Usa "pile driver" in una frase

1. Each time he tries to inhale she strike the same spot, again and again like a horizontal, heel pile driver

2. Observe the presence of the pile driver

3. Steam shovels and electric shovels clawed at piles of loose rock; bulldozers pushed earth and rocks from one place to another; Caterpillar diesel tractors crawled back and forth, gouging out terraces; enormous Mack AP Super-Duty dump trucks labored up rough roads leading out of the canyon, carrying boulders the size of automobiles; front loaders scooped up more boulders and dropped them in side-dump trucks that carried them to conveyors; tall cranes swung steel sheets out over the water, where pile drivers emitting white puffs of steam sat on barges, pounding them into the riverbed