Ecology and Resilient Infrastructure

Korean Society of Ecology and Infrastructure Engineering (응용생태공학회)
권호 표지
DOI QR코드

DOI QR Code

The Analysis of Effect of Biopolymer Treated Soils in Seed Spray Method in the River Embankment

제방 녹화공법에서 바이오폴리머 처리토의 효능 분석

  • Seo, Seunghwan (Department of Infrastructure Safety Research, Korea Institute of Civil Engineering and Building Technology) ;
  • Jin, Seungnam (Eco n Geo) ;
  • Chang, Ilhan (School of Engineering and Information Technology, University of New South Wales) ;
  • Chung, Moonkyung (Korea Institute of Civil Engineering and Building Technology)
  • Received : 2019.12.11
  • Accepted : 2019.12.23
  • Published : 2019.12.31
Download PDF
⟨ Previous Next ⟩

Abstract

Biopolymer based on microbial β-glucan and xanthan gum is effective for vegetation and has a function of enhancing soil strength, which can be used as soil reinforcement and stabilization materials in river embankment. The purpose of this study is to verify the vegetation effect of the surface of levee by biopolymer with seed spraying method. Mixed soils with biopolymer were used to cover the surface of embankments. The strength is higher in biopolymer-treated soil and xanthan gum based biopolymer has advantage for quality control in field scale. In addition, the vegetation of F. arundinacea and L. perenne showed various reactions with types of biopolymers. Biopolymer has a positive effect on the vegetation of them. In contrast, root growth tended to decrease in biopolymer-treated soils. The results indicate that root growth is slow down due to increasing ability to retain water in biopolymer-treated soil. In order to apply biopolymer to river embankment, it is necessary to examine the effects of biopolymers on a wide range of plant species in river embankment.

미생물 유래 베타글루칸과 잔탄검 계열의 바이오폴리머는 식물 성장에 효과적이고 토양의 강도를 증진시키는 기능을 지니고 있어 하천 제방의 토양 보강 및 안정화 재료로서 활용이 가능하다. 본 연구의 목적은 분사 공법을 이용하여 바이오폴리머 신소재를 실규모 제방에 시공하는 경우 바이오폴리머에 의해 하천 제방 표면 토양의 강도 증진 및 식생 효과를 검증하는 것이다. 실규모 하천제방에서 바이오폴리머를 이용하여 제방 표면을 피복하였고, 혼합재료에 대한 강도 측정 결과 바이오폴리머를 처리한 구역에서 강도가 높게 나타났다. 그리고 큰김의털과 호밀풀을 대상으로 식물 생장을 조사하였으며, 두 식물종의 지상부 생장에 긍정적인 효과를 확인하였다. 반면 대상 식물종의 지하부 생장은 바이오폴리머가 처리된 토양에서 감소하는 경향을 보였다. 바이오폴리머를 처리한 토양에서는 토양이 수분을 보유하는 능력이 증가하여 바이오폴리머로 처리로 인해 오히려 지하부 성장을 더디게 하는 것으로 판단된다. 본 연구의 결과에 따라 분사공법을 이용한 바이오폴리머 시공은 토양의 강도 증진 효과와 하천 제방의 녹화에 사용하기 충분한 것으로 판단된다. 그러나 하천 제방에 식재하는 광범위한 식물 종에 대한 바이오폴리머의 효과와 식물 종 별로 적정 바이오폴리머 농도에 대한 연구가 필요할 것이다.

Keywords

References

  1. ASTM D1633-00, Standard Test Method for Compressive Strength of Molded Soil-Cement Cylinders, ASTM International, West Conshohocken, Pa, USA, 2007.
  2. An, J.H., Jeong, H.S. and Kim, E.S. 2018. Effects of the beta-glucan- and Xanthan gum-based biopolymer on the performance of plants inhabiting in the riverbank. Ecology and Resilient Infrastructure. 5(3): 180-188 https://doi.org/10.17820/eri.2018.5.3.180
  3. Chang, Y.J., Lee, S., Yoo, M.A., and Lee, H.G. 2006. Structural and biological characterization of sulfated derivatized oat ${\beta}$-glucan, Journal of Agricultural and Food Chemistry 54: 3815-3818. https://doi.org/10.1021/jf060243w
  4. Chang, I., Prasidhi, A.K., Im, J., Shin, H.D. and Cho, G.C. 2015. Soil treatment using microbial biopolymers for anti-desertification purposes. Geoderma 253-254. Pp. 39-47 https://doi.org/10.1016/j.geoderma.2015.04.006
  5. Chang, I.H., Prasidhi, A.K. and Cho, G.C. 2015. Effects of Xanthan gum biopolymer on soil strengthening. Construction and Building Materials, vol.74. pp. 65-72 https://doi.org/10.1016/j.conbuildmat.2014.10.026
  6. Choi, J.M., Wang, H.J. and Lee, J.S. 2005. Effect of incorporation level of polyacrylic acid sodium salt on changes in physical properties of root media. Korean Journal of Horticultural Science and Technology. 23(4): 481-487. (in Korean).
  7. Evette A., Labonne, S., Rey F., Liebault, F., Jancke O., and Girel, J. 2009. History of bioengineering techniques for erosion control in rivers in Western Europe. Envioronmental management 43: 972-984.
  8. Han, S.W., Kim, H.J., Chae, B.K., and Kim, J.K. 2015. The stockpiling and spreading of topsoil for the ecological restoration of floodplains and the levee slope of a stream. Ecology and Resilient Infrastructure. 2(1), pp. 99-104. (in Korean) https://doi.org/10.17820/eri.2015.2.1.099
  9. Latifi, N., Horpibulsuk, S., Meehan, C.L., Majid, M.A. and Rashid, A.A. 2016. Xanthan gum biopolymer: an eco-friendly additive for stabilization of tropical organic peat. Environ Earth Sci. 75(9). pp. 1-10 https://doi.org/10.1007/s12665-015-4873-x
  10. Ko, D. and Kang, J. 2018. Experimental studies on the stability assessment of a levee using reinforced soil based on a biopolymer. Water 10: 1059. https://doi.org/10.3390/w10081059
  11. Yang, J., Yoon, Y.H. and Ju, J.H. 2014. Evaluation of hydrophilic polymer on the growth of plants in the extensive green roofs. Korean Journal of Environment and Ecology. 28(3): 357-364. https://doi.org/10.13047/KJEE.2014.28.3.357
  12. Zohuriaan, M.J. and Shokrolahi, F. 2004. Thermal studies on natural and modified gum. Polym Test 23(5): 575-579. https://doi.org/10.1016/j.polymertesting.2003.11.001

Cited by

  1. 3차원 포인트 클라우드 모델링 기법을 활용한 바이오폴리머 기반 제방 보강공법의 성능 평가 vol.54, pp.3, 2019, https://doi.org/10.3741/jkwra.2021.54.3.181