Browse > Article
http://dx.doi.org/10.12814/jkgss.2021.20.1.035

Evaluation of Field Applicability of Slope of Improved Soil for Ground Stabilizer  

Lee, Kang-Il (Dept. of Civil Engineering, Daejin University)
Park, Seong-Bak (Dept. of Civil Engineering, Daejin University)
Choi, Min-Ju (Dept. of Civil Engineering, Daejin University)
Publication Information
Journal of the Korean Geosynthetics Society / v.20, no.1, 2021 , pp. 35-44 More about this Journal
Abstract
This research studies the stabilization method for improved soil sloped through the on-site application of Paper Flyash ground stabilizers. The target strength required for improved soil is 500 kPa, and the compressive strength for the slope surface needs to be less than 1,000 kPa after the improvement in order to plant vegetation. To meet this condition, we mixed soil from the site and the ground stabilization material, which is the main material for surface improvement material, performed mixing design and conducted various tests including strength test, permeability test and plantation test. After analyzing the results of the compression test on improved soil slope, we proposed soil constants for the improved soil. In order to evaluate the applicability of the improved soil on the slope, the site construction was carried out on the collapsed slope and the reinforcement evaluation of the surface of the improvement soil was conducted. The stability was not secured before the reinforcement, but the test shows after the reinforcement with improved soil, the safety rate is secured up to 48 hours during the raining period. In addition, the compressive strength of the improved soil at the site was secured at more than 200 kPa adhesion as planned, and the soil hardness test result was also found to be within the specified value of 18-23 mm, which increased the resistance to rainfall and ability to grow plant on the surface for improved soil.
Keywords
Soil hardness; Germination test; Soil stabilizer; Improved soil; Surface improvement;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 Bhang, I. H. (2007), "A study on the technology related to the control and rehabilitation of slope surface erosion", Master Thesis, Graduate School of Industrial Technology of Jeonbuk National University.
2 Bhang, I. H. (2016), "A Study on the Behavior Characteristic of Composite Reinforced Earth with Improved Soil Surface and Geogrid-reinforced Backfill", Ph.D. Thesis, Graduate School of Jeonbuk National University.
3 Horpibulsuk, S., Miura, N. and Bergado, D. T. (2004), "Undrained Shear Behavior of Cement Admixed Clay at High Water Content", Journal of Geotechnical and Geo-environmental Engineering, Vol.130, No.10, pp.1096-1105.   DOI
4 Jeong, D. Y., Lee, B. S. and Lee, K. J. (2001), "A Study on Reaction Characteristics of Stabilized Red Yellow Soil with Flyash", Journal of the Korean geotechnical society, Vol.17, No.2, pp.59-72.
5 Kim, W. H. (2018), "A Study on the Effect of Slope Stabilization Method using Soil Stabilizer and Soil-Nailing", Master's Thesis, The Graduate School of Daejin University.
6 Korea Expressway Corporation (2009), "Road Design Guidelines, Vol.2 Earthwork and Drainage" No. 5, pp.156-159.
7 Ministry of Land, Infrastructure and Transport (2009), "Design and Construction Guidelines for Road Slope Greening Work".
8 National Institute of Environmental Research (2017), "Waste process test standard".
9 Seo, S. G., Lee, K. S., Kim, Y. S. and Cho, D. S. (2019), "A Study on the Estimation of Optimal Unit Content of Binder for the Soil Stabilizer Using the Recycled Resource in DMM", Korean Geosynthetics Society, Vol.18, No.2, pp.37-44.
10 Shim, J. W. and Seo, C. H. (1998), "A Study on the Strength Property of Cement Matrix with Fly-ash", The Architectural Institute of Korea, Vol.18, No.2, pp.587-592.
11 Kim, J. Y., Jang, E. R., Chung, C. K. and Jang, S. H. (2011), "The Optimum Mixture Condition for Stabilization of Songdo Silty Clay, Journal of the Korean Geotechnical Society", Vol.27, No.5, pp.5-15.   DOI
12 Ko, H. W., Seo, S. G., An, Y. J., Kim, Y. S. and Cho, D. S. (1996), "Applicability Evaluation of Eco-Friendly Binder Material using Desulfurized Dust in Deep Cement Mixing Method", Korean Geosynthetics Society, Vol.15, No.2, pp.1-12.
13 Korean Agency for Technology and Standards (2016), "Standard Test Method for Soil Compaction using a Rammer", KS F 2312.
14 Baker, C. N. (1954), "Strength of Soil-Cement as a Function of Degree of Mixing", Highway Research Board Bulletin, No.98, pp.33-52.
15 Han, K. H., Cho, H. R. Jeon, S. H. and Zhang, Y. S. (2011), "A Study of Relation Between Yamanaka Hardness and Penetrometer Cone Index", Vol.44, No.3, pp.344-346.   DOI
16 Kim, Y. S., Kim, J. H., Seo, S. G. and Bhang, I. H. (2015), "Comparison of Critical Tractive Forces for Application of Soil Improvement Material to Bank Revetment Work", Journal of the Korean Geotechnical Society, Vol.31, No.2, pp.65-73.   DOI
17 Park, M. J. (2019), "Stability Evaluation of Surface Layer of Improved Soil Slope Using Fly Ash", Master's Thesis, The Graduate School of Daejin University.
18 Yeo, D. J. (2019), "A Study on the Ground Improvement Material using Fine Powder of Coal Bottom Ash", Master Thesis, Graduate School of Jeonbuk National University.
19 Kim, J. S. (2008), "The Analysis on the Vegetation Construction Cases of Road Slope in West Gyeongnam Regions", Master's Thesis, Industrial Graduate School of Kyungnam National University.