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Inertial Forces from Earthquakes on a Hyperloop Pod

Heaton, Thomas H. (2017) Inertial Forces from Earthquakes on a Hyperloop Pod. Bulletin of the Seismological Society of America, 107 (5). pp. 2521-2524. ISSN 0037-1106. doi:10.1785/0120170054.

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High‐speed transit (1300  km/hr) using pods traveling in evacuated tubes has been proposed. This Short Note addresses how earthquake ground shaking is changed when it is experienced by a high‐speed pod that is confined to a track. In particular, earthquake motions can cause lateral deformations of the tube that cause centripetal forces in the pod. I discuss the nature of these forces for the cases of (1) a tube that crosses a fault offset, (2) a tube that is deformed by traveling waves in the Earth, and (3) a tube that resonates between fixed points (e.g., a simple bridge). I suggest several schemes to control the peak centripetal accelerations of the pod.

Item Type:Article
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Heaton, Thomas H.0000-0003-3363-2197
Additional Information:© 2018 Seismological Society of America. Manuscript received 17 February 2017; Published Online 25 September 2017. No data were used in this Short Note. The author is grateful to an anonymous reviewer for helpful comments and for careful review of the equations, including several important corrections.
Group:Seismological Laboratory
Issue or Number:5
Record Number:CaltechAUTHORS:20171101-161548774
Persistent URL:
Official Citation:Thomas H. Heaton; Inertial Forces from Earthquakes on a Hyperloop Pod. Bulletin of the Seismological Society of America ; 107 (5): 2521–2524. doi:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:82865
Deposited By: Tony Diaz
Deposited On:01 Nov 2017 23:30
Last Modified:15 Nov 2021 19:53

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