BORED LOW-BURIED PILES FOR FEW-STORIED CONSTRUCTIONS IN YAKUTIA
The article highlights the efficiency of use of bored low-buried piles with widened support for low construction in the conditions of permafrost. The main objective of such technology is ensuring stability of the base under a building due to reduction of a layer of seasonal thawing of frozen soil. The technical result is reached by the use of terminal-insulating polystyrene under the building. The results of mathematical modeling of processes of heat exchange «construction-soil» show that effective thermal insulation allows reducing depth of frozen soil thawing during exploitation of the construction. Thermal influence of small-sized buildings on frozen soil decreases and there is a possibility of stabilization of the top surface of permafrost under the base of fundament. The article contains results of offered technology and natural supervisions over the temperature condition of soil which freezes and thaws under buildings in Yakutsk. Technical and economic efficiency of using offered fundament base in the conditions of permafrost is proved.