• Title/Summary/Keyword: 재-현

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Numerical Investigation on the Behavior of Geosynthetic Reinforced Modular Block Wells in a Tiered Arrangement (계단식 보강토 옹벽의 거동에 관한 수치 해석적 연구)

  • Yoo Chung-Sik;Jung Hye-Young;Song Ah-Ran
    • Journal of the Korean Geotechnical Society
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    • v.21 no.10
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    • pp.49-60
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    • 2005

  • This paper presents the results of an investigation on the effects of design variables on the behavior of geosynthetic-reinforced modular block walls in a tiered arrangement using the finite-element method of numerical analysis. A parametric study was performed by varying the offset distance between the tiers and reinforcement length of the lower and upper tier using verified finite-element model. The finite-element analysis provided relevant information on the mechanical behavior of the tier wall and interaction mechanism between the upper and lower tier, which was otherwise difficult to obtain from the limit-equilibrium analysis based current design approaches. Practical implications of the findings obtained from this study in the current design approaches are discussed in great detail.

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POLICY & ISSUES 환경정책 - 나고야 의정서 의미와 향후 과제

  • Jang, Seong-Hyeon
    • Bulletin of Korea Environmental Preservation Association
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    • s.400
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    • pp.5-7
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    • 2012

  • 미국의 생물학자 G.J.Hardin은 1968년 12월 13일자 "사이언스"에 기고한 논문 "공유지의 비극(The Tragedy of the Commons)"을 통해 공공재(公共財)가 가지는 태생적 비극을 간파한 바 있다. 합리적인 개인은 공공재를 사용함에 있어 비용보다는 이익이 크기 때문에 공공재가 소멸될 때까지 사용할 것이고, 모든 사람이 그렇게 행동한다면 결과적으로는 개개인을 포함한 공동체 전부의 피해로 귀결될 수 밖에 없다는 것이다.

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