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cantilever retaining wall

cantilever retaining wall

cantilever retaining wall

(OP)
Do a cantilever retaining wall need to be below the frost depth at the toe?

RE: cantilever retaining wall

We usually place the bottom of the cantilever retaining wall footing below frost.

RE: cantilever retaining wall

Same here... and we sometimes use insulation to minimise the excavation at the toe... Typical frost penetration in these environs is 6'...

Dik

RE: cantilever retaining wall

(OP)
How much of insulation is needed to decrease 3'-6" frost depth to 2'-0" i.e 1' of cover over toe and 12" thick slab.

RE: cantilever retaining wall

A couple of inches and it should extend a couple of feet beyond the toe... Check with Dow-Corning... they have some info on the use of this.

Dik

RE: cantilever retaining wall

(OP)
Thanks to JAE, dik for your help.

RE: cantilever retaining wall

I would also check out ASCE-32 which I thinks covers frost protection of shallow foundations.

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