Development of a floating foundation-free power line support project

The results of the development of a project for a floating power transmission line support designed for relocation and temporary installation in areas of river flooding in cases of collapse of the main pillars are presented. The classification of power transmission poles by materials of manufacture is considered, various variants of floating platforms are presented, depending on the method of regulating the position of the platform and the method of securing the platform. Based on the systematized data on existing structures, the material of the power line support was selected, the support model was selected and the method of fixing the platform above the water was justified. The support is made of composite materials, the platform is mounted on screw piles at a height of one meter from the water level. The platform deck is made of steel lattice sheets with an anti-corrosion coating. The load-lifting capacity is calculated taking into account the own weight of the platform, the masses of the supports and the operational personnel. The choice of elements of the floating platform, such as a metal base with floats, a floating board deck and a gasoline winch, has been made. A model of the developed platform with a support mounted on it is presented, and a sequence of strength calculations based on determining and comparing the values of the moment of resistance and the moment of inertia from a concentrated and distributed load is presented. A method for determining the load on piles is given, on the basis of which the pile size is selected. A design scheme for the distribution of loads on piles and a method for selecting a winch for traction load have been developed.