I am currently exploring the possibility of using vibro hammer for the installation end-bearing steel H-piles due to environmental concern. Does anyone has any experience using vibro hammer for the installation of end-bearing piles? If yes, what are the pile performance (capacity and load-settlement)? What are the measures taken to ensure proper seating? Many thanks in advance.
I might add that if there are dense layers above the rock then the pile is likely to refuse in these layers and not reach the rock. Vibratory driving is highly sensitive to end bearing. Dynamic pile testing can easily verify capacity as suggested by Julian Seidel. Garland Likins, Pile Dynamics