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re: Watering the lawn/foundation.
Posted on 6/27/16 at 3:06 pm to Zappas Stache
Posted on 6/27/16 at 3:06 pm to Zappas Stache
quote:
Piers are drilled until they hit bedrock. So they are not affected by shrink swell of the clay.
We don't have bedrock down here. You just have to drive deep enough until you hit a firm layer, however the friction of the soil against the pier contributes a good bit to a pier's load capacity. I would think it's possible in a severe drought to have the soil pull away from a decent amount of the top of the pier as it shrinks which will reduce your skin friction. However, skin friction is either ignored or anticipated to have little impact in a design on top of the fact that there is a safety factor of at least 2.
This post was edited on 6/27/16 at 3:07 pm
Posted on 6/27/16 at 4:28 pm to junkfunky
quote:
We don't have bedrock down here. You just have to drive deep enough until you hit a firm layer,
I thought y'all just built on pontoons down there.
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