Project Details:
Owner:City of Norfolk, Department of Utilities
General Contractor: ASI Constructors, Inc.
Duration of Work: 4 weeks
Subsurface Conditions: Sand fill
Approximate Key Quantities: Vibrocompaction - 254 Points
Project Overview:
Ground Conditions:
Solution:
Vibrocompaction is a ground improvement technique that involves penetration of loose foundation soils utilizing an electrically powered Vibro probe. The soil densification that occurs, improves bearing capacity and reduces potential for liquefaction and excessive settlements.
US Wick Drain’s innovative proposal of Vibrocompaction was a good fit for this project because it eliminated the need for dewatering. The probe was able to penetrate the placed fill down to the depth of the existing downstream mudline without the removal of water.
There were a total of 254 compaction points advanced to maximum depths of 16 feet.
