Fill Settlement Despite Vertical Sand Drains

by George F. Sowers,

Serial Information: Journal of the Soil Mechanics and Foundations Division, 1964, Vol. 90, Issue 5, Pg. 289-302

Document Type: Journal Paper

Abstract: A marsh deposit, stabilized by vertical sand drains and a surcharge loading, settled 4 ft after completion of the stabilization, preconsolidation period. Soil borings and laboratory tests made 4 yr after construction show that 6 ft of primary consolidation should have been anticipated, of which only 1.5 ft would occur during the specified 3-month stabilization period. The remainder would be virtually complete approximately 10 yr after construction, but some secondary compression would continue indefinitely. The predicted settlement 11 yr after construction was 7 ft, including 1 ft of secondary compression; this total was within 10% of the measured value.

Subject Headings: Consolidated soils | Soil settlement | Construction management | Soil stabilization | Drainage | Compression | Vertical loads | Load factors |

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