Geotextiles and Geomembranes Revision 2: 24 July 2015 Author: De, Morgante, Zimmie Page 1 of 62 1 Numerical and physical modeling of geofoam barriers as protection against 2 effects of surface blast on underground tunnels 3 4 Anirban De *1 , Alberto N. Morgante 2 , and Thomas F. Zimmie 3 5 6 1 Civil & Environmental Engineering Department, Manhattan College, Bronx, NY 7 10471, E-mail: anirban.de@manhattan.edu 8 2 Formerly, Civil & Environmental Engineering Department, Manhattan College, 9 Bronx, NY 10471, E-mail: anmorgante@gmail.com 10 3 Civil & Environmental Engineering Department, Rensselaer Polytechnic Institute, 11 Troy, NY 12180, E-mail: zimmit@rpi.edu 12 * - Corresponding author 13 14 15 ABSTRACT 16 17 An explosion on the ground surface may cause significant damage to an underground 18 structure, such as a tunnel or a pipeline. The extent of damage would depend on the 19 intensity of blast, the material and configuration of the structure, as well as the nature 20 and geometry of the intervening material. 21 22 © 2015. This manuscript version is made available under the Elsevier user license http://www.elsevier.com/open-access/userlicense/1.0/