dear i think the best thing to do is to make a test for the soil u r building on and by that u will have the best result about the depth u need to make ur foundations and the type of it and also the way to make to work go on and it will not cost u much
hi dear im eng : ahmed el sharkawi from egypt and i live in kuwait and im 25 years old , well i think that what u have done is ok and it is the best plus i think it is expensive , but i like to say some notes
1- the tie beam should be well reiforced
2- the cage sholud be not directly connected...
