开挖直径12.23米！“江汉云梦号”长沙下线

近日，由铁建重工与中铁隧道局联合打造的国内应用最大直径单护盾TBM（全断面硬岩隧道掘进机）“江汉云梦号”在长沙下线。

Recently, "Jianghan Yunmeng", the single shield TBM (full-face hard rock tunnel boring machine) with the largest diameter applied in China, jointly developed by China Railway Construction Heavy Industry Co., Ltd. and China Railway Tunnel Group Co., Ltd., was rolled off the production line in Changsha.

“江汉云梦号”开挖直径12.23米，整机长约140米，重约3200吨，设计最小水平转弯半径600米，适应最大坡度10%，掘进长度11.77公里，是国内应用的最大直径单护盾硬岩掘进机。

The "Jianghan Yunmeng" has an excavation diameter of 12.23 meters. The whole machine is about 140 meters long, weighs approximately 3,200 tons, has a designed minimum horizontal turning radius of 600 meters, can adapt to a maximum slope of 10%, and has a tunneling length of 11.77 kilometers. It is the single shield hard rock tunnel boring machine with the largest diameter applied in China.