Addressing limitations in existing ‘simplified’ liquefaction triggering evaluation procedures: application to induced seismicity in the Groningen gas field

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Title: Addressing limitations in existing ‘simplified’ liquefaction triggering evaluation procedures: application to induced seismicity in the Groningen gas field
Authors: Green, RA
Bommer, JJ
Rodriguez-Marek, A
Maurer, BW
Stafford, PJ
Edwards, B
Kruiver, PP
De Lange, G
Van Elk, J
Item Type: Journal Article
Abstract: The Groningen gas field is one of the largest in the world and has produced over 2000 billion m3 of natural gas since the start of production in 1963. The first earthquakes linked to gas production in the Groningen field occurred in 1991, with the largest event to date being a local magnitude (ML) 3.6. As a result, the field operator is leading an effort to quantify the seismic hazard and risk resulting from the gas production operations, including the assessment of liquefaction hazard. However, due to the unique characteristics of both the seismic hazard and the geological subsurface, particularly the unconsolidated sediments, direct application of existing liquefaction evaluation procedures is deemed inappropriate in Groningen. Specifically, the depth-stress reduction factor (rd) and the magnitude scaling factor relationships inherent to existing variants of the simplified liquefaction evaluation procedure are considered unsuitable for use. Accordingly, efforts have first focused on developing a framework for evaluating the liquefaction potential of the region for moment magnitudes (M) ranging from 3.5 to 7.0. The limitations of existing liquefaction procedures for use in Groningen and the path being followed to overcome these shortcomings are presented in detail herein.
Issue Date: 1-Jan-2018
Date of Acceptance: 3-Oct-2018
URI: http://hdl.handle.net/10044/1/65222
DOI: https://dx.doi.org/10.1007/s10518-018-0489-3
ISSN: 1570-761X
Publisher: Springer (part of Springer Nature)
Journal / Book Title: Bulletin of Earthquake Engineering
Copyright Statement: © Springer Nature B.V. 2018. The final publication is available at Springer via https://dx.doi.org/10.1007/s10518-018-0489-3
Keywords: 0403 Geology
0905 Civil Engineering
Strategic, Defence & Security Studies
Publication Status: Published online
Embargo Date: 2019-10-09
Online Publication Date: 2018-10-09
Appears in Collections:Faculty of Engineering
Civil and Environmental Engineering
Geotechnics



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