Anti-seismic waterproof flexible structure for shield tunnel segment joint

• Main Authors: WU QIANG, HUO FEI, LIANG WENYU, ZHANG MINQING, ZHAO DUO, JIA DAPENG, ZHAO CHENSHENG, MIAO ZHUANG, LI BOKANG, MENG QINGYU, WANG PING, MA LIYAO, WANG XU, CAI LIBIN, BAI HONGGUO, IM SUNG-MIN, WANG LINUAN, HUO YONGPENG, ZHANG CHI
• Format: Patent
• Language: Chinese; English
• Published: 25.08.2023
• Subjects: EARTH DRILLING; FIXED CONSTRUCTIONS; GALLERIES; LARGE UNDERGROUND CHAMBERS; MINING; SHAFTS; TUNNELS

The invention provides an anti-seismic waterproof flexible structure for a shield tunnel segment joint, which comprises a rubber contact pad and an inter-ring flexible joint which are arranged on the side walls, facing a circular seam, of two adjacent rings of shield segments, the inter-ring flexible joint comprises a rubber composite steel bolt connecting piece and a shape memory alloy bolt connecting piece which are arranged at the circular seam of two adjacent shield segments at intervals, and the rubber composite steel bolt connecting piece comprises a rubber composite steel bolt and a steel bolt sleeve matched with the rubber composite steel bolt. The rubber composite steel bolt comprises a high-performance bolt and a rubber layer wrapping the periphery of the high-performance bolt, and the shape memory alloy bolt connecting piece comprises a shape memory alloy bolt and a bolt sleeve matched with the shape memory alloy bolt. By arranging the full-ring rubber contact pad at the circular seam of the shield