Project Name: China Russia East Gas Pipeline Project (Yongqing Shanghai) Yangtze River Shield Tunneling Project

Construction Unit: China Railway Tunnel Group Co., Ltd

Equipment number: China Railway Equipment 'Smooth No.' shield tunneling machine

Blade diameter: 7.95 meters

Excavation length: 10.26 kilometers

Project features: This project is the first project in the construction of the national pipeline network, with a shield tunneling of 10.26 kilometers, underwater excavation of 7500 meters, and a maximum water pressure of 0.73 megapascals. It is currently the longest shield tunneling distance, deepest burial depth, and highest water pressure river crossing project in the world's oil and gas pipeline field.

Starting year: May 2021

Completion year: December 2022