• Title/Summary/Keyword: 흙막이 구조물

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Behavior Analysis Using FEM for Earth Retaining Wall of Soft Rock Fracture Zone (FEM을 이용한 연암 파쇄대 지반의 흙막이 벽체 거동 분석)

  • Jang, Gi-Soo;Park, Min-Chul;Shin, Hyo-Hee;Lee, Song
    • Journal of the Korea institute for structural maintenance and inspection
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    • v.17 no.4
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    • pp.30-37
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    • 2013
  • A soft rock fracture zone is an important element for rock slope or earth retaining, however stability studies of earth retaining wall have been lack. Therefore, this study is analyzed for a behavior of earth retaining wall with condition of fracture zone or no fracture zone and then a numerical analysis (Finite Element Method) was performed considering interaction with field monitoring data between ground and structures. As a result, applied horizontal displacement on retaining wall is correspond between result of numerical analysis and field monitoring data and displacement point stress distribution with fracture zone condition analyzed to be stable side but no fracture zone condition is expressed to be unstable side. The results of this study is purpose for applying safety construction as a top priority at field when designing for future.

Numerical Evaluation of Dynamic Behavior of Retaining Structure in a Deep Excavation (수치해석을 통한 대심도 흙막이 시설물의 동적 거동 평가)

  • Yang, Eui-Kyu;Yu, Sang-Hwa;Kim, Jong-Kwan;Kim, Dong-Chan;Kim, Seok-Jung;Han, Jin-Tae
    • Journal of the Korean Geotechnical Society
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    • v.37 no.12
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    • pp.89-105
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    • 2021
  • In this paper, feasibility study was carried out to evaluate necessity of seismic design of earth retaining structures in a deep excavation. Dynamic behavior of retaining system was analyzed using FLAC, a finite difference analysis program. It was shown that maximum bending moments of retaining walls and axial forces of supports were increased up to 98% and 87% during earthquake, respectively, compared to final excavation step, which indicates that dynamic earth pressure has a large effect on a retaining system. The stability of retaining system designed according to current design specifications was evaluated using structural forces obtained by numerical analysis, and effect of earthquake loading on structural design was analyzed.