The facilitated screw base successfully is used for individual construction in various climatic zones. This option is optimum for dachas and country houses built from sandwich panels, foam concrete blocks and ceramic porizovanny blocks. You can make such base without use of special equipment, the hands, even without having professional experience.
Screw piles – base basis
As the basis for the screw base use special piles – long hollow pipes to which production high-quality steel is applied. On one end of each pipe there is sharp tip and the blade in the form of "Archimedes's screw". If to establish such pile vertically and to begin to turn around own axis clockwise, under weight of curb weight this device begins to work as the screw and as drill, being literally screwed in in soil on necessary depth, not less than 1.5 m are normal.
That the screw pile could be turned around axis, in its body and upper part through diagonal holes into which insert pieces of pipes are drilled and use them as the rotary lever. Despite the simple design, screw piles are capable to provide necessary durability to the built building, they are irreplaceable if the site relief uneven or is available considerable bias. To additional advantages of such designs it is possible to carry cost, and to minuses – the restrictions connected with construction weight, heavy buildings on them are not recommended to be established.
When choosing piles pay special attention to quality of material and production – depends on it as will long stay the house. If on the bought piles there is no corrosion-resistant coating, put it independently.
How to make the screw base
Before building the screw base theof hands, carry out geological and geodetic researches on the parcel and choose the place where the house will be built. Expect necessary quantity of piles taking into account engineering soil characteristics and the fact that depending on length and diameter one pile can sustain up to 25 tons. Put the plan of the designed house for the topographical scheme and break building contour into rectangular sites. For each of them plan grid in which knots piles will be located. Consider that piles have to be located in tops of the planned rectangles.
When calculating necessary quantity of piles consider not only the total weight of the built building, but also the correction for wind, weight of snow cover and other atmospheric factors.
Move knots of grid – the location of piles to the area and establish them. That piles stood exactly, control their vertical position at screwing up by means of construction plumb. The established piles need to be cut off on the horizontal plane, the level is for this purpose used. In hollow pipes of piles it is necessary to fill in concrete to strengthen the base. After that it is possible to make and weld ogolovnik and to connect by steel girders or by means of logs all construction in monolithic construction of the base.