Browse > Article
http://dx.doi.org/10.12814/jkgss.2020.19.1.103

A Study on the Field Application of Ground Stabilizer using Circulating Resource for Improvement of Soft Ground in Saemangeum Area  

Seo, Se-Gwan (Zian Company Ltd.)
Kim, You-Seong (Department of Civil Engineering, Jeonbuk National University)
Cho, Dae-sung (Department of Civil Engineering, Jeonbuk National University)
Publication Information
Journal of the Korean Geosynthetics Society / v.19, no.1, 2020 , pp. 103-110 More about this Journal
Abstract
The DMM (Deep mixing method) is a construction method in which an improved pile is installed in the soft ground by excavation ground using an auger and then mixing ground stabilizer with soil. Improved pile installed in the soft ground by the DMM may have different compressive strength depending on the properties and characteristics of the soil. In the previous study, laboratory tests were performed on the ground stabilizer for the DMM developed by using the ash of the circulating fluidized bed boiler as a stimulator for alkali activation of the blast furnace slag. And the test results were analyzed to derive the correlation between the unit weight of binder (γB) and the uniaxial compressive strength (qu). In this study, comparative reviews were conducted on the correlations derived from the same laboratory tests on soil material collected from the Saemangeum area and the stability of the site was evaluated by analyzing the test results performed at the site. As a result, the clay collected from the Saemangeum area satisfies the correlation between the unit weight of binder (γB) and the uniaxial compressive strength (qu) derived from the previous study. And the result of the test at the field showed a higher uniaxial compressive strength than the standard strength at the field, indicating excellent stability.
Keywords
Soil stabilizer; Deep Mixing Method; Laboratory test; Field test; Uniaxial compressive strength; Unit content of binder;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
연도 인용수 순위
1 Seo. S. G., Kim, Y. S., Lim, Y. H. and Cho, D. S. (2018), "Performance Evaluation of Pile-Filling Material using High Calcium Ash by Field Loading Test", Journal of the Korean Geotechnical Society, Vol.34, No.6, pp.17-24.   DOI
2 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", Journal of Korean Geosynthetics Society, Vol.18, No.2, pp.37-44.   DOI
3 Woo, Y. Y. (2015), "Characteristics and Evaluation of Circulating Fluidized Bed Boiler Ash", Doctor Thesis, Kunsan National University.
4 KS F 2328(2017), "Testing Method for Compressive Strength of Molded Soil-Cement Cylinders", Korea Standards Association.
5 Coastal Development Institute of Technology (1999), "Design and Construction Manual. (in Japanese)".
6 Jeong, G. H., Shin, M. S., Han, G. T., Lee, J. H. and Kim, J. H. (2008), "Suggestion for Determination of DCM Design Parameter Based on Statistical Method", KGS Spring National Conference 2008, Vol.2008, pp.462-471.
7 Kitazume, M. and Terashi, M. (2013), "The Deep Mixing Method", CRC Press, ISBN:978-0-58963-2.
8 KS L 5405 (2016), "Fly Ash", Korea Standards Association.
9 Ministry of ocean and fisheries (2017), "Harbour and Fishery Design Criteria", KDS 64 00 00:2017.
10 OECD (2019), "Fish, Acute Toxicity Testing", Test Guideline No. 203.
11 Park, C. S. (2017), "Stability Improvement Effect of Quay Wall Foundation Ground using DCM Lift Injection Method", Doctor Thesis, Incheon National University.