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Author

G. de Lange

Bio: G. de Lange is an academic researcher. The author has contributed to research in topics: Liquefaction & Seismic hazard. The author has an hindex of 2, co-authored 2 publications receiving 36 citations.

Papers
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Journal ArticleDOI
TL;DR: In this article, the authors present a framework for evaluating the liquefaction potential of the region for moment magnitudes ranging from 3.5 to 7.0 in the Groningen field.
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.

50 citations

Journal ArticleDOI
TL;DR: The operator of the Groningen gas field is leading an effort to quantify the seismic hazard and risk of the region due to induced earthquakes, including overseeing one of the most comprehen...
Abstract: The operator of the Groningen gas field is leading an effort to quantify the seismic hazard and risk of the region due to induced earthquakes, including overseeing one of the most comprehen...

20 citations


Cited by
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Journal ArticleDOI
TL;DR: Probabilistic assessments of the potential impact of earthquakes on infrastructure entail the consideration of smaller magnitude events than those generally considered in deterministic hazard and risk assessment as mentioned in this paper, which is not the case here.
Abstract: Probabilistic assessments of the potential impact of earthquakes on infrastructure entails the consideration of smaller magnitude events than those generally considered in deterministic hazard and ...

44 citations

Journal ArticleDOI
TL;DR: Semi-empirical models based on in situ geotechnical tests have been the standard-of-practice for predicting soil liquefaction since 1971 as mentioned in this paper, and they have been shown to be the state of the art.
Abstract: Semi-empirical models based on in situ geotechnical tests have been the standard-of-practice for predicting soil liquefaction since 1971. More recently, prediction models based on free, readily ava...

25 citations

Journal ArticleDOI
TL;DR: In this article, earthquakes occurring over the past decade in the Canterbury region of New Zealand have resulted in liquefaction case-history data of unprecedented quantity, which provides the profession with a uni...
Abstract: Earthquakes occurring over the past decade in the Canterbury region of New Zealand have resulted in liquefaction case-history data of unprecedented quantity. This provides the profession with a uni...

21 citations

Journal ArticleDOI
TL;DR: The operator of the Groningen gas field is leading an effort to quantify the seismic hazard and risk of the region due to induced earthquakes, including overseeing one of the most comprehen...
Abstract: The operator of the Groningen gas field is leading an effort to quantify the seismic hazard and risk of the region due to induced earthquakes, including overseeing one of the most comprehen...

20 citations