INSTALLATION OF POWER TRANSMISSION TOWERS ON PERMAFROST SOILS

?The invention relates to the field of power engineering, and more specifically to pile foundations for power transmission line supports which are to be installed in various types of soil. The invention can be used in constructing and repairing pile foundations for power transmission line supports, and also in other areas of industry in which piles are subject to horizontal loads and soil frost heave forces. The technical result consists in enhancing the horizontal load-bearing capacity of a pile. The aim is achieved by means of driving a casing pipe and lowering a pile into same, wherein, during the process of lowering the pile, rigid elements are installed on the shaft of the pile by means of welding, which process involves marking, on the pile, a zone for positioning the rigid elements and, during the driving of the pile, when the lower marking reaches the level of the top of the casing pipe, the gaps between the casing pipe and the pile are measured geometrically and the rigid elements are prepared on the basis of the results of the measurements; the rigid elements are welded-on in pairs from opposing sides in a single vertical plane, and the operation is repeated as the pipe is lowered.