Title: Method of mining bedded mineral deposits with hydraulic extraction

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Abstract: In the method of mining mineral deposits with hydraulic extraction a seam to be mined is divided into long pillars along the strike, and each pillar is subdivided with extraction workings and breakthroughs into benches defining short working faces, whereafter a single hydromonitor mounted in an extraction working is operated for stoping in the two adjacent benches, in the direction of the gravity flow of the slurry therealong. In accordance with the invention, boundary or run-around entries are driven, and communicated with the extraction workings via cut breakthroughs, whereafter these cut breakthroughs are expanded up to the sole of the seam, whereby at the stoping of the extraction cut in the two adjacent benches in the direction of the sloping of the extraction and boundary entries the main stream of the slurry is removed from the stope through the boundary working.


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