This article presents the results of the conducted field research of two electronic total station, included in the park of geodetic devices performing geodetic work. The article is written on the materials of research work that the authors carried out in the Samarkand region of the Bulungur reference satellite geodetic test site. Electronic total stations, along with receivers for Global Navigation Satellite Systems (GNSS), are now among the most popular tools for surveying and geodesy. One of the important requirements of users to these geodetic instruments is the accuracy of their measurements, on which the accuracy of the surveying and geodesy work performed depends. The studies were carried out on a specialized reference geodetic network, approved for such tests, which is a reference tool for metrological certification of geodetic instruments.
To improve the quality of construction and increase the durability of engineering structures under construction, complex geodetic works should be performed, including geodetic observations of deformations of structures. These observations are carried out during the construction of buildings and structures and their operation, mainly before the period of deformation stabilization. In this regard, a reliable statistical definition of deformations close to the limit is necessary, based on the data of geodetic observations. The research helps to improve the definition of deformations of structures using the Fischer’s F-test and the Foster-Stuart test, based on analysis of the measurements of horizontal and vertical monitoring of industrial structures. According to the results, the magnitude of the subsidence plays a more significant role from than its absolute value, thus the value of the deformation intensity is of primary importance in justifying observation periodicity.
The article examines the influence of refraction on the results of measuring the horizontal angle in special places. In the conditions of the hot and arid climate of Uzbekistan in the polygonometric network of river banks, according to the results of field experiments, the new version of the developed methodology of the GIS makes it possible to increase the accuracy of measuring horizontal angles and lengths of lines. Significant temperature changes along the water and the coast, on rocks, in the upper layers of sand-concrete pavements are also explained by the properties of the heat and radiation balance.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.