The good decision for construction of buildings which should be located on different types of soil is screw piles. And, application of pile subjects of technology is more effective, than soil and landscape conditions are more difficult. Such designs allow to accelerate construction of the base and to noticeably reduce the cost of works. What shortcomings of the base on similar piles?
Instruction
1. At the beginning It is necessary to tell about design of such pile. So, the screw pile is iron pipe with the sharp end and the blade in the form of spiral. Before them used in the form of support of bridges and power lines in the frozen and problem soil. High bearing capacity of such pile is explained by the fact that during screwing in the soil between rounds is not loosened, and is condensed with the blade, that is, the screw pile enters the earth as screw in tree. After installation of pile it is cut on level, and from above fix special basic site - head on which later mount channels or wooden bars.
2. It is heavy to arrange the pile base on stony and dense soil, and the option with such piles is not suitable for rocky breeds at all. At installation to such earth the risk of damage of protective layer and, as a result, emergence of corrosion increases. However, it is possible to carry out works on installation with attraction of special equipment, but then it is necessary to be ready to increase in financial expenses.
3. These iron pipes are subject to corrosion. If their anticorrosive processing of due quality has not been made, then the building can long not stay.
4. Among minuses of similar piles and the fact that already established pile cannot be checked for damages. It is necessary to hope only for professionalism and attentiveness of the workers establishing it.
5. When using screw piles of unknown firms the bad quality of welds and other factors turning construction with their help into risky invention met. New piles have to correspond completely to all necessary parameters, such as correct form of the blade and tube thickness.