Study on application of microtrilateration geodetic network for monitoring of hydrotechnical construct ions

Among geodetic methods for monitoring of hydrotechnical constructions, the application of horizontal geodetic networks in the form of triangulation, trilateration, or a combination thereof, to determine horizontal displacements of a certain dam, is performed assuming that the direction along which the most significant position changes are expected is known. Therefore, the design of a horizontal geodetic network for dam monitoring favourable geometry will be taken into account, to highlight with high precision horizontal displacements of the control points in the direction of interest. In the case study, the design and distance measurements on the model within a microtrilateration geodetic network are presented in order to determine the dam's horizontal displacement vectors, exemplifying the adjustment computation using least squares method and evaluating the precision of the results, of which practical conclusions and recommendations of this method will be deduced.