Raised Foundations(RF) Raised type of foundations is used in coastal areas because receives large amounts of rain to flooding. RF requires crucial planning because they are able to support the home and walls also provide protection from moisture. 2 types of RF:
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Type of foundation in the coastal area depends upon the type of sand, bearing capacity of the soil, it may be rocky or brittle stones nearby area.
Also the type of building to be constructed it may be a single storey, 2 storey and multi-storey building. the need for the foundation is according to the type of sand and building to be constructed.
In general, the bearing capacity of the soil is not good enough, then the pear Foundation is to be adopted for multi-storey buildings.
In the sloped ground, stepped Foundation is adopted for giving is stability. In this case, pile Foundation is to be adopted in a deeper section of ground to provide a horizontal surface and also and sure about future stability. This type of foundation also resists earthquake vibrations and wind loads pressures.