METHOD OF CONSTRUCTION OF PIPELINE IN COMPLICATED NATURAL CONDITIONS Russian patent published in 1995 - IPC

FIELD: construction of pipelines. SUBSTANCE: pipeline is laid in a zigzag manner in valleys of temporary water passages. Transition from one slope to another one is accomplished in the form of an expansion U-bend, whose flange is laid at the level of the local base-line of erosion. Pipeline section between transitions are laid with observance of equality of the horizontal angle of turning of the pipeline longitudinal axis to the natural slope of the water passage course in this section. Pipeline sections are placed above the maximum high-water level and below the first aboveflood-plain level. EFFECT: facilitated procedure. 1 dwg