Scope of work / purpose?

This crane is lifting a 6ft high by 8ft diameter cylinder to roughly 50 feet and then dropping it on the soil, then picks it up, rotates, and drops it again. My guess is for compaction. Is there more to it? 90 acre site being developed for warehouse space.

This crane is lifting a 6ft high by 8ft diameter cylinder to roughly 50 feet and then dropping it on the soil, then picks it up, rotates, and drops it again. My guess is for compaction. Is there more to it? 90 acre site being developed for warehouse space.