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Message
re: Watering the lawn/foundation.
Posted on 6/27/16 at 2:56 pm to SirSaintly
Posted on 6/27/16 at 2:56 pm to SirSaintly
quote:
I have a pier & beam too and people were always telling me i still needed to water the foundation
Piers are drilled until they hit bedrock. So they are not affected by shrink swell of the clay.
1
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
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