Geomechanics and Engineering

  • 제26권3호
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  • Pages.301-309
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  • 2021
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  • 2005-307X(pISSN)
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  • 2092-6219(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Preliminary study on microbially modified expansive soil of embankment

  • Jiang, Weichang (Institute of Geotechnical Engineering, Central South University of Forestry and Technology) ;
  • Zhang, Chunshun (Department of Civil Engineering, Monash University) ;
  • Xiao, Hongbin (Institute of Geotechnical Engineering, Central South University of Forestry and Technology) ;
  • Luo, Shenping (Institute of Geotechnical Engineering, Central South University of Forestry and Technology) ;
  • Li, Zixiang (Institute of Geotechnical Engineering, Central South University of Forestry and Technology) ;
  • Li, Xiaobing (Institute of Geotechnical Engineering, Central South University of Forestry and Technology)
  • 투고 : 2020.03.25
  • 심사 : 2021.08.03
  • 발행 : 2021.08.10
⟨ 이전 논문 다음 논문 ⟩

초록

The improvement of expansive soils has crucial academic research significance and engineering application value. The regular practice using chemical improvement methods may be helpful to improve the expansive soil; however, at the cost of inconvenient material acquisition, troublesome mixing methods, expensive construction, and polluting the soil environment. To this end, based on the microbial induced calcium carbonate precipitation (MICP) technology, we carry out a series of soil modification tests on the expansive soil for the roadbed filling in Nanning, Guangxi. Considering the problematic behaviors of the expansive soil and its significant adverse effect on engineering, this paper focuses on the soil improvement; particularly, we aim to study the improved soil's physical properties, limit moisture content and swelling and shrinkage rates under the action of dry and wet cycles. It is found that the swelling index of the improved expansive soil has been decreased significantly, the free expansion rate drops to 14.9%, such that the samples fall into the category of non-expansive soil. The liquid limit and plastic limit of soil samples decreased to 47.2% and 20.4%, respectively, after 6 times of microbial treatment. Moreover, after several high-pressure consolidation tests under dry-wet cycle conditions, the hydrophilic capacity of the improved expansive soil is significantly weakened, and its corresponding water absorption induced swelling rate and drainage-induced shrinkage rate are significantly reduced. The above research results show that it is feasible to use the MICP technology to improve the swelling and shrinkage characteristics of the expansive soil; in particular, after six treatments with the microbial solution, all indices of the expansive soil achieve the best improvement effect.

키워드

과제정보

The work described in this paper was supported by a grant from the National Natural Science Foundation of China (Project No. 50978097).

