Looking for the Difference Between Shallow and Deep Foundation? Then you came to the right place. Deep and shallow foundations are one of the most important parts of a structure.
These are responsible for transferring the total loads that the structure has to the ground and at the same time are responsible for providing stability. Foundations are classified into two parts, which are deep and superficial. These are used taking into account the depth they must have to provide stability to the construction.
These are the Differences Between Shallow and Deep Foundation
The foundations deep and superficial have several differences. These differences can be evidenced in their definition, in the depth they need, their cost, feasibility, the mechanism they have for the transfer of loads, the advantages, the disadvantages, the types that each one has, among others. In this article we are going to tell you in more detail about each of these differences that we mentioned above.
Definition of deep and shallow foundations
The deep foundations are the base that is installed at a greater depth and is responsible for transferring the loads of the structures that it supports to the soil strata that have a great bearing capacity. On the other hand, shallow foundations are those that are installed near the surface of the earth or are responsible for transferring loads at a shallow depth.
Depth they need
In the case of shallow foundations, they have shallow depths that are generally 3 meters or in other cases the depth of the foundations is less compared to the base of the structure. However, in the case of deep foundations, their perforations are larger compared to shallow foundations, this is because in many cases piles are used to support the structures and these have a usual length of 15 to 60 meters.
Cost of deep and shallow foundations
Deep foundations are more expensive compared to shallow foundations because more resources are used for their installation, such as machines, materials, transport of materials, among others.
Feasibility of its construction
Deep foundations have a more complex construction process, for this reason they have a more complex construction feasibility compared to shallow foundations.
Mechanism how they transfer their loads
Deep foundations transfer their loads using shaft friction or in other cases through final capacity. In the case of shallow foundations, these are responsible for transferring their loads mainly through the end of the bearing.
Advantages that each one offers
Deep foundations are characterized in that they can be installed at a greater depth, they provide lateral support and resist lifting, they are effective when shallow foundations cannot be built, they are capable of supporting considerable loads, etc. On the other hand, shallow foundations are more available, require less labor, their construction procedure is characterized by being simple and at a very low cost, etc.
Disadvantages they present
Deep foundations have several disadvantages, among the most considerable being that they require qualified work, their construction procedure is more complex, they can take a long time and some types of deep foundations are not flexible. For its part, the disadvantages of shallow foundations can be observed thanks to the fact that they allow settlements that are generally applied for light constructions, they are weak against lateral loads, among others.
Types of shallow and deep foundations you can count on
On the side of the deep foundations you can count on the dock bases, the piles, the Caissons, among others. With regard to deep foundations, you can find isolated footings, slab base, combined footings, etc.
These are the main differences that you can find with shallow and deep foundations, it is important that you know very well the terrain and the type of structure that you are going to build so that in this way you can choose the type of foundation that best suits your project.