Piling machine (model 1)
Heavy labour without a bang

 
Piles for a foundation are fabricated on site by a specialized machine on tracks by drilling long holes vertically into the soil and injecting ready-made concrete therein. Various lengths and diameters of drills, in the form of Archimedes' screws, can be mounted for the required depth and strength (photo 3).

  
 
 
  
 
 
  
 
 
  
For close-ups of this machine see Real Estate 6 (index Photos 2016-1) and Real Estate 17 (index Photos 2017-1), or via link Series in the top of this page by searching 'Real Estate'.
For a slightly different model see also Piling machine (model 2), Photos 2021-1.

First and last photos were posted earlier but re-edited for this page.