🏠 rostverkovy pile-foundation: types and purpose

If the site has a fairly complex landscape as a basis for the house should be used pile-foundation rostverkovy. Such base has a high performance and has a number of advantages. We offer to meet with the existing varieties and procedures for installation work.

Rostverkovy pile-foundation: conditions of use

This ground is able to last for many years, withstanding considerable temperature fluctuations. Suitable for public buildings residential homes. apply for frame structuresAs well as structures built from brick and silicate blocks. Permissible construction in areas with high density, high water table or unstable soils and quicksand.

Design features and principle of operation

Rostverkovy pile-foundation consists of piles and grillage. Last - a slab or beam connecting support each other. Mounted above the ground. Is monolithic, precast-monolithic teams.

Compound supports together using a grillage facilitates uniform load distribution. This is true in the construction block or brick buildings.

The main types of pile-foundation rostverkovogo

Design of pile-foundation rostverkovogo may differ. For his device can be used various types of supports. We offer to get acquainted with the main types, to make it easier to opt for a particular type of base.

According to the type of binding

For manufacturing steel grillage channel can be used either reinforced concrete. The most widely used second type. This design is able to withstand considerable loads. If erected Combining, garage or skeleton structureYou can use metal piping.

According to the type of pile

Depending on the type of supports, pile-rostverkovy foundation can be:

1. Screw. similar to base on screw pilesBut it has disposed on grillage supports. piling metal, have a large diameter. Their lower part is performed with the pointed blades for easy tightening.
2. Bored. The supports are formed inside the asbestos cement pipes are used as permanent formwork. Optimal variant at the device base by hand.
3. Precast. Allows the use of hollow pillars and solid, made of steel, wood, concrete. Mounted in the prepared hole, the depth of which is equal to the third bearing length.

By the method of immersion into the soil

Rostverkovy pile-foundation, depending on the method of dipping poles in the ground, can be divided into:

• Drop. For piling used buses;
• printed. First, wells are drilled, then the prepared hole poured concrete;
• screw. For screwing the supports used special equipment.

Advantages and disadvantages

For pile-foundation rostverkovogo characterized by a number of advantages. Such a foundation:

The disadvantage is:

From devices rostverkovogo pile-foundation is to give in the construction of a detached house on a plot with a horizontal displacement of the soil or with significant shrinkage. This could trigger a violation of the stability of the supports.

Selection criteria: when the pile-rostverkovy foundation - the best option

Opting for the pile-foundation rostverkovogo done in the event that:

• plot with a steep slope. Apparatus belt structure it will be difficult;
• there are elements landscape designWho do not want to break down during the construction of the house;
• impossible to perform excavation work because of the proximity of adjacent structures;
• groundwater came close to the surface. high bedding device is fraught with considerable financial expenditure;
• it is necessary to shorten the construction period;
• on the site already has utilities. Their presence complicates the construction foundation.

Design

Before installation is done the exact calculation of pile-rostverkovogo foundation that starts with Elaboration of the future building and drawing the base sketch. Required worked piles arrangement. They are placed in places of intersection of the walls and in the corners.

Attention! The distance between the piles usually not more than 3 m. The larger value of additional supports are mounted.

Together with the calculation and determination of the number of locations of poles, calculated their height and thickness. For exact calculation you need to know:

• the mass of the structure erected. Calculate the total weight of finishing materials, furniture, household goods;
• supporting area. Knowing the weight and considering the reliability coefficient is determined the load on each leg;
• the dimensions of the piles. It is determined by the area of ​​one support. The total value is compared with a desired reference area.

Calculation of the required amount of materials

Before installation should buy everything you need. Number of piles is calculated by the developed scheme. Material for the manufacture grillage purchased in view of its parameters. To do this, the required volume is determined concrete solution.

Construction technology: the main stages

To pile-rostverkovy foundation able to withstand operational loads during the installation work should be carefully observed technology. We offer to meet with the main stages and their content.

Markup and earthworks

Prior to the start of construction on the site, you prepare the territory. If there are spaces or rocks that prevent the formation of the base, they are removed. The soil is leveled. Apply markup. To determine the position of support pile-foundation rostverkovogo used pegs and thread. It turns out the place the outer and inner walls. Controls the position of the diagonals.

After executing the markup made earthworks. Dig a trench under the grillage. Its width depends on the purpose of erecting the structure. For residential buildings - 0.8 m, for hozpostroek - 0.25 m Depth of the trench -.. 0.7 m hole poles 0.2-0.3 m drill holes for supports. This is done using a suitable tool or special equipment.

Formation of a sand cushion

Prepared by trench geometry controlled by a level. At the bottom is placed sand bed thickness of not less than 0.2 m. For its formation used sand coarse fraction.

Attention! Before compacted sand should be thoroughly wet.

formwork arrangement

installation formwork is made on the prepared base. Grillage width must be greater than the thickness of the walls. During assembly, the panels must be securely fixed to prevent displacement under the weight of the cast solution.

Mounting piles

Running assembling piles selected method. Props must dive deep enough to prevent their displacement under the influence of adverse factors.

Fill grillage

After the installation of supports made fill grillage. For this:

Illustration	Description of the action
	It is formed from two ribbed belt reinforcement.
	Reinforcing elements are installed in the appropriate places. They must ensure a steady increase grillage strength.
	Lamellar filling is made concrete. The composition is mixed evenly in volume in order to avoid accumulation of air bubbles.
	Concrete covered with foil to prevent it from cracking during solidification.
	After solidification of concrete, formwork understands. Controlled geometric parameters generated grillage.

Warming and waterproofing

That the house was warm and comfortable, runs around the perimeter of the house being built waterproofing and warming rostverkovogo pile-foundation. Most often used for this foam and polyurethane foam.

Possible errors in the construction of pile-foundation rostverkovogo

With self-installation of pile foundation rostverkovogo novice builders often make mistakes that can have a negative effect on the term of the base service in general. Most often, it is:

• lack of communication between the piles and the raft. In winter, due to soil freezing tipping force can push the pile, causing damage to buildings. Especially if the light materials used for its construction;
• lack of space under the raft, which can cause damage to the soil at the last movement. To eliminate such a phenomenon in the bottom formwork stacked plates StyrofoamUsed as a shock absorber;
• lack of depth of the. This can cause shrinkage and construction fill the space between the raft and the ground;
• error when calculating the bearing capacity of the base due to incorrect determination of the type of soil.

Share in the comments, if you had to mount a pile-rostverkovy foundation? For any structure you choose this basis?