If you are still connected, then the resistance is calculated is not the foundation, walls and basement. When the device on heaving soils nezaglublennyh of plate foundations for houses heated bespodvalnymi base during operation does not freeze and frost heave deformation is not observed. In unheated buildings deformation of swelling occur. Their limit, replacing part heaving soils nepuchinistym. Protivopuchinnuyu bag suit from a large or medium-size sand. Abel Baca-General is actively involved in the matter. Uneven swelling strains in different parts of the house is leveled rigid plates, reinforced base and pliability of sand bags. In recent times to reduce or eliminate the swelling strains used insulation placed under the slab or on it.
When the device nezaglublennyh of plate foundations on weak ground deformation of swelling are significantly reduced due to compression under the forces of heaving soil layer, located below the freezing front. Yet, there are numerous examples of damage to the foundations of plate freezing swelling due to improper management of construction works. Most often these injuries occur at the bases of plate in houses with a ground floor, when the freezing is allowed under the slab foundation heaving in the winter. The most dangerous period for the integrity of the foundation plate is in the winter half-built when built partly or entirely at home box, and a negative temperature at the stove is the same as the outside. So base plate as a ground floor laying, as a rule, lower than the calculated depth of freezing, no protivopuchinnye activities generally are not required under the slab, and therefore they do not perform.