Recently, with the completion of the installation of the last steel arch, the connection line of Rail Transit Line 5 and Rail Transit Line 2 of Cultural Square Station has been successfully opened.
The Cultural Square Station is a transfer station, and the rail transit line 5 under construction and the rail transit line 2 that has been operated are transferred here in an L-shaped node. The total length of the connecting line of rail transit line 5 and line 2 is 3115 meters, using the mining method of construction, located below the cultural square, under and sideways through multiple risk sources, belongs to the construction close to the existing line, the construction risk is extremely high.
During the construction, the construction party strictly implemented the plan and carried out real-time monitoring and measurement, and deep hole grouting was adopted in the tunnel to strengthen the soil and block the internal seepage channelTimely follow-up of the temporary inverted arch, strict control of the first step spacing, and the use of manual excavation instead of mechanical excavation, lasted more than 1 year, and finally on December 8, successfully achieved the hole. After the official opening of Rail Transit Line 5, trains of Line 2 and Line 5 can be interconnected and vehicles can be overhauled through this liaison line. Next, the construction party will focus on the construction of Gay Street Station of Rail Transit Line 5.
*: Changchun News WeChat.