Archive for the Category ◊ Retaining Wall Ground Preparation ◊

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• Friday, May 07th, 2010

Surface Preparation

All surface grass and vegetation, you will need to removed from were your wall will be. You do not want to use this for backfill. You will need to start at the lowest point, you will neat to dig a base trench or ditch the length of your wall. Depending on the type of wall you are building, you will need to dig the trench to work with the type of the wall that you are building. Let’s say you are building a Gravity Wall; you will need to dig your trench 18” wide and about 7” deep. Will maybe you need to build a Reinforced Wall. To hold a much heaver load. This will be wider and deeper as well. You may go 24” wide, and you may dig as deep as 12”. You now need to level the area you are working with, now compact the .25 or .75 this will be the base rock you will use for the first level of the block you are using. A rule of thumb is 4” deep, for the Gravity Wall and with the Reinforced wall you will need about 6” Now it is very in portent that you level the length of your wall, you may need to adjust here and there to have a nice level wall to start working with.

To start the base start at the lowest elevation, Set your first block on top of the base you compacted and leveled, put your blocks close together, be shire each block is level. Be shire to fill the hollow cores of the blocks. And fill behind your blocks with stone. This will help drain the water. Use your hand tamper to compact the dirt and the drain field. Be shire to keep the blocks level. Now you are on your way to a good looking Retaining Wall.

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