Why would an established highway contractor with a history of using a crane with diesel hammer for pile driving be working at the Philadelphia Navy Yard with a sophisticated pile driving rig?

pile-driving system and Pileco diesel hammer. Back at Measutronics headquarters, engineers created a mock-up of the proposed system for placement of the GPS receivers and antennas, angle sensors ...

Crews will perform quieter work overnight as much as possible, but pile driving will ... using vibratory hammers for cofferdams for piers five and six. Crews will use diesel hammers during a ...

“But driving piles with a telescoping crawler ... 40 H-beam piles into the creek bed using an 8.5-ton diesel pile hammer. The height was 93 ft. for each pile. The crane also picked and set ...