ARRANGEMENT METHOD OF SUPPORTS OF OVERHEAD POWER TRANSMISSION LINES ON PERMANENTLY FROZEN SOILS

摘要

FIELD: power industry.SUBSTANCE: arrangement method of supports of overhead power transmission lines on permanently frozen soils, in which a casing pipe is driven and a pile is submerged into it. During pile submersion process, installation of stiff elements is performed onto the shaft of the pile by welding, for that purpose, location zone of stiff elements is marked on the pile. At pile driving, when the lower mark achieves the top level of the casing pipe, geometrical measurement of gaps is performed between the casing pipe and the pile, and as per measurement results, stiff elements are manufactured, which are welded in pairs on opposite sides in one vertical plane, and as the pipe is being submerged, the operation is repeated.EFFECT: increasing carrying capacity of a pile on horizontal loads; improving reliability due to action of forces of frost boil of the soil on the pile; reduction of labour input and material consumption.2 cl, 1 dwg