Dynamic centrifuge testing of a temporary braced excavation in dry sand

Kenneth M. Gillis, Shideh Dashti, Youssef M.A. Hashash, Maria Ines Romero Arduz, Martin C. Walker

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

Abstract

Today, most of the world's population lives in cities, where subway systems offer a sustainable means of public transportation. In many cases, underground transportation infrastructure is built near tall buildings with multistory basements. Although such buildings have the potential to alter ground motions in their vicinity and transmit forces to adjacent underground structures during earthquakes, these impacts are not well understood. Centrifuge testing combined with nonlinear numerical analyses are being employed to evaluate the seismic performance of interacting soil, structure, and underground structure systems. Two initial, baseline centrifuge tests involved permanent and temporary cut-and-cover box structures with no adjacent building present. This paper summarizes the planning and design of the baseline experiment on the seismic response of a temporary braced excavation (Test-2). An overview of the test setup, model construction, and instrumentation layout is provided, followed by a brief discussion of preliminary test results in terms of accelerations, racking deformations, and lateral earth pressures on the model structure during a series of broadband earthquake shaking events.

Original languageEnglish (US)
Title of host publicationGeo-Congress 2014 Technical Papers
Subtitle of host publicationGeo-Characterization and Modeling for Sustainability - Proceedings of the 2014 Congress
PublisherAmerican Society of Civil Engineers
Pages475-484
Number of pages10
Edition234 GSP
ISBN (Print)9780784413272
DOIs
StatePublished - 2014
Event2014 Congress on Geo-Characterization and Modeling for Sustainability, Geo-Congress 2014 - Atlanta, GA, United States
Duration: Feb 23 2014Feb 26 2014

Publication series

NameGeotechnical Special Publication
Number234 GSP
ISSN (Print)0895-0563

Other

Other2014 Congress on Geo-Characterization and Modeling for Sustainability, Geo-Congress 2014
CountryUnited States
CityAtlanta, GA
Period2/23/142/26/14

ASJC Scopus subject areas

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

Fingerprint Dive into the research topics of 'Dynamic centrifuge testing of a temporary braced excavation in dry sand'. Together they form a unique fingerprint.

Cite this