FIELD: construction.
SUBSTANCE: invention relates to construction and is intended for the construction of underground pipelines in permafrost soils. In the method, the anchoring device for fixing the pipeline includes two anchors, immersed in permafrost beneath the bottom of the trench on opposite sides of the underground pipeline. Anchors over the pipeline are connected by a power belt. Each anchor has several helical blades with a diameter d, located along the thrust along one screw line with the other blades. Above power belt is made of a flexible element in the form of two branches of a closed loop. Such lower parts of each branch are freely passed inside the rigid support bracket of the circular cross-section or through the rotation roller at the upper end of the traction of each screw anchor and are movable in the direction of the longitudinal axis of the pipeline. In the upper part of the closed loop at two points equidistant from the axis of the anchor device, each branch of the flexible element is attached to a metal cradle, mounted on a soft gasket at the top of the pipeline.
EFFECT: increased reliability of the construction of underground pipelines in permafrost and improved efficiency of construction.
4 cl, 4 dwg
