METHOD FOR MONITORING THE POSITION OF ABOVE-GROUND PIPELINES UNDER PERMAFROST CONDITIONS

摘要

The invention relates to engineering geodesy for monitoring a height and deformation of a pipeline. The invention includes use of a complex of interrelated monitoring measures that include monitoring a control position of deformation control benchmarks using optic geodetic devices and mobile satellite geodetic receivers. A state geodetic network is used only at an initial stage for reference of the network sites to the local system of coordinates. Geodetic measurements are then converted to a local system of coordinates. The invention decreases an amount of time and labor for detection of the oil pipeline coordinates for operational needs and simplifies a planned high-altitude position data exchange, storage and transfer during measurement.

主权项

1. A method for monitoring positions of an above-ground pipeline located in areas subject to permafrost conditions, comprising:
installing deformation control benchmarks on piles of support foundations of the above-ground pipeline, the deformation control benchmarks being positioned at least 0.5 meters (0.5 m) above a ground surface; installing deep benchmarks spaced apart by 1.5 kilometers (1.5 km) or less and spaced at least 50 m from any of the support foundations; installing reference stations along the above-ground pipeline such that the reference stations are spaced from each other by between 20 km and 40 km from each other and are adapted to communicate with a server; detecting initial coordinates of the deformation control benchmarks and the deep benchmarks during installation; detecting initial heights of the above-ground pipeline at the locations of the benchmarks; transmitting the detected initial coordinates and the detected initial heights to a server for building a digital pipeline model; detecting subsequent coordinates and subsequent heights of the above-ground pipeline using a rover; transmitting the detected subsequent coordinates and the detected subsequent heights of the above-ground pipeline to the server; and determining any deflection of the above-ground pipeline by comparing the detected initial heights of the above-ground pipeline and the detected subsequent heights of the above-ground pipeline by the server.