Vliv hlubinného dobývání na polohové geodetické základy v OKR.

Abstract

The dissertation deals with the issue of horizontal shifts of trigonometric points due to deep mining in the Ostrava-Karviná district (OKR). In the first part the thesis deals with the theoretical movement of overburden due to conquest and the formation of a dropping basin, an overview of mining regulations and their coordinate systems and the development of trigonometric networks in our territory. In addition, there is a summary of the experience of the workers who performed the triangulation work in OKR. In the second part the thesis deals with Karviná part of OKR, where the coordinates of trigonometric points were determined by GNSS method and compared with the result of the last triangulation from 1991. For a clear graphical representation of the observed displacements and their confrontation with the theoretical surface dips, a map was developed in the scale of 1 : 40 000.