PARENKINA O.L.
TyumenNIIgiprogas, Russia

Nowadays on provision to serviceability of engineering buildings is spent the much of facilities. Known that cost of foundations in regions of spreading a permafrost forms beside 70% from cost of whole building.

One of the priority problems is presence lithg salts in frozen sorts, composing relief of territory. Zasolennye sort freeze under more low temperature contains more unfrozen water, than usual frozen soil, as defines their change from insalted frozen soils on physical features, toughness, deformed and other characteristics. At determination carrying ability of bases a pile on results of field test necessary to take into account change degrees salted groowe a solution at period of usages on experience local construction. At calculation carrying ability of bases a burofks a pile salted gruntist a solution and resistances a shift on surface a pile must be taken on salted and resistance a shift on surface a pile adjoining natural soil.

Though, use in calculations carrying ability of basis of foundations of importances salted surrounding soils, installed by prospecting, not always corresponds to change salted soils at period of usages. Must be also taked into account the increased karrozian influence salted soils on material of foundations. For foundations this defines the choice a principle a construction and technical decisions on designs, for construction a bore hole – using an action on warning possible water- and gas.

Broad spreading salted soils on territory YAmala promoted the accumulation an experience, basically founded on small villages with light buildings and buildings which shows that when designing and construction on salted soils necessary use a complex season device.

At present when designing and construction of bases and foundations of buildings and buildings on salted soils, for the reason increase carrying ability find broad using the pile foundations with greatly possible reduction a temperature salted soils on the whole depth of submersion a pile, including with use artificial chill in daylight-savings time; provision an anceroven a pile from influence of power under initial and seasonal froze of soils; produced warming surface of soils by spume. Also possible using a pile with unlong by heel, made on small depth and calculation of bases with characteristics of melting soils. In recently find broad using an burrow a pile, having enough greater area of cross-section. Offered concept a construction of bases and foundations of buildings and buildings on salted soils will allow to provide stability an object in process of usages. Also possible using a pile with unlong by heel, made on small depth and calculation of bases with characteristics of melting soils. In recently find broad using an burrow a pile, having enough greater area of cross-section.

Offered concept a construction of bases and foundations of buildings and buildings on salted soils will allow to provide reliable stability an object in process of usages.

OIL AND GAS OF ARCTIC SHELF 2008