3차원 수치해석을 통한 복합하중이 작용하는 농업용저수지의 거동 분석
Analysis of Behavior of Agricultural Reservoir with Combined Load by 3-D Numerical Analysis
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초록
The object of this paper was to analyze combined load acting on agricultural reservoir. This study was carried out to 3-D numerical modeling for displacement characteristic and seismic acceleration characteristic. The results of study were analyzed and summarized as follow. It was found that the displacement caused by combined load acting on railway and agricultural reservoir did not reflect the effect of load and the seismic wave consistently. The ground accelerations that occur in railway and dam were amplified because 3-D numerical analysis program interprets ground as an elastic body. Actual ground shows characteristics of elasticity and plasticity, so measured valueswill show different tendency. As a result of analyzing displacement characteristics, it is considered to be related to stiffness. The Ofunato seismic wave, the displacement (77.1 mm) of the body satisfied the allowable displacement (220 mm), but The Hachinohe seismic wave (282.8 mm) did not. It is considered that displacement caused by combined load is affected not only by acceleration but also by characteristics of materials.
Abstract
The object of this paper was to analyze combined load acting on agricultural reservoir. This study was carried out to 3-D numerical modeling for displacement characteristic and seismic acceleration characteristic. The results of study were analyzed and summarized as follow. It was found that the displacement caused by combined load acting on railway and agricultural reservoir did not reflect the effect of load and the seismic wave consistently. The ground accelerations that occur in railway and dam were amplified because 3-D numerical analysis program interprets ground as an elastic body. Actual ground shows characteristics of elasticity and plasticity, so measured valueswill show different tendency. As a result of analyzing displacement characteristics, it is considered to be related to stiffness. The Ofunato seismic wave, the displacement (77.1 mm) of the body satisfied the allowable displacement (220 mm), but The Hachinohe seismic wave (282.8 mm) did not. It is considered that displacement caused by combined load is affected not only by acceleration but also by characteristics of materials.
참고문헌 (7)
- 하익수, "여유고만으로 추정된 국내 재해위험 저수지의 지진시 파괴확률", 대한토목학회논문집(국문), 36(3), pp.451~461 (2016), 대한토목학회[DOI]
- 심재욱, "앵커지지 흙막이 벽체의 합리적인 3차원 수치해석기법 적용에 관한 연구", 한국지반공학회논문집, 32(4), pp.29~39 (2016), 한국지반공학회
- Korea Rail Network (KORAIL), "Rail design standards", 298~ (2013)
- Korea Infrastructure Safety Corporation (KISTEC), "Assessment and improvement of seismic performance of existing dam", pp.61~ (2004)
- 임성윤, "지진 모형시험을 통한 농업용 저수지 거동 평가", 한국농공학회논문집, 57(3), pp.55~63 (2015), 한국농공학회
- 박인준, "국내 저수지 댐의 내진 성능 평가", 한국지반환경공학회 논문집, 7(6), pp.89~100 (2006), 한국지반환경공학회
- 신은철, "소규모 농업용 저수지의 안전관리 개선 방향", 한국지반신소재학회 논문집, 11(3), pp.53~58 (2012), 한국지반신소재학회