Recently, as a key project in Shanghai, the Shanghai Airport Liaison Line project was included in the "White List" of Shanghai Major Construction Sites for Resumption of work and production (the first batch), officially starting the road of resumption of work and production.

June 3, Wuhan Lianghu tunnel Province Bo working well site, about 5 stories high "Gongxun" shield machine tool plate slowly lifted down the well, the shield machine to complete the assembly of important nodes, is expected to the end of June tunneling.

At 21:21 on May 31, the right line of Tianjin Metro Line 7 from Xinghua Road Station to Zhangdaokou Station (hereinafter referred to as Xingzhang Interval), led by China Construction Foundation and constructed by The Second Engineering Bureau of China Construction Engineering Co., LTD., was successfully opened with the cutter head of "Yue Yue" shield machine slowly breaking through the earth. This is the 5th single-line tunnel of the 3rd Bid Project Department and the 6th single-line tunnel of Tianjin Metro Line 7.

On May 27, nanjing metro line 1 north extension engineering swallow rocky mountain ~ round bottomed basket stand right line tunnel shield interval smoothly, so far, the nanjing metro line 1 across the north extension project of shield interval is realized, laid a solid foundation for line opened, for development of nanjing urban rail transit construction and urban write new footnote.

At 15:50 on November 21, the first section of the west branch of yuliangzhou Tunnel, known as "the first tunnel of the Qianli Han River", sank smoothly and docked with the bank precisely, which means that the installation of the sinking tube opened the "acceleration".