Showing posts with label windturbine. Show all posts
Showing posts with label windturbine. Show all posts

Tuesday, July 3, 2007

Rebar and foundation forms



Here are the 5/8 inch rebar, cut to length to fit 3 inches away from the top and bottom of the tower foundation. This is one of the two rebar mesh that is 78 inchs square with 7 inch intervals between each bar. The top forms are constucted of 2x8's to make the top level at 4 feet in depth. The template will be set later, but here it is placed to give us an idea of where the tower will sit in the yard and where the deadman and gin pole will fall on the back side of the foundation.

Digging for the water



For the wind turbine project, first I dug the 4 1/2 foot hole to monitor the water table. I dug it 3 foot wide just in case we could have gone down 10 ft to use a pier (column) foundation base. I had to cut a lot of tree root to get there. Water started to pool at 4 1/2 feet so we decided that a mat (cube) foundation would be better given our shallow water table.