Landslide hazard analysis for pipelines: The case of the Simonette river crossing
- Arista International, Inc., Niskayuna, NY (United States)
- NOVA Gas Transmission Ltd., Calgary, Alberta (Canada)
The overall objective of this study is to develop a probabilistic methodology to analyze landslide hazards and their effects on the safety of buried pipelines. The methodology incorporates a range of models that can accommodate differences in the ground movement modes and the amount and type of information available at various site locations. Two movement modes are considered, namely (a) instantaneous (catastrophic) slides, and (b) gradual ground movement which may result in cumulative displacements over the pipeline design life (30--40 years) that are in excess of allowable values. Probabilistic analysis is applied in each case to address the uncertainties associated with important factors that control slope stability. Availability of information ranges from relatively well studied, instrumented installations to cases where data is limited to what can be derived from topographic and geologic maps. The methodology distinguishes between procedures applied where there is little information and those that can be used when relatively extensive data is available. important aspects of the methodology are illustrated in a case study involving a pipeline located in Northern Alberta, Canada, in the Simonette river valley.
- OSTI ID:
- 205457
- Report Number(s):
- CONF-950695-; ISBN 0-7918-1311-8; TRN: IM9615%%237
- Resource Relation:
- Conference: International conference on offshore mechanics and arctic engineering, Copenhagen (Denmark), 18-22 Jun 1995; Other Information: PBD: 1995; Related Information: Is Part Of OMAE 1995 -- Proceedings of the 14. international conference on offshore mechanics and arctic engineering. Volume 5: Pipeline technology; Mercati, D. [ed.] [Snamprogetti SpA, San Donato Milanese (Italy)]; Murray, A. [ed.]; PB: 608 p.
- Country of Publication:
- United States
- Language:
- English
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