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Seismic Analyses of Embankment Dams and Slopes
Richard Armstrong, Civil Engineering
2021 ECS D3
2
Ground Motion Intensity Measures
𝐷𝑌𝐹
Time (sec)
2021 ECS D3
3
NDA Modeling and Validation
2021 ECS D3
4
Seismic Dam Damage Assessment
ShakeCast
2021 ECS D3
52021 ECS D3
Future Research
200 ft
400 ft
2H:1V t = t1, t2 d = d1, d2
(N1)60 = n1, n2
30 ft
Vs
Vs30
Vs
(used for IMs in NewmarkAnalyses)
(used for GM developmentand elastic half space)
30 m(98 ft)
20H:1V
42 ft
800 ft
100
ft
Dense sandSand
Stiff clayEmb.
Elastic half-space
Free-field
Free-field24 ft
GMsets
Groundmotions
Sandthick., t
Sanddepth, d
Sand SPT,(N1)60
Set A 11 GM Analysis
11 GM Analysis
11 GM Analysis
t1
d1
d2
ni
(i.e., n1 and n2 )
t2
t1
t2
Set B
Set A
Set B 11 GM Analysis
11 GM AnalysisSet A
Set B 11 GM Analysis
11 GM Analysis
11 GM Analysis
Set A
Set B
88 X 2
176 ANALYSES
62021 ECS D3
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