Untersuchung der elastischen Eigenschaften von Gesteinsschichten in untertaegigen Bohrungen mit einer Ultraschall-Bohrlo...
Germany
Germany
Germany
Germany
Germany
New, explosion-protected shuttle probes serve to measure natural gamma radiation, rock structure and borehole geometry. The measuring programme of geophysical probels for exploration of strength-relevant petrophysical parameters is particularly important for a geotechnical assessment of bedrock and thus for enhancing safety in mining, e.g. by preve...
Germany
Germany
Germany
The research and development project focused on the preconditions for directional drilling to improve methane extraction and to ensure higher safety in mining. The drilling technology had to be adapted to the seam contour. Selective drilling of boreholes up to 300 m long will improve the efficiency of methane extraction, thus reducing the methane c...
Germany