On January 15, the second phase of rail transit line 2, from youjujie station to guigang station, was smoothly connected with the last blast of tunnel blasting. Since then, guiyang city rail transit line 2 phase ii project was completed.

On January 13, the 17.5-kilometer exit of the million (xiang) railway from China, Laos, kunming (Ming) to no.5 inclined shaft was successfully completed, and the tunnel tunneled 106,60 meters, breaking the 10,000-meter mark. This provides an important guarantee for accelerating the construction of the tunnel and lays a foundation for the tunneling.

On January 9, it was learned that, with the steady tunneling of "qianjin" shield tunneling machine, guiyang line 3 civil engineering project department of 14th bid successfully completed the construction task of running down the guiyang-guangzhou high-speed railway, declaring the first shield tunneling machine in guizhou province to successfully run down the guiyang-guangzhou high-speed railway.

At 16:00 on January 8, nanchang metro line 4, the first tunnel in the old city section of nanchang metro line 4 was completed in two directions.

The new longyao road cross-river tunnel starts from the intersection of longyao road and longwu road in the west and ends at changqing road, chengshan road, with a total length of about 3,251 meters. The construction of the section was completed on April 5, 2010, providing an effective guarantee for the transportation of the expo.

Recently, "hongrun 22" shield tunneling machine broke through the shield well at chencun north railway station, marking the smooth completion of the left line tunnel between guangzhou south railway station and chencun north railway station in the west extension of guangzhou metro line 7. On December 19, 2019, "hongrun 23" had successfully completed the construction of the right-line tunnel. Since then, the tunnel between guangzhou south railway station and chencun north railway station in the west extension of line 7 has been connected by two lines.