Know the meaning of the foundation of the well
In general, there are different types of foundations, such as river stone foundations and chicken claw foundations. Each use depends on the type of land, the location of construction, and the size of the building. Now, in this article, Kania discusses the facts related to the foundation of the well. Come on, we understand together!
What is the foundation of a well?
As the name implies, the base of the well is shaped like a well. This type of foundation is created by casting using a cylindrical concrete material and then filling it with split stones. The size of the cylindrical concrete on which the well is based varies widely, including 80 cm, 250 cm, 300 cm, 350 cm and up to 400 cm. Meanwhile, the depth can reach 8 meters. In Indonesia, foundations are generally reinforced concrete or precast concrete.
Soil characteristics that require the use of well foundations
Not all lands can use well foundations. The most suitable soil properties for using this type of well foundation are soils with a hard layer 3-5 meters deep. There are several reasons why soil properties are not suitable for the use of other types of foundations. For example, in the foot plate foundation, the excavation of soil is so deep and wide that the processing process costs a lot of money and time.
Similarly, the types of concrete slab foundations that are difficult to apply to these soil properties, as surface water must be pumped out of dug holes. Therefore, the foundation of the well is the most appropriate choice for the properties of the soil.
Po requirementsndasi well
Before using the well foundation, there are some requirements that need to be considered. First, the bearing capacity of the well foundation must be greater than the weight of the building supported by the foundation. Second, the reductions that occur must comply with acceptable limits. Tolerance corresponds to 1 inch or 2.54 cm.
Advantages of the Well Foundation
Well foundations have three advantages in the building construction process. The three benefits are:
1. Deep foundation
Well foundations are the best alternative to deep foundations. The application will be easier if the parties have a lot of stone to fill the inside of the concrete of the foundation of this well.
2. No heavy equipment required
No heavy equipment is needed to lay the foundation for the well. This makes pile foundations the best solution when heavy machinery is difficult to reach the construction site and the piles cannot be moved.
3. Economic price
The final advantage is that the foundation of the well is relatively economical. Construction costs can be reduced because no heavy machinery or piles are required. In fact, in some areas, several factors can make the use of this foundation even more economical.
Lack of well foundation
There are both advantages and disadvantages. The following are the drawbacks of the well foundation you need to know:
1. The foundation of the well is sensitive to soil density
The application of foundation pits is very sensitive to soil density. When excavating, the density of the surrounding soil is disturbed. If the soil is characteristic of sand or gravel, there is a risk of landslides.If you are forced to do so, you need to give land Bentonite And casing the first. This one issue can also affect soil capacity and bearing capacity for piles.
2. Installation affected by the weather
The foundation installation process is also greatly affected by the weather. If it rains, you need to postpone the process. This is because the soil becomes softer and harder to dig. Since slit stones and mortar stones can only be thrown from above, it is difficult to control the density of the cylindrical concrete inside. Therefore, the strength is not reinforced and is not suitable for withstanding horizontal forces.
These are five facts related to the foundation of the well you need to know. For more information, please consult with the relevant parties. Do not make inadvertent decisions, as the foundation is the most important part of the building.
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Source : http://i0.wp.com/www.dekoruma.com/artikel/97077/fakta-pondasi-sumuran
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