SEISMIC VULNERABILITY OF UNDERGROUND STRUCTURES: ANALYTICAL DESIGN METHOD FOR PARALLEL TUNNELS OF NON-CIRCULAR CROSS SECTION SHAPE

References: 15th International Multidisciplinary Scientific GeoConference SGEM 2015, www.sgem.org, SGEM2015 Conference Proceedings, ISBN 978-619-7105-33-9 / ISSN 1314-2704, June 18-24, 2015, Book1 Vol. 3, 983-990 pp

ABSTRACT
A new design method for parallel underground structures subjected to the action of earthquakes is proposed. Analytical solution of pseudo-static elasticity theory problem for a half-plane weakened by supported openings gives an opportunity to take in to account influence of Earth surface and makes the method suitable for shallow structures design. The results of the method application for vulnerability estimation of underground structures are given.

Keywords: seismic action, underground structures, design.