Regional modeling of liquefaction-induced ground deformation

Jean-Pierre Bardet, Tetsuo Tobita, Nicholas Mace, Jianping Hu

Research output: Contribution to journalArticle

49 Citations (Scopus)

Abstract

Liquefaction-induced ground deformations are permanent ground displacements resulting from earthquakes, which can extend over areas as large as a few square kilometers and have amplitudes ranging from a few centimeters to few tens of meters. This type of ground deformation caused substantial damage to lifelines and pile-foundations of buildings and bridge piers along the Kobe shoreline during the 1995 Hyogoken-Nanbu, Japan, earthquake. This paper presents a four-parameter multiple-linear-regression model for estimating the amplitude of liquefaction-induced ground displacement for both ground-slope and free-face conditions at a regional scale. The applicability of the model for mapping the amplitude of liquefaction-induced ground deformation is investigated over selected regions. The paper also presents a regional model for estimating the probability for the displacements to exceed some threshold amplitude, and to fall within confidence intervals. Both models are useful for risk assessment to spatially distributed lifeline networks resulting from future earthquakes.

Original languageEnglish (US)
Pages (from-to)19-46
Number of pages28
JournalEarthquake Spectra
Volume18
Issue number1
DOIs
StatePublished - Feb 2002
Externally publishedYes

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liquefaction
Liquefaction
Earthquakes
earthquakes
earthquake
modeling
pile foundations
estimating
wharves
Bridge piers
shorelines
Pile foundations
risk assessment
pier
Linear regression
Risk assessment
confidence interval
regression analysis
confidence
shoreline

ASJC Scopus subject areas

  • Geophysics

Cite this

Regional modeling of liquefaction-induced ground deformation. / Bardet, Jean-Pierre; Tobita, Tetsuo; Mace, Nicholas; Hu, Jianping.

In: Earthquake Spectra, Vol. 18, No. 1, 02.2002, p. 19-46.

Research output: Contribution to journalArticle

Bardet, Jean-Pierre ; Tobita, Tetsuo ; Mace, Nicholas ; Hu, Jianping. / Regional modeling of liquefaction-induced ground deformation. In: Earthquake Spectra. 2002 ; Vol. 18, No. 1. pp. 19-46.
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