Mining method for treating goaf remaining intervening pillar by filling method

The invention discloses a mining method for treating goaf remaining intervening pillars by a filling method. The method comprises the following steps of tunneling an ore removal roadway into an intervening pillar (16) on one side of a middle section transportation roadway (1) to reach an ore body ha...

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Bibliographic Details
Main Authors WANG WEIPING, LI HONGFEI, LI PENGCHENG, LIU HAILIN, SUN GUOQUAN, WANG YUBO, LIU SHUAI, LI HELIN, LI NING
Format Patent
LanguageChinese
English
Published 25.09.2020
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
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Summary:The invention discloses a mining method for treating goaf remaining intervening pillars by a filling method. The method comprises the following steps of tunneling an ore removal roadway into an intervening pillar (16) on one side of a middle section transportation roadway (1) to reach an ore body hanging wall, and expanding the top of the ore removal roadway by adopting a fan-shaped medium-lengthhole to form a horn-mouth-shaped bottom structure; arranging a cut raise (12) and a pedestrian ventilation raise (3) in a intervening pillar hanging wall ore rock contact face and a footwall surrounding rock respectively, and enabling the cut raise (12) and the pedestrian ventilation raise (3) to communicate with the upper middle section air return roadway, and tunneling layered cross gateways (9)in the pedestrian ventilation raise (3) in the vertical direction at intervals of a certain height to reach the intervening pillar footwall boundary; and drilling upward parallel blast holes (11) layer by layer in circulating
Bibliography:Application Number: CN202010746866