There is a bridge that is being demolished near my office that is now my destination and entertainment on my daily lunchtime walks. I previously posted video of the demolition of a concrete column. The other day during my visit, a crane with a hanging vibratory hammer was driving steel sheet pilings into the riverbed to form a cofferdam. There was already a cofferdam around one of the bridge piers, which has now been demolished. I am assuming this new cofferdam will surround the next pier, so it can be removed. The before and after photos of the pilings being driven are below as well as video of it happening.
Driving pilings, before
Driving pilings, after
Interesting video. Question: Does the crane operator himself control the pile driving device, or is there someone on the ground doing that?
I don’t know the answer to that, but as far as I could tell, the crane operator was controlling everything. There were other workers at the site, including one helping to direct the crane operator onto the piling, but none of them appeared at least to be operating the driving device.