photo sharing and upload picture albums photo forums search pictures popular photos photography help login
David Fitz-Henry | all galleries >> slato >> observatory > Observatory Footings
previous | next
01-OCT-2006 David Fitz-Henry

Observatory Footings

This view shows the setting of the central piers along the bearers, after the end piers have already been set. You can see a small wooden stud used to prevent the bearer sagging under the weight of itself and 2 uni-piers. The piers were adjusted level vertically as the concrete was poured in, and then the circular formwork was dropped and used to create a raised cylindrical concrete pier around the base of the metal uni-pier.

Canon PowerShot A70
1/640s f/2.8 at 5.4mm full exif

other sizes: small medium large auto
share