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Pipeline Integrity Management Under Geohazard Conditions (PIMG)

By
Mamdouh M. Salama
Mamdouh M. Salama
ConocoPhillips
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Yong-Yi Wang
Yong-Yi Wang
CRES
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Don West
Don West
Golder
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Alexander McKenzie-Johnson
Alexander McKenzie-Johnson
Geosyntec
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Azam B A-Rahman
Azam B A-Rahman
Petronas
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Guiyi Wu
Guiyi Wu
TWI
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Jens Petter Tronskar
Jens Petter Tronskar
DNVGL
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Jim Hart
Jim Hart
SSD Inc
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Bernt J. Leira
Bernt J. Leira
NTNU
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ISBN:
9780791861998
No. of Pages:
412
Publisher:
ASME Press
Publication date:
2020

A landslide investigation and mitigation was conducted for a pipeline in southeastern Ohio. The landslide, with a lateral extent of 185 feet and a length more than 300 feet had encroached on the pipeline right-of-way and impacted an existing 26-inch natural gas pipeline. The subsurface conditions were observed in test pits advanced parallel to the pipeline. The design parameters used in the stability evaluations were based on limit equilibrium and a back-analysis approach. A range of soil parameters were evaluated along with published literature and our prior experience working with similar landslides in the region to establish the likely...

INTRODUCTION
1.0
PROJECT BACKGROUND
2.0
GEOTECHNICAL INVESTIGATION SUMMARY
3.0
STABILIZATION CONSIDERATIONS
4.0
STABILIZATION DESIGN
5.0
STABILIZATION SUMMARY
6.0
PROJECT COMPLETION
7.0
DISCUSSION AND CONCLUSIONS
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