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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