During the exploitation of a multi-storied building, certain changes can occur in its geometric parameters – the deformations caused by the factors of natural or man-made origin. The deformation processes are mainly revealed and monitored by the geodetic methods with using the most up-to-date equipment, which is regulated by current legislation.This research work analyzes today’s development of methods for detecting and monitoring the deformation processes in buildings and structures by using laser scanners, GNSS system and non-metric cameras with QR-coded targets, method of Persistent Scatterers Interferometry.The measurement of deformations in the basis of foundations of buildings and structures, that are exploited, is carried out in case of appearing impermissible cracks, opening of seams, as well as a sudden change in the building condition. Thus, in order to monitor the subsidence process in a multi-storied building, the regular observations over vertical movements of deformation control benchmarks are optimal by the method of high-precision geometric leveling with a short beam. In this respect, a program of observations must be created for each specific object.The research work describes the results of selecting the points of elevation basis, the places of setting the deformation control benchmarks and development of methodology of observations over subsidence of a multi-storied building foundation in Ivano-Frankivsk city. As a result of the initial series of measurements performed, the elevations of planned deformation control benchmarks were defined to subsequently serve as an initial point in determining the subsidence values of a building foundation. The performed preliminary assessment of accuracy of the network designed and analysis of the measurement results of the initial series prove the obtained accuracy of determining the height of the weakest deformation control benchmark of 1 mm.

Наведено результати вибору пунктів висотної основи, місць закладання деформаційних марок та розроблення методики спостережень за осіданнями фундаменту багатоповерхової будівлі в м. Івано-Франківськ. У результаті виконання початкової серії вимірів визначені висоти закладених деформаційних марок, які будуть вихідними для встановлення величин осідань фундаменту будівлі. Виконані попередня оцінка точності запроєктованої мережі та аналіз результатів вимірювань початкової серії свідчать про отриману точність визначення висоти найслабшої деформаційної марки 1 мм.