[ghsc-seminars] =?gb2312?B?R0hTQyBTZW1pbmFyoapCZW4gTWFzb24sIFVTR1MsIFR1ZXNkYXksIEp1bmUg?= =?gb2312?B?MTR0aCwgMjAyMiwgMTCoQzExYW0gTVQ=?=

[Boyd, Oliver S]

Soil-fluid-structure interaction during earthquakes, tsunamis, and multi-hazards

Speaker: Ben Mason
               Research Civil Engineer
               USGS, Golden, CO
               Oregon State University
Location: online/virtual only
Date/Time: Tuesday, June 14th, 2022, 10¨C11am MT

Abstract: Earthquake-tsunami multi-hazards affect coastal buildings and infrastructure via strong shaking, large hydrodynamic loading, and ground failure (e.g., liquefaction, enhanced scouring). I will talk about my work on this topic for the last ten years, with a particular focus on earthquake and tsunami-induced liquefaction. The work includes analytical formulations, numerical modeling via finite element and finite difference methods, physical modeling using a geotechnical centrifuge, and post-disaster reconnaissance trips to Japan (2011) and Indonesia (2018). I will expound upon how I see the work fitting into existing USGS products. Finally, I will discuss future ideas and collaborations. I have listed the primary references for my talk below.

[cid:d7471ce7-50b9-4bd7-b1e1-4a35c4a2b500][cid:48e0624c-0a96-4c8a-ac60-2f6878fb0440]
Fig. 1. Earthquake and tsunami damage to the port in Onagawa, Japan following the 2011 Great East Japan Earthquake and Tsunami (photos from Yeh & Mason 2014).

Carey, T. J., Mason, H. B., Barbosa, A. R., & Scott, M. H. (2019). Multihazard earthquake and tsunami effects on soil¨Cfoundation¨Cbridge systems. Journal of Bridge Engineering, 24(4), 04019004.

Exton, M., Harry, S., Kutter, B., Mason, H. B., & Yeh, H. (2019). Simulating tsunami inundation and soil response in a large centrifuge. Scientific Reports, 9(1), 1-12.

Qiu, Y., & Mason, H. B. (2019). Pore Water Pressure Response of Fully Saturated Soil Beds during Earthquake¨CTsunami Multi©\Hazards. Bulletin of the Seismological Society of America, 109(5), 1785-1796.

Yeh, H., & Mason, H. B. (2014). Sediment response to tsunami loading: mechanisms and estimates. Geotechnique, 64(2), 131-143.

Bio: Ben Mason is a research civil engineer at the USGS¡¯s Geologic Hazards Science Center (on an IPA contract) and an associate professor in the college of engineering at Oregon State University.


GHSC Seminar Committee: Oliver Boyd <olboyd at usgs.gov>, Josh Rigler <erigler at usgs.gov>, Francis Rengers <frengers at usgs.gov>


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