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A Fundamental Study on Reinforced Soil Slope with Improved Soil Facing

개량토 벽면공을 활용한 보강성토사면에 관한 기초적 연구

In-Hwang Bhang1
,
Se-Gwan Seo2
,
Kwang-Leyol Kim3
,
You-Seong Kim4*
방 인황1
,
서 세관2
,
김 광렬3
,
김 유성4*
1Doctor Candidate, Department of Civil Engineering, Chonbuk National Univ.
2Doctor Candidate, Department of Civil Engineering, Chonbuk National Univ.
3Doctor Candidate, Department of Civil Engineering, Chonbuk National Univ.
4Professor, Department of Civil Enginieering, Chonbuk National Univ
*교신저자. *Corresponding Author. 
30 December 2013. pp. 35-44
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Abstract

This paper presents the slope wall technique using soil improvement material for reinforced soil slope through laboratory scale model tests, and verifies the experimental results comparing with numerical analysis. In additional, case study in field has performed to investigate the deformation of reinforced soil slope for 6 months. As a result of laboratory scale model test, numerical analysis, and case study, the reinforcement effect of the slope wall technique using soil improvement material is sufficient to be constructed as reinforced soil slope. The technique shows the stable ratio (0.4%) of horizontal to vertical deformation in the surface loading.

Keywords
Soil improvement material
Slope wall technique
Laboratory scale model test
Numerical analysis

본 연구에서는 개량토 벽면공을 활용한 보강성토사면의 거동에 대하여 실내모형시험 및 수치해석을 통해 분석하였다. 또한 수해발생현장에 이 연구에서의 방법을 이용하여 시험시공으로 보강성토사면을 구축한 후 약 6개월간 전면변위를 측정하여 실제 거동을 분석하였다. 실내모형시험, 수치해석, 현장시험 등을 통해 개량토 벽면공의 강성은 보강성토사면에서 충분한 벽면공의 역할을 수행할 수 있는 것으로 나타났고, 시험시공 후의 전면변위 측정결과 사면높이에 대한 수평변위의 비율은 최대 약 0.4%로 매우 안정적인 것으로 조사되었다.

References
1
1.Bhang, I. H. (2007) “A Study on the technology related to the control and rehabilitation of slope surface erosion”, Master Thesis, Chonbuk National University.
2
2.Christopher, B. R., Gill, S. A., Giroud, J. P., Juran, I., Nitchell, J. K., Schlosser, F. and Dunnicliff, J. (1990) “Reinforced Soil Structures Volume Ⅰ. Design and Construction Guidelines and Reinforced Soil Structures Volume Ⅱ. Summery of Research and System Information”, Federal Highway Admini-stration. FHWA-RD-89-043., Washington, D.C., Vol.1, 283p., Vol.2. 158p.
3
3.Han, J. G., Kim, J. S., Hong, K. K., Cho, S. D., and Cho, G. S. (2006) “Behavior of the tired-reinforced soil walls having the high embanked slope”, The Fall 2006 Geosynthetics Conference, pp.115-120.
4
4.Kim, Y. M. (2008), “The Study of Numerical Analysis on Failure Behavior of Reinforced Soil Wall”, Journal of Korean Geosynthetics Society, Vol.7, No.3 pp.9-16.
5
5.Kim, Y. S., Kim, J. H., Bhang, I. H., and Seo, S. G. (2013) “A Study Rainfall-induced Erosion of Land Surface on Reinforced Slope Using Soil Improvement Material”, Journal of the Korean Geotechnical Society, Vol.29, No.1, pp.49-59.
6
6.Lee, Y. A., Lee, H. J., and Kim, Y. S. (2002) “A Study on the Application of Paper Fly Ash as Stabilization/Hardening Agent”, Korean Geo-Environmental Society, Vol.3, No.2, pp. 23-33.
7
7.Tatsuoka, F. (1993) “Roles of facing rigidity in soil reinforcing.” Theme Lecture, Proc. Int. Symp. on Earth Reinforcement Practice (IS Kyusu `92). pp.831-870.
Information
  • Publisher :Korean Geosythetics Society
  • Publisher(Ko) :한국지반신소재학회
  • Journal Title :Journal of the Korean Geosynthetics Society
  • Journal Title(Ko) :한국지반신소재학회 논문집
  • Volume : 12
  • No :4
  • Pages :35-44
  • Received Date : 2013-09-17
  • Revised Date : 2013-11-29
  • Accepted Date : 2013-12-03
  • DOI :https://doi.org/10.12814/jkgss.2013.12.4.035
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