Pile driving construction: Delmag diesel pile hammer drives sheet metal pile deeper into earth, following pile being driven by a vibratory pile driver. The pile hammer is supported by lead/guide to its right, which is supported by Link-Belt crane. The smoke is exhaust from ignition of diesel fuel, which ignites at bottom of piston fall, pushing the piston up again for the next cycle. Huron Parkway, Ann Arbor, Michigan, 2005.
From Pile and Pier Construction: piles, pier, hammer, vibratory driver, auger