As you know, the foundation must be the strongest part of any structure. Accordingly, the builders do everything possible so that the basis of any structure is as strong as possible, regardless of what we have soil and all other conditions.
Unfortunately, practice shows that almost any foundation, whatever the strength in terms of the strength, after some time loses its strength, or comes to emergency condition. If you find at least small problems, it is necessary to start acting immediately so that the situation is not aggravated. With deep analysis, it is possible to establish that in fact damage or deformation of the foundation much more serious than expected.
Special attention should be paid to the status of a column foundation. Frequently often on this base there are simply colossal loads that can be reflected in the quality of the foundation. If the construction is already operated for a couple of dozen years, then the repair is simply necessary, even if no signs of weakening foundation were found. Next, we analyze exactly which signs of weakening foundation are most often found in practice, as well as consider ways to solve the main problems.
Features of the columnar foundation
It is worthwhile to know that the Foundation is most often used for the construction of small structures. It will so much that this type of foundation is characterized by simplicity and reliability, but this is only if our structure has a relatively small mass. Most often, such a basis is found in the construction of small wooden private houses, arbors and other structures. Despite the fact that the above buildings often turn out to be not the most responsible projects, the basis still should have high quality and excellent strength.
It also needs to be understood that the durability of a columnar foundation directly depends on the basis of the construction of the foundation. If there was some inaccuracies in this process in this process, then gradually all errors will let yourself know. Even if all the work went without the slightest mistakes, gradually the problems will still manifest. This suggests that there is a lot of reasons, because of which the foundation is gradually weakened. For example, it can be groundwater, or too high load on the base.
Signs of weakening of a column foundation
- Cracks on the walls. This feature suggests that a column foundation is gradually deformed, and if you do not carry out the entire range of repair work on time, then cracks will only increase. Accordingly, it is necessary to start acting when the first cracks appeared, otherwise then to repair the foundation will have to spend too large money. At the initial stage of weakening, it is possible that only small repair work will be required, which will not be too expensive.
- Enclosing windows and doors. Again, this trouble is related to the fact that the foundation gradually begins to deform under the weight of the structure itself. Accordingly, if at least minimal jams are detected, you need to act quickly, as it will definitely occur the day when the doors or windows cannot be opened at all.
- Range of the lower crown. This is also a common phenomenon, due to which there are a lot of problems. It is necessary to ensure that the state of the foundation is always acceptable.
There are still quite a few signs that can coincide with many other phenomena, but at the slightest suspicions it is necessary to react and carry out repair work. If possible, it should be fully replaced by the foundation, but this is most often huge money. If the foundation began to lose its strength, then after some time he will still be unreasoned, even if repair activities were carried out regularly.
Causes of the weakening of the foundation
- Aging materials. It is no secret that gradually the strength of the materials is reduced. This applies to the components of a columnar foundation. Accordingly, there is a 100% chance that a certain amount of time, the base will be disretened due to the low strength of the materials.
- Increased load on the base. It is often obtained that the owners make various extensions to the structure, and gradually the load on the foundation increases. If the load is too high (do not correspond to the base characteristics), the foundation will deform until its strengthening is made. Thus, after conducting large construction work, it is necessary to strengthen the foundation. In addition, if inside the construction is installed too heavy equipment, it can also negatively affect the state of the base.
- Ground water level. For a certain period of time, the level of groundwater can essentially fluctuate. Accordingly, the groundwater negatively affects the basis, especially if there is no waterproofing. So that such problems can be avoided, you need to refer to the appropriate services to the foundation, which will analyze the soil. If information is established about the threat of a high level of groundwater, you should either produce high-quality waterproofing, or at all do not build on the presented area.
- Move grounds. Again, as mentioned in the last point, it is necessary to conduct an analysis of the soil, since because of the progress, the foundation can be significantly deformed. In some cases, during construction, it is necessary to simply increase the strength of the foundation, and then the movements will not bear any threat. In addition, the faithful decision will be a refusal to conduct construction work on problem ground.
Once again, it should be noted that in front of any construction work should refer to specialists who will conduct a complete analysis of the existing situation on the site. Unfortunately, problems can be the most diverse nature, so it is better to know in advance to everyone that it does not have serious problems. Experts should check the depth of ground freezing, its density, as well as the depth and volume of groundwater. These are the most basic parameters that do not begin to build.
