Simplified Cone Penetration Test Performance-Based Assessment of Liquefaction and Effects: Phase 2, Tasks 5–10

Details

• Creators:
  Franke, Kevin W ; He, Jingwen ; Blonquist, Jenny L
• Corporate Creators:
  Brigham Young University. Department of Civil and Environmental Engineering
• Corporate Contributors:
  Utah Department of Transportation ; United States. Department of Transportation. Federal Highway Administration
• Subject/TRT Terms:
  Bridges Cone Penetrometers Dislocation (Geology) Earthquake Resistant Design Evaluation Hazards Lateral Spread Displacements Lateral Supports Liquefaction Penetration Resistance Performance-based Engineering Performance Tests Post-Liquefaction Settlements Retaining Walls Settlement (Structures) Simplified Models

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• Publication/ Report Number:
  UT-21.21
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Edition:
  Final report, July 2017 – August 2021
• Corporate Publisher:
  Utah Department of Transportation
• Abstract:
  The purpose of the research presented here is to provide the benefit of the full performance-based probabilistic earthquake hazard analysis using Cone Penetration Test (CPT) data without requiring special software, training, and experience. To do this, simplified models of liquefaction triggering, post-liquefaction settlement, and lateral spread displacement that approximate the results of the full probabilistic analysis were developed. The full project scope consisted of two phases: Phase 1) the development of a research tool to run full performance-based probabilistic calculations (Tasks 1 through 4), and Phase 2) the development of simplified performance-based methods (Tasks 5 through 10). This final report volume addresses the results of Phase 2 of the pooled fund study TPF-5(338) research contract. The goal of these simplified methods is to be user-friendly, requiring only simple calculations and a liquefaction parameter map. The simplified procedures are based on the Boulanger and Idriss (2014) probabilistic liquefaction triggering model, the Ku et al. (2012) (probabilistic version of Robertson and Wride (2009)) for liquefaction triggering; Juang et al. (2013) for post-liquefaction settlements; and lastly, Zhang et al (2004) for lateral spread displacement. This report details the development of the liquefaction parameter maps and provides a comparison of the simplified method, the pseudo-probabilistic method, and the deterministic method. To assist in implementing the simplified procedures, a tool was created to perform the simplified calculations, called CPTLiq. CPTLiq is available in spreadsheet format with a user’s manual and provides an easily implemented procedure
• Format:
  PDF
• Funding:
  16-9826
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:c987f74aa1eff650690cd43f95f28d98a422611eb05202a9b01fd54134d77076
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/60868/dot_60868_DS1.pdf
• File Type:
  [PDF - 41.83 MB ]