Hi all - I've been trying to find a reference online about the breakout/pull out strength of anchors in rock and have yet to come up with something useful - so hoping someone can help. I'm working on a piling project in the Florida Keys with very shallow limestone bedrock. (I've yet to receive the geotech report - am structural). The contractor is suggesting to use pin-pile/augercast combo, sch 40 tube driven into the bedrock, and have concrete poured around. With this pile cantilevering off the bottom, my withdrawal load on the tube is ~44k, which I do not think will be matched by the friction between the limestone and pipe (maybe someone can enlighten me here). My thought is to set the vertical reinforcing of the pile in grout in the bedrock - naturally need to know how deep. Thanks in advance.
Red Flag Submitted
Thank you for helping keep Eng-Tips Forums free from inappropriate posts. The Eng-Tips staff will check this out and take appropriate action.
Reply To This Thread
Posting in the Eng-Tips forums is a member-only feature.
Today, the pace of innovation in the manufacturing industry is faster than ever before, but at the same time engineers are under increased pressure to get concepts to market quickly. Development teams must make fast and accurate decisions during the conceptual stage of design.