China Railway Fifth Bureau complete after 4 years and 5 months 11.34 kilometers Dapingshan Tunnel on Chengdu-Kunming Railway in Ebian Yi Autonomous County, Leshan City, Sichuan Province.

Xinhua news agency inform tunnel pass 5 fault zones and syncline geological structure.Water 32,000 cubic meters. Low gas and high geothermal. Difficult ventilationhigh temperature work environment 45 degrees.

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