Small-section synchronous ore caving subsequent filling recovery process for top and bottom pillar residual ore resources

• Main Authors: WANG LEI, E YUQIANG, ZENG LINGYI, LI YUNSHENG, LI XINWEI, LIU ZEZHOU, WANG DONGDONG, FANG XIANHUI, LIAO JIUBO, WEN HUISHAO, PENG BIN, XIONG PENG, LIU ZHIJUN, LI KUN
• Format: Patent
• Language: Chinese; English
• Published: 12.01.2024
• Subjects: AMMUNITION; BLASTING; EARTH DRILLING; FIXED CONSTRUCTIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; MINING; MINING OR QUARRYING; SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS; WEAPONS

The invention discloses a top and bottom pillar residual ore resource small-section synchronous ore caving subsequent filling recovery process. The method relates to the technical field of mining, and comprises the following steps: S1, dividing the middle section of an ore body into a top pillar and a bottom pillar; S2, carrying out full-tailing cemented filling on a goaf below the top pillar; s3, an outside-vein roadway is arranged at the position, a certain distance away from the footwall of the ore body, of the middle section, a draw shaft communicated with the lower middle section is arranged beside the outside-vein roadway, a stope connection way is arranged at the position of a column between the outside-vein roadway, and then a top column rock drilling roadway parallel to the inside-vein roadway is arranged; s4, the top and bottom columns are divided into two small sections on the vertical face, and upward fan-shaped shallow holes are drilled in the two small section roadways respectively; s5, blasting