Mould bag grouting plugging goaf roadway inclined shaft device and plugging method

• Main Authors: SHI JIBIAO, BO PENGLEI, LIU JIAJUN, XIONG CAIXIA, DING CHENJIAN, WU CHENXI
• Format: Patent
• Language: Chinese; English
• Published: 24.06.2022
• Subjects: EARTH DRILLING; FIXED CONSTRUCTIONS; MINING; SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS

The invention discloses a device and method for blocking a goaf roadway inclined shaft through mold bag grouting. The device comprises a mold bag, a grouting pipe and a protection assembly. A group of corresponding open holes are formed in the mold bag, and elastic pieces capable of shrinking the open holes are arranged at the edges of the open holes in the mold bag; the grouting pipe is provided with one or more grout outlet sets, the grouting pipe is detachably arranged on the mold bag in a penetrating mode from the open hole, and the grout outlet sets are all located in the mold bag. The protection assembly is arranged on the periphery of the grouting pipe and the periphery of the mold bag in a sleeving mode and comprises a protection pipe body and a protection pipe shoe, the protection pipe body is formed by splicing a plurality of pipe parts through water soluble threads, a plugging piece is arranged between one end of the protection pipe body and the grouting pipe, and the protection pipe shoe is arrang