Resource

Articulating Concrete Block (ACB) Design Practice Update

Resource Type
ASDSO Conference Papers
Reference Title
Articulating Concrete Block (ACB) Design Practice Update
Author/Presenter
Thornton, Christopher I
Organization/Agency
Association of State Dam Safety Officials
Publisher Name
Association of State Dam Safety Officials
Year
2022
Date
September 18-22, 2022
Event Name
Dam Safety 2022 - 39th Annual Conference
Event Location
Baltimore, Maryland
ASDSO Session Title
Concurrent Session 7 – Potpourri Grab N Go
Abstract/Additional Information

ABSTRACT ONLY - This presentation will provide guidance to the current industry best design practices for ACB systems under all open channel hydraulic flow conditions as described in the NEH Part 628 Dams Chapter 54 ACB Armored Spillways, developed by the NRCS, as well as the ACB specification developed and utilized by the USACE Jacksonville District. ACB design practices have continually evolved since their commercial introduction over 40 years ago. Updates in Factor of Safety (FOS) calculations, full scale flume test procedures and data analysis have continually been realized over the over the last 25 years, including testing and analysis of ACB systems under hydraulic jump conditions on steep slopes undertaken in the past 10 years. The new design guides provide more robust design analysis than the former guides can provide.

Full Paper
Please log in to view Members Only content