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http://dx.doi.org/10.5762/KAIS.2012.13.12.6151

A Real Scale Experimental Study for Evaluation of Permissible Shear Stresses on Vegetation Mats  

Lee, Du Han (River and Coastal Research Division, Korea Institute of Construction Technology)
Kim, Dong-Hee (Construction Quality & Safety Assessment Division, Korea Institute of Construction Technology)
Kim, Myounghwan (River and Coastal Research Division, Korea Institute of Construction Technology)
Rhee, Dong Sop (River and Coastal Research Division, Korea Institute of Construction Technology)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.13, no.12, 2012 , pp. 6151-6158 More about this Journal
Abstract
By the activation of environment-friendly river works, application of vegetation mats is increasing, however, evaluation techniques for hydraulic stability of vegetation mats are not presented. This study is conducted to develop the objective test method for vegetation mats. Two kind of vegetation mats are tested by the real scale experiments, and hydraulic quantities are measured and analyzed to evaluate acting shear stresses. Roughness and shear stress are evaluated by 1 D non-uniform model. After each tests, changes in mat surfaces and sub-soil are evaluated, and from these evaluation, 3 types of mat surface damages and 2 types of sub-soil damages are presented. In the study, the case in which some damages in mat surface don't cause loss of sub-soil, is presented to be in the stable condition. Appling this stable condition and acting shear stresses, permissible shear stresses of vegetation mats are evaluated, and the results show that the reinforced mat with wire netting has more permissible shear stress.
Keywords
Vegetation mats; permissible shear stress; a real scale experiment; test method;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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