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Shock and Vibration
Volume 2016, Article ID 6719271, 14 pages
http://dx.doi.org/10.1155/2016/6719271
Research Article

Geotechnical Aspects of Explosive Compaction

1Civil and Environmental Engineering Department, Amirkabir University of Technology, Tehran, Iran
2Faculty of Art and Architecture, Mazandaran University, Babolsar, Iran

Received 3 March 2016; Revised 2 July 2016; Accepted 21 August 2016

Academic Editor: Carlo Trigona

Copyright © 2016 Mahdi Shakeran et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Explosive Compaction (EC) is the ground modification technique whereby the energy released from setting off explosives in subsoil inducing artificial earthquake effects, which compact the soil layers. The efficiency of EC predominantly depends on the soil profile, grain size distribution, initial status, and the intensity of energy applied to the soil. In this paper, in order to investigate the geotechnical aspects, which play an important role in performance of EC, a database has been compiled from thirteen-field tests or construction sites around the world, where EC has been successfully applied for modifying soil. This research focuses on evaluation of grain size distribution and initial stability status of deposits besides changes of soil penetration resistance due to EC. Results indicated suitable EC performance for unstable and liquefiable deposits having particle sizes ranging from gravel to silty sand with less than 40% silt content and less than 10% clay content. However, EC is most effective in fine-to-medium sands with a fine content less than 5% and hydraulically deposited with initial relative density ranging from 30% to 60%. Moreover, it has been observed that EC can be an effective method to improve the density, stability, and resistance of the target soils.