Many thanks for your response , it is my first thread , and it is great to get that response in that way [bigsmile]
I am located in Saudi Arabia , and they are using here American and British standards in addition to their local standards .
Ron , I got the same for the purpose of that...
A big duct supported using isolated footings of (4 x 9 m) size, normal sand under the footing ; A gap noticed in that duct at a support and they discovered a foundation settlement , the consultant made a test using water trucks submerging the footing area, and 70 mm settlement recorded after...