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Mat foundation ppt.
Mat foundation often considered to be used when dealing with the following conditions.
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6 mat raft foundation 7 types of mat foundations 8 to design mat foundation.
It is used where the supporting soil has low bearing capacity.
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It is common to use mat foundation or deep basements to transfer the column loads to the underlying soil as well as provide floor slab for the basement.
A mat foundation is used when the subsoil is weak and column loads are so heavy that the conventional spread footings cover more than 50 of the building area.
Raft mat foundation is used in those places where we have less bearing capacity of the soil.
The soil is soft with a low bearing capacity.
Mat foundations 10 1 introduction a mat foundation is a large concrete slab used to interface one column or more than one col umn in several lines with the base soil.
The bearing capacity increased by combining all individual footings in to one mat since bearing capacity is proportional to width and depth of foundations.
Mat foundation free download as powerpoint presentation ppt pdf file pdf text file txt or view presentation slides online.
Mat foundations are sometimes preferred for soils that have low load bearing capacities but that will have to support high column or wall loads.
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Presentation on mat foundation 1.
The spread footings cover over 50 of the foundation area because of large column loads.
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It may encompass the entire foundation area or only a portion.
Mat or raft foundation is a large concrete slab supporting several columns in two or more rows.
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A mat foundation also may be used to resist hydrostatic pressures or to bridge over small soft spots in the soil provided the mat is adequately reinforced.
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Presentation on mat foundation department of civil engineering 1 2.
Hydrostatic uplift resistance is needed etc.
Mat foundation raft foundation it is a combined footing that may cover the entire area under a structure supporting several columns and walls.
Although mat foundations are more difficult and more costly to design than individual spread footings they can be used effectively.
At those places we use mat foundations to distributes the whole loads of the structure to the soil when the area of the footing was increase than the soil load bearing capacity will also increase because this foundation reduces the stress on the soil at the same place.
