Retaining Wall Installation - Making the Foundation
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This is a do-it-yourself guide about How To Build a Retaining
Wall.
A Retaining Wall System begins with creating a proper
foundation for your wall.
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Retaining Wall Foundation
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Draw a string at the location of the front of the projected
wall.
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Mark the ground line with spray paint. |
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Move the string and dig a trench 24 inches or 60
cm wide, with 20 inches or 50 cm behind the string and 4 inches
or 10 cm in front.
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The excavation must be deep enough to hold the
foundation. |
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You’ll need a trench 6 inches or 15 cm deep.
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An additional 10% of the total height of the Wall has to be
under ground.
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Say you have a wall of 32 inches or 80 cm high, the depth of
its foundation would be 6 inches or 15 cm. Add 10% of the total
height which is 3 inches or 8 cm.
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So for a wall of 32 inches or 80 cm high the total depth of the
excavation would be 9 inches or 23 cm.
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Install the Geotextile as shown, in the back as well as at the
bottom of the trench in order to prevent contamination of the
foundation and the drainage system.
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Leave enough geotextile on the ground at the back of the wall to
fold over the clean stone once the backfilling is completed.
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Prepare a 6 inch or 15 cm foundation in two layers of 3 inches
or 7.5 cm, using 0-3/4 inch or 0-20mm stone and compact each
layer with a jumping jack or a vibrating plate.
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Continue our How To Build a Retaining Wall Guide - next section is
Installing the Retaining Wall. - Click
Here
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