Dear colleagues
We are driving some steel piles in the sea shore. the hammer we use is Delmag 33. the lengh of each individual pile is 20 meters with 32 inches Diameter. the number of impact for penetrating of pile for each 30 cm is more than 100 for some Depthes.
I want to know about stop criteria of pile driving. When we should stop driving to avoid the destroying the piles? Unfortunately We can not provide a heavier Hammer. I will appreciate any useful information about this phenomenon.
Regards
Jedari
|