On March 22, with a rumbling sound, the 'Express Star No. 2' shield machine broke through the wall in the shield receiving shaft at Hangzhou West Railway Station on Section 2 of the Hangzhou Airport Rail Express Line. The right line of the section from Central Park Station to Hangzhou West Railway Station was successfully completed, making it the first shield tunnel section on the Hangzhou Airport Rail Express Line project to achieve full breakthrough on both lines.
 

It is understood that the Hangzhou Airport Rail Express Line has a total length of about 57 kilometers and includes 15 stations, passing through areas such as Future Sci-Tech City and Airport New City, and connecting Hangzhou's most important transportation hubs including Hangzhou West Railway Station, Hangzhou East Railway Station, and Xiaoshan Airport. As an important supporting project for the 2022 Hangzhou Asian Games, once completed, it will not only serve the Asian Games but also help expand the radiation range of the main urban area, alleviate traffic pressure in the main urban area, and promote the integrated urban-rural development of Hangzhou.

Among them, the construction content of Section 2 of the Hangzhou Airport Rail Express Line includes Hangzhou West Railway Station and the section from Hangzhou West Railway Station to Central Park Station, with a total length of 2.94 kilometers. The right line of the shield tunnel section from Central Park Station to Hangzhou West Railway Station, which was completed this time, is about 2.3 kilometers long and was launched on July 23, 2020. The left line section is about 2.3 kilometers long, launched on July 2, 2020, and was completed on March 8, 2021.

The geological conditions in this construction section are complex, with soft strata such as sand layers and muddy soil, and local sand layers intruding into the tunnel excavation cross-section. There are many surface buildings, abundant groundwater, and high pressure, resulting in high construction risks. The command center, on the one hand, organized expert demonstrations to select shield machine types suitable for the section, and on the other hand, continuously optimized the construction plan and strengthened ground and in-tunnel data monitoring to ensure the smooth progress of shield construction.