Gently-inclined extremely-thin gold vein mining method

• Main Authors: XIN QINGFENG, LIU YAXIONG, ZHANG DONGSHENG, YUAN YAHUI, WANG ZHI, HU MAOMAO
• Format: Patent
• Language: Chinese; English
• Published: 08.10.2021
• Subjects: EARTH DRILLING; FIXED CONSTRUCTIONS; GALLERIES; LARGE UNDERGROUND CHAMBERS; MINING; MINING OR QUARRYING; SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS; SHAFTS; TUNNELS

The invention discloses a gently-inclined extremely-thin gold vein mining method. A chamber structure is arranged in the mode that a plurality of standard ore blocks are divided in the vein trend; the length of the ore block is 50m, the vertical height of the middle section is 25m, the width is the natural extension inclined length of the middle section with the vertical height of 25m along the vein; the mining preparation cutting method comprises the following steps that a lower-stage haulage roadway is arranged at the end part of the lower middle section of the ore block along the vein trend; an upper-stage haulage roadway is arranged at the end part of the upper middle section of the ore block along the vein trend; and in-vein cutting rises are arranged at intervals of 10m perpendicular to the trend of the vein, and stoping operation is carried out along the in-vein cutting rises; The gently-inclined extremely-thin gold vein mining method has the advantages of being low in mining preparation, cutting and f