Title
Influence of permeability on sediment trapping efficiency in an Elj groyne field
Date Issued
01 January 2019
Access level
metadata only access
Resource Type
conference paper
Publisher(s)
American Society of Civil Engineers (ASCE)
Abstract
In woody areas where traditional construction materials are not available engineered log jams (ELJ) may constitute a potential solution for controlling riverbank erosion. Two ELJ groyne fields formed by four structures were placed in a 12 m long rectangular flume. In the first setup, groynes had a 46% permeability whereas in the second setup, groynes had a 26% permeability. Sediment in suspension was incorporated at a constant rate after flow was stabilized. Tests showed that when groyne permeability has higher, maximum scour depth at the inner end of the groyne diminished while sediment deposition between groynes increased. This result indicates that use of the main resource for building ELJ groynes can be optimized. As the configuration of the groynes was basically idealized as a frame of cylindrical elements, results of this experimental program may also be used to design groynes made up of artificial materials resembling ELJs. This type of solution could be used where traditional construction materials are not readily available.
Start page
229
End page
243
Language
English
OCDE Knowledge area
Ingeniería mecánica Ingeniería de materiales Física de plasmas y fluídos
Scopus EID
2-s2.0-85067289521
Resource of which it is part
World Environmental and Water Resources Congress 2019: Hydraulics, Waterways, and Water Distribution Systems Analysis - Selected Papers from the World Environmental and Water Resources Congress 2019
ISBN of the container
9780784482353
Source funding
Universidad Nacional de Ingenierias
Sponsor(s)
This study was partially funded through contract Nº 358-PNICP-PIAP-2014 between the National University of Engineering (UNI) and the National Innovation Program for Competitiveness and Productivity of the Ministry of Production (INNOVATE PERU).
Sources of information: Directorio de Producción Científica Scopus