|
|
|
|
|
|
|
Louisa Generation Project
Old Dominion Electric Cooperative
Gordonsville, Virginia
|
Back to Project List
|
|
|
| |
|
Drilled Micropiles |
|
Micropiles are installed to support five gas powered generation units to supply supplemental energy
for central Virginia.
|
|
|
Project Overview: |
|
Layne was contracted for the installation of 426, 8-inch diameter micropiles to support five gas powered
generation units. Micropiles were chosen as the foundation support because of the Karst nature of the
underlying bedrock, therefore, making the drilling conditions very difficult. Time was a critical issue
due to the demanding schedule of the owner. Layne completed the installation of the 426 piles in less than
2 months with 3 high production drilling machines, one of which having a single stroke length of 65 feet.
Three drilling crews, one installation crew and one grouting crew worked a single shift schedule, 5 days
per week.
The drilled micropiles were installed to an average depth of 55 feet . Many piles, however, exceeded a
depth of 80 feet since a bond in solid bedrock was required and the depth to that solid rock was highly
variable. The total installed footage was 24,363 linear feet. Design load for the piles was 150-kips
compression, 20-kips tension and 10-kips lateral.
|
|
|
Value of Work Performed: |
|
$1,300,000 |
|
Project Duration: |
|
3 months |
|
Project Completion Date: |
|
September 2002 |
|
Project Reference: |
General Contractor:
Kamtech, Inc.
Richard Keil
(770) 976-9316
|
|
|
|
|
|
