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http://dx.doi.org/10.13087/kosert.2012.15.1.119

Applicability Evaluation of Tetrapod Debris Barrier -A Case of Honggyeri Area in Sanchung County-  

Kim, Ki Heung (Dept. of Civil Eng., Gyeongnam National University of Science and Technology)
Park, Jae Hyeon (Dept. of Forest Resources, Gyeongnam National University of Science and Technology)
Ma, Ho Seop (Dept. of Forest Environmental Resources, Gyeongsang National University)
Publication Information
Journal of the Korean Society of Environmental Restoration Technology / v.15, no.1, 2012 , pp. 119-132 More about this Journal
Abstract
In order to connect eco-corridor and to harmonize with natural environment, it is necessary to construct small debris barrier. Therefore, we will evaluate applicability of small debris barrier which made of tetrapod utilized in construction of seashore protection facilities and breakwater. From result compared with the adaptation processes in fields, tetrapod were stabilized to critical tractive force. Stability evaluation method on sliding and overturn of tetrapod debris barrier was developed, and hereafter could be applied to similar debris barriers. According to results analyzed to continuity on sediment supply in debris barrier, boulders were deposited in upstream and gravels were deposited in downstream. Therefore, tetrapod debris barrier will be able to prevent in the long-term the erosion of river bed in down-stream, and the maintenance is easy because dredging is not necessary. Current were formed in between the tetrapod provided eco-corridors for fishes and shellfishes.
Keywords
Continuity; Overturn; Sediment; Sliding; Stability;
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