한국지반환경공학회 논문집 (Journal of the Korean GEO-environmental Society)

한국지반환경공학회 (Korean Geo-Environmental Society)
권호 표지
DOI QR코드

DOI QR Code

유기질 함량에 따른 고화토의 역학적 특성과 식생발아 특성과의 관계 분석

A Study of Relationship Between Engineering and Germination Characteristics of Stabilized Soils with Various Organic Contents

  • Yun, Daeho (Department of Ocean Engineering, Pukyong National University) ;
  • Kim, Yuntae (Department of Ocean Engineering, Pukyong National University)
  • 투고 : 2014.08.18
  • 심사 : 2014.10.30
  • 발행 : 2014.12.01
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

준설토 내 유기물질은 지반침하, 균열, 지지력 저하 및 내부마찰각 감소 등 지반공학적으로 많은 문제를 가지고 있는 반면 농업의 관점에서는 지반 내 유기물질이 함유되어 있을수록 양질의 토사로서 식생의 성장에 크게 기여한다. 따라서 본 논문에서는 유기질을 함유한 준설토를 재활용하여 고화토를 제작하였으며, 고화토의 유기질 함량(0 %, 10 %, 20 %, 30 %)에 따른 역학적 특성과 식생발아 특성과의 관계를 분석하였다. 유동성 시험, 일축압축 시험 및 압밀 시험 등 다양한 실내 시험을 통해 고화토의 역학적 특성을 알아보았으며, pH, 발아율 및 초장길이 측정을 통해 식생발아 특성을 알아보았다. 실험 결과 유기물 함량이 증가할수록 일축 압축강도는 감소하고 압축지수 및 팽창지수는 증가하는 것으로 나타났다. 반면 식생의 발아율 및 초장길이는 유기물 함량이 증가함에 따라 점차 증가하는 경향을 보였다.

Organic matter in dredged soil has a lot of engineering problem in ground including a large settlement, crack propagation, low bearing capacity and low friction angle. From an agricultural point of view, however, organic matter contributes greatly soil quality and plant health. This paper investigated the relationship between engineering and germination characteristics of stabilized mixture consisting of different ratios of organic content (0 %, 10 %, 20 %, 30 %) for recycling dredged soil including organic matter. Several series of laboratory tests such as flow test, unconfined compressive test and consolidation test were performed to find out engineering characteristics. pH, percent of germination and growth of plants were also measured to investigate the germination characteristics. The experimental results indicated that, as organic content increased, unconfined compressive stress decreased and compression and swelling indices increased. However, percent of germination and plant growth increases as organic content increases.