참고문헌

  1. Abbey, S.J., Eyo, E.U., Okeke, C.A. and Ngambi, S. (2021), "Experimental study on the use of RoadCem blended with byproduct cementitious materials for stabilisation of clay soils", Construct. Build. Mater., 280, 122476. https://doi.org/10.1016/j.conbuildmat.2021.122476.
  2. Abbey, S.J., Eyo, E.U., Oti, J., Amakye, S.Y. and Ngambi, S. (2020), "Mechanical properties and microstructure of fibre-reinforced clay blended with by-product Ccmentitious materials", Geosciences, 10(6), 241. https://doi.org/10.3390/geosciences10060241.
  3. Abbey, S.J., Olubanwo, A.O., Ngambi, S., Eyo, E.U. and Adeleke, B. (2019), "Effect of organic matter on swell and undrained shear strength of treated soils", J. Civ. Construct. Environ. Eng., 4, 48-58. https://doi.org/10.11648/j.jccee.20190402.12.
  4. Abdullah, W.S. and Al-Abadi, A.M. (2010), "Cationic-electrokinetic improvement of an expansive soil", Appl. Clay Sci., 47, 343-350. https://doi.org/10.1016/j.clay.2009.11.046.
  5. Achal, V., Pan, X. and Zhang, D. (2011), "Remediation of copper-contaminated soil by kocuria flava CR1, based on microbially induced calcite precipitation", Ecol. Eng., 37(10), 1601-1605. https://doi.org/10.1016/j.ecoleng.2011.06.008.
  6. Akcin, H. (2021), "A gis-based building risk assessment for the subsidence due to undercity coal mining activities in zonguldak, turkey", Arab. J. Geosci., 14(5), 1-13. https://doi.org/10.1007/s12517-021-06702-6.
  7. Botusharova, S., Gardner, D. and Harbottle, M. (2020), "Augmenting microbially induced carbonate precipitation of soil with the capability to self-heal", J. Geotech. Geoenviron. Eng., 146(4), 04020010. https://doi.org/10.1061/(ASCE)GT.1943-5606.0002214.
  8. Cheng, L., Cord-Ruwisch, R. and Shahin, M.A. (2012), "Cementation of sand soil by microbially induced calcite precipitation at various degrees of saturation", Can. Geotech. J., 50(1), 81-90. https://doi.org/10.1139/cgj-2012-0023.
  9. Dawoud, O., Chen, C.Y. and Soga, K., (2014), "Microbial induced calcite precipitation for geotechnical and environmental applications", Proceedings of New Frontiers in Geotechnical Engineering, Shanghai, China, May.
  10. Dejong, J.T., Fritzges, M.B. and Nusslein, K. (2006), "Microbial induced cementation to control sand response to undrain shear", J. Geotech. Geoenviron. Eng., 132(11), 1381-1392. https://doi.org/10.1061/(ASCE)1090-0241(2006)132:11(1381).
  11. Do, J., Montoya, B.M. and Gabr, M.A. (2019), "Debonding of microbially induced carbonate precipitation-stabilized sand by shearing and erosion", Geomech. Eng., 17(5), 429-438. https://doi.org/10.12989/gae.2019.17.5.429.
  12. Feng, K. and Montoya, B.M. (2017), "Quantifying level of microbial-induced cementation for cyclically loaded sand", J. Geotech. Geoenviron. Eng., 143(6), 1-4. https://doi.org/10.1061/(ASCE)GT.1943-5606.0001682.
  13. Im, J., Tran, A.T.P., Chang, I. and Cho, G.C. (2017), "Dynamic properties of gel-type biopolymer-treated sands evaluated by resonant column (RC) tests", Geomech. Eng., 12(5), 815-830. https://doi.org/10.12989/gae.2017.12.5.815.
  14. Imran, M.A., Nakashima, K., Evelpidou, N. and Satoru K. (2019), "Factors affecting the urease activity of native ureolytic bacteria isolated from coastal areas", Geomech. Eng., 17(5), 421-427. https://doi.org/10.12989/gae.2019.17.5.421.
  15. Kwon, Y.M., Chang, I., Lee, M. and Cho, G.C. (2019), "Geotechnical engineering behavior of biopolymer-treated soft marine soil", Geomech. Eng., 17(5), 453-464. https://doi.org/10.12989/gae.2019.17.5.453.
  16. Li, L., Wen, K., Li, C. and Amini, F. (2017), "FIB/SEM imaging of microbial induced calcite precipitation in sandy soil", Microsc. Microanal., 23(S1), 310-311. https://doi.org/10.1017/S1431927617002239.
