About this project
In 2010, Liesfeld completed the Joint Use Intelligence Analysis Facility (JUIAF) located in Charlottesville, Virginia. The thirty acre site consisted of a 180,000 SQFT data center, two large parking lots, a roundabout, and a large earthen dam for the client, the U.S. Army Corps of Engineers. The project located in the hills north of Charlotteville had a total of 150,000 cubic yards of earthen material and 62,000 cubic yards of granite rock moved.
Rock Excavation
JUIAF was a special project for the fact that blasting was prohibited due to the close proximity of buildings. At first, Liesfeld used traditional methods of hydraulic ramming rock with “hoe-rams”. This process was extremely slow due to the hardness of the rock and began to impact the schedule. Liesfeld then brought in our internal fleet of rock saws mounted on large excavators. The result was dramatically increased production that was a driving force into bringing the project in on schedule. The rock was crushed on site with mobile crushers and placed as structural fill.
Rock Specification
Type of Rock: Granite
Unconfined Compressive Strength (PSI): 19,500
Rock Background: Compared to the Lynchburg Formation (3,975 PSI) and the Petersburg Formation (9,653 PSI) the rock encountered on JUIAF is one of the hardest rocks in the state of Virginia.
Rock Excavated: 62,000 CY