METHOD OF DETERMINING ACTUAL BENDING STRESSES OF A PIPELINE Russian patent published in 2020 - IPC G01L1/25 F17D5/00 

FIELD: monitoring of pipeline systems.

SUBSTANCE: invention relates to monitoring of pipeline systems operated in difficult climatic conditions, in particular to methods of assessing technical condition of pipelines of above-ground and underground laying during inspections, repair of pipeline, as well as for assessment of efficiency of compensating measures and repair on section with non-normal stress-strain state. Selecting at least two points of installation of scanning device, located on different sides of pipeline, setting at least 2 marks on upper generatrix along edges of measured pipeline section and at least 2 marks on soil in direct visibility from scanning points, pipeline section is marked out to identify section start and end, scanning pipeline surface from at least two scanning points located on opposite sides of pipeline, scanning results are copied from a scanning device using a cable or an electronic data medium and transmitted to a computer for processing, processing laser scanning data, determining design estimate of bending stresses of pipeline and direction of bend, determining cross-section of pipeline along minimum bend radius, in which maximum bending stresses act.

EFFECT: high quality and reliability of determining actual bending stresses of a pipeline.

1 cl, 2 dwg