People's Daily inform Xiangshan Tunnel ( China-Lanzhou Railway) of the China-Lanzhou Railway escavation reach number 1 inclined shaft. China Railway Beijing Engineering Bureau escavate 3640 meter start from tunnel entrance to Number 1 inclined shaft. 1100 days of work reach on February 10.

Difficult tunnelling with fault zones, water inflow (sometime 5700 m3 day) gas explosion danger. China Railway Beijing Engineering Bureau Zhonglan Railway Project Department adapt special construction plan, tube shed with radial grouting.

The China-Lanzhou Railway is important part of "8 vertical and 8 horizontal" railway network Jinghu-Yinlan-Lanzhou channel.

http://nx.people.com.cn/BIG5/n2/2022/0211/c192482-35129633.html