Jintang Undersea Tunnel Team Conducts Successful Pressure Experiments
The Jintang undersea tunnel project has successfully implemented high-pressure tool changes for its shield machine, a world-recognized challenge. The Jintang undersea tunnel achieved high-precision docking at the seabed after traversing high water pressure and complex geological layers. The Jintang Undersea Tunnel's maximum burial depth is 78 meters below sea level, experiencing a maximum water head pressure of 8.5 bar, which exceeds the traditional 5 bar safety limit for compressed air operations. The Jintang undersea tunnel project team has successfully conducted experiments under different pressure conditions, ranging from 5.9 bar to 7.5 bar, and in real-time underwater.
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Sources · 7 independent
CNR Voice of China
“但锅机超高压进仓更换刀具作业是世界公认的难题。中铁十一局永州铁路项目党支部书记阮彭成说，传统压缩空气进仓作业的安全压力上限为5巴，而金塘海底四道，最大埋深位于海平面下，78米，最高水头压力达到8.5巴”
CNR Voice of China
“金塘海底四道，最大埋深位于海平面下，78米，最高水头压力达到8.5巴，相当于铁人，手臂面积需要承受极大的压力。”
CNR Voice of China
“中铁十一局永州铁路项目党支部书记阮彭成说，传统压缩空气进仓作业的安全压力上限为5巴，而金塘海底四道，最大埋深位于海平面下，78米，最高水头压力达到8.5巴”
CNR Voice of China
“团队已在5.9巴至7.5巴不同压力条件下成功开展实验，并在海底实时。单日最高可完成四把工具的更换。”
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