Blast induced ground shock effects on pile foundations

Jayasinghe, Laddu Bhagya, Thambiratnam, David P., Perera, Nimal, & Jayasooriya, Ruwan (2013) Blast induced ground shock effects on pile foundations. World Academy of Science, Engineering and Technology, 76, pp. 176-180.

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Abstract

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.

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ID Code: 62511
Item Type: Journal Article
Refereed: Yes
Keywords: Underground explosion, numerical simulation, pile foundation, saturated soil
ISSN: 2010-376X
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CIVIL ENGINEERING (090500) > Structural Engineering (090506)
Divisions: Current > Schools > School of Civil Engineering & Built Environment
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2013 [please consult the author]
Deposited On: 15 Sep 2013 22:45
Last Modified: 24 Jul 2014 06:06

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