USING OF THE STRUCTURAL-AND-GEOLOGICAL AND MAN-MADE CARACTERISTICS TO DETECT THE ORIENTATION OF THE MAIN TECTONIC STRESSES IN EKATERINBURG

Abstract

Characteristics studies of strain fields in the city of Ekaterinburg were carried out on the basis of an idea of the role of the earth’s crust in formation and activation of tectonic snaps. Measurement data of strained conditions of rock massifs and the results of studied hydrological role of tectonic disturbances in ore deposits of the Urals were used.
For estimating of main typical stresses the analysis of geological structural maps of the city territory, measurements of mass fractures occurrence at geological objects with the subsequent tectonophysical interpretation of jointing diagrams were carried
out. Special attention has been paid to the role of active tectonic dislocations in increasing accidents of the city underground water-pipe communications. Two directions of the main maximum strains were defined on the basis of the complex analysis of geological and man-made features of tectonic influence. At present, the main maximum strain influences mostly the geological environment of the azimuth 2600. The effect of the strain influence oriented along the azimuth 2850 is somewhat weaker. Tectonic movements in the geological environment exert considerable, especially on underground communications.