Field Studies of Technologies for Reducing Frost Heaving of Line Supports in the Conditions of the Republic of Sakha (Yakutia)

Frost heaving of power transmission line supports in regions with permafrost soils directly affects the reliability and uninterruptible operation of power supply systems. The article provides information on the work on field studies of the effectiveness of using anti-heaving coatings and shells "Reline" in application to wooden and concrete foundations of overhead power transmission line supports to reduce the tangential forces of frost heaving of soils in the climatic and geocryological conditions of the Republic of Sakha (Yakutia). During the work, a test site was set up on a heaving site in the city of Yakutsk, 12 cycles of monitoring the altitude position of the support foundations and the temperature regime of the soil were carried out. The obtained results demonstrate the efficiency of using the tested coatings in the conditions of the Republic of Sakha (Yakutia).The work was carried out by Yakutsk Design Research Institute of Construction and Ural Plant of Polymer Technologies "Mayak" by order of PJSC "Yakutskenergo".