On October 20th, the cumulative excavation of the double-track tunnel between Baida No. 1 Well and Dayun Station in the Fifth Work area of the 2nd contract section of Shenzhen-Dalian Intercity Railway exceeded 8,000 meters, marking that the project has fully entered the sprint stage and laying a solid foundation for the on-schedule completion of the entire line.

On October 10th, it was learned from the Hangzhou Municipal Commission of Housing and Urban-Rural Development that the tunnel of the Zhijiang Road Water Pipeline Corridor and Road Improvement Project (Zhipu Road - Fuxing Road), one of the "Thousand Projects Trillion Yuan" projects in Zhejiang Province, has been fully connected recently.

On September 14th, the double-track shield tunneling of the Lingkong North Road Station - Gaoling Middle Ventilation Shaft section and the vehicle depot entry and exit Line - Lingkong North Road Station section of the 105th contract of the first phase of Shanghai Metro Line 22 (Chongming Line) was successfully completed. 

On August 17th, with the cutterhead of the "Shanhe" shield machine with a diameter of 17.5 meters breaking through the ground, the shield section of the Yellow River Tunnel on Huanggang Road in Jinan City, invested and constructed by Jinan Urban Construction Group and undertaken by China Railway 14th Bureau Group, was successfully excavated. This world's largest diameter underwater shield tunnel was successfully connected.

Recently, with the launch of the "Tongze" mud-water-gas balance shield machine, the major water conservancy infrastructure project in Shenzhen - the Shawan River Shenzhen Reservoir Diversion and Drainage Project - has officially entered the underground tunnel construction stage.

On March 17, the Chongtai Yangtze River Tunnel "Pilot", independently developed by China and the world's largest diameter high-speed iron shield machine, was excavated to the 2500 ring, breaking through the 5000 meters mark, leaving only 660 meters from the center of the river.