Investigating the Behavior of Underground Structures in the Event of an Earthquake

Authors: Davoud Beheshtizadeh, Farzin Malekpour

Abstract:

The progress of technology and producing new machinery have made a big change in excavation operations and construction of underground structures. The limitations of space and some other economic, politic and military considerations gained the attention of most developed and developing countries towards the construction of these structures for mine, military, and development objectives. Underground highways, tunnels, subways, oil reservoir resources, fuels, nuclear wastes burying reservoir and underground stores are increasingly developing and being used in these countries. The existence and habitability of the cities depend on these underground installations or in other words these vital arteries. Stopping the flow of water, gas leakage and explosion, collapsing of sewage paths, etc., resulting from the earthquake are among the factors that can severely harm the environment and increase the casualty. Lack of sewage network and complete stoppage of the flow of water in Bam (Iran) is a good example of this kind. In this paper, we investigate the effect of wave orientation on structures and deformation of them and the effect of faulting on underground structures, and then, we study resistance of reinforced concrete against earthquake, simulate two different samples, analyze the result and point out the importance of paying attention to underground installations.

Keywords: Earthquake, underground structures, underground installations.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1315531

References:

[1] Vojoodi, Mehdi, The Effects of Earthquake on Underground Structures With A Special View on Tunnels & Metros,8th international congress in earthquake and lightweight construction, Tehran, May 2016.
[2] Youglu Li & Xinagdong XI, Earthquake damage and countermeasure of industrial lifeline and equipment, Proceeding of the China-U.S. Milleniume Symposium of earthquake Engineering, Beijing, China, 8-11 Nov 2017.
[3] S Y. M. A. Hashash seismic Behavior of Underground Structures and Site Response, Proceeding of the China-U.S. Milleniume Symposium of earthquake Engineering, Beijing, China,8-11 Nov 2000.
[4] Kiezo htomo, Toshio Shiero, Tadashi Kawai, Experimental Aspect of laminar shear sand box excitation test with embedded RC model, Journal of soil Dynamic and Earthquake Engineering, vol. ll, No. 7, pp.411-426, 2016.
[5] ACI 318, 1999. Building Code Requirements for Reinforced Concrete, American Concrete Institute.
[6] Youssef, M. A. Hashash, Jeffrey, J. Hook.; Birger Schmidt.; John I-chiang Yao, 2011, "Seismic Design and Analysis of Underground Structures", Tunneling and Underground Space Technology, Department of Civil and Environmental Engineering, University of Illinois at Urbana-Champaing, San Francisco, Ca, USA.