(EP3124841) The invention relates to the field of engineering geodesy and may be used for monitoring of the condition, including position and deformation of pipelines. The technical result achieved during the use of the claimed invention is the use of the complex of interrelated monitoring measures that include the control position of deformation control benchmarks with the help of optic geodetic devices and with the help of mobile satellite geodetic receivers, the control the position of deep benchmarks with the help of mobile satellite geodetic receivers, the use of the state system of coordinates only at the initial stage for reference of the network sites to the local system of coordinates, geodetic measurements in the local system of coordinates, the decrease of the time and labor for works of detection of the oil pipeline coordinates for operational needs, simplification of the planned high-altitude position data exchange, storage and transfer during measurement at the increase of authenticity (precision) and the rate of formation of the result concerning the received data about the current position of pipelines and support, independent claims - 1, figures - 4.
(EP3124841) 1. A method for control position of above-ground pipelines under permafrost conditions, characterized in that it includes installation of deformation control benchmarks on piles of the support foundation at the distance of at least 0.5 m from the ground surface, installation of the ground deep benchmarks at the distance of no more than 1.5 km from each other and at least 50 meters from supports, installation of reference stations along the pipeline at the distance of 20-40 km from each other that are adapted to receive and transfer the data to the server, during installation of ground deep benchmarks and reference stations their coordinates in the state network are detected and the detected coordinates are translated to local coordinates by the key and then transferred to the server, after than the zero measurement cycle of deformation control coordinates of benchmarks in relation to ground deep benchmarks is realized, the zero planned high-altitude position of the pipeline is detected upon coordinates of benchmarks, coordinates of benchmarks are also transferred to the server and the digital pipeline model is built upon results of all measurements, then, during service of the pipeline, control measurements of coordinates of deformation control benchmarks are realized that characterize the current planned high-altitude position of the pipeline; control measurements are realized with the help of mobile GPS/GLONASS transmitters that provide the data receipt and transfer to the server, the current digital pipeline model is built that is compared with the design digital pipeline model and parts of the pipeline where deflection of its current position from the design one exceeds permitted values are detected, control measurements of coordinates of deformation control benchmarks are realized no less than once a month during the first year of the service of the pipeline and no less than twice a year at the remaining service period. 2. The method of claim 1, characterized in that measurement of coordinates of the benchmarks in relation to deep benchmarks in the local system of coordinates characterizing the zero planned high-altitude position of the pipeline is realized by optic control devices and/or means of global positioning. 3. The method of claim 1, characterized in that the device equipped by the GNSS receiver and means of wireless connection for the data receipt-transfer to the server is used as a mobile receiver. 4. The method of claim 1, characterized in that during the pipeline service control measurements of ground deep benchmarks coordinates are realized that are stored on the server and used for measurement of the deformation control benchmarks position by optic control devices, control measurements of ground deep benchmarks coordinates are made no less than once a month during the first year of the pipeline service and no less than twice a year at the remaining service period. 5. The method of claim 1, characterized in that deformation control benchmarks are made of the rolled steel, for example, the steel angle, pipe or fittings, with formation of a sharp angle, at this benchmarks are attached to the metal pilework or the support pile head in such way that the top of the sharp angle is the top point of the deformation control benchmark which coordinates are detected during the pipeline service. 6. The method of claim 1, characterized in that every pile of the pipeline support foundation is equipped by the deformation control benchmark. 7. The method of claim 1, characterized in that the deep benchmark consists of the metal pipe, the head of benchmark is made of the stainless steel with the polished spherical surface and installed into the bore of the concrete "anchor", at this the benchmark is equipped with the protective case made of the metal pipe filled by the sandy nonfrost-susceptible soil. 8. The method of claim 1, characterized in that each benchmark is installed to the depth of no less than the depth of the border of the maximum seasonal soil thawing increased to 1 m, in particular, to the depth of no less than 11 m. 9. The method of claim 1, characterized in that sensors of planned high-altitude position are installed on the pipeline compensators at the place of the maximum possible change of the pipeline position, and the sensor data are sent to the server. 10. The method of claim 1, characterized in that the reference station includes the multi-frequency navigation units of GLONASS consumer or GLONASS/GPS of the phase mode; the multi-frequency GLONASS or GLONASS/GPS geodetic GNSS aerial with multi-path and re-reflected signal suppression systems, the eccentricity value of the phase center that is no more than 2 mm, the device for fixing on the fixed object; the computer with the controller function to set up the equipment of the permanent reference station; the software to perform main functions of the reference station; the standby power unit (if necessary).