Accession Number : ADA192487

Title :   Repair, Evaluation, Maintenance, and Rehabilitation Research Program. Stability of Dolos and Tribar Overlays for Rehabilitation of Stone-Armored Rubble-Mound Breakwater and Jetty Trunks Subjected to Breaking Waves.

Descriptive Note : Final rept.,

Corporate Author : COASTAL ENGINEERING RESEARCH CENTER VICKSBURG MS

Personal Author(s) : Carver, Robert D ; Wright, Brenda J

PDF Url : ADA192487

Report Date : Feb 1988

Pagination or Media Count : 35

Abstract : It was concluded that: (1) Randomly placed dolos are an acceptable option, provided that a stability coefficient of 12 is used to size the units; (2) Dolos stability proved to be sensitive to relative depth (d/L) and relative wave height (H/d) with minimum stability occurring at the lower values of d/L and higher values of H/d, i.e., longer wave periods in shallower water; (3) Randomly placed tribars are not recommended at slopes steeper than IV on 2H; however, they may be used at milder slopes with a stability coefficient of 9; (4) Uniformly placed tribars are an acceptable option for a IV-on-1.5H slope, provided they are used in concert with toe buttressing stone, size selections is based on a stability coefficients of 7, and placement of the units replicates that used in the model; (5) Tribar stability appears to be insensitive to d/L and H/d for both types of placement.

Descriptors :   *BREAKWATERS, *PROTECTIVE COVERINGS, DEPTH, HEIGHT, OVERLAYS, REHABILITATION, REPAIR, SENSITIVITY, VALUE, WAVES, WATER WAVES, MODEL TESTS, HYDRAULIC MODELS

Subject Categories : Civil Engineering

Distribution Statement : APPROVED FOR PUBLIC RELEASE