Case studies of earthquake-induced ground movement effects on concrete channels

Craig A. Davis, Jianping Hu, J. P. Bardet

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Case studies are presented for two concrete lined channels shaken by strong ground motions during the 1994 Northridge earthquake, the High Speed (HSC) and Bypass Channels (BC), on the Los Angeles Department of Water and Power's Van Norman Complex. Performances of these two channels as they pass through different subsurface materials identify several important seismic aspects and the critical role of geotechnical earthquake engineering in assessing channel behaviors. Preliminary evaluations using detailed mapping of channel cracks, permanent ground movements, subsurface profiles, and nearby strong ground motion recordings from the 1994 earthquake show that the channel liners may have been damaged from both transient motions and permanent ground movements. Damage from permanent ground deformations is obvious by observation; therefore simplified analyses are presented only for transient movements. Site specific transient response analyses are performed to help provide an initial assessment of the differing effects from transient and permanent ground movements on HSC and BC liner damage. These case studies are helpful for introducing the potential for lifeline damage from transient movements within zones of permanent ground movement, a concept not well understood in the earthquake engineering community. Copyright ASCE 2008.

Original languageEnglish (US)
Title of host publicationProceedings of session of GeoCongress 2008 - GeoCongress 2008
Subtitle of host publicationGeosustainability and Geohazard Mitigation, GSP 178
Pages303-310
Number of pages8
Edition178
DOIs
StatePublished - Dec 1 2008
Externally publishedYes
EventGeoCongress 2008: Geosustainability and Geohazard Mitigation - New Orleans, LA, United States
Duration: Mar 9 2008Mar 12 2008

Publication series

NameGeotechnical Special Publication
Number178
ISSN (Print)0895-0563

Other

OtherGeoCongress 2008: Geosustainability and Geohazard Mitigation
CountryUnited States
CityNew Orleans, LA
Period3/9/083/12/08

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Architecture
  • Building and Construction
  • Geotechnical Engineering and Engineering Geology

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