Blast induced ground shock effects on pile foundations
Jayasinghe, Laddu Bhagya
Thambiratnam, David P.
Perera, Nimal J.
Jayasooriya, J. H. A. R.
Date of Issue2013
School of Civil and Environmental Engineering
Due to increased number of terrorist attacks in recent years, loads induced by explosions need to be incorporated in building designs. For safer performance of a structure, its foundation should have sufficient strength and stability. Therefore, prior to any reconstruction or rehabilitation of a building subjected to blast, it is important to examine adverse effects on the foundation caused by blast induced ground shocks. This paper evaluates the effects of a buried explosion on a pile foundation. It treats the dynamic response of the pile in saturated sand, using explicit dynamic nonlinear finite element software LS-DYNA. The blast induced wave propagation in the soil and the horizontal deformation of pile are presented and the results are discussed. Further, a parametric study is carried out to evaluate the effect of varying the explosive shape on the pile response. This information can be used to evaluate the vulnerability of piled foundations to credible blast events as well as develop guidance for their design.
DRNTU::Engineering::Civil engineering::Structures and design
World academy of science, engineering and technology
© 2013 World Academy of Science, Engineering and Technology. This paper was published in World Academy of Science, Engineering and Technology and is made available as an electronic reprint (preprint) with permission of World Academy of Science, Engineering and Technology. The paper can be found at the following official URL: [http://www.waset.org/Publications/blast-induced-ground-shock-effects-on-pilefoundations/9912]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.