Construction method of integrated reaction frame

• Main Authors: WANG LEI, SHU JICHENG, ZHAO BIN, HE MINGSHENG, WU YULI, BIN SEOK-OH, ZHANG ZHE, LU KAIDAO, CHEN JIANFU, WEI CHAOCHAO, CHEN PENG, XU HUIWANG, SHI QINGTAO, SHENG ZHENGYANG
• Format: Patent
• Language: Chinese; English
• Published: 22.03.2024
• Subjects: EARTH DRILLING; FIXED CONSTRUCTIONS; GALLERIES; LARGE UNDERGROUND CHAMBERS; MINING; SHAFTS; TUNNELS

According to the method for manufacturing the integrated reaction frame, a steel reaction frame and portal sealing are not needed, concrete can be directly poured between an exposed segment and a cavern to manufacture the integrated reaction frame, meanwhile, the portal sealing requirement is met, the safety coefficient is high, the real-time period is short, the construction cost is low, and the construction efficiency is high. The method mainly comprises the steps that pipe pieces are transported to the front end of a shield tunneling machine to be assembled, after multi-ring pipe pieces are assembled according to the length of a shield tail, the pipe pieces are made to move backwards through a thrust oil cylinder, and the rear end of the first ring pipe piece is made to exceed the shield tail; the inner wall of the in-hole secondary lining and the rear end of the first ring pipe piece are spliced through a plurality of formworks, and then an annular counter-force frame is formed through concrete pouring; a