I'm planning to build a wooden deck near a river, problem is that the entire ground is solid rock & its sloped too ( 15 degrees approx). Not sure how to attach my foundation/posts on top of solid rock.
Deck size approx 15' x 25'. Ground level. May tie a boat to it in the future.
Possible ideas:
Rent/buy a rotory SDS hammer drill, drill 1 1/2" hole, about 12" deep, insert 1" diameter stainless steel bolt, (maybe 8” long) then secure bolt in hole with concrete or epoxy. Attach a Simpson 4x4 connector to the bolt & then attach my beam/post to it. With the ground being rock, its unevenness concerns me with this approach, ie... the Simpson adapter would probably not sit flat on the rock.
Or…
Rent/buy a rotory SDS hammer drill, drill a series of 1 1/2" holes, in close proximity, about 12" deep, then use another SDS bit to break the away the rock. Fill hole with cement. Rinse & Repeat for each post.
I've never worked with an SDS hammer drill nor have I ever drilled rock. Can the above methods cause the rock to split/fracture, in return making my foundation weaker??
I'm out of ideas. Any suggestions, info, or links are greatly appreciated.
Deck size approx 15' x 25'. Ground level. May tie a boat to it in the future.
Possible ideas:
Rent/buy a rotory SDS hammer drill, drill 1 1/2" hole, about 12" deep, insert 1" diameter stainless steel bolt, (maybe 8” long) then secure bolt in hole with concrete or epoxy. Attach a Simpson 4x4 connector to the bolt & then attach my beam/post to it. With the ground being rock, its unevenness concerns me with this approach, ie... the Simpson adapter would probably not sit flat on the rock.
Or…
Rent/buy a rotory SDS hammer drill, drill a series of 1 1/2" holes, in close proximity, about 12" deep, then use another SDS bit to break the away the rock. Fill hole with cement. Rinse & Repeat for each post.
I've never worked with an SDS hammer drill nor have I ever drilled rock. Can the above methods cause the rock to split/fracture, in return making my foundation weaker??
I'm out of ideas. Any suggestions, info, or links are greatly appreciated.