Darui Railway Control Engineering, China’s first long tunnel of railways – The 34.5-kilometer Gaoligongshan Tunnel ushered in the smooth progress of China’s first remanufactured tunnel boring machine (TBM) “Caiyun No. 1” on August 28. Originating. This is another major progress made by the China Railway Tunnel Bureau Dali Railway Project following the breakthrough of 500 meters on the 1st of the shaft construction on August 15.
Accordingly, the construction of the Gaoligongshan Tunnel has created the largest number of railways in the railway line, the first long tunnel in the railway, and the largest diameter TBM independently developed. Dali Railway starts from Dali in the east and Ruili in the west. It has a total length of about 331 kilometers and a design speed of 140 kilometers per hour. It is an important part of the “Belt and Road” initiative of the Trans-Asian Railway (West Line) China-Myanmar International Railway Passage. Cross-border cooperation, interconnection, and speeding up the development of frontier ethnic areas are of great significance.
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