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Re: snow load surcharge[Subject Prev][Subject Next][Thread Prev][Thread Next]
- To: seaoc(--nospam--at)seaoc.org
- Subject: Re: snow load surcharge
- From: Stan Johnson <hawneng(--nospam--at)wac.com>
- Date: Wed, 01 Oct 1997 18:10:31 -0700
croser(--nospam--at)S6.hninc.com wrote: > I have never included snow load as a surcharge on retaining walls for the > reason that snow will only accumulate on the ground when it is frozen (as > you've observed) and when the ground is frozen, the equivalent fluid > pressure should be approaching zero, at least for the soil above frost line > which is probably 3 feet which is equivalent to 300 to 360 psf of surcharge, > depending on your soil density. Snow can stick and accumulate long before frost gets down to 3' below soil. Stan Johnson, PE, Under favorable weather conditions, snow can also sublime!
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