Structural · A-K99XX

Typical Aggregate Pier Foundation Detail

Elements

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An aggregate pier foundation detail shows a thirty-inch diameter compacted stone column supporting a concrete footing above. The installation depth and final design length vary based on geotechnical requirements, incorporating a sacrificial length above the working elevation. Aggregate material conforms to ASTM C33 number fifty-seven, ASTM C33 number sixty-seven, ASTM D1241 Type I Grade B, or similar approved standards. The final top of the aggregate pier interfaces directly with the underside of the structural footing at the specified working elevation.

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