Seismic Analyses of the Bay Tunnel
Abstract
The Bay Tunnel is a major water supply facility to be constructed between the San Andreas Fault and the Hayward Fault in the San Francisco Bay Area. The design earthquake for the Bay Tunnel has a return period of 1,000 years and a horizontal peak ground acceleration of approximately 0.6g. A full dynamic analysis of the Bay Tunnel, considering the soil-structure interactions, was performed to evaluate the performance of the tunnel final lining system during the design earthquake. This paper discusses the methods employed to perform the dynamic analysis and the results obtained. A brief comparison of the results from the dynamic analysis with those from the closed-form solutions and numerical racking analysis is also presented.
2008
Geotechnical Earthquake Engineering and Soil Dynamics (GEESD) Conference Proceedings
Yiming Sun
Jacobs Associates
Steve Klein
Jacobs Associates
John Caulfield
Jacobs Associates
Victor Romero
Jacobs Associates
Johanna Wong
San Francisco Public Utilities Commission
