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Změny horninového masívu v blízkosti okraje poklesové kotliny
Doležalová, Hana
Repeated geodetic and geophysical surveying near the margin of a creating subsidence depression has shown on a fluctuation of heights of levelled points and on significant rock massif changes. The possible cause of these changes may be found not only in progressive stress-deformational changes due to undermining but also in the changing regime of the groundwater. Confrontation of the levelled height changes with the height of the groundwater level shows that the regime of the groundwater may be a substantial cause of surface height changes. Also the resistivity anomalies found by geophysical measurements can be caused by change of hydro-geological regime.
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Complex geodetic and geophysical measuring in the subsidence depression
Doležalová, Hana ; Kaláb, Zdeněk ; Müller, Karel
The usage of geodetic and geophysical methods to measure at the undermined territory is described in the contribution. Beside geodetic methods that are used in the subsidence depression to find out both motions and deformations of the surface and buildings there's also presented the suitability to use geophysical methods in the mining area. The principles of seismologic measurements to review buildings exposure are described too, as the observation of influences of underground mining on buildings is very useful.
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