  17. Li, X., Zhang, C., Xiao, H., Jiang, W., Qian, J. and Li, Z. (2021), "Reducing compressibility of the expansive soil by microbiological-induced calcium carbonate precipitation", Adv. Civ. Eng. https://doi.org/10.1155/2021/8818771.
  18. Liang, J.M., Guo, Z.Y., Deng, l.J. and Liu, Y. (2015), "Mature fine tailings consolidation through microbial induced calcium carbonate precipitation", Can. J. Civ. Eng., 42, 975-978. https://doi.org/10.1139/cjce-2015-0069.
  19. Liu, B., Zhu, C., Tang, C.S., Xie, Y.H., Yin, L.Y., Cheng, Q. and Shi, B. (2020), "Bio-remediation of desiccation cracking in clayey soils through microbially induced calcite precipitation (MICP)", Eng. Geol., 264, 105389. https://doi.org/10.1016/j.enggeo.2019.105389.
  20. Liu, S., Wen, K., Armwood, C., Bu, C., Li, C., Amini, F. and Li, L. (2019), "Enhancement of MICP-treated sandy soils against environmental deterioration", J. Mater. Civ. Eng., 31(12), 04019294. https://doi.org/10.1061/(ASCE)MT.1943-5533.0002959.
  21. Liu, S.H., Du, K., Wen, K.J., Huang, W., Amini, F. and Li, L. (2019), "Sandy soil improvement through microbially induced calcite precipitation (MICP) by immersion", J. Visual. Exper., (151), e60059. https://doi.org/10.3791/60059.
  22. Lu, Y. and Liu, S.H. (2017), "Cracking in an expansive soil under freeze-thaw cycles", Sci. Cold Arid Reg., 9(4), 392-397. https://doi.org/10.3724/SP.J.1226.2017.00392.
  23. Nelson, J.D. and Miller, D.J. (1992) Expansive Soils, Wiley, New York, U.S.A.
  24. Osinubi, K.J., Eberemu, A.O., Ijimdiya, Ijimdiya, T.S., Yakubu, S.E., Gadzama, E.W., Sani, J.E. and Yohanna, P. (2020), "Review of the use of microorganisms in geotechnical engineering applications", Appl. Sci., 2(2), 1-19. https://doi.org/10.1007/s42452-020-1974-2.
  25. Peng, Y., Wen, Z.L., Liu, Z.M., Sun, Y.C., Feng, Q.P. and He, J. (2019), "Experimental study on strengthening organic clay with calcium carbonate deposition induced by microorganisms", Chin. J. Geotech. Eng., 41(04), 733-740 (in Chinese). https://doi.org/10.11779/CJGE201904017.
  26. Puppala, A.J., Manosuthikij, T. and Chittoori, B.C.S. (2013), "Swell and shrinkage characterisations of unsaturated expansive clays from Texas", Eng. Geol., 164, 187-194. https://doi.org/10.1016/j.enggeo.2013.07.001.
  27. Qureshi, M., Chang, I. and Al-Sadarani, K. (2017), "Strength and durability characteristics of biopolymer-treated desert sand", Geomech. Eng., 12(5), 785-801. https://doi.org/10.12989/gae.2017.12.5.785.
  28. Rao, A. and Rao, M. (2010), "Behavior of expansive soils under stabilised fly ash cushions during cyclic wetting and drying", Int. J. Geotech. Eng., 4(1), 111-118. http://doi.org/10.3328/IJGE.2010.04.01.111-118.
  29. Salifu, E., Maclachlan, E., Iyer, K.R., Knapp, C.W. and Tarantino, A. (2015), "Application of microbially induced calcite precipitation in erosion mitigation and stabilisation of sandy soil foreshore slopes: A preliminary investigation", Eng. Geol., 201(4), 96-105. https://doi.org/10.1016/j.enggeo.2015.12.027.
  30. Saride, S., Puppala, A.J. and Chikyala, S.R. (2013), "Swell-shrink and strength behaviors of lime and cement stabilised expansive organic clays", Appl. Clay Sci., 85, 39-45. https://doi.org/10.1016/j.clay.2013.09.008.
  31. Shang, Y.D. and Geng, B.Y. (2010), "Experimental study on properties of HTAB modified expansive soil", J. Civ. Eng., 43(9), 138-143 (in Chinese). https://doi.org/10.15951/j.tmgcxb.2010.09.018.
  32. Shi, B.X., Chen, S.S., Han, H.Q. and Zheng C.F. (2014), "Expansive soil crack depth under cumulative damage", Sci. World J., 2014(12), 498-437. https://doi.org/10.1155/2014/498437.