The process of repairing a column foundation
First of all, you need to know that for the full repair of the foundation it is necessary to make a rise in the house above the base. It is possible to do this with the help of a lifting crane, but it should be predetermined as much as possible the structure so that its rise is as simple as possible. If there is a large furnace in the room, which is not installed on a separate foundation, it should be disassembled and transported in a safe place.
Instead of a crane, an oil or mechanical jack can be used. Their installation is based on specially trained platforms. Complete metal sheets.
- The lower crown must be securely strengthened, as well as protect against significant deformations. As protection, you can use a metal plate, which, as in the past case, will reduce the deformations.
- In order for the risk of the risk of destruction, it is necessary to use long boards that are nailed vertically into each log (if the construction is wooden). Such a solution will significantly strengthen the design.
Often, repair work is carried out due to the harvesting crowns of a wooded house. The reason may wage in the fact that gradually waterproofing (if it was present) became unusable. In such conditions, the wood begins to rot, dolls and cracks appear. Accordingly, it is necessary to replace the waterproofing on time.
- Again, it is necessary to raise the construction to a certain level so that you can roughly estimate the existing situation.
- If the waterproofing is indeed in a deplorable state, it should be replaced. At the same time, a visual analysis of the state of the lower crowns should be made. It is very often it turns out that they are amenable to rotting, therefore, unsuitable for the operation of the logs need to be replaced.
- Wood processing with antiseptic means does not hurt. Of course, with full-fledged contact with water, wood will still be unusable, but often antiseptics retain an acceptable state even in sufficiently severe conditions.
- Ruberoid can be used as the main waterproofing. It must be uniformly located on the entire surface, so that no drop does not affect the wood elements of the construction. This process should be as responsible as possible, as mistakes are actually easily.
In the event that problems with the bar foundation are associated with the inclination of the pillar (or several columns), you need to quickly act. This problem, as already mentioned, is due to the movement of the soils. We are talking about bunching soil, which negatively affects the situation associated with columnar supports. In such a situation, the most faithful option will be the complete replacement of deformed pillars. Many specialists advise replace ordinary concrete pillars on burbot piles. They are much stronger, and also stable on a variety of types of soils. The installation process of the Burbinal Piles is as follows:
- Again, it is necessary to raise the structure for a certain height, after which it is securely fixed.
- Next occurs around the entire perimeter of the base so that you can easily remove all available pillars. In such a situation, it is necessary to spend all the work quickly and carefully, since here we have increased danger. All pits under the pillars need to deepen even more, and, where, by 30-50 cm.
- At the above level, the supporting platform for piles is equipped. Most often, the area of \u200b\u200bsuch a plot should be 40x40 cm.
- In the dug hole, it is necessary to float a small layer of sand (about 15 cm). This layer needs to be highly tumped as much as possible, and then immerse the pipe and pour a certain amount of concrete into it.
- Immediately after concrete begins to capture, it is necessary to arrange a certain amount of fittings inside the pipe (it all depends on the volume of concrete and common building scale), and then concrete is poured into the pipe. Finished pile must be installed in such a way that there is no longer the slightest deviation from the verticality. It is not easy to do it, but still have to try.
Unfortunately, very often it turns out that building scales are too large, so you have to bet on the help of relevant services. With some things to cope with some things it is unlikely to succeed, and even more so without specialized equipment.
Other solutions solving problems
As we have already spoken, there are often situations quite often, in which the status of a columnar foundation is too sad. Accordingly, if after careful analysis it was found that the foundation on the verge of destruction should not be carried out, since here the best solution will be the full substitution. Such a process takes a lot of time, forces and money, however, so we will be sure that the foundation will serve many more years.
Many people who have previously come across the repair of the foundation, know perfectly perfectly than they can turn into a senior attitude to the state of the foundation. Therefore, in most cases there is a need for a regular inspection of the base. Of course, if this is a column foundation, then there will be some problems with this, since it is almost impossible to fully inspect such a base. However, even in such conditions, you should pay attention to the "signals", judging by which the initial stages of the weakening of the columnar foundation can be determined.