Dowel into rock for sliding resistance
Dowel into rock for sliding resistance
(OP)
If placing a dowel into rock for sliding resistance, (basically shear) do you have them just grout in, or epoxy, or just hammer the heck of of them into a tight hole?






RE: Dowel into rock for sliding resistance
RE: Dowel into rock for sliding resistance
https://www.google.com/search?q=rock+anchors&i...
BA
RE: Dowel into rock for sliding resistance
I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it.
RE: Dowel into rock for sliding resistance
RE: Dowel into rock for sliding resistance
BA
RE: Dowel into rock for sliding resistance
Talk with a good geotechnical engineer. There's an actual methodology to designing the rock anchors. You have to take into account both local and global failure modes. Tiebacks to resist sliding are typically angled back so that they primarily act in tension. I guess you'd get some dowel action from a vertical bar, but it would probably be less reliable than a bar acting in tension. I think the geotechs would frown on it. If that's your concept, why not just use a shear key like azcats said?
RE: Dowel into rock for sliding resistance
They are not tiebacks in my mind, just a dowel to resist the balance of sliding resistance I need to make it work. No tension. A #5 bar, drilled and grouted about 12" into the rock.
I cant get them to give me a capacity of the the rock, and they dont want to chip away at the rock to provide a keyway. Its a contractor trying to do it as cheap as possible.
RE: Dowel into rock for sliding resistance
you might find more information here:
http://www.williamsform.com/Ground_Anchors/ground_...
suggest spin lock or resin anchors
RE: Dowel into rock for sliding resistance