By Edited by Peter W. McDonough
This booklet highlights seismic possibility mitigation problems with curiosity to engineers and executives chargeable for the functionality and security of common gasoline pipelines. even if an earthquake fault is obvious at the floor or hidden underground, faults are the main catastrophic failure mechanism for pipelines, even if floor shaking, soil liquefaction, landslides, and tsunamis additionally threaten the integrity of pipeline structures. whilst a pipeline incorporates average fuel, the results of a rupture should be unsafe to existence and damaging to estate. This choice of essays examines 5 assorted techniques to expanding the seismic resilience of normal gasoline pipelines: use of geofoam as backfill for pipelines; inner pipe lining ideas to extend pipeline power; computer-based facility approach modeling to count on disasters; pipeline integrity administration, which now contains addressing seismic dangers; and seismic shutoff valves and extra move valves. This e-book is an up to date reference for engineers and bosses operating to reinforce the seismic resilience of typical fuel pipeline platforms. scholars in structural and architectural engineering will welcome the transparent, concise presentation of a massive part of structural layout.
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This booklet highlights seismic probability mitigation problems with curiosity to engineers and executives chargeable for the functionality and security of normal fuel pipelines. even if an earthquake fault is obvious at the floor or hidden underground, faults are the main catastrophic failure mechanism for pipelines, even if flooring shaking, soil liquefaction, landslides, and tsunamis additionally threaten the integrity of pipeline structures.
Additional info for Seismic Resilience of Natural Gas Systems - Improving Performance
S. (1996a). “Geofoam Geosynthetic: Past, Present, and Future,” Electronic Journal of Geotechnical Engineering. Horvath, J. S. (1996b). ” Proc. Intl. Sym. on EPS Construction Method (EPS Tokyo '96), Tokyo, Japan: 71-81. S. (1997). "The compressible inclusion function of EPS geofoam," Geotextiles and Geomembranes, 15 (1-3): 77-120. S. (2008). “Extended Veletsos-Younan Model for Geofoam Compressible Inclusions Behind Rigid, Non-Yielding Earth-Retaining Structures,” Geotechnical Earthquake Engineering and Soil Dynamics IV, American Society of Civil Engineers Geo-Institute, Sacramento, California, May 18 to 22, 2008.
The methodology must include recordkeeping provisions and a communications plan that addresses the way safety concerns raised by federal or local safety agencies will be handled. This communication plan must provide information on the pipeline to property owners and others who might live or work adjacent to the pipeline and who might be affected by pipeline failure. Primary risks to the integrity of a pipeline are identified defects such as dents or wall thickness abnormalities, as might be caused by corrosion.
The spiral ribbing technique has not yet been tried in natural gas applications, and the ability to produce a gas tight seal is open to discussion. Seismic Mitigation Benefits From a seismic mitigation standpoint all four techniques provide a method to decrease the probability of pipeline leakage due to their adding a layer of additional material to the interior of the existing pipe. However, it can be argued that the thicker the lining material, with an implied greater overall strength, the more resilient the pipeline will be to shaking or joint separation damage.