The foundation was instrumental in sustaining a home because the building is a structural component that serves to continue the style of all the buildings on it to the ground. Development of this foundation should be able to guarantee the stability of buildings against some foundation itself, useful loads, and external forces such as wind pressure, earthquake and others. The decline in local or equitable footing that exceed a certain limit will cause damage to buildings. Therefore, the excavation for the foundation soil must reach the ground so hard.
By Umut there are two kinds of foundation, that is the foundation of shallow and deep foundation is used in the construction of shallow foundations in soils that hard or simple buildings. Included in this type of foundation, among others, local river stone foundation, stone column foundation, foundation footprint / local slab (concrete), strouspile foundation, and wood pile foundation.

While the deep foundation is used in buildings in soft soils, building horizontal (inter-column distance of more than 6 m), and multistory buildings, Including this type of foundation, among others, including pile foundation (concrete materials, iron, steel pipe), pitting the foundation, foundation borpile, etc.

To prevent a decline in the local (one of the pool) on the foundation of the above need to be tied to the concrete foundation that serves as a brace Sloof recharge or ground water seepage into the building and the retaining wall of the building. Sloof concrete existence would make the decline occurred together (not a local decrease). This caused Sloof functions also as a concrete binder.

In this book will be discussed such as the type of shallow foundation stone column foundation, foundation footprint / concrete slab, and foundation srtouspile and genius of deep foundation such as pile foundation, the foundation sinks, and foundation borpile.

A. Elections form the foundation
In the election forms and types of foundation sufficient to note a few things that work-related foundation. This is caused not all types of foundation can be implemented in all places. For example the choice of pile foundation in a densely populated place certainly does not match exactly although technically and economically in accordance with the schedule of work. Some things to consider in determining the type of foundation is
1) state land that will be paired foundation
2) restrictions due to construction thereon (superstructure)
3) environmental factors
4) time job,
5) costs, and
6) the availability of materials making foundation in the area.

Selection is based on the foundation soil bearing capacity, to note the following points.
1) When land is located on the surface of hard ground or 2-3 meters below the ground surface bi foundation selected the best type of shallow foundation (foundation lines or foundation footprint) and foundation strouspile
2) When the hard ground is located at a depth of up to 10 meters or more below the surface of the soil types commonly used are the foundation pile and the foundation sinks or minipile borpile.
3) When the hard ground is located at a depth of up to 20 meters or more below the surface of the soil types commonly used is the foundation pile foundation or foundation borpile.