Blast induced soil liquefaction Phenomena and evaluation

The general conditions necessary for soil liquefaction have been known for some time. Terzaghi was the first to describe the significance of liquefaction of loose, saturated sands subjected to unidirectional loading. Other amplified these considerations and introduced the concept that liquefaction may also occur as the result of several types of vibration, including earthquakes and explosions. Earthquake motions have received a great deal of attention by the research community (Seed and Idriss, 1967 ; Peck, 1979). However, comparatively very little attention has been given to liquefaction as a result of explosive loadings ( Charlie, 1977 ). Like earthquake induced liquefaction, its existence is site dependent and until recently escaped detection and concentrated study.