rock anchors

[joensie]

I work in a town that has a lot of limestone rock and some granite. Sometimes we need to set poles and anchors in riprap or bedrock. I use a 4 inch double pisa anchor in the riprap and expansion anchors in the bedrock.
I was just wondering how everyone else installs anchors in rock?

[Bipeflier]

Those are about the only 2 options http://www.abchance.com/resources/li...ia/049401B.pdf unless you want to go to grouted anchoring.