| Title | Seismic behavior of buried energy pipelines in northern permafrost regions
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| Author | Dadfar, D B; El Naggar, H E N; Nastev, M N |
| Source | 2015, 8 pages |
| Image |  |
| Year | 2015 |
| Alt Series | Earth Sciences Sector, Contribution Series 20150030 |
| Publisher | University of Canterbury (Christchurch, New Zealand) |
| Meeting | 6th International Conference on Earthquake Geotechnical Engineering; Christchurch; NZ; November 1-4, 2015 |
| Document | book |
| Lang. | English |
| Media | paper; on-line; digital |
| File format | pdf |
| Province | Canada; British Columbia; Alberta; Saskatchewan; Manitoba; Ontario; Quebec; New Brunswick; Nova Scotia; Prince Edward Island; Newfoundland and Labrador; Northwest Territories; Yukon; Nunavut;
Canada |
| NTS | 1; 2; 3; 10; 11; 12; 13; 14; 15; 16; 20; 21; 22; 23; 24; 25; 26; 27; 28; 29; 30; 31; 32; 33; 34; 35; 36; 37; 38; 39; 40; 41; 42; 43; 44; 45; 46; 47; 48; 49; 52; 53; 54; 55; 56; 57; 58; 59; 62; 63; 64; 65;
66; 67; 68; 69; 72; 73; 74; 75; 76; 77; 78; 79; 82; 83; 84; 85; 86; 87; 88; 89; 92; 93; 94; 95; 96; 97; 98; 99; 102; 103; 104; 105; 106; 107; 114O; 114P; 115; 116; 117; 120; 340; 560 |
| Lat/Long WENS | -141.0000 -50.0000 90.0000 41.7500 |
| Subjects | engineering geology; geophysics; soils science; pipelines; permafrost; seismic risk; earthquake risk; landslides; soil creep; soil properties; freezing ground; earthquake resistant design; earthquake
studies; seismic velocities; seismic waves; seismic zones; seismicity; seismic interpretations |
| Illustrations | structural cross-sections; stratigraphic cross-sections; tables; seismic velocity profiles; seismic profiles; structural diagrams; equations |
| Program | Public Safety Geoscience Quantitative risk assessment project |
| Released | 2015 01 01 |
| Abstract | Approximately one-third of Canada's marketable conventional resources of natural gas and recoverable light crude oil are found in the North. Pipelines, either above-ground or buried, are essential means
of transporting this energy supply to refineries and various users. Beside common geohazards, such as river erosion and landslide, earthquake triggered geohazards including transient ground shaking and permanent ground displacement due to
liquefaction can also jeopardize the integrity and safety of these pipelines. The main objective of the present study is to investigate the seismic behavior of buried pipelines in regions characterized with discontinuous permafrost conditions. To
achieve this goal, the impacts of local soil conditions and the dynamic interaction of large portions of randomly distributed blocks of frozen soil surrounded by unfrozen soil on the ground motion have been considered. In addition, a simplified
analysis has been developed to evaluate the seismic response of buried pipelines considering soil-pipe interaction, geometric nonlinearities and large deformations. |
| Summary | (Plain Language Summary, not published)
Pipelines, either above-ground or buried, are essential means of oïl and gas transport. They are occasionally exposed to earthquake triggered geohazards.
A computer program was developed for dynamic analysis of buried pipelines in discontinuous permafrost considering soil-pipe interaction, geometric nonlinearities and large deformations. |
| GEOSCAN ID | 296369 |
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