ASDSO Dam Safety Toolbox

Global Stability of a Dam

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Learn more about the need to consider uplift pressure when designing a gravity structure at DamFailures.org


"Design and evaluation of hydraulic structures requires and understanding of the interaction between the flow and the components of the structure. The non-hydrostatic forces generated by the flowing water are of particular interest. Historically, physical models have been the primary means for predicting hydrodynamic forces on hydraulic structures. Laboratory studies of hydraulic loadings require relatively large-scale physical models which are expensive to construct, instrument, and operate. The hydraulic evaluation costs can be decreased if computational methods are used in lieu of such physical models studies. Numerical models capable of calculating hydraulic loads on bridge piers, lock guard walls, culvert valves, tainter valves, floodwalls, and moored ships will result in more cost-effective structural, mechanical, and geotechnical designs."[1]

Required Data

Evaluation Criteria

Types of Analyses

Examples

Learn more about the need to consider uplift pressure (DamFailures.org)

Learn from the critical oversights that led to the failure of St. Francis Dam (DamFailures.org)

Best Practices Resources

Design Standards No. 13: Embankment Dams (Ch. 6 Bulkhead Gates and Stoplogs), USBR, 2018

Design and Construction Considerations for Hydraulic Structures: Roller-Compacted Concrete, USBR, 2017

Strength Design for Reinforced Concrete Hydraulic Structures (EM 1110-2-2104), USACE, 2016

Design Standards No. 13: Embankment Dams (Ch. 13: Seismic Analysis and Design), USBR, 2015

Design of Hydraulic Steel Structures (ETL 1110-2-584), USACE, 2014

Design Standards No. 13: Embankment Dams (Ch. 9 Static Deformation Analysis), USBR, 2011

Design Standards No. 13: Embankment Dams (Ch. 4 Static Stability Analysis), USBR, 2011

Calculating Forces on Components of Hydraulic Structures (ERDC/CHL CHETN-IX-21), USACE, 2009

Earthquake Design and Evaluation of Concrete Hydraulic Structures (EM 1110-2-6053), USACE, 2007

Stability Analysis of Concrete Structures (EM 1110-2-2100), USACE, 2005

Roller-Compacted Concrete (EM 1110-2-2006), USACE, 2000

Gravity Dam Design (EM 1110-2-2200), USACE, 1995

Arch Dam Design (EM 1110-2-2201), USACE, 1994

Lock Gates and Operating Equipment (EM 1110-2-2703), USACE, 1994

Nonlinear, Incremental Structural Analysis of Massive Concrete Structures (ETL 1110-2-365), USACE, 1994

Design of Small Dams, USBR, 1987

Trainings

On-Demand Webinar: Rehabilitation of Concrete Dams

On-Demand Webinar: Stability Evaluations of Concrete Dams

On-Demand Webinar: Analysis of Concrete Arch Dams

On-Demand Webinar: Introduction to Concrete Gravity Dams


Citations:


Revision ID: 4300
Revision Date: 11/18/2022