July 17，Super-large diameter high-speed railway tunnel shield machine jointly built by China Railway Construction Heavy Industry and China Railway 14th Bureau“Hero”Offline in Changsha, Hunan。“Hero”The whole machine is about 134 meters long.，Excavation diameter up to 14.8 meters，It is the highest speed of 350 kilometers per hour currently used in China.、Shield Machine for Construction of Largest Diameter High-speed Railway Tunnel，It is also the first super-large diameter tunnel shield machine used in Jiangxi Province.。

Offline ceremony site

Address by Zhang Handong, Chief Engineer of Changjiu Intercity Railway Co., Ltd.

Speech by Shi Qingtao, Secretary of the Party Committee of China Railway Shisiju Group Shield Engineering Co., Ltd.

Standing Committee of the Party Committee of Railway Construction Heavy Industry、Secretary of the Discipline Inspection Commission、Chairman of the Supervisory Board、Speech by Employee Supervisor Hu Xiaobing

Hui Bobo, deputy general manager of Central China Regional Command of China Railway Construction Heavy Industry, presided over the ceremony.

“Hero”It will be applied to the shield tunnel project of Tianxiang Avenue.，The tunnel is the control project of Changjiu High-speed Railway Project.，The project has a large excavation section.、The tunnel section is long、There are many geological risks.。In view of the complex and changeable geological conditions and engineering characteristics of the project,，“Hero”A number of innovative technologies have been adopted，It provides a key equipment guarantee for tunnel shield tunneling.，To contribute to the high-quality construction of Changjiu High-speed Railway。

Changjiu High-speed Railway is the country.《Medium and long term railway network planning》“Eight vertical and eight horizontal”It is an important part of the Beijing-Hong Kong corridor in the main high-speed railway corridor.，It is an urban agglomeration in the middle reaches of the Yangtze River.、The important transportation infrastructure for the interconnection of the urban agglomeration around Poyang Lake，For Jiangxi Province to build an integrated transportation system in Changjiu、Further docking and integration into Guangdong-Hong Kong-Macao Greater Bay Area，Implementing the development strategy of the Yangtze River Economic Zone，It is of great significance to promote high-quality economic and social development along the line.。