Analysis and treatment method for reasons of water burst and mud burst of tunnel

• Main Authors: ZHAO RUILONG, ZHANG XUEMIN, XU RONGHAO, LI PING, CHEN CHANGJIANG, LI YUFENG, CHEN JUNWU, WANG MINGJIANG, XU ZUHONG, LIU CHUJUN
• Format: Patent
• Language: Chinese; English
• Published: 16.05.2023
• Subjects: EARTH DRILLING; FIXED CONSTRUCTIONS; GALLERIES; LARGE UNDERGROUND CHAMBERS; MINING; SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS; SHAFTS; TUNNELS

The embodiment of the invention provides a tunnel water burst and mud burst reason analysis and treatment method which comprises the steps that water burst and mud burst in a first tunnel are analyzed, and the position of a water burst and mud burst point is determined; the second tunnel is excavated, so that the tunnel face of the second tunnel exceeds the water burst and mud burst point; a water drainage pipe with a valve is drilled in the direction from the second tunnel to the water burst and mud burst point of the first tunnel, and water drainage and pressure reduction are conducted on the water burst and mud burst point; forepoling the water and mud bursting section of the first tunnel, and dredging forwards step by step; and excavating the water burst and mud burst section of the first tunnel, and gradually carrying out primary support and secondary water pressure resistant lining. According to the scheme of the tracer technology, drilling drainage, strong supporting, weak disturbance, short excavation