Response of Buried Structure Walls to Earth Penetrating Conventional Weapons

by James L. Drake, Applied Research Associates Inc, Vicksburg, MS, USA,
Michael A. Rochefort, Applied Research Associates Inc, Vicksburg, MS, USA,

Document Type: Proceeding Paper

Part of: Dynamics of Structures


A structural analysis method is presented which accurately models the interface condition between a buried structure and the surrounding soil. During the loading phase, continuity of both stress and displacement between the soil and structure is maintained. The resulting equation of motion for this system resembles that of a single degree of freedom system with damping. It is shown that the interface stress is highly dependent upon the inertial effects and the deflection of the structural section. A comparison of theoretical results with buried wall experiments is excellent. Calculated wall deflections were within plus or minus 30 percent of those observed in tests. Interface stresses were accurately predicted as well. The theory is easily solved for any structure and incident loading by analytical methods or numerically on desktop or programmable calculators.

Subject Headings: Underground structures | Structural analysis | Soil structures | Walls | Structural response | Soil analysis | Dynamic structural analysis | Soil-structure interaction

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