Research on Key Technologies for Translation and Dismantling in Tunnel of Large-Diameter TBM

Based on actual construction cases, this paper focuses on the design of main machine translation tooling and the main machine translation process in the tunnel of large-diameter TBM. Aiming at the design and dismantling tooling of the large-diameter screw machine in the tunnel, the key work of the tooling and the dismantling process was expounded. According to the requirements of the Back-up system retreat to the launching shaft, all Gantries retreat method is designed, the special tooling design is carried out, and the method is explained. SolidWorks 3D modeling software was used to build the disassembly model and conduct finite element analysis to check the strength of the tooling. This case ensures the safety of construction and improves the efficiency of TBM dismantling, which has reference significance for the future dismantling of large-diameter TBM in tunnel.