Guidelines for the Sitting and Storage of Tunneling Pipe Sections in Immersion Tunnels (T/CCTAS 213-2025)
T/CCTAS 213-2025 Guidelines for the installation of pipe sections using the caisson method and their deployment on the bottom of the tunnel
Basic Information
Scope
Main technical content: At present, there are no relevant standards and norms for evaluating the laying and storage of pipe sections of immersed tunnels, which hinders the application and development of this technology. This guide is based on the Shenzhen-Zhongshan Channel immersed tunnel project, with the aim of promoting and standardizing the application of the laying and storage technology of immersed tunnel pipe sections, and improving the overall manufacturing level of immersed tunnels in China. The guide provides guidelines and recommendations for the laying and storage of pipe sections of immersed tunnels, including general principles, engineering investigation and survey, design, storage operations, monitoring, safety protection, and quality control. It is applicable to the design, construction, and quality control of the laying and storage of pipe sections of immersed tunnels.