Foundation (engineering)
Foundations are designed to have an adequate load capacity depending on the type of subsoil/rock supporting the foundation by a geotechnical engineer, and the footing itself may be designed structurally by a structural engineer. The primary design concerns are settlement and bearing capacity. When considering settlement, total settlement and differential settlement is normally considered. Differential settlement is when one part of a foundation settles more than another part. This can cause problems to the structure which the foundation is supporting. Expansive clay soils can also cause problems.
Earth house
Unlike traditional residential houses built on the ground, the aim of building an earth house is not to live under or in the ground, but with it. If ground and house are separated, a house is built “into the air”, resulting in the loss of heat and humidity, and the exterior shell of a building loses lifespan. The earth house concept uses the ground as an insulating blanket that efficiently protects it from rain, low temperatures, wind and natural abrasion. An earth house does not have to be built under the ground, it can be placed onto naturally grown terrain. The earth house is a flexible construction which can be built according to the wishes of its owners, fulfilling the requirements for individuality and energy conservation.
The structural engineering of an earth house creates for an organic design requiring spatial sense and creativity. Earth house architecture brings to mind habitable sculptures, incorporating artistic claim and sculptural quality.