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  1. 30th October 2007, 04:04 PM #1
    antisense
    antisense is offline Member
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    Default retaining wall Q. How do you stop backfill during installation?

    G'day all,

    I'm planning to install a pillar and post concrete retaining wall system similar to the one here http://twinside.com.au/walls_fences_perth.htm.

    I am only retaining around 900mm, however I want to get around 500mm from the existing asbestos fence. What i don't get is how I'm going to stop all the earth falling away from the fence (and consequenctly the fence falling onto me!! ) when I go to dig the 900mm down + 1400mm footings during the installation.

    Are there any tips or tricks I could use to help me out?

    Thanks a bunch.

    Antisense ^_^
    antisense ^_^

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  2. 30th October 2007 04:04 PM # ADS
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  3. 30th October 2007, 04:20 PM #2
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    munruben
    munruben is offline GOLD MEMBER
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    I put up a few of my own retaining walls when I was in sydney and did one at home since I have been up in queensland. You shouldn't have any trouble with the earth crumbling away when you dig, I haven't found that a problem. The earth is pretty much compacted and tends to stay where it is but maybe in some soils it might be a different kettle of fish.

    You could brace the fencs to stop it from toppling on you if it is a very high fence but I have never had trouble with the earth falling to that extent. 500mm gives you a fair buffer.

    I am sure someone with more experience will be able to help you out on this.
    Good luck with the new wall, it looks good on the website.
    Last edited by munruben; 30th October 2007 at 04:21 PM. Reason: spelling mistake
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  4. 31st October 2007, 10:52 AM #3
    antisense
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    Thanks for the advice,

    I'll give it a crack. Hopefully it doesn't turn into a nightmare job

    Antisense ^_^
    antisense ^_^

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  5. 3rd November 2007, 05:06 PM #4
    Terrian
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    dig a hole about 400mm deep, if the sides dont fall in you should be fine for doing your wall, if the sides do fall in you are in for a spot of bother )
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