Commenced in January 2007
Frequency: Monthly
Edition: International
Paper Count: 30236
Designing Offshore Pipelines Facing the Geohazard of Active Seismic Faults

Authors: Maria S. Trimintziou, Michael G. Sakellariou, Prodromos N. Psarropoulos

Abstract:

The current study focuses on the seismic design of offshore pipelines against active faults. After an extensive literature review of the provisions of the seismic norms worldwide and of the available analytical methods, the study simulates numerically (through finite-element modeling and strain-based criteria) the distress of offshore pipelines subjected to PGDs induced by active normal and reverse seismic faults at the seabed. Factors, such as the geometrical properties of the fault, the mechanical properties of the ruptured soil formations, and the pipeline characteristics, are examined. After some interesting conclusions regarding the seismic vulnerability of offshore pipelines, potential cost-effective mitigation measures are proposed taking into account constructability issues.

Keywords: Seismic Design, Active Faults, offshore pipelines

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1109850

Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 1707

References:


[1] ISO 19901-2, Petroleum and natural gas industries-Specific requirements for offshore structures, Part 2- Seismic design procedures and criteria, 2004.
[2] American Petroleum Institute, Recommended practice 1111, fourth edition, Design, Construction, Operation and Maintenance of Offshore Hydrocarbon Pipelines (Limit State Design), December 2009.
[3] DNV, Offshore Standard-F101, Submarine pipeline systems, 2012
[4] Eurocode 8, Design of structures for earthquake resistance, Part 4: Silos, tanks and pipelines, CEN-ENV, European Committee for Standardization, Brussels, 2006.
[5] IITK-GSDMA, Guidelines for seismic design of buried pipelines, NICEE, India, 2007.
[6] American Lifelines Alliance – ASCE, Guidelines for the design of buried steel pipe, 2001.
[7] Konagai K. et al., “Key Points for Rational Design for Civil Infrastructures near Seismic Faults Reflecting Soil-Structure Interaction Features”, Report of JSPS research project, grant-in-aid for scientific research (A) Project No.16208048, 2006.
[8] Hamada, M. “Measures and designs of lifelines against fault-induced ground surface ruptures,” Seismic Fault Induced Failures, Workshop, JSCE (Konagai, K., Hori, M., Meguro, K. and Koseki, J., eds.), pp. 119– 130, 2003.
[9] Newmark N.M., Hall W.J., “Pipeline Design to Resist Large Fault Displacement”, Proceedings of the 1975 U.S. National Conference on Earthquake Engineering, Ann Arbor, Michigan, pp. 416-425, 1975
[10] Kennedy R.P., Chow A.W., Williamson R.A, “Fault movement effects on buried oil pipeline”, Journal of the Transportation Engineering Division, ASCE, 1977, vol.103, pp. 617–33.
[11] Wang L.R.L., Yeh Y., “A refined seismic analysis and design of buried pipeline for fault movement”, Journal of Earthquake Engineering and Structural Dynamics, 1985, vol. 13, pp. 75–96.
[12] Karamitros D., Bouckovalas G., Kouretzis G., “Stress Analysis of buried Steel Pipelines at Strike-Slip Fault Crossings”, Soil Dynamics and Earthquake Engineering, 2007, vol. 27, pp. 200-211.
[13] Trifonov OV, Cherniy VP., “A semi-analytical approach to a nonlinear stress-strain analysis of buried steel pipes crossing active faults”, Earthquake Engineering and Structural Dynamics, 2010, vol. 30(11), pp. 1298-208.
[14] Karamitros D., Bouckovalas G., Kouretzis G., “An analytical method for strength verification of buried steel pipelines at normal fault crossings”, Soil Dynamics and Earthquake Engineering, 2011, vol. 31, pp. 1452- 1464.
[15] Trifonov OV, Cherniy VP, “Elastoplastic stress–strain analysis of buried steel pipelines subjected to fault displacements with account for service loads”, Earthquake Engineering and Structural Dynamics, 2012, vol. 33, pp. 54-62.
[16] O’Rourke MJ, Liu X., Seismic design of buried and offshore pipelines, Monograph Series, Multidisciplinary Center for Earthquake Engineering Research, (MCEER), 2012.