Deep buried strip foundation
Strip foundations can rightly be called one of the most popular types of foundations and are successfully used in our country for the construction of buildings and structures of almost any purpose. The tape method assumes that the foundation will be placed under the entire length of the wall (or separate rows of columns).
If the foundation is laid on a foundation consisting of raised soils (loam, clay soil, silty and fine sand, sandy loam, etc.), it is recommended to use buried strip foundations. Masu.
What should I know about buried strip foundations?
Deepening is used as a method of countering the expansion of the ground beneath a building, which can lead to deformation of the building and deterioration of its strength index. Swelling occurs when the water contained in the soil expands.
To avoid such unpleasant and even dangerous situations for construction reliability, the right equipment plays a very important role. The economy is completely inappropriate in this case. Of course, the issue of the price of deep strip foundations is an important criterion, but it is very important to give preference only to high-quality materials and strictly adhere to the technology of laying deep strip foundations.
The most important parameter to determine is the depth of the strip foundation. It depends on criteria such as:
- Soil type.
- climatic conditions peculiar to this region.
- Features of the site under construction (lowlands, hills, slopes).
- Such as the degree of load on the foundation of the building under construction.
Laying depth calculations are based on data on the freezing level of the soil and are usually placed about 30 cm below the actual freezing rate. For the Moscow Region, Moscow Region, and Regions, this figure varies within 1.5 meters.
Recessed strip foundations are usually used in the construction of houses.
There are heavy walls.
With basement or basement garage.
With basement.
When building on difficult soils, experts recommend laying stepped or recessed foundations that extend to the bottom. This ensures the stability of the foundation and avoids overspending on materials. This is because the deepened strip foundation price is included in the total construction budget and can represent a significant percentage of this amount.
The price of laying a deep strip foundation depends on:
- The size of the object under construction.
- Amount of building material used.
- Whether additional activities are available during the bookmarking process.
The foundation doesn’t have to be deep and expensive at all to be stable and reliable. The main thing is to accurately calculate the depth and width of the laying, take into account all the features of the soil and terrain, the expected load on the walls of the base, etc.
Deep Strip Foundation: A Work in Progress
Deep strip foundations can be monolithic or prefabricated. In the first case, it is poured from a pre-prepared concrete mixture into a pre-prepared formwork, and in the second case it is assembled from special factory-produced standard concrete or reinforced concrete blocks.
In any case, laying a deep strip foundation requires a wide range of work, and each stage is important. The main stages of work include:
- Geodetic works.
- Earthwork (drilling for pouring, can be carried out using special equipment).
- Sand cushion device (usually with compression performed using an exhaust plate).
- Dump the crushed stone pillow (similar to the sand pillow process).
- Installation of formwork.
- Installation of reinforcement cage.
- Arrangement of holes for ventilation.
- level control.
- Direct pouring concrete (using factory concrete grade M300).
- Dismantling of formwork.
- If necessary – backfill the soil.