Fast water inrush prevention device for underwater tunnel

• Main Authors: SONG CHAOYE, LYU SHUQING, HE WEIGUO, DU BAOYI, LI YONG, CHEN HAN, LYU QINGSONG, WANG HANCHEN
• Format: Patent
• Language: Chinese; English
• Published: 08.05.2020
• Subjects: EARTH DRILLING; FIXED CONSTRUCTIONS; MINING; SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS

The invention discloses a fast water inrush prevention device for an underwater tunnel. The fast water inrush prevention device comprises an expandable airbag, an inflation pump, and a plurality of restraint belts, wherein the expandable airbag is fixedly arranged on the side wall of a tunnel lining, the inflation pump is arranged outside the tunnel and used for inflating the airbag, and the restraint belts are arranged outside the airbag and used for restraining the airbag in a compressed state. According to the fast water inrush prevention device for the underwater tunnel, the fast water inrush prevention device is suitable for tunnels with various cross-section shapes, the problems such as construction and transportation affecting, surrounding rock condition limiting, and difficult building and dismantling due to the fact that a previous tunnel water retaining device occupies a tunnel clearance are solved, when a water inrush accident occurs in the tunnel, a water retaining wall canbe formed by opening an