In this type of Mat Foundation, Raft is supported by piles in soil. Read Also: What is Shallow Foundation? Piled This type of Mat foundation is used where the soil settlement is uneven. The cellular raft is usually rigid, and so they are most suitable for the ground which is likely to settle unevenly, or where a very heavy load is anticipated. This type of Mat foundation comes with two concrete slabs, which lock together with the ground beam. The reinforcement of the column is sited on the top of the reinforced ground beam, and this provides necessary load-bearing capacity. This type of raft commonly used in a building, which involves column loads that are not evenly distributed over the footprint of the entire building. Slip Plan Rafts Comes with a preliminary layer of sand, which is laid over the little large surface area then the required raft foundation, Where the gap around the raft filled with the compressible filling material. The stone blanket and Raft foundation work together to provide even load support, despite an area of weakness within the footprint of the building. Lay stone blanket up to the required level, before pouring concrete raft. Here in this type of raft, a stone Blanket is laid on the soil in a layer. Where the construction site includes the small area of weaker soil or other soil types, a blanket raft may provide the best solution. Rather, the section is shaped with a more profound strengthened ‘toe’ which stretches out to help the outer side of a pit divider. Wide toe RaftĪ wide toe raft is utilized when the ground conditions imply that to give the essential burden support, a level raft solid chunk would need to be amazingly thick, which would make it over the top expensive. In this type foundation Steel mess typically used at the bottom layer (where the column foundation connection is close) and at the top of the Concrete mat (Midspan between column), to provide resistance in both the direction. Typically, this type of Raft is used, where the position of the column is a regular over the entire footprint of the building, it uses to provide the equal stress distribution on the foundation.

Mat floating foundation