Method and Device for Mining Subsurface Deposits
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United States of America Patent
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N/A
Issued Date -
Sep 17, 2009
app pub date -
Jul 25, 2006
filing date -
Aug 3, 2005
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
In a method for mining underground deposits using a mining machine, wherein an upper and a lower drift are driven, which extend on both sides of the deposit to be mined, and a preliminary bore is sunk between the two drifts, a supporting device is fixed at the mouth of the preliminary bore in the upper drift. A mining machine supported on the supporting device is positioned at the mouth of the preliminary bore so as to be oriented in the longitudinal direction of the preliminary bore, and the mining machine is advanced from the upper drift to the lower drift corresponding to the course of the preliminary bore.
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