키워드

참고문헌

  1. Arman, A. (1970), Engineering classification of organic soils, Highway research record, No. 310, pp. 75-89.
  2. Choi, B. S. (2011), Development of planting model and growth characteristics depending on the fundamental environment of hydrophites for aquatic ecosystem restoration, Sangmyung University Doctor's theory, pp. 1-113 (in Korean).
  3. Choi, J. S., Yang, G. M., Ahn, S. H. and Cho, Y. S. (2008), Effect of cornstarch-based absorbent polymer on the growth of cool season turfgrasses in sand-based mixture, Journal of Weed & Turfgrass Science, Vol. 22, No. 1, pp. 75-83 (in Korean).
  4. Mersi, G., Stark, T. D., Ajiloulni, M. A. and Chen, C. S. (1997), Secondary compression of peat with or without surcharging, Journal of Geotechnical and Geoenvironmental Engineering, American Society of Civil Engineers, Vol. 123, No. 5, pp. 411-421. https://doi.org/10.1061/(ASCE)1090-0241(1997)123:5(411)
  5. Han, S. J., Ahn, D. W., Park, J. M. and Kim, S. S. (2009), Engineering properties of liquefied stabilized soil by contents of humic acid, Journal of Korean Society of Civil Engineers, Vol. 29, No. 5C, pp. 229-237 (in Korean).
  6. Jang, D. H. (2011), An experimental study on the engineering characteristics of organic soil in dong-hae, Kwandong University Master's theory, pp. 1-29 (in Korean).
  7. Jo, J. B., Hyun, J. H. and Hwang, Y. S. (2004), Impact of soil organic matter in the cement-based landfill liner system, Journal of Korea Society of Waste Management, Vol. 21, No. 4, pp. 297-302 (in Korean).
  8. Kim, H. D. (2002), Soil stabilization with lime and rice husk ash, Master's theory, pp. 1-50 (in Korean).
  9. Kim, K. N. and Nam, S. Y. (2003), Comparison of early germination vigor, germination speed and germination rate of varieties in Poa pratensis L., Lolium perenne L., and festuca arundinacea schreb. Grown under different growing gonditions, Korean Journal of Turfgrass Science, Vol. 17, No. 1, pp. 1-12 (in Korean).
  10. Kim, M. S., Chung, B. J., Park, G. C., Park, T. D., Kim, S. C. and Shim, J. H. (1998), Effect of organic fertilizers on growth and yield of achyranthes japonical n., Journal of Medicinal Crop Science, Vol. 6, No. 2, pp. 131-136 (in Korean).
  11. Kim, S. Y. and Kim, T. H. (1996), Effect of organic fertilizer from diatom on the growth of pepper, Basic Science of Andong National University, Vol. 7, pp. 71-84 (in Korean).
  12. Kim, Y. T. and Kang, H. S. (2010), Engineering properties of flowable composite soil with waste tire and bottom ash, Journal of Ocean Engineering and Technology, Vol. 24, No. 3, pp. 52-58 (in Korean).
  13. Kim, Y. T. and Kang, H. S. (2011), Shear and CBR characteristics of dredge soil-bottom ash-waste tire powder-mixed lightweight soil, Journal of Ocean Engineering and Technology, Vol. 25, No. 3, pp. 34-39 (in Korean). https://doi.org/10.5574/KSOE.2011.25.3.034
  14. Kuo, W. T., Wang, Y. H., Shu, C. Y. and Su, D. S. (2013), Engineering properties of controlled low-strength materials containing waste oyster shells, Journal of Construction and Building Materials, Vol. 46, pp. 128-133. https://doi.org/10.1016/j.conbuildmat.2013.04.020
  15. Lee, J. A., Kim, W. S. and Choi, H. S. (2009), Effects of compost application on soil properties and leaf and bud characteristics of pear trees in orchard farms, Journal of Organic Agriculture, Vol. 17, No. 4, pp. 567-575 (in Korean).
  16. Lee, J. W. (2003), Study on the pH reducing plan about eco-concrete, Yeungnam University Master's theory, pp. 1-30 (in Korean).
  17. Oh, T. S. and Kim, C. H. (2013), Effect of using organic fertilizer on the growth of rice and soil, Journal of Crop Science, Vol. 58, No. 1, pp. 36-42 (in Korean). https://doi.org/10.7740/kjcs.2013.58.1.036
  18. Park, H. G. and Kweun, D. Y. (1998), A study on the consolidation characteristics of organic soil in yang-yang region, Journal of the Institute of Industrial Technology and Development Kwangdong, No. 14, pp. 14-27 (in Korean).
  19. Park, H. G. and Koo, J. M. (2001), A study on the engineering characteristics of yang-dong organic soils, Journal of Geo- Enironmental society, Vol. 2, No. 1, pp. 23-30 (in Korean).
  20. Park, H. G. and Koo, J. M. (2002), A study on the utilization of organic mixed soil as earthwork meterials, Journal of Geo-Enironmental society, Vol. 3, No. 4, pp. 29-35 (in Korean).
  21. Rosen, C. J. and Allan, D. L. (2007), Exploring the benefits of organic nutrient sources for crop production and soil quality. Hort Tech. 17: pp. 422-430.
  22. Sireesh, S., Anand, J. P. and Srujan, R. C. (2013), Swell-shrink and strength behaviors of lime and cement stabilized expansive organic clays, Journal of Applied Clay Science, Elsevier, Vol. 85, pp. 39-45. https://doi.org/10.1016/j.clay.2013.09.008
  23. Stevenson, F. J. (1982), Organic forms of soil nitrogen, in F.J. Stevenson (ed.) Nitrogen in agricultural soils. Agron. Monogr. 22 ASA and SSSA, Madison, WI. pp. 67-114.