1. Waterpower XII USSD & ICOLD Workshop on Dam Research
2. USSD & ICOLD
3. USSD & ICOLD
4. USSD & ICOLD
5. USSD & ICOLD
6. USSD & ICOLD
8. Boulder Meeting USSD COMMITTEES
Construction & Rehab
Dam Safety & Security
Education & Training
Hydraulics of Dams
Methods of Numerical Analysis of Dams
Monitoring of Dams and their Foundations
Register of Dams
9. Waterpower XII USSD & ICOLD
10. Waterpower XII USSD & ICOLD
11. Waterpower XII USSD & ICOLD
12. Boulder Meeting World-Wide Seismicity
13. Boulder Meeting World-Wide Seismicity
14. Boulder Meeting World-Wide Seismicity
15. Boulder Meeting USSD Earthquakes Committee Mission :
-To identify seismic design needs for dams and to study, research or assemble updated information and disseminate to those responsible for dam design and operation.
-To work cooperatively with the ICOLD Committee on Seismic Aspects of Dam Design to develop reports and guidelines for world-wide distribution.
16. Boulder Meeting USSD Earthquakes Committee Recent Publications
-Observed Performance of Dams During EQs, Vol. 1
-Guidelines for Earthquake Design and Evaluation
of Structures Appurtenant to Dams
-Sixteenth Annual USCOLD Lecture (1996) -
Seismic Design and Performance of Dams
-Reservoir Triggered Seismicity (1997)
-Updated Guidelines for Selecting Seismic Parameters
for Dam Projects (1999)
-Observed Performance of Dams During Earthquakes,
Volume 2, (2000)
17. Boulder Meeting USSD Earthquakes Committee Recent Publications (cont’d)
-Guidelines on Design Features of Dams to Effectively Resist Seismic Ground Motions (2003)
-Guidelines for Inspection of Dams After Earthquakes (2003)
- Dam Modifications to Improve Performance During Strong Earthquakes (2003)
18. Boulder Meeting USSD Earthquakes Committee Publications in Progress:
- EQ Deformation Analysis of Embankment Dams
- Probabilistic Approach to Development
of Ground Motion Parameters at Dams
- Numerical Models for Seismic Analysis of
- Update of Strong Motion Records Report
19. Boulder Meeting ICOLD Committee Seismic Aspects of Dam Design Recent Publications:
Bulletin #46 – Seismicity & Dam Design
Bulletin #52 – Earthquake Analysis for Dams
Bulletin #72 – Selecting Seismic Parameters for Dams
Bulletin #112 – Neotectonics & Dams – Recommendations
& Case Histories (1998)
Bulletin #113 – Seismic Observations of Dams – Guidelines
& Case Histories (1999)
Bulletin #120 – Guideline on Design Features of Dams to Resist Seismic Ground Motion (2001)
20. Boulder Meeting ICOLD Committee Seismic Aspects of Dam Design Publications in Progress:
-Seismic Aspects of Structures Appurtenant to Dams
-Seismic Safety of Existing Dams
-Seismic Interpretation of Integrated Observation Data
-Reservoir Triggered Seismicity
-Seismic Risk Determination & Related Techniques
-Seismic Analysis & Design of Underground Construction for Hydro Power Plants
21. Boulder Meeting Observed Earthquake Performance of Dams Historically very few dams have been damaged by Earthquakes.
Only about a dozen dams are known to have failed completely – primarily tailings or hydraulic fill dams.
Only about a half dozen other embankment or concrete gravity dams of significant size have been damaged.
22. Boulder Meeting Observed EQ Performance Of Embankment Dams
Modern well-built embankment dams have performed well.
Compacted clay dams have performed well.
Rockfill and concrete-face rockfill dams have performed well.
Insufficiently compacted sand or silt dams and tailings and hydraulic fill dams have performed poorly.
23. Boulder Meeting Observed EQ Performance Of Concrete Dams Concrete arch dams have performed extremely well.
Concrete gravity and buttress dams have performed well.
Shih-Kang Dam experience confirmed that concrete dams cannot be designed to accommodate fault rupture.
24. Boulder Meeting Earthquake Design Of Appurtenant Structures To Dams Earthquake Input
Water Conduits, Gates and Valves
Pipelines and Penstocks
Gates and Valves
Navigation Locks and Structures
25. Boulder Meeting Earthquake Design Of Dams To Effectively Resist Seismic Ground Motion Review of Dam Performance
Dam Design Considerations
Damsite Shape and Geology
Selection of Dam Type
Special Features for Seismic Design
Landslides into the Reservoir
26. Boulder Meeting CONCLUSIONS