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case study : Mazar CFRD dam
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1
Design issues and performance of Mazar Dam
Etienne FROSSARD1, Ana Luca MOREIRA-YODA2, Cristian NIETO-GAMBOA1 , Secundo VANEGAS VALENCIA3
1 TRACTEBEL Engineering-COYNE & BELLIER; 2 TRACTEBEL Engineering- LEME Eng., 3 CELEC-HIDROPAUTE
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Design and performance of Mazar Dam
A 166m CFRD project in a deep narrow canyon, with a large ungated spillway
Dr. E.FROSSARD
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Design and performance of Mazar Dam
A steep overhanging right bank
Dr. E.FROSSARD
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Design and performance of Mazar Dam
Settlements and contact shear at abutments
Dr. E.FROSSARD
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Design and performance of Mazar Dam Settlements induced strains in dam body
Dr. E.FROSSARD
Risks for
concrete facing
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Design and performance of Mazar Dam The key role of rockfill rigidity
Dr. E.FROSSARD
Modulos de Rigidez Ev
observados en obras construidas(Documento Icold 2002- Tabla 11-1- datos Rockfill )
0
50
100
150
200
250
0% 20% 40% 60% 80% 100%
Probabilidad de excedencia
Mo
du
lo d
e r
igid
ez (
MP
a)
Alto Anchicaya
Golillas
Mazar- caso 40 / 30
Mazar- caso 80 / 50
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Design and performance of Mazar Dam
Limitations in right bank reshaping layout
Dr. E.FROSSARD
Face
Rockfill
~ 50m
Crest
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Design and performance of Mazar Dam Study of reshaping efficiency through FEM
Dr. E.FROSSARD
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Design and performance of Mazar Dam
The reshaped right bank: - Plinth alignment
-Water intake and mid level outlet
Dr. E.FROSSARD
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Design and performance of Mazar Dam General view of works on dam site
Dr. E.FROSSARD
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Design and performance of Mazar Dam A special joint for right bank plinth
Dr. E.FROSSARD
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Design and performance of Mazar Dam General design of dam facing to mitigate the risks
Dr. E.FROSSARD
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Design and performance of Mazar Dam
Finishing joints works near right abutment
Dr. E.FROSSARD
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Design and performance of Mazar Dam Impounding movements at special RB joint
Dr. E.FROSSARD
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This presentation will be available for download from
November 3, 2011 on,
at the website: www.cbdb.org.br