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http://dx.doi.org/10.3741/JKWRA.2020.53.1.29

Restoration design of step-pool sequence in mountain streams  

Kim, Ki Heung (Department of Civil Engineering, Gyeongnam National University of Science and Technology)
Publication Information
Journal of Korea Water Resources Association / v.53, no.1, 2020 , pp. 29-43 More about this Journal
Abstract
The purpose of this study is to propose the design criteria and detailed design model by reviewing the issues related to geometry, formation process, destruction process, hydraulic function, restoration and ecological function of the step-pool from the existing research results, to apply the step-pool sequences to river restoration. Based on the analysis and review results, the design criteria for the structure and size of the step-pool are presented as ratio of the step spacing and the channel width, ratio of the unit step slope and channel slope, and ratio of step height and the particle size. To ensure structural stability of the step, stability analysis method of overturning based on the keystone theory was proposed as a design criterion. As a detailed design concept, a layout model was proposed by applying the imbricating structure of keystones and arch stones to the planar, longitudinal and transverse configurations of the step-pool.
Keywords
Stream restoration; Channel slope; Step spacing; Step height; Imbricating structure;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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