challenges of dams in cold climates - ussd · challenges of dams in cold climates •dam type...
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![Page 1: Challenges of Dams in Cold Climates - USSD · Challenges of Dams in Cold Climates •Dam Type Selection •Logistics in Remote Territories •Short Construction Seasons •Severely](https://reader031.vdocuments.mx/reader031/viewer/2022022108/5bf7b47709d3f2ac7c8bcd05/html5/thumbnails/1.jpg)
Challenges of Dams in Cold Climates
• Dam Type Selection
• Logistics in Remote Territories
• Short Construction Seasons
• Severely Constrained Sites
• Protective Measures for Concrete
• Membranes
• Volcanoes, Earthquakes and Faults
USSD Cold Regions Engineering Conference
Anchorage, Alaska September 20 and 21, 2017
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Karahnjukar Hydro Project,
Landsvirkjun - Iceland
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Karahnjukar Hydro Project,
Landsvirkjun - Iceland
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Karahnjukar Engineering Joint Venture
KEJV
MWH was a member of the VST
Sponsored Joint Venture retained for
Design and Engineering Support During
Construction
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General Layout of Main Dam
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Main Dam Maximum Cross Section
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▪ Mobilization in Remote Area
▪ Jökuldalur Canyon: Construction of Toe Wall
▪ Jökuldalur Canyon: Dam Fill
▪ Plinth Construction
▪ Face Slab Construction
Specifc Site Challenges and Solutions
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Arrange
Accommodation
for >1200 persons
Erect Plants and
Workshops
River Diversion &
Dam Excavation
Mobilization: Challenges
Rem
ote
Are
a
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Temporary
accommodation &
Installation
Mobilization: Solutions
Rem
ote
Are
a
Subcontracting
Know-How &
Experienced
Personnel
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Early Start of Excavation
USSD Cold Regions Engineering
Conference Anchorage, Alaska
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Jökuldalur Canyon: Challenges
Toe W
all
Constr
uction
198m
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Concrete
Distribution
Jökuldalur Canyon: Solutions
Toe W
all
Constr
uction
Winterizing
HOT AIR
SHELTER
Toe Wall
Completed
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Core Wall With PVC Membrane
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Jökuldalur Canyon: Challenges
Dam
Fill
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0-300mm 0-40mm 40-150mm 150-300mm
Jökuldalur Canyon: Solutions
Dam
Fill
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Jökuldalur Canyon: Solutions
Dam
Fill
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Processing Plant
Conveyor
Distribution
Jökuldalur Canyon: Solutions
Dam
Fill
Rock Ladder
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View of Distribution Opeeations
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Plinth Construction: Challenges
Ste
ep S
lope a
nd A
rtic
Weath
er
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Rockfall
protection
Ste
ep S
lope a
nd A
rtic
Weath
er
Erect protective
shelter
Winterizing
HOT AIR
Plinth Construction: Solutions
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Face Slab Construction: Challenges
Schedule
and A
rtic
Weath
er
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Starter Slabs &
paving machine
Face Slab Construction: Solutions
Multi tasks
Winterizing
HOT WATER
HOT AIR
Schedule
and A
rtic
Weath
er
INSULATING MATS
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February 2006
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June 2006
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Winter 2008