Friday, August 22, 2008

Large Leggo wall...

I spelled "Lego" different to avoid litigation...
Allanblock has been good to us this year, so we have been good to them in return. This is a Europa wall that we are constructing in Discovery Ridge. There are 4 different block shapes, with 3 separate sets of stairs, rising a visible total of 35 inches. It is quite a curvy wall.
It is the main hard scape on this project, that splits the yard completely in 2 distinct sections there fore we have utilized all the structural additions available to us. We have built a 10" thick base supported by geotextile between the clay layer and the new crush base. There is a full 8" high base of "dover" blocks that is fully buried to eliminate any erosion under the wall. We have installed 3' wide Geogrid above the base layer and above the 16" mid layer. Each 8" high layer of brick we place has been backfilled and packed with "wall rock" which allows water to drain through the ground behind the wall into the socked weeping tile and out the positive drain in the front of the wall. The wall rock also creates an interlock where we have utilized the Geogrid, so the wall now becomes 3' thick instead of 1' thick, giving an incredible amount of strength and durability.

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