Micro, Macro & Mezzo Geoinformation (Jun 2018)
Determining points stability in geodetic control networks using Hannover method
Abstract
The structures and the land which they are built on, are under constant and / or occasional action of external and / or internal forces, which leads to geometric deformation and their displacement. For the purpose of timely detection of the mentioned deformations and displacements, it is necessary to perform continuous control measurements. Such control measurements can be implemented through certain geodetic methods. By using geodetic methods, information on structure or ground displacement and deformation can be obtained. This paper presents the general procedure of determining the stability of points using a Hannover method and its mathematical procedure. The practical part of this paper, carried out by Hanover method is based on measurements in two epochs (1.Epoch 96 and 2.Epoch 97) carried out in purpose of testing and calibration of certain methods and instruments at the polygon „Novoselka“ (Vuchkov, 2000). Application of the method in this paper aims to present the procedure for its performance and determine its strength by comparison of achieved results with the results of other method applied on the same measurements. In order to preserve continuity in the paper, there is a brief explanation of the need and way of setting the geodetic control network, elevation of the measurements and part of the world mostly applied methods of examination of points stability. The Conclusion also refers to the deficiency of all statistical methods in general, due to the duration of time needed to perform the geodetic measurements.
