Regarding the matter of the anchor of Route 6C breaking about a week ago at Railay Beach.
I've already repaired it. But the question is, how did it break like that? I sent the broken bolt back to those involved. Hopefully there'll be an answer soon.
But as far as I can see with my eyes, The driller didn't cut a groove in the stone to support the weight of the bolt ring, he just drilled a hole and it didn't seem like it was fully inserted into the stone. Therefore, the load force of the weight falls on the bolt stem.