Insufficient information, but at a guess: the displacement?
1600n
If the soil is so lose that it cant hold the building even with pile foundation. So, piled raft foundation is used which make the building to float like a boat. That obeys Archimedes' principle-it is buoyed up by the weight of the earth displaced in creating the foundation.
The different substances you use to move your raft
weight and length of steel bar ~6
The weight of an inflatable raft depends on its size and quality. Small rafts may weigh about 20 pounds while a large one could weigh 200 to 300 pounds.
You just beat it...
Calculate the length of steel you are going to use the building and muliply the length with unit weight of the steel.ex: 12 m 25mm steel weight is12 x 3.85 =46.2 kg3.85 kg/m is the unit weight of 25mm bar
just pour concrete on caison
The opposite of the noun raft could be "submersible" which would keep you under the water rather than above. Or possibly "ballast" (weight to keep you underwater).More arcane would be "pool" which is a water above a dry surface, while a raft is a dry place above a water surface.*The less frequent use of raft to mean a large unspecified number (e.g. a raft of problems) could have the antonyms few or countable or numerable.
The raft will help to avoid any settlement that would occur to strip the foundation. The mat is just placed there to avoid slipping.
Matt or Raft Foundation Combined Footings Pile Cap Foundations Isolated Foundations Continous Foundation
They raft.