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http://dx.doi.org/10.17663/JWR.2013.15.1.091

Analysis on Dimensional Stability of Porosity Soil Block for Vegetation Reinforcement  

Park, Sang Woo (Department of Civil Engineering, Seonam University)
Ahn, Tae Jin (Department of Civil Safety Environment Engineering, Hankyong National University)
Ahn, Sang Ho (Department of Civil Engineering, Seonam University)
Kwon, Soon Hyun (Department of Civil Engineering, Seonam University)
Publication Information
Journal of Wetlands Research / v.15, no.1, 2013 , pp. 91-103 More about this Journal
Abstract
In this Research, in order to improve problems of not enough technical validation and structural and hydraulic stability evaluation when nature-friendly revetment block is applied to field, hydraulic stability evaluation according to hydraulic behavior change of porosity soil block for vegetation reinforcement that secures ecological function was reviewed. By selecting object section, numerical analysis and hydraulic model experiments were performed; for numerical analysis, by using 1-dimensional numerical analysis model HEC-RAS and 2-dimensional numerical analysis RMA-2, one-dimensional(1D) and two-dimensional(2D) numerical analysis were performed; by applying Froude's similarity law, reduced-scale hydraulic model experiments according to vegetation existence were performed. In hydraulic model experiment, for validity of experiment result, the result of velocity and tractive force of reduced-scale hydraulic model experiments was converted to prototype so that it can be compared and reviewed under the same condition of one-dimensional(1D) and two-dimensional(2D) numerical analysis result; as a result, it was confirmed that comparatively united result appeared, and by comparing prototype-converted tractive force result with revetment's allowable tractive force coming from an existing research, block's hydraulic stability was suggested.
Keywords
Allowable tractive force; Froude's similarity law; HEC-RAS; Hydraulic Model Experiments; RMA-2; Numerical analysis; Tractive force;
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