Please use this identifier to cite or link to this item:
Title: Evaluation of a permeable dam as an erosion control structure on Coca River, Ecuador
Authors: Ramos-Santiago, Efrain
Pagan-Albelo, Yamiretsy
Sharp, Jeremy A. (Jeremy Allen), 1982-
Blades, Curtis L.
Pigg, Kevin L.
Keywords: Coco River (Ecuador)
Hydraulic structures
Scour (Hydraulic engineering)
Publisher: Engineer Research and Development Center (U.S.)
Series/Report no.: Technical Report (Engineer Research and Development Center (U.S.)) ; no. ERDC/CHL TR-23-6
Abstract: The effort performed here describes the process to evaluate the scour-protection performance of the proposed permeable dam. The US Engineer Research and Development Center, Coastal and Hydraulics Laboratory, built a 1:50 Froude scaled movable bed section model of the permeable dam structure and tested in a specialized flume that simulates regressive erosion propagation. Profiles were collected at various times to track the progression of the scour. Tests evaluated variations of the proposed structure, which included tetrapods, riprap, bridge piers, and longitudinal piles. For the various proposed alternatives, a total of six tests were conducted. The collected profiles show the ability or inability of each alternative and its associated performance. From this analysis, untethered tetrapods could not effectively arrest the local scour around the structure. However, large rock along with invert control stopped the regressive erosion and held the upstream grade.
Description: Technical Report
Gov't Doc #: ERDC/CHL TR-23-6
Rights: Approved for Public Release; Distribution is Unlimited
Appears in Collections:Technical Report

Files in This Item:
File Description SizeFormat 
ERDC-CHL TR-23-6.pdf25.18 MBAdobe PDFThumbnail