Supporting and processing structure suitable for tunnel hidden karst cave

• Main Authors: ZHANG HONGJIA, ZHENG SHUAI, SONG YONGLIANG, WANG CHANGWEN, DONG QINGBO, YANG YONG, GAO FENG, LIU TIANHUA, LUO GUOCHENG, YUE KAIHANG, JIANG ANNAN, ZHENG JILIAN, JIANG XIANGSONG
• Format: Patent
• Language: Chinese; English
• Published: 11.12.2020
• 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 utility model provides a supporting and disposal structure suitable for a tunnel hidden karst cave, which comprises a concrete filling body and a drainage pipe, the concrete filling body is arranged at the bottom of a karst cave cavity, one end of the drainage pipe is arranged at the upper part of the concrete filling body, and the other end of the drainage pipe is connected with a drainage system; and one end of the grouting pipe extends into the karst cave cavity, the other end of the grouting pipe is fixedly connected with the tunnel lining, and the grouting pipe is used for grouting into the karst cave cavity to form a concrete filling body and forming an integrated supporting structure with the tunnel lining after grouting. The water in the cavity of the karst cave is continuouslydrained through the drainage pipe and drained out of the tunnel through the drainage channel, water seepage accumulation in the karst cave is avoided, and then water inrush, deformation or collapse of the tunnel is avoided.