical Society America, 111(5), pp.2019-2025 https://doi.org/10.1121/1.1466872
  8. Poesio P., Ooms G., Schraven A., and Bas F.v.d. (2002), 'Theo-retical and experimental investigation of acoustic streaming in a porous material', Physical review E66, 016309(9)
  9. Reddi, L. N. and Challa, S. (1994), 'Vibratory mobilization of immiscible liquid ganglia in sands', Journal of Environmental Engineering, Vol.120, No.5, pp.1170-1190 https://doi.org/10.1061/(ASCE)0733-9372(1994)120:5(1170)
  10. Reddi, L. N. and Wu, H. (1995), 'Mechanisms involved in vibratory destabilization of NAPL ganglia in sands', Journal of Environmental Engineering, Vo1.122, No.12, pp.1115-11l9 https://doi.org/10.1061/(ASCE)0733-9372(1996)122:12(1115)
  11. Voytov, G. I., Osika, D. G., Grechukhina, T. G., and Plotnikov, I. A. (1972), Some geological and geochemical consequences of the Daghestan earthquake of May 14, 1970, Transactions (Doklady) of the USSR Academy of Science, Earth Science Sections, 202, pp.576-579