SAKHALIN, FAR EASTName of the project: Sakhalin II – Onshore pipelines Goal of the project:...
Transcript of SAKHALIN, FAR EASTName of the project: Sakhalin II – Onshore pipelines Goal of the project:...
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Jan Novotný
Charles University in Prague, Faculty of Science, Czech Republic ARCADIS CZ a.s., division Geotechnika, Czech Republic
SAKHALIN , FAR EASTLandslides and construction
of oil and gas pipeline
Addis Ababa University, EthiopiaOctober / November 2013
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Sakhalin, Far East, Landslides and construction of oil and gas pipeline
Client: Sakhalin Energy Investment Company Ltd (SEIC)
(Shell, Mitsubishi a Mitsui)
Geological service of the client: Scott Wilson Kirkpatrick & Co Ltd.
Geological investigation: Inzashita
Contractor: Starstroj
Geological service of the contractor: ARCADIS
Name of the project: Sakhalin II –Onshore pipelines
Goal of the project: construction of gas and oil pipeline from North of Sakhalin to the south
Construction of oil and gas pipelines
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Sakhalin, Far East, Landslides and construction of oil and gas pipeline
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Sakhalin, Far East, Landslides and construction of oil and gas pipeline
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Sakhalin, Far East, Landslides and construction of oil and gas pipeline
Engineering geological problems to be solved:
Liquefaction of sandy sediment due to earthquake
Low bearing capacity of subsoil
Active tectonics
Slope stability Landslides and erosion
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Sakhalin, Far East, Landslides and construction of oil and gas pipeline
Hilly area around the city of Makarov
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Sakhalin, Far East, Landslides and construction of oil and gas pipeline
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Sakhalin, Far East, Landslides and construction of oil and gas pipeline
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Sakhalin, Far East, Landslides and construction of oil and gas pipeline
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Sakhalin, Far East, Landslides and construction of oil and gas pipeline
EROSION
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Sakhalin, Far East, Landslides and construction of oil and gas pipeline
EROSION
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Sakhalin, Far East, Landslides and construction of oil and gas pipeline
EROSION
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Sakhalin, Far East, Landslides and construction of oil and gas pipeline
EROSION
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Sakhalin, Far East, Landslides and construction of oil and gas pipeline
EROSION
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Sakhalin, Far East, Landslides and construction of oil and gas pipeline
EROSION
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Sakhalin, Far East, Landslides and construction of oil and gas pipeline
LANDSLIDES
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Sakhalin, Far East, Landslides and construction of oil and gas pipeline
EROSION - LANDSLIDES
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Sakhalin, Far East, Landslides and construction of oil and gas pipeline
Morphology interpretation
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Sakhalin, Far East, Landslides and construction of oil and gas pipeline
Morphology interpretation
Landslides
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Sakhalin, Far East, Landslides and construction of oil and gas pipeline
Morphology interpretation
Landslides
River terraces
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Sakhalin, Far East, Landslides and construction of oil and gas pipeline
Morphology interpretation
Landslides
River terraces
Rock structure
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Sakhalin, Far East, Landslides and construction of oil and gas pipeline
Morphology interpretation
Landslides
River terraces
Rock structure
Rock structure
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Sakhalin, Far East, Landslides and construction of oil and gas pipeline
Morphology interpretation
Landslides
River terraces
Rock structure
Rock structure
Faults
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Sakhalin, Far East, Landslides and construction of oil and gas pipeline
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Sakhalin, Far East, Landslides and construction of oil and gas pipeline
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Sakhalin, Far East, Landslides and construction of oil and gas pipeline
Principles of landslide hazard mitigation – to avoid landslide areas, to route pipelines on ridges not affected by landslides, to a void routing on steeper side slopes
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Sakhalin, Far East, Landslides and construction of oil and gas pipeline
Across unstable areas in shallow landslides – to rem ove unstable ground or to deepen the route of the pipelines until reaching stable ro ck
RUPTURE SURFACE
Trial pit at shallow landslide - slip surface up to 3,5 munder ground
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Sakhalin, Far East, Landslides and construction of oil and gas pipeline
OKHOTSK SEA
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Sakhalin, Far East, Landslides and construction of oil and gas pipeline
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Sakhalin, Far East, Landslides and construction of oil and gas pipeline
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Sakhalin, Far East, Landslides and construction of oil and gas pipeline
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Sakhalin, Far East, Landslides and construction of oil and gas pipeline
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Sakhalin, Far East, Landslides and construction of oil and gas pipeline
UNEXPLODED ORDNANCE
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LEATHER PRODUCTION, WOOD PRODUCTION, COAL MINING, FISHING
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CRAB FISHING NET
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Conclusion
• To diminish impact of geological hazards on the construction and operation of roads and pipelines – anticipation of potential geological problems at an early stage of project
• During construction, mistakes from early routing decision is possible to mitigate only in limited extent by rerouting of smaller sections and thus to avoid problems areas
• If it is not possible avoid problems areas -engineering geologist works in cooperation with engineer in order to pass successfully troubleshoot areas or to solve problems that have already occurred.
Sakhalin, Far East, Landslides and construction of oil and gas pipeline