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2013 Vol.12, Issue 4 Preview Page
A Study on Securing safety through Behavior Analysis of Earth Retaining Wall

흙막이 가시설의 거동 분석을 통한 안정성 확보 방안에 관한 연구

Kwang-Leyol Kim1
,
You-Seong Kim2
,
Seong-Soo Kim3*
김 광렬1
,
김 유성2
,
김 성수3*
1Doctor Candidate, Department of Civil Engineering, Chonbuk National Univ.
2Professor, Department of Civil Engineering, Chonbuk National Univ.
3Doctor Candidate, Department of Civil Engineering, Chonbuk National Univ.
*교신저자. *Corresponding Author. 
30 December 2013. pp. 11-19
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Abstract

Recently despite the development of analysis program and construction technologies, collapse at the many earth retaining wall construction site of the structure due to the economic and human damage has occurred. The results of geothechnical investigation studies field, it was found to differ from the results of the original design. There may be errors parameters calculated from the results of ground investigation in such a case. And it can be estimated that it is irrational to behavior analysis of the earth retaining wall were analyzed by utilizing the parameters. And in this study, parameters that affect the earth retaining wall the correlations were analyzed using elasto-plastic method. Analysis method was changed various parameters (cohesion, subgrade reaction coefficient, load condition) applied to the elasto-plastic method. And due to a change in the behavior of earth retaining wall materials were analyzed. As a result, the cohesion greatly affects the behavior of earth retaining wall materials in various parameters. For this reason, the results of the geothechnical investigation, confirmation of the actual ground is very important in the design of the earth retaining wall. And, calculating accurate and reasonable of the cohesion of the various parameters is very important.

Keywords
Earth retaining wall
Elasto-plastic method
Geothechnical investigation
Cohesion

최근 해석프로그램과 시공기술의 발달에도 불구하고 많은 흙막이 가시설 공사현장에서 구조물의 붕괴로 인한 경제적·인적 피해가 발생하고 있다. 이번 연구 현장의 지반조사 결과는 원래 설계시 조사결과와 다른 것으로 나타났다. 이러한 경우에 지반조사 결과를 통해 산정된 매개변수는 오류가 있을 가능성이 있고, 그 지반정수를 활용하여 분석한 가시설 구조물의 거동분석도 비합리적임을 추정할 수 있다. 이번 연구에서는 가시설 구조물에 영향을 주는 매개변수에 대한 상관성을 탄소성해석법을 이용하여 분석하였다. 분석방법으로 탄소성해석법에 적용되는 주요 매개변수(점착력, 지반반력계수, 하중조건)를 변화시키고 그 변화로 인한 흙막이 가시설 재료(부재)의 거동을 분석하였다. 그 결과 점착력이 재료의 거동에 가장 큰 영향을 주는 것으로 나타났다. 따라서 흙막이 가시설의 설계에서 지반조사 결과와 실제 지반의 확인과 여러 매개 변수 중에서 점착력의 정확하고 합리적인 산정이 매우 중요함을 알 수 있었다.

References
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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 :11-19
  • Received Date : 2013-08-29
  • Revised Date : 2013-11-18
  • Accepted Date : 2013-11-19
  • DOI :https://doi.org/10.12814/jkgss.2013.12.4.011
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