Abstract: A method for installing driven cast-in-situ supports of pipes, power transmission towers, and in the mounting of buildings and structures on permafrost soils excludes the ingress of slurry and groundwater into the hole when installing driven cast-in-situ piles in permafrost soils in summer having a thawed seasonal freezing and thawing layer while avoiding the impact of frost heaving forces of soil from seasonal freezing conditions. The method includes driving a casing pipe at a depth of seasonal freezing and thawing of soil, drilling a pilot hole at a depth of not less than the depth of seasonal freezing and thawing of the soil, pouring hardening material in the amount required to fill in the space between the pilot hole walls and the pile from the bottom of the pilot hole to the bottom of seasonal freezing and thawing soil layer, installation of the pile in the pilot hole and poured mortar, and filling the remaining space between the pile and the casing pipe with non-frost heaving loose inert material.

Abstract: The invention relates to fire and heat insulation of pipes, and specifically to the installation of fire and heat insulation on welded joint of pipes that are used for transporting oil and oil products. The method for installing heat insulation of welded joints of pipes for above surface pipelining includes providing anticorrosive protection of the welded joint of pipes using a heat-shrinkable polymeric tape, installation of glass foam pipe coverings on the joint, fastening the pipe coverings using tie bands with locks, sticking hot-melt adhesive tape on the edges of the protective envelope of the pipe overlapping the glass foam pipe coverings, and mounting a protective galvanized metal housing symmetrically to a center of the welded joint. The technical result provides anticorrosive protection and heat insulation of the welded joint, and the proposed method reduces cost and complexity of installation.

Abstract: The invention relates to heat insulation of pipes, and specifically to the installation of heat insulation on welded joint of pipes that are used for transporting oil and oil products. The method for installing heat insulation of welded joints of pipes for above surface pipelining includes providing anticorrosive protection of the welded joint of pipes using a heat-shrinkable polymeric tape, installation of polyurethane foam pipe coverings on the joint, fastening the pipe coverings using tie bands with locks, sticking hot-melt adhesive tape on the edges of the protective envelope of the pipe overlapping the polyurethane foam pipe coverings, and mounting a protective galvanized metal housing symmetrically to a center of the welded joint. The technical result provides anticorrosive protection and heat insulation of the welded joint, and the proposed method reduces cost and complexity of installation.