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tall retaining wall |
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| message from Nick Brooks on 12 May 2004 |
I need to build a tall ( about 1.5m) retaining wall. The soil is very
stony and compacted and the upper surfaces used only by foot traffic.
I'm planning a 500mm wide trench for foundations. Then a course of
concrete blocks on their sides to form a wall 200mmm thick.
This will be faced by a dry stone wall also 200mm thick possibly with
the backs of the stones set in mortar.
My questions are:-
Is this generally a sound idea?
How deep should the foundations be?
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| BigWallop replied to Nick Brooks on 12 May 2004 |
It depends on how much weight you want to be able to hold back and the angle of any
slope that is pushing against the wall.
If the wall is to hold back a slope at the bottom of a hill, then you may need to
allow for drainage holes along the length and the height of the brickwork so that the
whole thing is not washed away in torrent of built up dam water.
More details needed on this to give any kind of suitable suggestions.
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| Nick Brooks replied to BigWallop on 12 May 2004 |
The ground above the wall slopes slightly down but has been dug out to
provide a seating area at the back of the house. I was planning to put
drainage holes in the wall and am also planning to dig a soakaway at the
lower level.
At the moment the ground has been dug and naturally forms a slope of
about 15 degrees to the vertical
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Archived message: tall retaining wall (UK D-I-Y Home Repairs)
