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http://dx.doi.org/10.7782/JKSR.2013.16.6.473

Improvement Method of Sand Ground Using an Environmental Friendly Bio-grouting Material  

Kim, Dae-Hyeon (Department of Civil Engineering, Chosun University)
Sagong, Myung (New Transportation Research Center, Korea Railroad Research Institute)
Park, Kyung-Ho (Department of Civil Engineering, Chosun University)
Publication Information
Journal of the Korean Society for Railway / v.16, no.6, 2013 , pp. 473-481 More about this Journal
Abstract
The purpose of this research is to evaluate the improvements in the strength and injection range of loose ground after injecting $CaCO_3$(created by microorganism reaction). For this purpose, three cases of single-layer (Sand, SP, SW) specimens were made in a 150mm D ${\times}$ 200mm H space and two cases of multi-layer specimens (SW/SP, SP/SW) were made in a 150mm D ${\times}$ 300mm H space. The specimens were made with a relative density of 30% of soft ground and an injection was given over a time of one day. The uniaxial compression strength was measured with a cone penetrometer and the injection range was observed by checking the bulb formation around the injection nozzle. Also, the compositions of the specimens were assessed through XRD analyses. Based on the test results, a compressive strength of 500kPa and 15cm thick cementation were noted due to the cementation of the soil. This implies that there are significant effects of the pore condition and size on bio-grouting technology.
Keywords
Bio-grouting; Sand Ground; Multi-layer Soil; Single-layer Soil; Porosity;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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1 KOSCA (2009) 2009 Specialty Contractors Statistical Yearbook, Korea Specialty Contractors Association, pp.1-3.
2 Korea Cement Association (2005) 2010 Cement Statistical Yearbook, Korea Cement Association, pp. 5-7.
3 D.H. Kim, H.C. Kim, K.H. Park (2010) Cementation of Soft Ground using Bacteria, CERTIFICATE OF PATENT, 10-1030761, pp. 1-27.
4 D.H. Kim, K.H. Park, S.W. Kim, S.H. Mun (2012) A Novel Approach to Induce Cementation of Loose Soils, Advanced Science Letters, 9, pp. 545-550.   DOI
5 D.H. Kim, K.H. Park (2013) Injection Effect of Bio-Grout soft Ground, Advanced Science Letters, 19, pp.468-472.   DOI
6 H.C. Kim (2011) Discovering Cementation Characteristics of Soil using Bacteria, Master Thesis, Chosun University.
7 K.H. Park (2011) Strength Improvement of Soft Ground with Microbial Reaction, Master Thesis, Chosun University.
8 K.H. Park, D.H. Kim (2012) Verification of Calcium Carbonate by Cementation of Silt and Sand using Bacteria, Journal of Korean Geotechnical Society, 28(6), pp. 53-61.   과학기술학회마을   DOI   ScienceOn
9 K.H. Park, D.H. Kim (2013) Strength and Effectiveness of Grouting of Sand Treated with Bacteria, Journal of Korean Geotechnical Society, 2(2), pp. 65-73.   과학기술학회마을   DOI   ScienceOn
10 J.T. Dejong, M.B. Fritzges, K. Nusslein (2008) Microbially Induced Cementation to Control Sand Response to Undrained Shear, Journal of Geotechnical and Geoenvironmental Engineering, 132(11), pp. 1381-1392.
11 V.S. Whiffin, L.A. Paassen, M..P. Harkes (2007) Microbial Carbonate Precipitation as a Soil Improvement Technique, Geomicrobiology Journal, 24, pp. 1-7.   DOI   ScienceOn
12 L.A. Paassen, M.P. Harkes, G.A. Zwieten, W.H. Zon, W.R.L. Star, M.C.M. Loosdrecht (2009) Scale Up of Biogrout: A Biological Ground Reinforcement Method, Proceedings of the 17th International Conference on Soil Mechanics and Geotechnical Engineering, Alexandria, Egypt, pp. 2328-2333.
13 J.T. Dejong, B.M. Mortensen, B.C. Martinez, D.C. Nelson (2010) Bio-mediated Soil Improvement, Journal of Ecological Engineering, 36, pp. 197-210.   DOI   ScienceOn