define deep foundation
Not that deep 2 to 3 centimetre
the frost line is 36"
deep foundation & piles
Load-bearing structures typically use deep foundations, such as pile foundations or drilled shafts, to transfer loads to stable soil or bedrock. Shallow foundations, like spread footings or mat foundations, are also common for smaller structures where the load can be supported by the soil near the surface. The choice between deep and shallow foundations depends on factors such as soil conditions, load requirements, and structural design.
It doesnt have foundations. ITS BUILT IN THE SKY!!
The foundations for the Eiffel tower are different for the east and south legs (contained in a 7-meter deep well) and the west and north pillars. The latter being very close to the river Seine, the foundation well had to go 22 meters deep. Details in link below:
In construction, foundations are primarily classified into shallow and deep foundations. Shallow foundations, such as spread footings and slab-on-grade, are used when the soil near the surface has sufficient bearing capacity. Deep foundations, including piles and caissons, are utilized when surface soils are weak or when structures require greater stability, transferring loads to deeper, more stable soil layers. The choice of foundation type depends on factors like soil conditions, load requirements, and the structure's design.
Aleksandar S. Vesic has written: 'A study of bearing capacity of deep foundations'
Deep foundations are used in construction to transfer building loads to deeper, more stable soil or bedrock when surface soils are inadequate to support the structure. They are essential in areas with weak or compressible soil, high water tables, or heavy loads, providing stability and reducing the risk of settlement or failure. Deep foundations, such as piles and drilled shafts, also help mitigate the effects of lateral loads from wind or earthquakes. Overall, they ensure the safety and longevity of large structures.
In earthquake-prone areas, it is recommended to use deep foundations such as piles or caissons that extend deep into the ground to provide stability and prevent shifting during seismic activity. These types of foundations help distribute the building's weight evenly and reduce the risk of structural damage in the event of an earthquake. It is also important to consult with a structural engineer to determine the most suitable foundation system based on site-specific conditions.
It is a fancy way of saying doing something that helped build Canada, or create Confederation. Multi-Generational Canadians will often say their families forged the foundation of Canada, or laid the foundations of Canada, or they Built the Country. They are trying to invoke the image of large stone foundations to imply that the Confederation is stable, impressive, with deep roots and will be long lasting.
The Foundations ended in 1970.