First, 10 to 12 blows per inch is really outlandish even though the criteria has been around quite some time. One is driving a stake with a tack hammer at that condition. The hammer is being damaged, the pilebuck foreman rightly thinks you are crazy, and the inefficiency is high. Forget it.
I...
Why would you want to batter these shorts? Prolly can get adequate lateral capacity with plumbs with fixity at cap and pinned connection at rock.
An array of fairly heavy tipped H piles ought work ok for what is prolly a rather smallish bridge.
Short stiff tip bearing batter piles under...
