Development of three-dimensional soil-amplification analysis method for screening for seismic damage to buried water-distribution pipeline networks

Kohei Fujita, Tsuyoshi Ichimura, Motoki Kazama, Susumu Ohno, Shingo Sato

Research output: Contribution to journalArticle

Abstract

A soil-amplification analysis method is developed that uses high-resolution ground data and a three-dimensional nonlinear dynamic finite-element method to screen for possible areas of seismic damage to buried water-distribution pipeline networks. The method is applied to a cut-and-fill developed area in Japan, whose water-distribution pipeline network was severely damaged in the 2011 off the Pacific Coast of Tohoku Earthquake. The obtained soil amplification is compared with known points of pipeline damage to check the validity of the analysis. A sensitivity test is also conducted to account for uncertainties in the properties of the ground material. From the results, it is expected that the developed soil-amplification method could be used to screen for possible damage to buried pipelines in a given area, and used to support methods for estimating damage to buried pipelines based on observations and seismic indices.

Original languageEnglish
Article number170
JournalGeosciences (Switzerland)
Volume8
Issue number5
DOIs
Publication statusPublished - 2018 May

Keywords

  • Finite-element method
  • Soil-amplification analysis
  • Three-dimensional analysis
  • Water-distribution pipeline network

ASJC Scopus subject areas

  • Earth and Planetary Sciences(all)

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