Journal of the Korean Geosynthetics Society (한국지반신소재학회논문집)

Korean Geosynthetics Society (한국지반신소재학회)
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Geotechnical Engineering Characteristics and Consolidation Settlement Estimation of Waste Lime Landfill

폐석회 매립지반의 지반공학적 특성 및 압밀침하량산정

  • Shin, Eun-Chul (Department of Civil and Environmental Engineering, Incheon National University) ;
  • Lee, Ae-Young (Department of Civil and Environmental Engineering, Incheon National University)
  • Received : 2016.07.22
  • Accepted : 2016.11.10
  • Published : 2016.12.30
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Abstract

The purpose of this study is to examine the consolidation characteristics of waste landfill from sodium carbonate production. The waste lime is a byproduct from the production of soda ash. The consolidation settlement of waste lime landfill was determined for waste lime specimen which obtained from the field boring. The consolidation tests are conducted for determination of the primary and secondary consolidation settlements. The waste lime is classified as an organic soil with high plasticity. As a result of an organic content test, the contents of organic matter in waste lime is much higher than that of normal clay. Finally, the total consolidation settlement of waste lime landfill is calculated by using a theoretical method and computer program for the given initial void ratio, compression index, and embankment height.

이 연구의 목적은 소다회 생산과정에서 발생한 매립지의 압밀특성을 연구하는데 있다. 소다회를 생산하는 과정에서 발생하는 부산물의 주요성분은 대부분 석회석이다. 이 연구는 우선 폐석회의 압밀특성을 파악하기 위해 시추조사를 통한 불교란 시료를 채취하여 실내실험을 실시하였다. 실험결과 폐석회는 소성이 큰 유기질토로 분류되었으며, 유기물 함유량 시험결과 폐석회에 함유된 유기물 함량은 일반 점토에 비하여 높게 나타났다. 또한, 이론적인 방법과 압밀해석 프로그램에 의하여 폐석회의 압밀침하량과 이차침하량을 산정하였다.

Keywords

References

  1. Kim, Y. T. (2005), "Axisymmetric Nonlinear Consolidation Analysis for Drainage-installed Deposit Considering Secondary Compression", Journal of Korea Geotechnical Society, Vol.21, No.3, pp.133-140.
  2. Shin, E, C., Oh Y. I. and Kim S. H. (1996), "Development of technology soft ground improvement method using waste lime", Proceeding of Korean Society of Civil Engineers, pp.487-490.
  3. Bjerrum, "Engineering geology of Norwegian normally consolidated marine clays as related to settlements of building", Geotechnique, Vol.17, No.2, pp.81-118.
  4. Hansbo, S. (1981), "Consolidation of fine-grained soils by prefabricated drains", Proc.10th International Conference Soil Mechanics Eng. Stockholm, Vol.3, paper 12/22.
  5. Jamiolkowski, M., Ladd, C. C., Germaine, J. T. and Lancellotta, R. (1985), "New developments in field and laboratory testing of soils", Proceedings of 11th ICSMFE, San Francisco, Vol.1, pp.57-153.
  6. Ladd, C. C., Foott, R., Ishihara, K., Schlosser, F. and Poulos, H. G. (1977), "Stress-deformation and strength characteristics", General report, Proceedings, 9th International Conference on Soil Mechanics and Foundation Engineering, Tokyo. Vol.2, pp.421-494.
  7. Mesri, G. (1973), "Coeffieient of secondary compression" ASCE, Journal of Soil Mechanics and Foundation Division, Vol.90, N0.SM5, pp.133-156.
  8. Mesri, G. and Choi, Y. K. (1985). "Settlement analysis of embankments on soft clays", ASCE, Journal of Geotechnical Engineering, pp.441-464.
  9. Mesri, G. and Choi, Y. K. (1985). "The uniqueness of end-of primary(EOP) void ration effective stress relationship", Proceedings, 11th International Confercnce on Soil Mechanics and Foundation Engineering, San Francisco, Vol.2, pp.587-590.
  10. Skempton, A. W. and Bjerrum, L. (1957), "A contribution to the settlement analysis of foundation on clay", Geothechnique, Vol.7, pp.168-178. https://doi.org/10.1680/geot.1957.7.4.168
  11. Terzaghi, K. (1948), Theoretical Soil Mechanics, Jhon Wiley & Sons, New York.