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Patent
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Patent
CA 1188364
ABSTRACT The analysis of rock ahead of a working face in an underground mine. A plurality of boreholes are formed in predetermined directions in rock ahead of a rock face in the mine, at least one of the boreholes being at an angle to the other boreholes. A probe is located in each borehole and is caused to move along the borehole and data obtained from the probe which relates to the rock is logged in a recorder. Logged data may be used for later analysis, or for in-situ analysis. The probe may produce multiple logs. The data logged includes lithological information on the rock and the angular direction of the borehole. The presence of fluids, such as noxious gases, in the borehole can simultaneously be detected.
396404
Howard Derik
Le Blanc Smith Guy
Bereskin & Parr
Grathnail Development Company Limited
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