Abstract
Abstract : The objective of CENSE 2 was to study the effects of burst position on ground shock, stress, airblast, and cratering in soil (clayey silt). Nine tests were conducted using 300-pound spherical cast TNT explosive charges. Burst positions ranged from an elevated (airburst, noncratering) charge position of - 10.8 feet to burial at a depth of +10.8 feet. Apparent craters were measured on all tests. Surface airblast was measured on Events 1 through 6, but not on the buried events (Events 7 through 9). Near-surface (1.5-foot depth) vertical and horizontal ground motions were measured on Events 1 through 6. Stresses and ground motions were measured directly beneath the explosion on Events 1 through 6. No near-surface motions, stresses, or airblast were measured on Events 7 through 9. Instead, radial of stress and ground motion measurements were made at burst depth on these buried events. Data are presented in the form of time histories and amplitude-distance plots.
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