• Title/Summary/Keyword: 일체형 식생호안블록

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Development and Hydraulic Characteristics of Continuous Block System in River Bank Protection (I) - Development and Application Review through Hydraulic Model Test - (일체형 식생호안블록 시스템 개발 및 수리특성 연구(I) -일체형 호안블록 개발 및 수리모형실험을 통한 적용성 검토-)

  • Jang, SukHwan
    • Journal of Wetlands Research
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    • v.10 no.3
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    • pp.87-97
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    • 2008
  • This research focused on development and application feasibility for the coalesced continuous block system in river bank protection. Most of block systems in river bank are pre cast type and have some difficulties against high velocity flood condition or high pressure load, however, the continuous block system can be applied to flood damage recover as well as environmental vegetation block system in river bank. For the application review and analysis of hydraulic condition for this block system, hydraulic physical modeling was carried out. The physical model was built as a scale of 1:50 by Froude similitude measuring the water levels and the water velocities for vegetation application or not. In consequence, the water velocities were observed to decrease meanly 10.1%, and the water depths were to increase meanly 17.8% in case of the of design flood, $Q=200m^3/sec$. To verify the hydraulic physical modeling, the numerical modeling should be conducted for a close examination of vegetation application by one or two dimensional numerical analysis as a next study.

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Development and Hydraulic Characteristics of Continuous Block System in River Bank Protection (II) - Comparison of Numerical Analysis with Physical Modeling - (일체형 식생호안블록 시스템 개발 및 수리특성 연구(II) -일체형 호안블록시스템 수치모의를 통한 효과 분석-)

  • Jang, SukHwan
    • Journal of Wetlands Research
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    • v.10 no.3
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    • pp.99-109
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    • 2008
  • This research focused on analyzing and comparing between the results of hydraulic physical modeling and the results of numerical modeling of continuous block system in river bank protection which is newly developed in-situ block system. To verify the hydraulic physical modeling and review the effectiveness, the numerical modeling was needed against the model test results for vegetation application or not. HEC-RAS model was for 1 dimensional numerical analysis and SMS was for 2 dimensional numerical analysis. The results of the two dimensional numerical simulation, under the condition of roughness coefficient calibration, show similar and rational consequence against the physical modeling. These satisfactory results show that the accomplished results of hydraulic modeling and the predicted results of numerical modeling corresponded reasonably each others.

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