Scouring and the undermining issues are solved by the construction of foundation.The soil movement effect is resisted and prevented.The load intensity is reduced to be within the safe bearing capacity of the soil.Load Distribution is carried out evenly.Foundation serve the function of providing a level surface for the construction of substructure.Provide overall lateral stability for the structure.This load transferred to the soil should be within the allowable bearing capacity of the soil.īased on the purposes of foundation in construction, the main functions of the foundation can be enlisted as below: The foundation serves the purpose of completely distributing the load from the structure over a large base area and then to the soil underneath.Differential settlement is an undesirable building effect. This uniform transfer helps in avoiding unequal settlement of the building. A proper foundation distributes load on to the surface of the bed uniformly.Specially designed foundation helps in avoiding the lateral movements of the supporting material.The proper design and construction of foundations provide a proper surface for the development of the substructure in a proper level and over a firm bed.The stronger is the foundation, more stable is the structure. Foundation are the main reason behind the stability of any structure.Allowable bearing pressure can be defined as the pressure the soil can withstand without failure.įoundations are provided for all load carrying structure for following purposes:.The settlement caused during the first service load or have to be within the limit.The underlying soil below the foundation structure does not undergo shear failure.The foundation for each structure is designed such that: The construction of foundation has to be done to resist the external attack of harmful substances. Disposal of the waste material from the operations must be disposed properly. Such effects have to be studied and taken care before undergoing such operations. These can sometimes cause the settlement issues of the nearby structure. For example, the digging and piling works done for deep foundation may result in adverse disturbance to the nearby soil and structural foundation. The design of the foundation must incorporate different effects of construction on the environment. The material and the type of foundation selected for the desired structure depends on the design loads and the type of underlying soil.
The construction of the foundation can be done with concrete, steel, stones, bricks etc. Once the foundation has been packed correctly the construction of the building can be started. The projected steel rods that are projected outwards act as the bones and must be connected with the substructure above. These trenches are incorporated with reinforcement cage to increase the strength of the foundation. To get stronger base foundation concrete is poured into this trench. To construct a foundation, trenches are dig deeper into the soil till a hard stratum is reached. If the constructed building has the plan to extend vertically in future, then a deep foundation must be suggested.įig.1.Building Foundation in Construction The deep foundation transfers the load to a deeper depth below the ground surface.Ī tall building like a skyscraper or a building constructed on very weak soil requires deep foundation. Generally, the foundation can be classified into two, namely shallow foundation and deep foundation.Ī shallow foundation transfers the load to a stratum present in a shallow depth. Functions of Foundation in Constructionįoundation is the lowest part of the building or the civil structure that is in direct contact with the soil which transfers loads from the structure to the soil safely.
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